This paper presents the methods of free flight spin test and rotation balance test in vertical wind tunnel, the design of test model is briefly expounded.
介绍了立式风洞自由飞尾旋试验和旋转天平试验的方法，简述了试验模型的设计。
At last, motor structure optimization was carried out based on analysis mechanics, which may provide valuable reference for the improvement of vertical motor design and its vibration test.
最后，在力学分析的基础上对结构进行优化，为立式电机的改进和振动测试提供了参考。
At last, motor structure optimization was carried out based on analysis mechanics, which may provide valuable reference for the improvement of vertical motor design and its vibration test.
最后，在力学分析的基础上对结构进行优化，为立式电机的改进和振动测试提供了参考。
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