对螺栓结合部接触刚度和接触阻尼识别法的研究

A Research on the Contact Stiffness and Contact Damping of Bolt Joint

本文以立柱型螺栓结合部(以后简称结合部)为研究对象,在建立起其动力学模型的基础上,应用非线性生优化与实验动态测试相结合,提出了一种识别螺栓结合部接触刚度和接触阻尼的方法,最后对识别结果和动态测试结果作了比较。比较结果表明,该方法以及与之相应的程序是行之有效的。

This paper proposes a method to identify the contact stiffness and contact damping by the combination of nonlinear oplimazation method and experimental-dynamic-testing, on the basis of having established the dynamic model of the bolt-joint. It has been shown that this method is correct and effective.