摘要
主要叙述了压气机叶片的固有频率测试技术和先进的有限元计算方法。固有频率测试采用了频率跟踪和振幅自动控制技术,确保叶片始终处于共振状态。有限元计算中使用的是8节点40自由度超参数壳体单元,计算结果和试验结果获得了令人满意的一致。
The teat of natural frequency and advanced finite element calculation method are presented.In order to keep blade in the state of resonance,frequency following method and amplitude automatic control technology are used to test the natural frequency of com- pressor blade,superparametric shell element with eight nodes forty degress of freedom is used in the calculation of finite element,the calculation results coincide with test results satisfactorily.
