Abstract
Here, the effects of clearance joint on impact dynamic characteristics of planar mechanisms were studied. At first, a line-contact impact joint model with axial sizes was established. Based on an improved nonlinear normal impact force model and a modified tangential Coulomb friction force model, the effect laws of clearances on impact dynamic characteristics of a planar slider-crank mechanism were studied through analyzing slider acceleration, clearance joint's contact force, acceleration frequency spectra and velocity-acceleration phase diagram under different clearances. The results showed that the larger the clearance, the bigger the oscillation amplitude of the mechanism's dynamic characteristics, and the lower the oscillation frequency; the larger the clearance, the more nonlinear the mechanism's dynamic characteristics.
| Original language | English |
|---|---|
| Pages (from-to) | 74-78 |
| Number of pages | 5 |
| Journal | Zhendong yu Chongji/Journal of Vibration and Shock |
| Volume | 36 |
| Issue number | 17 |
| DOIs | |
| State | Published - 15 Sep 2017 |
Keywords
- Clearance joint
- Impact dynamics
- Nonlinear impact force model
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