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法向接触刚度对螺栓连接结构振动模态的影响研究
引用本文:赵丹,艾延廷,翟学,陈勇.法向接触刚度对螺栓连接结构振动模态的影响研究[J].航空发动机,2012,38(3):54-57.
作者姓名:赵丹  艾延廷  翟学  陈勇
作者单位:沈阳航空航天大学航空航天工程学院,沈阳110036
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。

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

Effect of Normal Contact Stiffness on Vibration Modes of Bolt Connected Structure
Authors:ZHAO Dan  AI Yan-ting  ZHAI Xue  CHEN Yong
Affiliation:( Faculty of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, China)
Abstract: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.
Keywords:bolted structure  structural vibration  contact stiffness  mode  bolt pretension  normal stiffness factor
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