Dynamic analysis of planar flexible six-bar mechanism with multi-joint clearances
In order to improve the accuracy of dynamic analysis,the effects of multi-clearance joints and component flexibility on the dynamic response of multi-body mechanisms is considered,based on the planar six-bar mechanism.The dynamic simulation of the six-bar mechanism with multi-clearance joints and flexible connecting rod is carried out by solid modeling and citing the"impact function"contact force model in ADAMS software.The system dynamics under clearance number,clearance position,clearance size,flexible connecting rod and clearance coupling are investigated.The simulation results show that compared with the single clearance joint,the multi-clearance joints will produce greater contact force,resulting in more intense acceleration fluctuation of the component.The closer the clearance joint to the motor position,the more obvious the influence on the dynamic behavior of the mechanism.The influence of clearance on the dynamic fluctuation of the mechanism can be greatly reduced when considering the flexibility of the connecting rod.
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