摘要
采用有限元计算与试验模态相结合的方法进行两种模态频率和振型分析,以及模态置信度的计算与对比。结果表明,在计算模态与试验模态相似对应的模态振型中,两者的板条振型弯曲趋势相似;计算模态与试验模态数值接近,两者相关性良好,有限元结构模型可以反映实际结构模型。
The water-lubricated rubber bearing＇s dynamic feature was analyzed with FE modal and experimental modal methods, and both bearing＇s modal frequencies and mode shapes were compared, as well as modal assurance criterion （MAC）. The results suggested that when the mode shapes are similar between calculations modal and experimental modal, the slats modes bending have the similar trend. Calculated modal and experimental modal values are closed and correlate well. Finite Element Modal can reflect the actual structure of the model.
出处
《船海工程》
2013年第2期94-96,114,共4页
Ship & Ocean Engineering
关键词
有限元法
水润滑橡胶艉轴承
模态
finite element method
water-lubricated rubber bearing
modal analysis
