Design Of Two-dimensional Air Floatation Test Device For Satellite Wings

With the advancement of science and technology and the development of human beings,mankind has continuously explored and studied the exploration of unknown areas,and in particular exploration of space is a milestone in scientific development.Simulating the zero-gravity environment in space to test the reliability and stability of space equipment has become an important part of space research.The suspension method is a widely used method to simulate the low-gravity environment.Especially the air-floating suspension method has many advantages such as low friction,high stability,and long service life.It is the main trend in current research.However,existing air flotation devices still have shortcomings and cannot meet the test requirements for large-stroke deployment.In this paper,according to the design requirements of the solar wing deployment test device,an air floatation-exploration air guide rail structure is adopted and an air floatation test device is designed.The main research contents and research results of this paper are as follows:1.According to the system design requirements,the structural design of the air-float rail system was carried out,the model size of the air-float rail was determined,and the SolidWorks solid model of the air-float rail was drawn.2.Apply the theory of mechanical design,analyze the degrees of freedom of the transverse rails and the air-cushioned cushions,determine the constraints,and provide a SolidWorks solid model for the components of the air-buoyed cushions.3.Use the ANSYS workbench platform to optimize the topology of the transverse guide rails.Under the premise of meeting the stiffness requirements of the cross guide rails,the weight of the cross guide rail assembly can be reduced,and the bearing of the air bearing can be reduced;the ANSYS workbench platform is used for the air floating connection.In the design,the design method for increasing the air-floating connection stiffness can be used to make the air-float guide rail run smoothly.4.Apply Fluent to establish air cushion simulation model,and obtain the curve relationship between each parameter and bearing capacity and air consumption of the air bearing cushion by using the simulation results,and consider various factors comprehensively to determine the optimal size of the parameters.5.The bearing capacity of the air bearing cushion was tested by an air bearing bearing capacity test device,and the reliability of the design was verified by a simulation test.