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Dynamic performances analysis of a high-speed precision machining center

WANG Fu-qiang;RUI Zhi-yuan;LEI Chun-li;FENG Rui-cheng;College of Mechano-Electronic Engineering,Lanzhou Univ.of Tech.;  
In order to solve a problem which the performances parameters of the linear rolling guideway surfaces were hardly ascertained,an spring-damper equivalent model and an modal test method for linear rolling guideway surfaces were proposed.The performances parameters of linear rolling guideway surfaces were acquired by the test and applied to the finite element model of the machining center.Based on the modal analysis,the finite element model of the machining center was analyzed.The high-speed precision machining center was analyzed by modal test.Compare the results of test and the finite element analysis,it shown that they are coincided basically.The weak points were obtained from the test result,and it laid the foundation for the structural optimal design of the machining center.
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