Experimental Study on Dynamics of Open Loop Mechanism with Joint Clearance

The dynamics experiment of open loop mechanism with multiple joint clearances is very complicated, Due to joint clearance effects and uncertain factors (e.g., driver saturation and gear nonlinearity, etc.), the experimental study on dynamics of open loop mechanism with multiple clearance joints is troublesome. The influence of joint clearances is difficult to be measured in the experimental system. Here, an experimental system was designed to study the influence of multiple clearance joints on the displacement, velocity, and acceleration of the open loop mechanism. The results show that the joint clearance has little influence on the end displacement and velocity of the test platform, but has a great influence on the acceleration, and produces high frequency vibration.