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- 저자 : İbrahim Uzmay (검색결과 1 건)
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Modeling and simulation of joint clearance effects on mechanisms having rigid and flexible links
Selçuk Erkaya,İbrahim Uzmay 대한기계학회 2014 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.28 No.8
In this study, kinematic and dynamic characteristics of a planar four-bar mechanism having joint clearance and link flexibility are investigated. Assuming that joint clearance as a virtual massless link, artificial clearances are developed at crank-coupler and couplerfollowerjoints. Contact model in joints with clearance is established using the nonlinear spring-damper model and the friction effect isconsidered using the Coulomb friction model. Then the simulation is implemented and the kinematic and dynamic characteristics ofmodel mechanism are investigated. The computational methodology can predict the effects of clearance on planar mechanism havingrigid and flexible links. The results are evaluated for the case of stationary phase, and naturally show that extreme values occur in outputof the mechanism with clearances. Due primarily to the suspension effect of the flexible link, values of these peaks in the flexible mechanismdecrease relative to that of the rigid mechanism. In addition, the flexibility has a significant effect on the vibration response of themechanism with joint clearance.
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