{"id":100290,"date":"2026-02-15T20:32:05","date_gmt":"2026-02-15T20:32:05","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&p=100290"},"modified":"2026-07-17T03:17:14","modified_gmt":"2026-07-17T03:17:14","slug":"vibration-iso20816-8-compressors","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/vi\/calculators\/vibration-iso20816-8-compressors\/","title":{"rendered":"Ti\u00eau chu\u1ea9n ISO 20816-8 Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng cho m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston"},"content":{"rendered":"

Ti\u00eau chu\u1ea9n ISO 20816-8 Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng cho m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston<\/h1>\n

Ti\u00eau chu\u1ea9n ISO 20816-8 l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston?<\/h2>\n

Ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf ISO 20816-8 quy \u0111\u1ecbnh c\u00e1c ti\u00eau ch\u00ed \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng c\u1ee5 th\u1ec3 cho m\u00e1y n\u00e9n piston, bao g\u1ed3m c\u00e1c lo\u1ea1i m\u00e1y n\u00e9n kh\u00ed, kh\u00f4ng kh\u00ed v\u00e0 l\u00e0m l\u1ea1nh. Ti\u00eau chu\u1ea9n n\u00e0y thi\u1ebft l\u1eadp b\u1ed1n v\u00f9ng rung \u0111\u1ed9ng (A, B, C, D) d\u1ef1a tr\u00ean v\u1eadn t\u1ed1c \u0111o \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng mm\/s RMS, gi\u00fap c\u00e1c k\u1ef9 s\u01b0 x\u00e1c \u0111\u1ecbnh xem m\u00e1y n\u00e9n c\u00f3 ho\u1ea1t \u0111\u1ed9ng trong gi\u1edbi h\u1ea1n cho ph\u00e9p hay c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c.<\/p>\n

M\u00e1y n\u00e9n ki\u1ec3u piston v\u1ec1 c\u01a1 b\u1ea3n kh\u00e1c v\u1edbi c\u00e1c m\u00e1y quay nh\u01b0 m\u00e1y n\u00e9n ly t\u00e2m ho\u1eb7c m\u00e1y n\u00e9n h\u01b0\u1edbng tr\u1ee5c. C\u01a1 c\u1ea5u tay quay piston v\u00e0 l\u1ef1c kh\u00ed dao \u0111\u1ed9ng v\u1ed1n c\u00f3 trong thi\u1ebft k\u1ebf ki\u1ec3u piston t\u1ea1o ra m\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng cao h\u01a1n \u0111\u00e1ng k\u1ec3 trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ti\u00eau chu\u1ea9n ISO 20816-8 t\u1ed3n t\u1ea1i nh\u01b0 m\u1ed9t ph\u1ea7n ri\u00eang bi\u1ec7t c\u1ee7a b\u1ed9 ti\u00eau chu\u1ea9n ISO 20816 \u2014 vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c gi\u1edbi h\u1ea1n t\u1eeb c\u00e1c ti\u00eau chu\u1ea9n m\u00e1y quay (nh\u01b0 ISO 20816-3) cho m\u00e1y n\u00e9n ki\u1ec3u piston s\u1ebd d\u1eabn \u0111\u1ebfn c\u00e1c \u0111\u00e1nh gi\u00e1 sai l\u1ec7ch v\u00e0 qu\u00e1 th\u1eadn tr\u1ecdng.<\/p>\n

Ph\u1ea1m vi c\u1ee7a ISO 20816-8 mang t\u00ednh \u0111\u1eb7c th\u00f9: n\u00f3 \u00e1p d\u1ee5ng cho c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y n\u00e9n piston l\u1eafp tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng, v\u1edbi t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh \u0111i\u1ec3n h\u00ecnh t\u1eeb 120 r\/min \u0111\u1ebfn 1800 r\/min. Rung xo\u1eafn v\u00e0 rung c\u1ee7a tr\u1ee5c quay, c\u0169ng nh\u01b0 rung c\u1ee7a m\u00e1y d\u1eabn \u0111\u1ed9ng (\u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n, \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong) v\u00e0 thi\u1ebft b\u1ecb ph\u1ee5 \u0111\u01b0\u1ee3c d\u1eabn \u0111\u1ed9ng, n\u1eb1m ngo\u00e0i ph\u1ea1m vi c\u1ee7a ti\u00eau chu\u1ea9n n\u00e0y v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 b\u1eb1ng c\u00e1c ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng kh\u00e1c cho c\u00e1c lo\u1ea1i m\u00e1y \u0111\u00f3.<\/p>\n

The Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng \u2014 M\u00e1y n\u00e9n piston<\/strong> C\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn mi\u1ec5n ph\u00ed t\u1eeb b\u1ed9 c\u00f4ng c\u1ee5 k\u1ef9 thu\u1eadt n\u00e0y tri\u1ec3n khai ph\u00e2n lo\u1ea1i v\u00f9ng theo ti\u00eau chu\u1ea9n ISO 20816-8 trong m\u1ed9t m\u00e1y t\u00ednh d\u1ef1a tr\u00ean tr\u00ecnh duy\u1ec7t. C\u00e1c k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 nh\u1eadp v\u1eadn t\u1ed1c rung \u0111\u1ed9ng \u0111o \u0111\u01b0\u1ee3c, ch\u1ecdn lo\u1ea1i m\u00e1y n\u00e9n v\u00e0 lo\u1ea1i n\u1ec1n m\u00f3ng, v\u00e0 ngay l\u1eadp t\u1ee9c nh\u1eadn \u0111\u01b0\u1ee3c v\u00f9ng rung \u0111\u1ed9ng \u00e1p d\u1ee5ng c\u00f9ng v\u1edbi c\u00e1c khuy\u1ebfn ngh\u1ecb v\u1eadn h\u00e0nh \u2014 kh\u00f4ng c\u1ea7n b\u1ea3ng t\u00ednh ho\u1eb7c tra c\u1ee9u b\u1ea3ng th\u1ee7 c\u00f4ng.<\/p>\n

C\u00e1c ranh gi\u1edbi v\u00f9ng rung \u0111\u1ed9ng theo ti\u00eau chu\u1ea9n ISO 20816-8 d\u00e0nh cho n\u1ec1n m\u00f3ng c\u1ee9ng l\u00e0 g\u00ec?<\/h2>\n

\u0110\u1ed1i v\u1edbi m\u00e1y n\u00e9n piston \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean n\u1ec1n m\u00f3ng b\u00ea t\u00f4ng ho\u1eb7c kh\u1ed1i th\u00e9p c\u1ee9ng ch\u1eafc, li\u00ean k\u1ebft tr\u1ef1c ti\u1ebfp v\u1edbi k\u1ebft c\u1ea5u t\u00f2a nh\u00e0, ti\u00eau chu\u1ea9n ISO 20816-8 quy \u0111\u1ecbnh ba ranh gi\u1edbi v\u00f9ng: A\/B \u1edf m\u1ee9c 7,1 mm\/s RMS, B\/C \u1edf m\u1ee9c 14,0 mm\/s RMS v\u00e0 C\/D \u1edf m\u1ee9c 28,0 mm\/s RMS. V\u00f9ng A bi\u1ec3u th\u1ecb m\u00e1y m\u1edbi \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh ho\u1eb7c trong t\u00ecnh tr\u1ea1ng t\u1ed1t, trong khi v\u00f9ng D bi\u1ec3u th\u1ecb \u0111\u1ed9 rung \u0111\u1ee7 m\u1ea1nh \u0111\u1ec3 g\u00e2y h\u01b0 h\u1ecfng.<\/p>\n\n\n\n\n\n\n\n
Gi\u1edbi h\u1ea1n v\u00f9ng<\/th>\nGi\u1edbi h\u1ea1n v\u1eadn t\u1ed1c (mm\/s RMS)<\/th>\nGi\u1ea3i th\u00edch ho\u1ea1t \u0111\u1ed9ng<\/th>\n<\/tr>\n<\/thead>\n
A\/B<\/td>\n7.1<\/td>\nChuy\u1ec3n \u0111\u1ed5i t\u1eeb tr\u1ea1ng th\u00e1i m\u1edbi \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng (xu\u1ea5t s\u1eafc) sang tr\u1ea1ng th\u00e1i ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ec3 v\u1eadn h\u00e0nh l\u00e2u d\u00e0i.<\/td>\n<\/tr>\n
B\/C<\/td>\n14.0<\/td>\nChuy\u1ec3n \u0111\u1ed5i t\u1eeb ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c sang ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng h\u1ea1n ch\u1ebf \u2014 khuy\u1ebfn ngh\u1ecb \u0111i\u1ec1u tra<\/td>\n<\/tr>\n
\u0110\u0128A CD<\/td>\n28.0<\/td>\nChuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i h\u1ea1n ch\u1ebf sang tr\u1ea1ng th\u00e1i nguy hi\u1ec3m \u2014 c\u00f3 nguy c\u01a1 h\u01b0 h\u1ecfng n\u1ebfu ho\u1ea1t \u0111\u1ed9ng ti\u1ebfp t\u1ee5c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

M\u00f3ng c\u1ee9ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t ph\u1ed5 bi\u1ebfn nh\u1ea5t cho c\u00e1c m\u00e1y n\u00e9n kh\u00ed c\u00f4ng nghi\u1ec7p c\u1ee1 l\u1edbn trong c\u00e1c nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u v\u00e0 h\u00f3a ch\u1ea5t. Kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a m\u00f3ng h\u1ea1n ch\u1ebf chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a khung, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ranh gi\u1edbi v\u00f9ng an to\u00e0n th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t linh ho\u1ea1t (c\u00f3 l\u00f2 xo c\u00e1ch ly). V\u00ed d\u1ee5, ch\u1ec9 s\u1ed1 RMS 12 mm\/s tr\u00ean m\u00e1y n\u00e9n kh\u00ed c\u00f4ng nghi\u1ec7p c\u00f3 m\u00f3ng c\u1ee9ng n\u1eb1m trong V\u00f9ng B \u2014 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c cho ho\u1ea1t \u0111\u1ed9ng l\u00e2u d\u00e0i kh\u00f4ng h\u1ea1n ch\u1ebf.<\/p>\n

ISO 20816-8 c\u00f3 bao qu\u00e1t n\u1ec1n m\u00f3ng m\u1ec1m (c\u00e1ch ly b\u1eb1ng l\u00f2 xo) kh\u00f4ng?<\/h2>\n

Kh\u00f4ng \u2014 ISO 20816-8 \u00e1p d\u1ee5ng cho m\u00e1y n\u00e9n piston l\u1eafp tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng v\u00e0 kh\u00f4ng \u0111\u1ecbnh ngh\u0129a b\u1ea3ng v\u00f9ng ri\u00eang cho c\u00e1c l\u1eafp \u0111\u1eb7t m\u1ec1m (c\u00e1ch ly b\u1eb1ng l\u00f2 xo). \u0110\u1ed1i v\u1edbi m\u00e1y c\u00e1ch ly b\u1eb1ng l\u00f2 xo, c\u00f4ng c\u1ee5 cung c\u1ea5p c\u00e1c ranh gi\u1edbi h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt t\u00f9y ch\u1ecdn \u2014 A\/B t\u1ea1i 9.0 mm\/s RMS, B\/C t\u1ea1i 18.0 mm\/s RMS v\u00e0 C\/D t\u1ea1i 36.0 mm\/s RMS \u2014 \u0111\u01b0\u1ee3c ngo\u1ea1i suy t\u1eeb c\u00e1c gi\u00e1 tr\u1ecb n\u1ec1n m\u00f3ng c\u1ee9ng \u0111\u1ec3 ph\u1ea3n \u00e1nh chuy\u1ec3n \u0111\u1ed9ng khung b\u1ed5 sung m\u00e0 c\u00e1ch ly l\u00f2 xo cho ph\u00e9p. C\u00e1c gi\u00e1 tr\u1ecb h\u01b0\u1edbng d\u1eabn n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a ISO 20816-8, v\u00e0 vi\u1ec7c \u0111\u00e1nh gi\u00e1 d\u1ef1a tr\u00ean ch\u00fang kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o nh\u01b0 m\u1ed9t ph\u00e2n lo\u1ea1i v\u00f9ng theo ISO 20816-8.<\/p>\n\n\n\n\n\n\n\n
Gi\u1edbi h\u1ea1n v\u00f9ng<\/th>\nN\u1ec1n m\u00f3ng c\u1ee9ng \u2014 ISO 20816-8 (mm\/s RMS)<\/th>\nN\u1ec1n m\u00f3ng m\u1ec1m \u2014 h\u01b0\u1edbng d\u1eabn ngo\u1ea1i suy, kh\u00f4ng n\u1eb1m trong ISO 20816-8 (mm\/s RMS)<\/th>\nH\u1ec7 s\u1ed1 t\u0103ng<\/th>\n<\/tr>\n<\/thead>\n
A\/B<\/td>\n7.1<\/td>\n9.0<\/td>\n\u00d71,27<\/td>\n<\/tr>\n
B\/C<\/td>\n14.0<\/td>\n18.0<\/td>\n\u00d71,29<\/td>\n<\/tr>\n
\u0110\u0128A CD<\/td>\n28.0<\/td>\n36.0<\/td>\n\u00d71,29<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

H\u1ec7 th\u1ed1ng gi\u1ea3m ch\u1ea5n b\u1eb1ng l\u00f2 xo th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u00e1y n\u00e9n kh\u00ed v\u00e0 m\u00e1y n\u00e9n l\u1ea1nh trong c\u00e1c t\u00f2a nh\u00e0 c\u1ea7n gi\u1ea3m thi\u1ec3u rung \u0111\u1ed9ng truy\u1ec1n \u0111\u1ebfn k\u1ebft c\u1ea5u. N\u1ec1n m\u00f3ng linh ho\u1ea1t cho ph\u00e9p khung m\u00e1y n\u00e9n di chuy\u1ec3n t\u1ef1 do h\u01a1n \u1edf t\u1ea7n s\u1ed1 th\u1ea5p, h\u1ea5p th\u1ee5 l\u1ef1c qu\u00e1n t\u00ednh thay v\u00ec truy\u1ec1n ch\u00fang. C\u00e1c k\u1ef9 s\u01b0 c\u1ea7n x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c lo\u1ea1i n\u1ec1n m\u00f3ng tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng n\u00e0y. Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng \u2014 M\u00e1y n\u00e9n piston<\/strong> c\u00f4ng c\u1ee5; vi\u1ec7c ch\u1ecdn sai lo\u1ea1i n\u1ec1n m\u00f3ng c\u00f3 th\u1ec3 l\u00e0m l\u1ec7ch ph\u00e2n lo\u1ea1i v\u00f9ng \u0111i tr\u1ecdn m\u1ed9t v\u00f9ng v\u00e0 d\u1eabn \u0111\u1ebfn quy\u1ebft \u0111\u1ecbnh b\u1ea3o tr\u00ec kh\u00f4ng ch\u00ednh x\u00e1c. H\u00e3y nh\u1edb r\u1eb1ng ch\u1ec9 \u0111\u00e1nh gi\u00e1 n\u1ec1n m\u00f3ng c\u1ee9ng m\u1edbi l\u00e0 ph\u00e2n lo\u1ea1i \u0111\u00fang theo ISO 20816-8 \u2014 t\u00f9y ch\u1ecdn n\u1ec1n m\u00f3ng m\u1ec1m \u00e1p d\u1ee5ng c\u00e1c gi\u00e1 tr\u1ecb h\u01b0\u1edbng d\u1eabn ngo\u1ea1i suy \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 \u1edf tr\u00ean, v\u1ed1n n\u1eb1m ngo\u00e0i ph\u1ea1m vi c\u1ee7a ti\u00eau chu\u1ea9n.<\/p>\n

Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng c\u1ee7a m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston so v\u1edbi gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng c\u1ee7a m\u00e1y quay nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n

M\u00e1y n\u00e9n piston c\u00f3 m\u1ee9c rung ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi m\u00e1y quay. Gi\u1edbi h\u1ea1n tr\u00ean c\u1ee7a V\u00f9ng A cho m\u00e1y n\u00e9n piston tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng l\u00e0 7.1 mm\/s RMS \u2014 x\u1ea5p x\u1ec9 g\u1ea5p n\u0103m l\u1ea7n ranh gi\u1edbi V\u00f9ng A\/B 1.4 mm\/s RMS c\u1ee7a m\u1ed9t m\u00e1y quay c\u1ee1 trung b\u00ecnh (ISO 20816-3, tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 ISO 10816-3, Nh\u00f3m 2 tr\u00ean g\u1ed1i \u0111\u1ee1 c\u1ee9ng). S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y t\u1ed3n t\u1ea1i v\u00ec c\u01a1 c\u1ea5u piston-thanh truy\u1ec1n v\u1ed1n t\u1ea1o ra m\u1ee9c rung cao h\u01a1n v\u00e0 \u0111i\u1ec1u \u0111\u00f3 \u0111\u01b0\u1ee3c coi l\u00e0 v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n\n\n\n\n\n\n
Tham s\u1ed1<\/th>\nM\u00e1y n\u00e9n ki\u1ec3u piston (ISO 20816-8, Lo\u1ea1i c\u1ee9ng)<\/th>\nM\u00e1y quay (ISO 20816-3, Nh\u00f3m 2, G\u1ed1i \u0111\u1ee1 c\u1ee9ng)<\/th>\nT\u1ef7 l\u1ec7<\/th>\n<\/tr>\n<\/thead>\n
Ranh gi\u1edbi v\u00f9ng A\/B<\/td>\n7,1 mm\/s RMS<\/td>\n1,4 mm\/s RMS<\/td>\n5,1\u00d7<\/td>\n<\/tr>\n
Ranh gi\u1edbi khu v\u1ef1c B\/C<\/td>\n14,0 mm\/s RMS<\/td>\n2,8 mm\/s RMS<\/td>\n5,0\u00d7<\/td>\n<\/tr>\n
Ranh gi\u1edbi khu v\u1ef1c C\/D<\/td>\n28,0 mm\/s RMS<\/td>\n4,5 mm\/s RMS<\/td>\n6,2\u00d7<\/td>\n<\/tr>\n
Ngu\u1ed3n rung \u0111\u1ed9ng ch\u00ednh<\/td>\nL\u1ef1c qu\u00e1n t\u00ednh c\u1ee7a p\u00edt-t\u00f4ng v\u00e0 tr\u1ee5c khu\u1ef7u, s\u1ef1 dao \u0111\u1ed9ng c\u1ee7a kh\u00ed.<\/td>\nM\u1ea5t c\u00e2n b\u1eb1ng r\u00f4to, l\u1ec7ch tr\u1ee5c<\/td>\n\u2014<\/td>\n<\/tr>\n
N\u1ed9i dung t\u1ea7n s\u1ed1 ch\u1ee7 \u0111\u1ea1o<\/td>\nT\u1ed1c \u0111\u1ed9 ch\u1ea1y b\u1eadc 1\u00d7, 2\u00d7 v\u00e0 c\u00e1c b\u1eadc cao h\u01a1n<\/td>\nCh\u1ee7 y\u1ebfu l\u00e0 1\u00d7 t\u1ed1c \u0111\u1ed9 ch\u1ea1y<\/td>\n\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

S\u1ef1 so s\u00e1nh n\u00e0y l\u00e0m n\u1ed5i b\u1eadt m\u1ed9t nguy\u00ean t\u1eafc k\u1ef9 thu\u1eadt quan tr\u1ecdng: gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i m\u00e1y. \u00c1p d\u1ee5ng gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng cho m\u00e1y n\u00e9n piston s\u1ebd khi\u1ebfn h\u1ea7u h\u1ebft c\u00e1c m\u00e1y \u0111\u1ec1u b\u1ecb b\u00e1o \u0111\u1ed9ng v\u1ec1 rung \u0111\u1ed9ng qu\u00e1 m\u1ee9c, d\u1eabn \u0111\u1ebfn vi\u1ec7c ng\u1eebng ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng c\u1ea7n thi\u1ebft v\u00e0 l\u00e3ng ph\u00ed ngu\u1ed3n l\u1ef1c b\u1ea3o tr\u00ec. Ng\u01b0\u1ee3c l\u1ea1i, \u00e1p d\u1ee5ng gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng cho m\u00e1y n\u00e9n ly t\u00e2m c\u00f3 th\u1ec3 khi\u1ebfn rung \u0111\u1ed9ng th\u1ef1c s\u1ef1 nguy hi\u1ec3m kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n. Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng \u2014 M\u00e1y n\u00e9n piston<\/strong> C\u00f4ng c\u1ee5 n\u00e0y \u0111\u1ea3m b\u1ea3o ti\u00eau chu\u1ea9n ch\u00ednh x\u00e1c \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng t\u1ef1 \u0111\u1ed9ng d\u1ef1a tr\u00ean l\u1ef1a ch\u1ecdn m\u00e1y c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n

B\u1ed1n v\u00f9ng rung \u0111\u1ed9ng (A, B, C, D) trong ti\u00eau chu\u1ea9n ISO 20816-8 c\u00f3 \u00fd ngh\u0129a g\u00ec?<\/h2>\n

Ti\u00eau chu\u1ea9n ISO 20816-8 ph\u00e2n lo\u1ea1i m\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng th\u00e0nh b\u1ed1n v\u00f9ng theo c\u00e1c m\u1ee9c \u0111\u1ed9 c\u1ea7n x\u1eed l\u00fd: V\u00f9ng A th\u1ec3 hi\u1ec7n t\u00ecnh tr\u1ea1ng tuy\u1ec7t v\u1eddi, \u0111i\u1ec3n h\u00ecnh c\u1ee7a c\u00e1c m\u00e1y m\u00f3c m\u1edbi \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh, V\u00f9ng B cho th\u1ea5y ho\u1ea1t \u0111\u1ed9ng l\u00e2u d\u00e0i \u1edf m\u1ee9c ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c, V\u00f9ng C c\u00f3 ngh\u0129a l\u00e0 \u0111\u1ed9 rung \u0111\u00e3 \u0111\u1ea1t \u0111\u1ebfn m\u1ee9c c\u1ea7n \u0111i\u1ec1u tra v\u00e0 h\u1ea1n ch\u1ebf v\u1eadn h\u00e0nh, v\u00e0 V\u00f9ng D b\u00e1o hi\u1ec7u nguy c\u01a1 h\u01b0 h\u1ecfng s\u1eafp x\u1ea3y ra, c\u1ea7n h\u00e0nh \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c.<\/p>\n

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  1. Khu A<\/strong> \u2014 M\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng \u0111i\u1ec3n h\u00ecnh c\u1ee7a m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston m\u1edbi \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh ho\u1eb7c v\u1eeba \u0111\u01b0\u1ee3c \u0111\u1ea1i tu. Kh\u00f4ng c\u1ea7n th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 h\u00e0nh \u0111\u1ed9ng n\u00e0o. \u0110\u00e2y l\u00e0 m\u1ee5c ti\u00eau c\u01a1 b\u1ea3n cho th\u1eed nghi\u1ec7m nghi\u1ec7m thu.<\/li>\n
  2. Khu B<\/strong> \u2014 M\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c cho ho\u1ea1t \u0111\u1ed9ng l\u00e2u d\u00e0i kh\u00f4ng h\u1ea1n ch\u1ebf. H\u1ea7u h\u1ebft c\u00e1c m\u00e1y n\u00e9n kh\u00ed trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh th\u00f4ng th\u01b0\u1eddng \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi n\u00e0y. Vi\u1ec7c gi\u00e1m s\u00e1t n\u00ean \u0111\u01b0\u1ee3c ti\u1ebfp t\u1ee5c theo \u0111\u1ecbnh k\u1ef3.<\/li>\n
  3. Khu C<\/strong> \u2014 M\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng kh\u00f4ng th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ed1i v\u1edbi ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c. M\u00e1y n\u00e9n c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t th\u1eddi gian gi\u1edbi h\u1ea1n trong khi l\u1eadp k\u1ebf ho\u1ea1ch kh\u1eafc ph\u1ee5c, nh\u01b0ng vi\u1ec7c \u0111i\u1ec1u tra nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 c\u1ea7n \u0111\u01b0\u1ee3c b\u1eaft \u0111\u1ea7u ngay l\u1eadp t\u1ee9c. C\u00e1c nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p bao g\u1ed3m c\u00e1c thanh d\u1eabn h\u01b0\u1edbng \u0111\u1ea7u n\u00e9n b\u1ecb m\u00f2n, c\u00e1c bu l\u00f4ng \u0111\u1ebf b\u1ecb l\u1ecfng ho\u1eb7c hi\u1ec7n t\u01b0\u1ee3ng c\u1ed9ng h\u01b0\u1edfng xung kh\u00ed.<\/li>\n
  4. Khu D<\/strong> \u2014 M\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng \u0111\u1ee7 m\u1ea1nh \u0111\u1ec3 g\u00e2y h\u01b0 h\u1ecfng nhanh ch\u00f3ng cho m\u00e1y n\u00e9n, \u0111\u01b0\u1eddng \u1ed1ng ho\u1eb7c n\u1ec1n m\u00f3ng. N\u00ean t\u1eaft m\u00e1y ngay l\u1eadp t\u1ee9c ho\u1eb7c gi\u1ea3m t\u1ea3i. Ti\u1ebfp t\u1ee5c v\u1eadn h\u00e0nh trong V\u00f9ng D c\u00f3 nguy c\u01a1 g\u00e2y h\u01b0 h\u1ecfng nghi\u00eam tr\u1ecdng c\u00e1c \u1ed5 tr\u1ee5c, tr\u1ee5c khu\u1ef7u ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn ch\u1ecbu \u00e1p su\u1ea5t.<\/li>\n<\/ol>\n

    H\u1ec7 th\u1ed1ng ph\u00e2n v\u00f9ng cung c\u1ea5p m\u1ed9t khu\u00f4n kh\u1ed5 giao ti\u1ebfp chung gi\u1eefa c\u00e1c nh\u00f3m v\u1eadn h\u00e0nh, b\u1ea3o tr\u00ec v\u00e0 k\u1ef9 thu\u1eadt \u0111\u1ed9 tin c\u1eady. Thay v\u00ec tranh lu\u1eadn xem m\u1ed9t ch\u1ec9 s\u1ed1 rung c\u1ee5 th\u1ec3 l\u00e0 "cao" hay "th\u1ea5p", c\u00e1c nh\u00f3m c\u00f3 th\u1ec3 tham kh\u1ea3o ph\u00e2n lo\u1ea1i v\u00f9ng theo ti\u00eau chu\u1ea9n ISO 20816-8 \u0111\u1ec3 \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh nh\u1ea5t qu\u00e1n tr\u00ean c\u00e1c lo\u1ea1i m\u00e1y n\u00e9n v\u00e0 h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t kh\u00e1c nhau.<\/p>\n

    Ti\u00eau chu\u1ea9n ISO 20816-8 bao g\u1ed3m nh\u1eefng lo\u1ea1i m\u00e1y n\u00e9n n\u00e0o?<\/h2>\n

    ISO 20816-8 bao qu\u00e1t t\u1ea5t c\u1ea3 c\u00e1c nh\u00f3m m\u00e1y n\u00e9n piston ch\u00ednh: m\u00e1y n\u00e9n kh\u00ed c\u00f4ng ngh\u1ec7 d\u00f9ng trong nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u v\u00e0 nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t, m\u00e1y n\u00e9n kh\u00ed c\u00f4ng nghi\u1ec7p cho h\u1ec7 th\u1ed1ng ti\u1ec7n \u00edch nh\u00e0 m\u00e1y, v\u00e0 m\u00e1y n\u00e9n l\u1ea1nh d\u00f9ng trong HVAC v\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t c\u00f4ng nghi\u1ec7p. C\u00f9ng m\u1ed9t c\u1ea5u tr\u00fac ranh gi\u1edbi v\u00f9ng c\u1ee7a ISO 20816-8 \u00e1p d\u1ee5ng cho c\u1ea3 ba lo\u1ea1i khi ch\u00fang \u0111\u01b0\u1ee3c l\u1eafp tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng; \u0111\u1ed1i v\u1edbi l\u1eafp \u0111\u1eb7t c\u00e1ch ly b\u1eb1ng l\u00f2 xo, c\u00f4ng c\u1ee5 \u00e1p d\u1ee5ng c\u00e1c gi\u00e1 tr\u1ecb h\u01b0\u1edbng d\u1eabn kh\u00f4ng thu\u1ed9c ISO \u0111\u00e3 \u0111\u01b0\u1ee3c ngo\u1ea1i suy nh\u01b0 m\u00f4 t\u1ea3 \u1edf tr\u00ean.<\/p>\n

      \n
    • M\u00e1y n\u00e9n kh\u00ed c\u00f4ng nghi\u1ec7p<\/strong> \u2014 Th\u00f4ng th\u01b0\u1eddng l\u00e0 c\u00e1c m\u00e1y l\u1edbn, nhi\u1ec1u t\u1ea7ng, t\u1ed1c \u0111\u1ed9 ch\u1eadm (300\u2013600 v\u00f2ng\/ph\u00fat) d\u00f9ng \u0111\u1ec3 x\u1eed l\u00fd hydro, kh\u00ed t\u1ef1 nhi\u00ean, etylen v\u00e0 c\u00e1c lo\u1ea1i kh\u00ed c\u00f4ng nghi\u1ec7p kh\u00e1c. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean n\u1ec1n m\u00f3ng b\u00ea t\u00f4ng c\u1ed1t th\u00e9p ch\u1eafc ch\u1eafn. C\u00e1c m\u00e1y n\u00e0y thu\u1ed9c \u1ee9ng d\u1ee5ng c\u00f3 r\u1ee7i ro cao nh\u1ea5t do ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng d\u1ec5 ch\u00e1y ho\u1eb7c \u0111\u1ed9c h\u1ea1i.<\/li>\n
    • M\u00e1y n\u00e9n kh\u00ed<\/strong> \u2014 M\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston c\u1ee1 trung b\u00ecnh \u0111\u1ebfn l\u1edbn (th\u01b0\u1eddng c\u00f3 t\u1ed1c \u0111\u1ed9 500\u20131800 v\u00f2ng\/ph\u00fat) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 cung c\u1ea5p kh\u00ed n\u00e9n cho nh\u00e0 m\u00e1y. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng ho\u1eb7c m\u1ec1m t\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t. C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 rung \u0111\u1ed9ng c\u1ee7a m\u00e1y n\u00e9n kh\u00ed th\u01b0\u1eddng b\u1eaft ngu\u1ed3n t\u1eeb s\u1ef1 xu\u1ed1ng c\u1ea5p c\u1ee7a van ho\u1eb7c tr\u1ee5c tr\u1eb7c c\u1ee7a b\u1ed9 ph\u1eadn x\u1ea3 t\u1ea3i.<\/li>\n
    • M\u00e1y n\u00e9n l\u1ea1nh<\/strong> \u2014 M\u00e1y n\u00e9n ki\u1ec3u piston h\u1edf ho\u1eb7c b\u00e1n k\u00edn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh b\u1eb1ng amoniac, m\u00e1y l\u00e0m l\u1ea1nh c\u00f4ng nghi\u1ec7p v\u00e0 c\u00e1c c\u01a1 s\u1edf kho l\u1ea1nh. Ch\u00fang c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 cao h\u01a1n (900\u20131750 v\u00f2ng\/ph\u00fat) v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1ch ly b\u1eb1ng l\u00f2 xo \u0111\u1ec3 gi\u1ea3m thi\u1ec3u ti\u1ebfng \u1ed3n v\u00e0 s\u1ef1 truy\u1ec1n rung \u0111\u1ed9ng \u0111\u1ebfn c\u00e1c kh\u00f4ng gian b\u00ean trong.<\/li>\n<\/ul>\n

      The Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng \u2014 M\u00e1y n\u00e9n piston<\/strong> c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 c\u1ea3 ba lo\u1ea1i m\u00e1y n\u00e9n v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1eb7t nhanh ph\u00f9 h\u1ee3p. V\u00ed d\u1ee5, c\u00f4ng c\u1ee5 bao g\u1ed3m c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1eb7t s\u1eb5n 12 mm\/s cho m\u1ed9t m\u00e1y n\u00e9n c\u00f4ng ngh\u1ec7 tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng (V\u00f9ng B), 20 mm\/s cho m\u00e1y n\u00e9n kh\u00ed (V\u00f9ng C tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng; c\u0169ng l\u00e0 V\u00f9ng C theo c\u00e1c gi\u00e1 tr\u1ecb h\u01b0\u1edbng d\u1eabn n\u1ec1n m\u00f3ng m\u1ec1m), v\u00e0 8 mm\/s cho m\u00e1y n\u00e9n l\u1ea1nh (V\u00f9ng B tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng; V\u00f9ng A theo c\u00e1c gi\u00e1 tr\u1ecb h\u01b0\u1edbng d\u1eabn n\u1ec1n m\u00f3ng m\u1ec1m).<\/p>\n

      T\u1ea1i sao rung \u0111\u1ed9ng \u0111\u01b0\u1eddng \u1ed1ng do xung \u0111\u1ed9ng g\u00e2y ra kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp trong ti\u00eau chu\u1ea9n ISO 20816-8?<\/h2>\n

      Ti\u00eau chu\u1ea9n ISO 20816-8 ch\u1ec9 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn rung \u0111\u1ed9ng c\u1ee7a khung v\u00e0 v\u1ecf \u1ed5 tr\u1ee5c tr\u00ean ch\u00ednh m\u00e1y n\u00e9n. Rung \u0111\u1ed9ng \u0111\u01b0\u1eddng \u1ed1ng do xung \u0111\u1ed9ng g\u00e2y ra \u2014 th\u01b0\u1eddng l\u00e0 m\u1ed1i quan ng\u1ea1i rung \u0111\u1ed9ng nghi\u00eam tr\u1ecdng nh\u1ea5t \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y n\u00e9n piston \u2014 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 ri\u00eang b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 H\u01b0\u1edbng d\u1eabn c\u1ee7a Vi\u1ec7n N\u0103ng l\u01b0\u1ee3ng v\u1ec1 vi\u1ec7c tr\u00e1nh h\u01b0 h\u1ecfng do m\u1ecfi rung \u0111\u1ed9ng trong \u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng nghi\u1ec7p ho\u1eb7c c\u00e1c y\u00eau c\u1ea7u nghi\u00ean c\u1ee9u xung \u0111\u1ed9ng c\u1ee7a API 618.<\/p>\n

      M\u00e1y n\u00e9n piston t\u1ea1o ra c\u00e1c xung \u00e1p su\u1ea5t kh\u00ed v\u1edbi t\u1ea7n s\u1ed1 b\u1ed9i s\u1ed1 c\u1ee7a t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh v\u00e0 s\u1ed1 xi lanh. Nh\u1eefng xung \u00e1p su\u1ea5t n\u00e0y lan truy\u1ec1n qua h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u00e0 c\u00f3 th\u1ec3 k\u00edch th\u00edch c\u00e1c t\u1ea7n s\u1ed1 dao \u0111\u1ed9ng t\u1ef1 nhi\u00ean c\u1ee7a c\u00e1c \u0111o\u1ea1n \u1ed1ng, c\u00e1c m\u1ed1i n\u1ed1i \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf v\u00e0 \u1ed1ng d\u1eabn thi\u1ebft b\u1ecb. Theo m\u1ed9t kh\u1ea3o s\u00e1t n\u0103m 2019 c\u1ee7a Vi\u1ec7n N\u0103ng l\u01b0\u1ee3ng, s\u1ef1 m\u1ecfi do rung \u0111\u1ed9ng \u0111\u01b0\u1eddng \u1ed1ng chi\u1ebfm kho\u1ea3ng 201 t\u1ea5n\/t\u1ea5n trong t\u1ed5ng s\u1ed1 s\u1ef1 c\u1ed1 r\u00f2 r\u1ec9 hydrocarbon trong ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u1ea7u kh\u00ed th\u01b0\u1ee3ng ngu\u1ed3n, tr\u1edf th\u00e0nh nguy\u00ean nh\u00e2n h\u00e0ng \u0111\u1ea7u g\u00e2y ra c\u00e1c s\u1ef1 c\u1ed1 m\u1ea5t ki\u1ec3m so\u00e1t.<\/p>\n

      S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y r\u1ea5t quan tr\u1ecdng: m\u1ed9t m\u00e1y n\u00e9n c\u00f3 th\u1ec3 c\u00f3 \u0111\u1ed9 rung khung ho\u00e0n to\u00e0n ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c (V\u00f9ng A ho\u1eb7c B theo ti\u00eau chu\u1ea9n ISO 20816-8) trong khi \u0111\u1ed3ng th\u1eddi c\u00f3 \u0111\u1ed9 rung \u0111\u01b0\u1eddng \u1ed1ng \u0111\u1ee7 nghi\u00eam tr\u1ecdng \u0111\u1ec3 g\u00e2y ra h\u1ecfng h\u00f3c do m\u1ecfi trong v\u00f2ng v\u00e0i tu\u1ea7n. C\u00e1c k\u1ef9 s\u01b0 th\u1ef1c hi\u1ec7n \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 rung tr\u00ean c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y n\u00e9n piston lu\u00f4n ph\u1ea3i \u0111\u00e1nh gi\u00e1 c\u1ea3 \u0111\u1ed9 rung khung m\u00e1y n\u00e9n theo ti\u00eau chu\u1ea9n ISO 20816-8 v\u00e0 \u0111\u1ed9 rung \u0111\u01b0\u1eddng \u1ed1ng li\u00ean quan theo c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ed9 rung \u0111\u01b0\u1eddng \u1ed1ng hi\u1ec7n h\u00e0nh.<\/p>\n

      L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 \u0111\u00e1nh gi\u00e1 rung \u0111\u1ed9ng tr\u1ef1c tuy\u1ebfn mi\u1ec5n ph\u00ed theo ti\u00eau chu\u1ea9n ISO 20816-8?<\/h2>\n

      The Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng \u2014 M\u00e1y n\u00e9n piston<\/strong> c\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn mi\u1ec5n ph\u00ed n\u00e0y y\u00eau c\u1ea7u ba \u0111\u1ea7u v\u00e0o: lo\u1ea1i m\u00e1y n\u00e9n (kh\u00ed c\u00f4ng ngh\u1ec7, kh\u00ed n\u00e9n ho\u1eb7c l\u1ea1nh), lo\u1ea1i n\u1ec1n m\u00f3ng (c\u1ee9ng ho\u1eb7c m\u1ec1m) v\u00e0 v\u1eadn t\u1ed1c rung \u0111o \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng mm\/s RMS. C\u00f4ng c\u1ee5 ngay l\u1eadp t\u1ee9c tr\u1ea3 v\u1ec1 v\u00f9ng rung \u00e1p d\u1ee5ng, c\u00e1c gi\u00e1 tr\u1ecb ranh gi\u1edbi v\u00f9ng v\u00e0 khuy\u1ebfn ngh\u1ecb v\u1eadn h\u00e0nh \u2014 d\u1ef1a tr\u00ean ti\u00eau ch\u00ed ISO 20816-8 cho n\u1ec1n m\u00f3ng c\u1ee9ng, ho\u1eb7c tr\u00ean c\u00e1c gi\u00e1 tr\u1ecb h\u01b0\u1edbng d\u1eabn ngo\u1ea1i suy c\u1ee7a c\u00f4ng c\u1ee5 cho n\u1ec1n m\u00f3ng m\u1ec1m.<\/p>\n

        \n
      1. Ch\u1ecdn lo\u1ea1i m\u00e1y n\u00e9n<\/strong> \u2014 H\u00e3y ch\u1ecdn gi\u1eefa M\u00e1y n\u00e9n kh\u00ed c\u00f4ng nghi\u1ec7p, M\u00e1y n\u00e9n kh\u00ed ho\u1eb7c M\u00e1y n\u00e9n l\u1ea1nh. M\u1eb7c d\u00f9 ranh gi\u1edbi v\u00f9ng hi\u1ec7n t\u1ea1i gi\u1ed1ng nhau cho c\u1ea3 ba lo\u1ea1i, nh\u01b0ng l\u1ef1a ch\u1ecdn n\u00e0y gi\u00fap t\u1ea1o b\u1ed1i c\u1ea3nh ph\u00f9 h\u1ee3p cho v\u0103n b\u1ea3n khuy\u1ebfn ngh\u1ecb v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c b\u1ea3n s\u1eeda \u0111\u1ed5i ti\u00eau chu\u1ea9n trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t theo lo\u1ea1i m\u00e1y n\u00e9n.<\/li>\n
      2. Ch\u1ecdn lo\u1ea1i m\u00f3ng<\/strong> \u2014 Ch\u1ecdn N\u1ec1n m\u00f3ng c\u1ee9ng ho\u1eb7c M\u1ec1m (c\u00e1ch ly b\u1eb1ng l\u00f2 xo). L\u1ef1a ch\u1ecdn n\u00e0y quy\u1ebft \u0111\u1ecbnh b\u1ed9 ranh gi\u1edbi v\u00f9ng n\u00e0o \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng; l\u01b0u \u00fd r\u1eb1ng ch\u1ec9 c\u00e1c ranh gi\u1edbi n\u1ec1n m\u00f3ng c\u1ee9ng m\u1edbi \u0111\u1ebfn t\u1eeb ISO 20816-8, trong khi t\u00f9y ch\u1ecdn m\u1ec1m s\u1eed d\u1ee5ng c\u00e1c gi\u00e1 tr\u1ecb h\u01b0\u1edbng d\u1eabn kh\u00f4ng thu\u1ed9c ISO \u0111\u00e3 \u0111\u01b0\u1ee3c ngo\u1ea1i suy c\u1ee7a c\u00f4ng c\u1ee5. N\u1ebfu kh\u00f4ng ch\u1eafc ch\u1eafn, h\u00e3y ki\u1ec3m tra c\u00e1ch l\u1eafp \u0111\u1eb7t m\u00e1y n\u00e9n: n\u1ec1n m\u00f3ng c\u1ee9ng c\u00f3 khung \u0111\u01b0\u1ee3c b\u1eaft bu l\u00f4ng tr\u1ef1c ti\u1ebfp v\u00e0o b\u00ea t\u00f4ng ho\u1eb7c th\u00e9p; n\u1ec1n m\u00f3ng m\u1ec1m c\u00f3 c\u00e1c ph\u1ea7n t\u1eed c\u00e1ch ly l\u00f2 xo ho\u1eb7c cao su nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c gi\u1eefa khung v\u00e0 k\u1ebft c\u1ea5u \u0111\u1ee1.<\/li>\n
      3. Nh\u1eadp v\u1eadn t\u1ed1c \u0111o \u0111\u01b0\u1ee3c<\/strong> \u2014 Nh\u1eadp v\u1eadn t\u1ed1c rung t\u1ed5ng th\u1ec3 t\u00ednh b\u1eb1ng mm\/s RMS \u0111o \u0111\u01b0\u1ee3c tr\u00ean khung m\u00e1y n\u00e9n ho\u1eb7c v\u1ecf \u1ed5 tr\u1ee5c. C\u00e1c ph\u00e9p \u0111o n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo h\u01b0\u1edbng rung \u0111\u1ed9ng m\u1ea1nh nh\u1ea5t, th\u00f4ng th\u01b0\u1eddng l\u00e0 theo ph\u01b0\u01a1ng ngang vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c khu\u1ef7u.<\/li>\n
      4. K\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1<\/strong> \u2014 C\u00f4ng c\u1ee5 n\u00e0y hi\u1ec3n th\u1ecb ch\u1ec9 b\u00e1o v\u00f9ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a m\u00e0u (A = xanh l\u00e1 c\u00e2y, B = v\u00e0ng, C = cam, D = \u0111\u1ecf), gi\u00e1 tr\u1ecb \u0111o \u0111\u01b0\u1ee3c so v\u1edbi ranh gi\u1edbi v\u00f9ng v\u00e0 khuy\u1ebfn ngh\u1ecb v\u1eadn h\u00e0nh c\u1ee5 th\u1ec3.<\/li>\n<\/ol>\n

        C\u00e1c thi\u1ebft l\u1eadp nhanh c\u00f3 s\u1eb5n cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p ph\u1ed5 bi\u1ebfn: m\u00e1y n\u00e9n kh\u00ed quy tr\u00ecnh tr\u00ean n\u1ec1n c\u1ee9ng \u1edf t\u1ed1c \u0111\u1ed9 12 mm\/s, m\u00e1y n\u00e9n kh\u00ed \u1edf t\u1ed1c \u0111\u1ed9 20 mm\/s v\u00e0 m\u00e1y n\u00e9n l\u1ea1nh \u1edf t\u1ed1c \u0111\u1ed9 8 mm\/s. C\u00e1c thi\u1ebft l\u1eadp n\u00e0y cho ph\u00e9p c\u00e1c k\u1ef9 s\u01b0 nhanh ch\u00f3ng kh\u00e1m ph\u00e1 ch\u1ee9c n\u0103ng c\u1ee7a c\u00f4ng c\u1ee5 v\u00e0 hi\u1ec3u c\u00e1ch ph\u00e2n lo\u1ea1i v\u00f9ng ho\u1ea1t \u0111\u1ed9ng tr\u01b0\u1edbc khi nh\u1eadp d\u1eef li\u1ec7u \u0111o c\u1ee7a ri\u00eang h\u1ecd.<\/p>\n

        Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u01b0\u1eddng n\u00e0o \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho vi\u1ec7c \u0111\u00e1nh gi\u00e1 theo ti\u00eau chu\u1ea9n ISO 20816-8?<\/h2>\n

        C\u00e1c \u0111\u00e1nh gi\u00e1 theo ISO 20816-8 y\u00eau c\u1ea7u ph\u00e9p \u0111o v\u1eadn t\u1ed1c rung t\u00ednh b\u1eb1ng mm\/s RMS th\u1ef1c hi\u1ec7n tr\u00ean khung m\u00e1y n\u00e9n ho\u1eb7c v\u1ecf \u1ed5 tr\u1ee5c ch\u00ednh. C\u00e1c ph\u00e9p \u0111o n\u00ean \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u1edf tr\u1ea1ng th\u00e1i v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh theo c\u1ea3 ba tr\u1ee5c (ngang, \u0111\u1ee9ng, d\u1ecdc tr\u1ee5c), v\u1edbi gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ph\u00e2n lo\u1ea1i v\u00f9ng. Khuy\u1ebfn ngh\u1ecb c\u00e1c ph\u00e9p \u0111o b\u0103ng r\u1ed9ng bao ph\u1ee7 \u00edt nh\u1ea5t 2\u20131000 Hz.<\/p>\n

          \n
        • Th\u00f4ng s\u1ed1 \u0111o:<\/strong> V\u1eadn t\u1ed1c, mm\/s RMS (c\u0103n b\u1eadc hai trung b\u00ecnh b\u00ecnh ph\u01b0\u01a1ng). Kh\u00f4ng s\u1eed d\u1ee5ng gi\u00e1 tr\u1ecb \u0111\u1ec9nh ho\u1eb7c gi\u00e1 tr\u1ecb \u0111\u1ec9nh-\u0111\u1ec9nh \u2014 nh\u1eefng gi\u00e1 tr\u1ecb n\u00e0y s\u1ebd \u0111\u00e1nh gi\u00e1 qu\u00e1 cao m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng t\u1eeb 40\u2013100% t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a d\u1ea1ng s\u00f3ng.<\/li>\n
        • V\u1ecb tr\u00ed \u0111o:<\/strong> C\u00e1c v\u1ecb tr\u00ed \u0111o bao g\u1ed3m v\u1ecf \u1ed5 tr\u1ee5c ch\u00ednh, v\u1ecf d\u1eabn h\u01b0\u1edbng thanh truy\u1ec1n v\u00e0 c\u00e1c b\u1ec1 m\u1eb7t khung g\u1ea7n t\u00e2m tr\u1ee5c khu\u1ef7u. Tr\u00e1nh \u0111o tr\u00ean c\u00e1c n\u1eafp m\u1ecfng, n\u1eafp van ho\u1eb7c \u0111\u01b0\u1eddng \u1ed1ng \u2014 nh\u1eefng v\u1ecb tr\u00ed n\u00e0y th\u1ec3 hi\u1ec7n s\u1ef1 khu\u1ebfch \u0111\u1ea1i c\u1ed9ng h\u01b0\u1edfng c\u1ee5c b\u1ed9 kh\u00f4ng ph\u1ea3n \u00e1nh s\u1ef1 rung \u0111\u1ed9ng c\u1ee7a khung xe.<\/li>\n
        • D\u1ea3i t\u1ea7n s\u1ed1:<\/strong> \u0110o l\u01b0\u1eddng b\u0103ng th\u00f4ng r\u1ed9ng bao ph\u1ee7 \u00edt nh\u1ea5t t\u1eeb 2 Hz \u0111\u1ebfn 1000 Hz. M\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston t\u1ea1o ra n\u0103ng l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3 \u1edf t\u1ea7n s\u1ed1 th\u1ea5p (1\u00d7 v\u00e0 2\u00d7 t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh), v\u00ec v\u1eady c\u00e1c thi\u1ebft b\u1ecb c\u00f3 \u0111\u00e1p \u1ee9ng t\u1ea7n s\u1ed1 th\u1ea5p t\u1ed1t l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft. C\u00e1c gia t\u1ed1c k\u1ebf ti\u00eau chu\u1ea9n v\u1edbi b\u1ed9 l\u1ecdc th\u00f4ng cao \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean 10 Hz c\u00f3 th\u1ec3 b\u1ecf s\u00f3t c\u00e1c n\u1ed9i dung t\u1ea7n s\u1ed1 th\u1ea5p quan tr\u1ecdng.<\/li>\n
        • \u0110i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng:<\/strong> C\u00e1c ph\u00e9p \u0111o n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf t\u1ea3i v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng, \u1ed5n \u0111\u1ecbnh. \u0110\u1ed9 rung trong qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng, t\u1eaft m\u00e1y ho\u1eb7c v\u1eadn h\u00e0nh kh\u00f4ng t\u1ea3i kh\u00f4ng mang t\u00ednh \u0111\u1ea1i di\u1ec7n v\u00e0 kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n lo\u1ea1i v\u00f9ng.<\/li>\n
        • S\u1ed1 l\u1ea7n \u0111\u1ecdc:<\/strong> Th\u1ef1c hi\u1ec7n \u00edt nh\u1ea5t ba ph\u00e9p \u0111o li\u00ean ti\u1ebfp t\u1ea1i m\u1ed7i \u0111i\u1ec3m \u0111\u1ec3 ki\u1ec3m tra t\u00ednh l\u1eb7p l\u1ea1i. \u0110\u1ed9 rung c\u1ee7a m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o t\u1ea3i tr\u1ecdng kh\u00ed, t\u00ecnh tr\u1ea1ng van v\u00e0 tr\u1ea1ng th\u00e1i nhi\u1ec7t.<\/li>\n<\/ul>\n

          Ti\u00eau chu\u1ea9n ISO 20816-8 ph\u00f9 h\u1ee3p nh\u01b0 th\u1ebf n\u00e0o trong b\u1ed9 ti\u00eau chu\u1ea9n ISO 20816?<\/h2>\n

          ISO 20816-8 l\u00e0 m\u1ed9t trong s\u1ed1 c\u00e1c ph\u1ea7n chuy\u00ean bi\u1ec7t cho t\u1eebng lo\u1ea1i m\u00e1y m\u00f3c n\u1eb1m trong b\u1ed9 ti\u00eau chu\u1ea9n \u0111\u00e1nh gi\u00e1 rung \u0111\u1ed9ng ISO 20816. M\u1ed7i ph\u1ea7n \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t lo\u1ea1i m\u00e1y m\u00f3c kh\u00e1c nhau v\u1edbi c\u00e1c ranh gi\u1edbi v\u00f9ng \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n theo \u0111\u1eb7c t\u00ednh rung \u0111\u1ed9ng c\u1ee7a lo\u1ea1i thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3 \u0111\u00f3. B\u1ed9 ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00e3 thay th\u1ebf v\u00e0 h\u1ee3p nh\u1ea5t c\u00e1c b\u1ed9 ti\u00eau chu\u1ea9n c\u0169 h\u01a1n l\u00e0 ISO 10816 v\u00e0 ISO 7919.<\/p>\n\n\n\n\n\n\n\n\n\n\n
          B\u1ed9 ph\u1eadn ti\u00eau chu\u1ea9n<\/th>\nLo\u1ea1i m\u00e1y<\/th>\n\u0110i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh so v\u1edbi ISO 20816-8<\/th>\n<\/tr>\n<\/thead>\n
          Ti\u00eau chu\u1ea9n ISO 20816-1<\/td>\nH\u01b0\u1edbng d\u1eabn chung<\/td>\nTi\u00eau chu\u1ea9n khung; kh\u00f4ng cung c\u1ea5p ranh gi\u1edbi khu v\u1ef1c c\u1ee5 th\u1ec3.<\/td>\n<\/tr>\n
          ISO 20816-3<\/td>\nM\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p (b\u01a1m, \u0111\u1ed9ng c\u01a1, qu\u1ea1t, m\u00e1y n\u00e9n kh\u00ed > 15 kW)<\/td>\nCh\u1ec9 d\u00e0nh cho m\u00e1y quay; gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3.<\/td>\n<\/tr>\n
          ISO 20816-5<\/td>\nTuabin th\u1ee7y l\u1ef1c v\u00e0 tuabin b\u01a1m<\/td>\nBao g\u1ed3m c\u1ea3 rung \u0111\u1ed9ng tr\u1ee5c v\u00e0 rung \u0111\u1ed9ng k\u1ebft c\u1ea5u c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n th\u1ee7y l\u1ef1c.<\/td>\n<\/tr>\n
          ISO 20816-8<\/td>\nM\u00e1y n\u00e9n pitt\u00f4ng<\/td>\nC\u00e1c ranh gi\u1edbi v\u00f9ng cao nh\u1ea5t ph\u1ea3n \u00e1nh l\u1ef1c c\u1ee7a c\u01a1 ch\u1ebf chuy\u1ec3n \u0111\u1ed9ng t\u1ecbnh ti\u1ebfn.<\/td>\n<\/tr>\n
          ISO 20816-9<\/td>\nB\u1ed9 truy\u1ec1n \u0111\u1ed9ng<\/td>\nT\u00ednh \u0111\u1ebfn t\u1ea7n s\u1ed1 \u0103n kh\u1edbp b\u00e1nh r\u0103ng v\u00e0 l\u1ef1c \u0103n kh\u1edbp r\u0103ng.<\/td>\n<\/tr>\n
          ISO 20816-21<\/td>\nTua bin gi\u00f3<\/td>\nGi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 rung \u0111\u1ed9ng c\u1ee7a v\u1ecf \u0111\u1ed9ng c\u01a1 v\u00e0 th\u00e1p d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a t\u1ea3i tr\u1ecdng gi\u00f3 thay \u0111\u1ed5i.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Hi\u1ec3u r\u00f5 v\u1ecb tr\u00ed c\u1ee7a ti\u00eau chu\u1ea9n ISO 20816-8 trong nh\u00f3m c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y gi\u00fap c\u00e1c k\u1ef9 s\u01b0 tr\u00e1nh \u0111\u01b0\u1ee3c m\u1ed9t l\u1ed7i th\u01b0\u1eddng g\u1eb7p: s\u1eed d\u1ee5ng sai ph\u1ea7n c\u1ee7a ti\u00eau chu\u1ea9n cho m\u00e1y m\u00f3c c\u1ee5 th\u1ec3 c\u1ee7a h\u1ecd. V\u00ed d\u1ee5, m\u1ed9t k\u1ef9 s\u01b0 \u0111\u1ed9 tin c\u1eady l\u00e0m vi\u1ec7c trong nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u c\u00f3 th\u1ec3 c\u1ea7n ISO 20816-3 cho b\u01a1m v\u00e0 \u0111\u1ed9ng c\u01a1 ly t\u00e2m, ISO 20816-8 cho m\u00e1y n\u00e9n piston v\u00e0 ISO 20816-9 cho h\u1ed9p s\u1ed1 \u2014 t\u1ea5t c\u1ea3 \u0111\u1ec1u trong c\u00f9ng m\u1ed9t nh\u00e0 m\u00e1y.<\/p>\n

          Nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

          M\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng n\u00e0o \u0111\u01b0\u1ee3c coi l\u00e0 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ed1i v\u1edbi m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston?<\/h3>\n

          \u0110\u1ed1i v\u1edbi m\u00e1y n\u00e9n piston tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng, v\u1eadn t\u1ed1c rung \u0111\u1ebfn 7.1 mm\/s RMS \u0111\u01b0\u1ee3c xem l\u00e0 r\u1ea5t t\u1ed1t (V\u00f9ng A), v\u00e0 \u0111\u1ebfn 14.0 mm\/s RMS l\u00e0 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c cho v\u1eadn h\u00e0nh d\u00e0i h\u1ea1n kh\u00f4ng h\u1ea1n ch\u1ebf (V\u00f9ng B) theo ISO 20816-8. \u0110\u1ed1i v\u1edbi n\u1ec1n m\u00f3ng m\u1ec1m (c\u00e1ch ly b\u1eb1ng l\u00f2 xo), ISO 20816-8 kh\u00f4ng \u0111\u1ecbnh ngh\u0129a gi\u1edbi h\u1ea1n; h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt ngo\u1ea1i suy c\u1ee7a c\u00f4ng c\u1ee5 l\u1ea7n l\u01b0\u1ee3t d\u00f9ng 9.0 v\u00e0 18.0 mm\/s RMS.<\/p>\n

          T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng gi\u1edbi h\u1ea1n ISO 20816-3 cho m\u00e1y n\u00e9n ki\u1ec3u piston kh\u00f4ng?<\/h3>\n

          Kh\u00f4ng. ISO 20816-3 ch\u1ec9 \u00e1p d\u1ee5ng cho m\u00e1y quay. M\u00e1y n\u00e9n piston t\u1ea1o ra m\u1ee9c rung v\u1ed1n d\u0129 cao h\u01a1n do c\u01a1 c\u1ea5u tr\u1ee5c khu\u1ef7u-piston, v\u00e0 c\u00e1c m\u1ee9c ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c c\u1ee7a ch\u00fang cao g\u1ea5p nhi\u1ec1u l\u1ea7n so v\u1edbi gi\u1edbi h\u1ea1n \u0111i\u1ec3n h\u00ecnh c\u1ee7a m\u00e1y quay. Lu\u00f4n d\u00f9ng ISO 20816-8 cho m\u00e1y n\u00e9n piston \u0111\u1ec3 tr\u00e1nh b\u00e1o \u0111\u1ed9ng gi\u1ea3 v\u00e0 d\u1eebng m\u00e1y kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n

          ISO 20816-8 c\u00f3 \u0111\u1ecbnh ngh\u0129a gi\u1edbi h\u1ea1n cho n\u1ec1n m\u00f3ng m\u1ec1m (c\u00e1ch ly b\u1eb1ng l\u00f2 xo) kh\u00f4ng?<\/h3>\n

          Kh\u00f4ng. ISO 20816-8 \u00e1p d\u1ee5ng cho m\u00e1y n\u00e9n piston tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng v\u00e0 ch\u1ec9 \u0111\u1ecbnh ranh gi\u1edbi v\u00f9ng cho c\u00e1c l\u1eafp \u0111\u1eb7t c\u1ee9ng. C\u00e1c gi\u00e1 tr\u1ecb n\u1ec1n m\u00f3ng m\u1ec1m do c\u00f4ng c\u1ee5 cung c\u1ea5p (v\u00ed d\u1ee5 9.0 mm\/s t\u1ea1i ranh gi\u1edbi A\/B so v\u1edbi 7.1 mm\/s c\u1ee7a n\u1ec1n m\u00f3ng c\u1ee9ng) l\u00e0 h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt ngo\u1ea1i suy \u2014 cao h\u01a1n kho\u1ea3ng 27\u201329% so v\u1edbi c\u00e1c ranh gi\u1edbi c\u1ee9ng, ph\u1ea3n \u00e1nh chuy\u1ec3n \u0111\u1ed9ng khung b\u1ed5 sung m\u00e0 h\u1ec7 c\u00e1ch ly cho ph\u00e9p \u2014 v\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 gi\u1edbi h\u1ea1n c\u1ee7a ISO 20816-8.<\/p>\n

          Ti\u00eau chu\u1ea9n ISO 20816-8 c\u00f3 bao g\u1ed3m v\u1ea5n \u0111\u1ec1 rung \u0111\u1ed9ng \u0111\u01b0\u1eddng \u1ed1ng tr\u00ean m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston kh\u00f4ng?<\/h3>\n

          Kh\u00f4ng. Ti\u00eau chu\u1ea9n ISO 20816-8 ch\u1ec9 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn \u0111\u1ed9 rung c\u1ee7a khung m\u00e1y n\u00e9n v\u00e0 v\u1ecf \u1ed5 tr\u1ee5c. \u0110\u1ed9 rung \u0111\u01b0\u1eddng \u1ed1ng do xung \u0111\u1ed9ng g\u00e2y ra \u2014 th\u01b0\u1eddng l\u00e0 m\u1ed1i quan ng\u1ea1i nghi\u00eam tr\u1ecdng nh\u1ea5t \u2014 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 ri\u00eang b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 h\u01b0\u1edbng d\u1eabn c\u1ee7a Vi\u1ec7n N\u0103ng l\u01b0\u1ee3ng ho\u1eb7c b\u1eb1ng c\u00e1ch th\u1ef1c hi\u1ec7n nghi\u00ean c\u1ee9u ph\u1ea3n \u1ee9ng c\u01a1 h\u1ecdc v\u00e0 xung \u0111\u1ed9ng theo ti\u00eau chu\u1ea9n API 618 trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf.<\/p>\n

          T\u00f4i n\u00ean \u0111o \u0111\u1ed9 rung theo \u0111\u1ed9 d\u1ecbch chuy\u1ec3n, v\u1eadn t\u1ed1c hay gia t\u1ed1c cho ti\u00eau chu\u1ea9n ISO 20816-8?<\/h3>\n

          C\u00e1c ranh gi\u1edbi v\u00f9ng theo ti\u00eau chu\u1ea9n ISO 20816-8 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng v\u1eadn t\u1ed1c, c\u1ee5 th\u1ec3 l\u00e0 mm\/s RMS. S\u1eed d\u1ee5ng c\u00e1c ph\u00e9p \u0111o v\u1eadn t\u1ed1c b\u0103ng th\u00f4ng r\u1ed9ng bao ph\u1ee7 \u00edt nh\u1ea5t 2\u20131000 Hz. N\u1ebfu thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n \u0111o gia t\u1ed1c, h\u00e3y \u0111\u1ea3m b\u1ea3o n\u00f3 c\u00f3 t\u00edch h\u1ee3p ph\u1ea7n m\u1ec1m \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i sang v\u1eadn t\u1ed1c v\u1edbi \u0111\u00e1p \u1ee9ng t\u1ea7n s\u1ed1 th\u1ea5p ph\u00f9 h\u1ee3p, v\u00ec m\u00e1y n\u00e9n piston t\u1ea1o ra n\u0103ng l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3 \u1edf t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh g\u1ea5p 1 v\u00e0 2 l\u1ea7n (th\u01b0\u1eddng d\u01b0\u1edbi 20 Hz).<\/p>\n

          N\u00ean \u0111o \u0111\u1ed9 rung c\u1ee7a m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston v\u1edbi t\u1ea7n su\u1ea5t nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n

          M\u1eb7c d\u00f9 ti\u00eau chu\u1ea9n ISO 20816-8 kh\u00f4ng quy \u0111\u1ecbnh kho\u1ea3ng th\u1eddi gian gi\u00e1m s\u00e1t c\u1ee5 th\u1ec3, nh\u01b0ng th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t trong ng\u00e0nh khuy\u1ebfn ngh\u1ecb \u0111o l\u01b0\u1eddng \u0111\u1ecbnh k\u1ef3 h\u00e0ng th\u00e1ng theo tuy\u1ebfn \u0111\u01b0\u1eddng \u0111\u1ed1i v\u1edbi c\u00e1c m\u00e1y n\u00e9n kh\u00f4ng quan tr\u1ecdng v\u00e0 gi\u00e1m s\u00e1t tr\u1ef1c tuy\u1ebfn li\u00ean t\u1ee5c \u0111\u1ed1i v\u1edbi c\u00e1c m\u00e1y n\u00e9n kh\u00ed quy tr\u00ecnh quan tr\u1ecdng. C\u00e1c m\u00e1y m\u00f3c ho\u1ea1t \u0111\u1ed9ng trong V\u00f9ng C n\u00ean \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t v\u1edbi t\u1ea7n su\u1ea5t cao h\u01a1n (h\u00e0ng tu\u1ea7n ho\u1eb7c li\u00ean t\u1ee5c) cho \u0111\u1ebfn khi ho\u00e0n t\u1ea5t h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c.<\/p>\n

          Nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn n\u00e0o g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng rung \u0111\u1ed9ng m\u1ea1nh \u1edf m\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston?<\/h3>\n

          C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn bao g\u1ed3m gio\u0103ng tr\u1ee5c khu\u1ef7u ho\u1eb7c c\u1ea7n piston b\u1ecb m\u00f2n, bu l\u00f4ng \u0111\u1ebf b\u1ecb l\u1ecfng, c\u00e1c xi lanh \u0111\u1ed1i di\u1ec7n kh\u00f4ng c\u00e2n b\u1eb1ng, van m\u00e1y n\u00e9n b\u1ecb h\u01b0 h\u1ecfng ho\u1eb7c r\u00f2 r\u1ec9, c\u1ed9ng h\u01b0\u1edfng xung kh\u00ed trong h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng, s\u1ef1 l\u1ec7ch tr\u1ee5c gi\u1eefa m\u00e1y n\u00e9n v\u00e0 \u0111\u1ed9ng c\u01a1, v\u00e0 s\u1ef1 m\u00f2n tr\u1ee5c khu\u1ef7u ho\u1eb7c \u1ed5 bi. N\u1ed9i dung t\u1ea7n s\u1ed1 rung \u0111\u1ed9ng c\u1ee5 th\u1ec3 (ph\u00e2n t\u00edch ph\u1ed5) gi\u00fap ph\u00e2n bi\u1ec7t gi\u1eefa c\u00e1c nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 n\u00e0y.<\/p>\n

          C\u00f4ng c\u1ee5 "Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng - M\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston" c\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng mi\u1ec5n ph\u00ed kh\u00f4ng?<\/h3>\n

          \u0110\u00fang v\u1eady. C\u00f4ng c\u1ee5 Gi\u1edbi h\u1ea1n rung \u0111\u1ed9ng \u2014 M\u00e1y n\u00e9n kh\u00ed ki\u1ec3u piston l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 t\u00ednh to\u00e1n k\u1ef9 thu\u1eadt mi\u1ec5n ph\u00ed d\u1ef1a tr\u00ean tr\u00ecnh duy\u1ec7t (C\u00f4ng c\u1ee5 k\u1ef9 thu\u1eadt mi\u1ec5n ph\u00ed #024) th\u1ef1c hi\u1ec7n ph\u00e2n lo\u1ea1i v\u00f9ng theo ti\u00eau chu\u1ea9n ISO 20816-8. C\u00f4ng c\u1ee5 n\u00e0y kh\u00f4ng y\u00eau c\u1ea7u \u0111\u0103ng k\u00fd, c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m ho\u1eb7c thanh to\u00e1n. C\u00e1c k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 nh\u1eadp c\u00e1c gi\u00e1 tr\u1ecb rung \u0111\u1ed9ng \u0111o \u0111\u01b0\u1ee3c v\u00e0 nh\u1eadn ngay ph\u00e2n lo\u1ea1i v\u00f9ng k\u00e8m theo c\u00e1c khuy\u1ebfn ngh\u1ecb v\u1eadn h\u00e0nh.<\/p>","protected":false},"excerpt":{"rendered":"

          C\u00f4ng c\u1ee5 t\u00ednh to\u00e1n tr\u1ef1c tuy\u1ebfn mi\u1ec5n ph\u00ed \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 v\u00f9ng rung \u0111\u1ed9ng theo ti\u00eau chu\u1ea9n ISO 20816-8 d\u00e0nh cho m\u00e1y n\u00e9n piston. \u0110\u00e1nh gi\u00e1 v\u1eadn t\u1ed1c v\u1ecf \u1ed5 tr\u1ee5c so v\u1edbi gi\u1edbi h\u1ea1n v\u00f9ng A\/B\/C\/D cho m\u00e1y n\u00e9n kh\u00ed, kh\u00f4ng kh\u00ed v\u00e0 m\u00e1y n\u00e9n l\u1ea1nh tr\u00ean n\u1ec1n m\u00f3ng c\u1ee9ng v\u00e0 m\u1ec1m.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100290","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/calculator\/100290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":8,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/calculator\/100290\/revisions"}],"predecessor-version":[{"id":102639,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/calculator\/100290\/revisions\/102639"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/media?parent=100290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/categories?post=100290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/tags?post=100290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}