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一、前言卫星振动试验的目的是,在发射前确认卫星能否承受发射时的振动环境,能否圆满地完成飞行任务。因此,在进行振动试验时,应尽可能使卫星承受的环境与发射时的振动环境相接近,并由此来确定试验结构和试验振级。按上述方法,在以往的卫星振动试验中,卫星系统的低频振动环境,采用正弦振动来模拟;而高频振动环境,则进行随机振动试验来模拟,但也有用声试验来模拟的。
I. INTRODUCTION The purpose of the satellite vibration test is to confirm before the launch whether the satellite can withstand the vibration environment during launch and whether the mission can be satisfactorily completed. Therefore, during the vibration test, the environment that the satellite is subjected to should be as close as possible to the vibration environment during launch, and the test structure and test vibration level should be determined accordingly. According to the above method, in the previous satellite vibration test, the low-frequency vibration environment of the satellite system is simulated by using sinusoidal vibration; and the high-frequency vibration environment is simulated by the random vibration test, but also by the acoustic test.