Method of virtual vibration test for satellite based on virtual reality
A satellite vibration virtual test technology is presented based on the virtual reality(VR).It focuses on the key technologies such as dynamic modeling and simulation,data analysis and model modification,and the satellite virtual vibration test.The test results are reproduced by VR.The dynamical characteristics of the satellite structure are obtained,physical parameters are identified,and the model optimizations are completed.The optimization of the satellite model and the improvement of the vibration test scheme are realized,which meets the test requirements of the satellite mechanics environment.Virtual vibration experiments are conducted in X,Y,and Z directions,with frequencies ranging from 5 to 100 Hz and acceleration amplitudes of 0.1 g.The experimental results indicate that the virtual vibration experiment is in good agreement with the real experiment results.
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