Exciting force model of blade has been set up according the characteristic of gas shock excitation. Spectrum of the exciting force has been analysed and emulated.
3、根据气体激振的特点,建立叶片激振力模型,分析了激振力的频谱特征并做了计算机仿真,为叶片各阶共振强度的对比分析提供理论依据。
参考来源 - 旋转叶片振动性能参数测试技术研究The expression of the pile top reponse when subjected to transient force is given,and the effects of exciting force and degree of variable section on the pile top velocity response are studied respectively.
最后，获得了瞬态半个正弦波荷载作用下桩顶速度响应的半解析解，并且研究了激振力的持续时间、变截面程度对桩顶速度时域响应的影响。
参考来源 - 分层土中变截面桩振动问题半解析解的研究 SEMI·2,447,543篇论文数据，部分数据来源于NoteExpress
Secondly, the exciting force of the exciter is deduced.
推导双电动机同步振动激励力的数学表达式；
The result shows that the method of predicting exciting force at tooth put forward is effective.
结果表明。本文提出的预测单个轮齿起振力的方法是一种较有效的方法。
The gas exciting force caused by blade tip clearance may cause rotors unsteady under certain condition.
转子偏心引起的气流激振力在一定条件下可能诱发转子失稳。
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