摘要
从理论上研究了影响法向接触刚度的主要因素,导出了其计算公式;基于Ansys Workbench软件螺栓预紧力模块,利用优化接触面间的法向刚度因子方法,对螺栓连接结构进行了模态分析;最后对计算结果与模态试验结果进行比较分析。研究表明:模态参数的有限元计算结果与试验结果吻合较好。
The main factors affect the normal contact stiffness were studied in theory, and the contact stiffness formula was derived. The modal analysis of the bolt connectionstructure were conducted by the bolt pretension module of Ansys Workbench software and the optimization method for the normal stiffness factor between the contact surfaces. Finally, the calculation were compared and analyzed with the modal test results. The results show that the calculations result obtained from mode parameters agree well with the experiment results.
出处
《航空发动机》
2012年第3期54-57,共4页
Aeroengine
关键词
螺栓连接
结构振动
接触刚度
模态
螺栓预紧力
法向刚度因子
bolted structure
structural vibration
contact stiffness
mode
bolt pretension
normal stiffness factor
