东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (5): 716-719.DOI: -

• 论著 • 上一篇    下一篇

直线滚动导轨结合部动力学特性测试及参数识别

孙伟;汪博;闻邦椿;   

  1. 东北大学机械工程与自动化学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50905029)

Dynamics characteristics testing and parameter identification for joints of linear rolling guideway

Sun, Wei (1); Wang, Bo (1); Wen, Bang-Chun (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Sun, W.
  • About author:-
  • Supported by:
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摘要： 基于辨识原理,提出了导轨结合部动力学参数的试验辨识流程,包括标记测量点、频响函数测试、测试数据处理、编制辨识程序等步骤.以组装在床身上的THK导轨结合部为对象,进行了动力学特性测试.并应用Matlab编制了辨识算法,识别出导轨结合部系统法向方向的质量矩阵、刚度矩阵、黏性阻尼矩阵和结构阻尼矩阵,证明了动刚度矩阵法辨识导轨结合部动力学参数的有效性.

关键词: 滚动导轨, 结合部, 动力学特性, 动力学测试, 参数识别

Abstract: Based on identification theory, an experiment identification flow for guideway joint dynamics characteristics is proposed, including marking test points, testing frequency response functions (FRF), dealing with test data, and programming identification algorithms. Dynamics testing and parameter identification was conducted on a THK guideway joint that had been assembled in the bed. Using the Matlab open source identification algorithm, dynamics characteristics for a normal direction were obtained, including mass matrix, stiffness matrix, viscosity damping matrix, and structural damping matrix. Validity of identifying guideway joint characteristics was verified.

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