Design Of Sun Tracking Device For The Space Station Hardware-in-loop Test-bed And Validation Verification

Humans in space exploration,space station is one of the indispensable tools.Electricity is the station to maintain its operation,as well as test and ensure the important energy for human survival.Nowadays the solar array as the energy source of most of the space station,how to improve the utilization rate of solar energy is the main content of today's energy problem research station.The solar array drive assembly used to drive the solar array,to sun to keep it for real-time operation.In order to improve the energy efficiency is the main content of today's scientists.Solar Array Drive Assembly used to drive the solar array for orientation to sun,in order to ensure that the drive in the process of control characteristics,as ensure the solar array at predetermined direction,and can control the vibration.Need testing the Sun Tracking Device,to ensure that pre-launch can get accurate driving control features.To insure the normal operation after launching its orbit.Nowadays because of the space station technology only two countries in the world has been fully mastered,and the technology of our country executes the blockade.So urgent need to verify their own independent property rights in China,the directional device test rig,ensure the standard to test for the directional device,to ensure the smooth construction of the space station.First,Studies to determine the orientation of the solar array dirve assembly,both Hardware in the Loop,the large-scale solar array instead of using a computer mathematical models.Referring to the electromechanical actuator test bench design of Sun Tracking Device for mechanical support platform test bed,with imitation plane miller structure to increase its stiffness and first order natural frequency,to ensure that it does not affect the normal tests.The design of the loading unit structure,ensure the gapless measuring torque characteristics,using air coupling products radial offset.The measured disturbance torque standard strain type torque sensor.Secondly,in order to ensure the performance indexes meet the design requirements ofmechanical structure of the platform.On the mechanical platform of optimization.Elaborated the engineering optimization problems and related theory,introduces the CAD technology and the ANSYS Workbench simulation and optimization calculation process and the method based on the.A detailed description of the size of the single objective optimization for design based on Design of experiment method ANSYS Workbench.On the test rig and other mininstries and the modal analysis is carried out.Finally,the research on the test bench,the Solar Array Drive Assembly to verify the effectiveness of the scheme.This paper expounds the necessity of validation.And put forward two kinds of schemes are torsion free end solutions and ends of torsional vibration system of constraint solution isolation system,analysis of the advantages and disadvantages of the two schemes,the final selection of both ends of the constraints of torsional vibration system as a validation of the final solution.The calculation of torsional vibration system of the main technical parameters.