- \n
- Povinnost zajistit konkr\u00e9tn\u00ed zbytkov\u00e1 nevyv\u00e1\u017eenost<\/a>, kter\u00e1 by nem\u011bla p\u0159ekro\u010dit 0,1 g*mm\/kg (\u00b5m).<\/li>\n
- Po\u017eadavek na za\u0159azen\u00ed vyva\u017eovac\u00edho stroje do registru m\u011b\u0159idel.<\/li>\n<\/ul>\n
Prove\u010fme anal\u00fdzu p\u0159im\u011b\u0159enosti a proveditelnosti implementace t\u011bchto po\u017eadavk\u016f z pohledu skute\u010dn\u00e9ho spot\u0159ebitele.<\/p>\n
1. Anal\u00fdza po\u017eadavk\u016f na p\u0159esnost stroje<\/h2>\n
Ov\u011b\u0159\u00edme platnost po\u017eadavk\u016f z\u00e1kazn\u00edka na p\u0159esnost pomoc\u00ed technick\u00e9 specifikace vyva\u017eovac\u00edho stroje ur\u010den\u00e9ho k vyva\u017eov\u00e1n\u00ed rotor\u016f elektromotor\u016f, turbodmychadel a kompresor\u016f o hmotnosti 10 a\u017e 1500 kg. Specifikace stanovuje toleranci specifick\u00e9 zbytkov\u00e9 nevyv\u00e1\u017eenosti, kter\u00e1 by podle z\u00e1kazn\u00edka nem\u011bla p\u0159ekro\u010dit 0,1 g*mm\/kg.<\/p>\n
Pro ov\u011b\u0159en\u00ed tohoto po\u017eadavku odkazujeme na tabulku 1 v ISO 1940-1<\/a> \u201eMechanick\u00e9 vibrace \u2013 Po\u017eadavky na vyv\u00e1\u017een\u00ed rotor\u016f.\u201c Na z\u00e1klad\u011b doporu\u010den\u00ed uveden\u00e9 v t\u00e9to tabulce p\u0159edpokl\u00e1d\u00e1me, \u017ee p\u0159esnost vyv\u00e1\u017een\u00ed rotory<\/a> elektromotor\u016f, turbodmychadel a kompresor\u016f, kter\u00e9 m\u00e1 objednan\u00fd stroj zajistit, mus\u00ed spl\u0148ovat po\u017eadavky na kvalitu G2.5 grade<\/a>. Pokud p\u0159edpokl\u00e1d\u00e1me, \u017ee o\u010dek\u00e1van\u00e1 provozn\u00ed ot\u00e1\u010dka vyv\u00e1\u017een\u00e9ho rotoru \u010din\u00ed nap\u0159\u00edklad 200 Hz (co\u017e s velkou rezervou pokr\u00fdv\u00e1 ot\u00e1\u010dky v\u011bt\u0161iny zn\u00e1m\u00fdch stroj\u016f), m\u016f\u017eeme snadno vypo\u010d\u00edtat p\u0159\u00edpustnou zbytkovou specifickou nevyv\u00e1\u017eenost pro statick\u00e9 (jednoplo\u0161n\u00e9) vyva\u017eov\u00e1n\u00ed pomoc\u00ed vzorce 5 z normy: eper = 2500 \/ (6,28 * 200) = 1,99 g*mm\/kg.<\/p>\n
S ohledem na doporu\u010den\u00ed t\u00e9\u017ee normy ISO 1940-1 (dnes nahrazena normou ISO 21940-11<\/a>), jak je uvedeno v odd\u00edle 7, by m\u011bla b\u00fdt p\u0159\u00edpustn\u00e1 hodnota stanoven\u00e1 pro dvoupodporov\u00fd asymetrick\u00fd rotor p\u0159i dynamick\u00e9m vyva\u017eov\u00e1n\u00ed alespo\u0148 0,3 * eper, co\u017e by v na\u0161em p\u0159\u00edpad\u011b \u010dinilo 0,6 g*mm\/kg, nikoli 0,1 g*mm\/kg, jak po\u017eadovala p\u016fvodn\u00ed technick\u00e1 specifikace. Toto rozd\u011blen\u00ed p\u0159\u00edpustn\u00e9 vyva\u017eovac\u00ed tolerance<\/a> Toto rozd\u011blen\u00ed p\u0159\u00edpustn\u00e9 hodnoty mezi t\u011bmito dv\u011bma korek\u010dn\u00edmi rovinami lze zkontrolovat pomoc\u00ed na\u0161eho Kalkul\u00e1tor zbytkov\u00e9 nevyv\u00e1\u017eenosti (ISO 21940-11)<\/a>.<\/p>\n
Jin\u00fdmi slovy, jak ukazuje na\u0161e anal\u00fdza, po\u017eadavky na p\u0159esnost vyva\u017eovac\u00edho stroje v t\u00e9to technick\u00e9 specifikaci (a mnoha dal\u0161\u00edch podobn\u00fdch dokumentech) jsou zjevn\u011b nadm\u011brn\u00e9. Praktick\u00e1 realizace t\u011bchto nadm\u011brn\u00fdch po\u017eadavk\u016f zahrnuje v\u00fdrobce do \u0159e\u0161en\u00ed z\u00e1va\u017en\u00fdch konstruk\u010dn\u00edch a technologick\u00fdch \u00fakol\u016f, kter\u00e9 obvykle vznikaj\u00ed p\u0159i v\u00fdrob\u011b stroj\u016f s mimo\u0159\u00e1dn\u011b vysokou p\u0159esnost\u00ed, co\u017e nepochybn\u011b ovliv\u0148uje n\u00e1klady a dobu v\u00fdroby stroj\u016f. Nav\u00edc tyto po\u017eadavky nejsou v\u017edy technicky provediteln\u00e9.<\/p>\n
Je tak\u00e9 d\u016fle\u017eit\u00e9 poznamenat, \u017ee efektivn\u00ed provoz takto vysoce p\u0159esn\u00fdch stroj\u016f m\u016f\u017ee vy\u017eadovat, aby potenci\u00e1ln\u00ed z\u00e1kazn\u00edk splnil n\u011bkolik dal\u0161\u00edch podm\u00ednek, jako je pot\u0159eba termokonstantn\u00edch a \u010dist\u00fdch prostor, vibra\u010dn\u011b izolovan\u00fdch z\u00e1klad\u016f apod., p\u0159i\u010dem\u017e n\u00e1klady na jejich vytvo\u0159en\u00ed mohou dokonce p\u0159ev\u00fd\u0161it n\u00e1klady spojen\u00e9 s po\u0159\u00edzen\u00edm stroje. Na mo\u017enou n\u00e1mitku z\u00e1stupce z\u00e1kazn\u00edka’ (autora v\u00fd\u0161e uveden\u00fdch technick\u00fdch specifikac\u00ed), \u017ee spln\u011bn\u00ed tohoto po\u017eadavku umo\u017e\u0148uje dos\u00e1hnout na stroji v\u00fdrazn\u011b ni\u017e\u0161\u00ed zbytkov\u00e9 nevyv\u00e1\u017eenosti, skute\u010dn\u011b odpov\u00eddaj\u00edc\u00ed t\u0159\u00edd\u011b G0.4, lze doporu\u010dit, aby se sezn\u00e1mili s doporu\u010den\u00edmi normy GOST 22061-76 \u201eStroje a technologick\u00e1 za\u0159\u00edzen\u00ed. Syst\u00e9m t\u0159\u00edd kvality vyv\u00e1\u017een\u00ed. Z\u00e1kladn\u00ed ustanoven\u00ed\u201c (n\u00e1rodn\u00ed norma, jej\u00edm\u017e modern\u00edm mezin\u00e1rodn\u00edm ekvivalentem je ISO 21940-11, d\u0159\u00edve ISO 1940-1), kter\u00e1 platila p\u0159ed zaveden\u00edm ISO 1940-1.<\/p>\n
V \u010d\u00e1sti 3 t\u00e9to normy, kterou vypracovali nejlep\u0161\u00ed odborn\u00edci v oblasti vyva\u017eov\u00e1n\u00ed ze Sov\u011btsk\u00e9ho svazu, se od\u016fvodn\u011bn\u011b uv\u00e1d\u00ed n\u00e1sleduj\u00edc\u00ed:<\/p>\n
- \n
- Rotory v\u00fdrobk\u016f za\u0159azen\u00fdch do 1. t\u0159\u00eddy kvality vyv\u00e1\u017een\u00ed (t\u0159\u00edda G0.4 podle ISO 1940-1) by m\u011bly b\u00fdt za v\u0161ech provozn\u00edch podm\u00ednek vyva\u017eov\u00e1ny ve vlastn\u00edch lo\u017eisc\u00edch, ve vlastn\u00ed sk\u0159\u00edni a s pou\u017eit\u00edm vlastn\u00edho pohonu.<\/li>\n
- Rotory v\u00fdrobk\u016f za\u0159azen\u00fdch do 2. t\u0159\u00eddy kvality vyva\u017eov\u00e1n\u00ed (t\u0159\u00edda G1.0) by m\u011bly b\u00fdt vyva\u017eov\u00e1ny ve vlastn\u00edch lo\u017eisk\u00e1ch nebo ve vlastn\u00edm pouzd\u0159e, se speci\u00e1ln\u00edm pohonem, pokud nen\u00ed vlastn\u00ed pohon k dispozici.<\/li>\n
- Rotory v\u00fdrobk\u016f za\u0159azen\u00fdch do 3. a\u017e 11. t\u0159\u00eddy jakosti vyva\u017eov\u00e1n\u00ed (t\u0159\u00eddy G2.5 a\u017e G4000) se sm\u011bj\u00ed vyva\u017eovat jako d\u00edly nebo mont\u00e1\u017en\u00ed celky.<\/li>\n<\/ol>\n
Podstatou t\u011bchto doporu\u010den\u00ed je, \u017ee snaha o dosa\u017een\u00ed stup\u0148\u016f kvality vyva\u017eov\u00e1n\u00ed G0,4 a G1,0 na vyva\u017eovac\u00edm stroji je \u010dasto technicky i ekonomicky nesmysln\u00e1. Po instalaci rotor\u016f do stroje se dosa\u017een\u00e1 p\u0159esnost ztr\u00e1c\u00ed a k jej\u00edmu obnoven\u00ed je nutn\u00e9 dodate\u010dn\u00e9 vyv\u00e1\u017een\u00ed sestavy rotor\u016f (ve vlastn\u00edch lo\u017eisk\u00e1ch a s vlastn\u00edm pohonem), kter\u00e9 se prov\u00e1d\u00ed pomoc\u00ed p\u0159enosn\u00e9ho vibra\u010dn\u00edho vyva\u017eovac\u00edho za\u0159\u00edzen\u00ed.<\/p>\n
Jako n\u00e1zorn\u00fd p\u0159\u00edklad t\u00e9to teze lze uv\u00e9st vyva\u017eov\u00e1n\u00ed brusn\u00e9ho kotou\u010de ur\u010den\u00e9ho pro pou\u017eit\u00ed na vysoce p\u0159esn\u00e9 hrotov\u00e9 brusce na kulato (t\u0159\u00edda p\u0159esnosti “C”). Podle po\u017eadavk\u016f d\u0159\u00edve zm\u00edn\u011bn\u00e9 tabulky 1 normy ISO 1940-1 by kvalita vyv\u00e1\u017een\u00ed brusn\u00e9ho kotou\u010de m\u011bla minim\u00e1ln\u011b odpov\u00eddat t\u0159\u00edd\u011b G0.4. Vzhledem k tomu, \u017ee o\u010dek\u00e1van\u00e1 frekvence ot\u00e1\u010den\u00ed brusn\u00e9ho kotou\u010de b\u011bhem provozu bude 6000 rpm (100 Hz), ur\u010d\u00edme pomoc\u00ed zn\u00e1m\u00e9ho vzorce 7 normy ISO 1940-1 p\u0159\u00edpustnou zbytkovou specifickou nevyv\u00e1\u017eenost eper, kter\u00e1 bude 0.64 g*mm\/kg.<\/p>\n
Jin\u00fdmi slovy, po vyv\u00e1\u017een\u00ed na vyva\u017eovac\u00edm stroji, p\u0159i zaji\u0161t\u011bn\u00ed t\u00e9to tolerance, by posunut\u00ed t\u011b\u017ei\u0161t\u011b brusn\u00e9ho kotou\u010de vzhledem k technologick\u00e9 ose (ose trnu vyva\u017eovac\u00edho stroje) nem\u011blo p\u0159ekro\u010dit 0,64 \u00b5m. Proto\u017ee dovolen\u00e9 radi\u00e1ln\u00ed h\u00e1zen\u00ed v\u0159etena brusky t\u0159\u00eddy “C” podle n\u00e1rodn\u00ed normy GOST 11654-90 je 2 \u00b5m, m\u016f\u017ee se po namontov\u00e1n\u00ed na\u0161eho brusn\u00e9ho kotou\u010de na toto v\u0159eteno (p\u0159enesen\u00ed z\u00e1kladny kotou\u010de z technologick\u00e9 osy na pracovn\u00ed osu) zbytkov\u00e1 m\u011brn\u00e1 nev\u00fdvaha v\u00fdrazn\u011b zv\u00fd\u0161it a p\u0159ekro\u010dit toleranci doporu\u010denou ISO 1940-1 nejm\u00e9n\u011b t\u0159ikr\u00e1t. V takov\u00fdch a dal\u0161\u00edch podobn\u00fdch p\u0159\u00edpadech je, jak bylo uvedeno d\u0159\u00edve, nutn\u00e9 dodate\u010dn\u00e9 vyva\u017eov\u00e1n\u00ed ke kompenzaci chyb vznikaj\u00edc\u00edch ve f\u00e1zi mont\u00e1\u017ee.<\/p>\n
Na z\u00e1klad\u011b v\u00fd\u0161e uveden\u00e9ho m\u016f\u017eeme tvrdit, \u017ee v naprost\u00e9 v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f lze po\u017eadavek na p\u0159esnost u st\u0159edn\u011b t\u011b\u017ek\u00fdch a t\u011b\u017ek\u00fdch vyva\u017eovac\u00edch stroj\u016f omezit na \u00farove\u0148 zbytkov\u00e9 specifick\u00e9 nevyv\u00e1\u017eenosti 0,5 g*mm\/kg nebo dokonce 1,0 g*mm\/kg. Zaveden\u00ed tohoto doporu\u010den\u00ed do praxe umo\u017e\u0148uje v\u00fdrobci v\u00fdrazn\u011b sn\u00ed\u017eit slo\u017eitost a n\u00e1klady na v\u00fdrobu stroje, zat\u00edmco z\u00e1kazn\u00edk (za p\u0159edpokladu realizace racion\u00e1ln\u00edho technologick\u00e9ho postupu) m\u016f\u017ee dos\u00e1hnout po\u017eadovan\u00e9 p\u0159esnosti vyva\u017eov\u00e1n\u00ed. Hlavn\u00ed v\u00fdjimkou z tohoto pravidla mohou b\u00fdt mal\u00e9 specializovan\u00e9 vyva\u017eovac\u00ed stroje pou\u017e\u00edvan\u00e9 nap\u0159\u00edklad pro vyva\u017eov\u00e1n\u00ed rotor\u016f gyroskop\u016f, automobilov\u00fdch turbodmychadel apod. Konstruk\u010dn\u00ed vlastnosti t\u011bchto stroj\u016f umo\u017e\u0148uj\u00ed dos\u00e1hnout \u00farovn\u011b zbytkov\u00e9 m\u011brn\u00e9 nevyv\u00e1\u017eenosti 0,1 g*mm\/kg nebo ni\u017e\u0161\u00ed, co\u017e je technicky od\u016fvodn\u011bn\u00e9 a ekonomicky provediteln\u00e9.<\/p>\n
![\"Balanset-1A](\"https:\/\/vibromera.eu\/wp-content\/uploads\/2024\/03\/5969837695301697400_120.webp\")
<\/p>\n2. O pot\u0159eb\u011b zahrnout vyva\u017eovac\u00ed stroje do registru m\u011b\u0159idel<\/h2>\n
V posledn\u00edch letech byl v na\u0161\u00ed zemi u\u010din\u011bn p\u0159ekvapiv\u00fd objev, kter\u00fd by mohl zm\u00e1st \"v m\u00edru zesnul\u00e9\" odborn\u00edky z ENIMS**, kte\u0159\u00ed vyvinuli klasifik\u00e1tor kovoobr\u00e1b\u011bc\u00edch stroj\u016f. N\u011b\u010d\u00ed \"lehkou rukou\" se na trhu stroj\u016f objevil zcela nov\u00fd typ za\u0159\u00edzen\u00ed - \"vyva\u017eovac\u00ed stroje pro m\u011b\u0159en\u00ed vibrac\u00ed\", kter\u00e9 mus\u00ed m\u00edt certifik\u00e1t rusk\u00e9 st\u00e1tn\u00ed normy a p\u0159\u00edslu\u0161n\u00e9 ozna\u010den\u00ed.*)<\/p>\n
A v\u0161echno by bylo v po\u0159\u00e1dku, ale najednou se uk\u00e1zalo, \u017ee \"pokrokov\u00ed\" z\u00e1kazn\u00edci za\u010dali do sv\u00fdch technick\u00fdch specifikac\u00ed povinn\u011b za\u0159azovat po\u017eadavek na za\u0159azen\u00ed vyva\u017eovac\u00edch stroj\u016f do registru m\u011b\u0159idel. Pokusme se pochopit, nakolik je tento po\u017eadavek pr\u00e1vn\u011b a technicky opr\u00e1vn\u011bn\u00fd a nakolik je ekonomicky provediteln\u00fd.<\/p>\n
Nejprve je u\u017eite\u010dn\u00e9 pochopit, jak tento po\u017eadavek souvis\u00ed s doporu\u010den\u00edmi st\u00e1vaj\u00edc\u00edch regula\u010dn\u00edch dokument\u016f. Za\u010dn\u011bme normou ISO 8-82 \"Stroje na \u0159ez\u00e1n\u00ed kov\u016f. Obecn\u00e9 po\u017eadavky na zkou\u0161en\u00ed p\u0159esnosti\". Tato norma stanov\u00ed z\u00e1kladn\u00ed pojmy a principy klasifikace stroj\u016f podle p\u0159esnosti, obecn\u00e9 po\u017eadavky na zkou\u0161en\u00ed p\u0159esnosti a obecn\u00e9 po\u017eadavky na metody ov\u011b\u0159ov\u00e1n\u00ed p\u0159esnosti. Je d\u016fle\u017eit\u00e9 si v\u0161imnout, \u017ee odkazy na postupy hodnocen\u00ed kvalitativn\u00edch charakteristik stroj\u016f v t\u00e9to norm\u011b pou\u017e\u00edvaj\u00ed pouze term\u00edn \"ov\u011b\u0159ov\u00e1n\u00ed\" a nen\u00ed zde \u017e\u00e1dn\u00e1 zm\u00ednka o pot\u0159eb\u011b za\u0159azen\u00ed stroj\u016f do Registru m\u011b\u0159idel, a tedy o pot\u0159eb\u011b jejich \"kalibrace\".<\/p>\n
Dal\u0161\u00edm dokumentem, kter\u00e9mu je t\u0159eba v\u011bnovat pozornost, je ISO 21940-21 (d\u0159\u00edve ISO 2953) “Mechanick\u00e9 vibrace \u2013 Vyva\u017eov\u00e1n\u00ed rotor\u016f \u2013 \u010c\u00e1st 21: Popis a hodnocen\u00ed vyva\u017eovac\u00edch stroj\u016f.” Tato norma, kter\u00e1 stanovuje konkr\u00e9tn\u00ed po\u017eadavky na technick\u00e9 charakteristiky vyva\u017eovac\u00edch stroj\u016f a metody jejich “ov\u011b\u0159ov\u00e1n\u00ed”, rovn\u011b\u017e neobsahuje po\u017eadavky p\u0159edepisuj\u00edc\u00ed nutnost kalibrace stroj\u016f a jejich za\u0159azen\u00ed do Registru m\u011b\u0159ic\u00edch p\u0159\u00edstroj\u016f. V t\u00e9to souvislosti je t\u0159eba poznamenat, \u017ee po\u017eadavky souvisej\u00edc\u00ed s kalibrac\u00ed chyb\u011bj\u00ed i v norm\u00e1ch pro jin\u00e9 typy obr\u00e1b\u011bc\u00edch stroj\u016f, jako jsou normy ISO pro brusky a CNC stroje, kter\u00e9 mohou rovn\u011b\u017e zahrnovat r\u016fzn\u00e9 m\u011b\u0159ic\u00ed syst\u00e9my.<\/p>\n
Podobn\u00e9 po\u017eadavky nav\u00edc nenajdeme v technick\u00e9 dokumentaci v\u0161ech zn\u00e1m\u00fdch model\u016f zahrani\u010dn\u00edch vyva\u017eovac\u00edch stroj\u016f, co\u017e je podle na\u0161eho n\u00e1zoru tak\u00e9 d\u016fle\u017eit\u00fd precedens. Na z\u00e1klad\u011b v\u00fd\u0161e uveden\u00fdch argument\u016f lze vyvodit n\u00e1sleduj\u00edc\u00ed z\u00e1v\u011bry:<\/p>\n
- \n
- St\u00e1vaj\u00edc\u00ed regula\u010dn\u00ed a technick\u00e9 dokumenty vypracovan\u00e9 pro obr\u00e1b\u011bc\u00ed stroje, a zejm\u00e9na pro vyva\u017eovac\u00ed stroje, neobsahuj\u00ed po\u017eadavky na jejich za\u0159azen\u00ed do registru m\u011b\u0159idel, a tedy ani na pot\u0159ebu jejich kalibrace. V d\u016fsledku toho zahrnut\u00ed t\u011bchto po\u017eadavk\u016f do technick\u00fdch specifikac\u00ed p\u0159i v\u00fdb\u011brov\u00fdch \u0159\u00edzen\u00edch \"de facto\" v\u00fdrazn\u011b zvy\u0161uje v\u00fdrobn\u00ed n\u00e1klady stroj\u016f a v\u00fddaje na jejich n\u00e1sledn\u00fd provoz a, jak se n\u00e1m zd\u00e1, \"de iure\" poru\u0161uje pr\u00e1va v\u00fdrobc\u016f stroj\u016f v dobr\u00e9 v\u00ed\u0159e, kte\u0159\u00ed se \u0159\u00edd\u00ed literou a duchem st\u00e1vaj\u00edc\u00edch regula\u010dn\u00edch dokument\u016f.<\/li>\n
- Rutinn\u00ed zkou\u0161ky m\u011b\u0159ic\u00edho syst\u00e9mu mohou a m\u011bly by b\u00fdt prov\u00e1d\u011bny jako sou\u010d\u00e1st vyva\u017eovac\u00edho stroje v souladu s po\u017eadavky a doporu\u010den\u00edmi normy ISO 21940-21 (d\u0159\u00edve ISO 2953), kter\u00e1 p\u0159edpokl\u00e1d\u00e1 pou\u017eit\u00ed referen\u010dn\u00edho rotoru, sady zku\u0161ebn\u00edch z\u00e1va\u017e\u00ed a kalibrovan\u00fdch vah p\u0159i kontrol\u00e1ch. Tyto zkou\u0161ky mus\u00ed nezbytn\u011b zahrnovat n\u00e1sleduj\u00edc\u00ed typy kontrol:\n
- \n
- Kontrola minim\u00e1ln\u011b dosa\u017eiteln\u00e9 zbytkov\u00e9 nevyv\u00e1\u017eenosti (Umar);<\/li>\n
- Kontrola koeficientu sn\u00ed\u017een\u00ed nevyv\u00e1\u017eenosti (URR);<\/li>\n
- Kontrola \u010dinnosti podm\u00edn\u011bn\u00e9ho vyva\u017eovac\u00edho obvodu (s postupem ot\u00e1\u010den\u00ed rotoru o 180\u00b0).<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
Je d\u016fle\u017eit\u00e9 poznamenat, \u017ee tyto kontroly se prov\u00e1d\u011bj\u00ed bez demont\u00e1\u017ee m\u011b\u0159ic\u00edho syst\u00e9mu ze stroje a nevy\u017eaduj\u00ed pou\u017eit\u00ed kalibra\u010dn\u00edho vibra\u010dn\u00edho stojanu, co\u017e eliminuje nutnost zapojen\u00ed specialist\u016f z extern\u00edch organizac\u00ed a v\u00fdrazn\u011b sni\u017euje pracnost a n\u00e1klady na pr\u00e1ci. Krom\u011b v\u00fd\u0161e uveden\u00fdch hlavn\u00edch kontrol lze v p\u0159\u00edpad\u011b pot\u0159eby p\u0159\u00edmo na stroji (s pou\u017eit\u00edm v\u00fd\u0161e uveden\u00e9ho referen\u010dn\u00edho rotoru, sady zku\u0161ebn\u00edch z\u00e1va\u017e\u00ed a kalibrovan\u00fdch vah) zkontrolovat i dal\u0161\u00ed d\u016fle\u017eit\u00e9 parametry m\u011b\u0159ic\u00edho syst\u00e9mu, mezi n\u011b\u017e pat\u0159\u00ed nap\u0159:<\/p>\n
- \n
- Opakovatelnost m\u011b\u0159en\u00ed amplitudy a f\u00e1ze vibra\u010dn\u00edho sign\u00e1lu mezi jednotliv\u00fdmi m\u011b\u0159en\u00edmi;<\/li>\n
- Linearita ode\u010dt\u016f m\u011b\u0159ic\u00edho syst\u00e9mu podle amplitudy vibra\u010dn\u00edho sign\u00e1lu;<\/li>\n
- rozli\u0161ovac\u00ed schopnost m\u011b\u0159ic\u00edho syst\u00e9mu (minim\u00e1ln\u00ed \u00farove\u0148 nevyv\u00e1\u017eenosti, kterou m\u011b\u0159ic\u00ed syst\u00e9m stabiln\u011b registruje) atd.<\/li>\n<\/ul>\n
Z\u00e1v\u011br<\/h2>\n
Autor douf\u00e1, \u017ee z\u00e1kazn\u00edci i v\u00fdrobci vyva\u017eovac\u00edch stroj\u016f pochop\u00ed argumenty a doporu\u010den\u00ed uveden\u00e1 v t\u00e9to pr\u00e1ci, jej\u00edm\u017e hlavn\u00edm c\u00edlem je minimalizovat v\u00fdrobn\u00ed n\u00e1klady pro ob\u011b strany a z\u00e1rove\u0148 zajistit odpov\u00eddaj\u00edc\u00ed kvalitu vyva\u017eovac\u00edch operac\u00ed.<\/p>\n
*Pozn\u00e1mka:<\/em> Pokud bude tento trend pokra\u010dovat, nen\u00ed vylou\u010deno, \u017ee se brzy dozv\u00edme o vzniku vibra\u010dn\u011b m\u011b\u0159ic\u00edch brusek, vibra\u010dn\u011b m\u011b\u0159ic\u00edch lis\u016f, a dokonce i vibra\u010dn\u011b m\u011b\u0159ic\u00edch v\u00e1lcoven. Koneckonc\u016f maj\u00ed s vyva\u017eovac\u00edmi stroji spole\u010dn\u00e9 i mo\u017en\u00e9 vyu\u017eit\u00ed specializovan\u00fdch za\u0159\u00edzen\u00ed pro m\u011b\u0159en\u00ed vibrac\u00ed.<\/p>\n
ENIMS je zkratka pro \"Experiment\u00e1ln\u00ed v\u00fdzkumn\u00fd \u00fastav kovoobr\u00e1b\u011bc\u00edch stroj\u016f\" (\u042d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u043e-\u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0439 \u0438\u043d\u0441\u0442\u0438\u0442\u0443\u0442 \u043c\u0435\u0442\u0430\u043b\u043b\u043e\u0440\u0435\u0436\u0443\u0449\u0438\u0445 \u0441\u0442\u0430\u043d\u043a\u043e\u0432). Jednalo se o v\u00fdzkumn\u00fd \u00fastav v Sov\u011btsk\u00e9m svazu, kter\u00fd se v\u011bnoval v\u00fdvoji a zdokonalov\u00e1n\u00ed r\u016fzn\u00fdch typ\u016f kovoobr\u00e1b\u011bc\u00edch stroj\u016f a za\u0159\u00edzen\u00ed. Institut hr\u00e1l v\u00fdznamnou roli v rozvoji stroj\u00edrensk\u00e9ho pr\u016fmyslu a standardizaci kovoobr\u00e1b\u011bc\u00edch za\u0159\u00edzen\u00ed t\u00edm, \u017ee vypracov\u00e1val normativn\u00ed dokumenty a normy, nap\u0159\u00edklad klasifik\u00e1tory pro obr\u00e1b\u011bc\u00ed stroje a metody zkou\u0161en\u00ed jejich p\u0159esnosti.<\/p>\n
V.D. Feldman, hlavn\u00ed specialista spole\u010dnosti LLC \"Kinematics\", 2024<\/p>","protected":false},"excerpt":{"rendered":"
Two Remarks on the Reasonableness of Customer Requirements for Balancing Machine Manufacturers Introduction Over the past one and a half years, our company has received more than 30 inquiries regarding the purchase of various types of balancing machines. An analysis of the Technical Specifications attached to these inquiries reveals that […]<\/p>\n","protected":false},"author":2,"featured_media":4081,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ai_generated_summary":"","footnotes":""},"categories":[54],"tags":[],"class_list":["post-4285","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-content"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/posts\/4285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/comments?post=4285"}],"version-history":[{"count":3,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/posts\/4285\/revisions"}],"predecessor-version":[{"id":102215,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/posts\/4285\/revisions\/102215"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/media\/4081"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/media?parent=4285"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/categories?post=4285"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/tags?post=4285"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- Po\u017eadavek na za\u0159azen\u00ed vyva\u017eovac\u00edho stroje do registru m\u011b\u0159idel.<\/li>\n<\/ul>\n