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10-маъруза. Krivoship-shatun mexanizmi-ning kinematikasi va dinamikasi
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bet | 2/3 | Sana | 12.06.2024 | Hajmi | 32,14 Kb. | | #262809 |
Bog'liq 10-маъруза. Krivoship-shatun mexanizmi-ning kinematikasi va dinaλ= 1/3….1/3,8
Krivoshipning burchagiy kuchishi, burchagiy tezligi va burchagiy tezlanishi
Burchagiy tezlik krivoshipning burchagiy kuchishidan vatst buyicha birinchi darajali kosila olish yuli bilan topiladi. Agar burchagiy tezlik uzgarmas bulsa, u tirsakli valning berilgan minutiga aylanishlari soni orkali kuyidagicha ifodalanadi:
Burchagiy tezlik krivoshipning burchagiy kuchishidan vatst buyicha birinchi darajali kosila olish yuli bilan topiladi. Agar burchagiy tezlik uzgarmas bulsa, u tirsakli valning berilgan minutiga aylanishlari soni orkali kuyidagicha ifodalanadi:
ω=dφ/dt= 2πn/60
Krivoshipning burchagiy kuchishi ω =const bulganda tekis xarakat formulasidan aniklanadi:
φ= ω *t, radian
Krivoshipning shatun buyni ukining aylana tezligi:
V a = w*R .
Krivoship aylanganda, kiymati uzgarmas va krivoshipning radiusi buylab markazga yunalgan markazga iitilma tezlanish vujudga keladi:
wa = ω2*R.
Porshenning kuchishi
Krivoship o burchakka burilganda porshen yukori chekka nuktadan(1-racm, a) kuyidagi masofaga kuchadi:
Sn = V0V = OV0 — OV = OV0 - (OS + SV),
bu yerda OV0 = R + L
Tugri burchakli ASV va ASO uchburchakliklardan esa
OS = OA cosφ= R cosφ
SV = ABcosβ = L cosβ
bо‘lgani uchun
Sn = R
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