用优化方法识别机床结构结合面动力学参数

Identification of Interface Dynamic Parameters of Machine-Tool Structures by Optimization Technique

The determination of interface stiffness and damping of machine-tool structures is one of key problems to dynamic analysis of machinetools. Based on references 1], a method to identify interface dynamic parameters of machine-tool structures using measured transfer function data and optimization technique is presented in this paper. It is not necessary to construct analytical models of machine-tool parts in this method, so it is rather simple in test and computation and suitable for identification of interface dynamic parameters of complex machine-tool structures. Compared with the method in references 1] the identification results are more accurate and reliable, because the constraints of lower and upper limits to the interface parameters identified can be set in this method.