Bepul Muhandislik Vositasi — #029
Egiluvchan Rotor Muvozanatlash Toleransi
Estimate per-mode unbalance tolerance for flexible rotors — a simplified preliminary model based on ISO 21940-12 concepts. Enter rotor mass, maximum speed, balance grade, and number of flexible modes.
Results
Umumiy ruxsat etilgan muvozanatsizlik
ISO 21940-11 bilan bir xil (qattiq rotor uchun asosiy qiymat):
Rejim bo'yicha tolerans taqsimoti
Moslashuvchan rotorlar uchun umumiy tolerans qattiq korpus rejimi (past tezlikdagi) va har bir moslashuvchan rejim o'rtasida taqsimlanadi. Keng tarqalgan muhandislik yondashuvi:
Bu yerda N — moslashuvchan rejimlar soni + 1 (qattiq korpus rejimi). Har bir rejim umumiy muvozanatsizlik byudjetining teng ulushini oladi.
Tuzatish tekisliklari
For Nflex moslashuvchan rejimlar uchun tuzatish tekisliklarining minimal soni:
Given: m = 500 kg, n = 8000 RPM, G2.5, 2 flexible modes
ω = 2π × 8000/60 = 837.76 rad/s
eper = 2.5 × 1000 / 837.76 = 2.984 μm
Utotal = 2.984 × 500 = 1492 g·mm
Per-mode = 1492 / 3 = 497 g·mm (3 rejim: 1 qattiq + 2 moslashuvchan)
Kerakli tekisliklar soni: 2 + 2 = 4 ta tuzatish tekisligi
⚠️ Note: The equal-distribution model is a simplified preliminary estimate, not a calculation defined in ISO 21940-12. In practice, modal mass participation may differ; for formal acceptance use the procedures and tolerances of ISO 21940-12 and verify by rotor dynamics analysis.
Moslashuvchan rotorlarni ob'ektda balanslashtirish. Professional asboblar bilan ko'p tekislikli balanslashtirish imkoniyati. 50 dan ortiq mamlakatda qo'llaniladi.
