Dynamics Analysis And Wear Regular About Stretch Structure With Clearance Of Satellite Solar Array

With the development of satellite technology,the demand for the expansion precision of the solar wing panel expansion mechanism is getting higher and higher.The influence of the kinematic pair clearance on the nonlinear dynamic characteristics of the system has also been paid more and more attention.However,the more powerful the mechanism is,the more complex the structure is,the more the clearances of the kinematic pairs are,and the influence of multiple clearances on the dynamic performance of the system is more complex and more difficult to predict.The topic for the multi gap problem of complicated mechanical system,the solar wing panels deployment mechanism as the research object,using the method of combination of theory and practice,from the three parts of the gap gap description,dynamic modeling,system dynamics modeling,analysis gradually,established a dynamic model with clearance solar wing deployment mechanism system panel.Influence and analysis of rotating hinge gap and drive shaft speed,braking time and dynamic characteristics of solar array wing mechanism,the virtual prototype dynamics simulation and mathematic model of wear,establish rotary hinge wear model,using panel solar wing deployment mechanism wear rule curve analysis,systematically study the wear mechanism on the expansion effect of the dynamic characteristics with clearance solar wing panels,through appropriate wear reducing drive shaft,improve the solar wing expansion windsurfing accuracy and stability mechanism,ensure the solar wing deployment mechanism and stable operation of windsurfing.This study provides reference data for the design and analysis of the solar wing plate unfolding mechanism and the analysis of the wear life.