卫星振动试验中推力的估算方法

准确预估规定试验条件下卫星振动试验所需推力对于试验的设计与实施具有重要意义。文章在常规卫星振动试验需用推力估算方法的基础上,结合具体的小卫星应用实例提出了支反力分析预示法和类比相似结构卫星推力的方法来估算卫星振动试验需用推力。通过与实际振动试验推力数据对比,文章给出了卫星振动试验需用推力估算方法的实用评估结论。

The thrust evaluation for satellite vibration test

The evaluation of the required thrust under specified vibration conditions is important in the design and implementation of the satellite vibration test. Based on the common thrust evaluation method, two new methods to predict the required thrust are proposed according to the application example of a high-resolution small satellite: one is by analyzing the reaction force on the satellite's constraint boundary; the other is an estimation based on the thrust of similar structural satellite. By comparing the predicted thrust and the actual one in the small satellite vibration test, some practical evaluation method of predicting the required thrust is proposed.