Research On High Accuracy Simulation Of Satellite Solar Wing In Microgravity Environment

After nearly half of the world’s development,China’s aerospace industry has grown from a major space power into a global space power.The biggest difference between the space environment and the ground environment for satellites,spacecraft and astronauts is the zero gravity and microgravity of the space environment.This subject is to verify the reliability of simulating the three-dimensional migration movement of a large satellite solar wing in the microgravity environment through the establishment of a 3d microgravity environment simulation experimental platform,and select the active following method based on the analysis of multiple methods.The main researches of this paper are as follows:(1)This paper summarizes the research status of the microgravity environment simulation methods at home and abroad,analyzes the working characteristics of the satellite solar wing panel migration,and finally selects the suspension method to build the microgravity environment simulation platform.(2)The working principle of passive and active following system and the precision of gravity balance are analyzed and studied respectively.In order to further improve the gravity balance precision and introduce the principle of hydrogen air bag balance,the research can meet the requirements of precision range of gravity balance and additional torque precision.(3)The system model and satellite solar wing model were analyzed by mathematical modeling.Modeling and analysis of spatial coordinate transformation of platform system based on D-H method,system differential kinematics modeling based on geometric method,and satellite solar wing dynamics analysis based on Lagrange.The space position change and motion characteristics of the platform system and the satellite solar wing are fully analyzed,which provides scientific system theory support for the motion control.(4)Detailed mechanical structure design,power component selection and structural optimization analysis based on ANSYS were carried out for the hanging system,three-dimensional moving position positioning device,gantry frame and Angle encoder group,and the appropriate mechanical structure was finally determined through analysis and calculation.By establishing the mathematical model,the deviation Angle error of three different hanging systems is analyzed and calculated respectively,and the optimal hanging system method is selected.(5)The ADAMS based kinematics simulation of the satellite solar wing model and three different arrangement methods is carried out and the optimal suspension system is analyzed and validated by experiments.The accuracy of the study is proved by this method.