BKX—I型并联机床动力学分析

doi:10.13190/jbupt.200805.40.331

北京邮电大学学报 ›› 2008, Vol. 31 ›› Issue (5): 40-43.doi: 10.13190/jbupt.200805.40.331

BKX—I型并联机床动力学分析

李金泉1，付铁2，栾振兴1

1. 北京邮电大学自动化学院，北京100876；2.北京理工大学机械与车辆工程学院，北京100081

收稿日期:2008-03-13 修回日期:1900-01-01 出版日期:2008-10-30 发布日期:2008-10-30
通讯作者: 李金泉

The Dynamic Analysis on BKX—I PKM

LI Jin-quan1, FU Tie2, LUAN Zhen-xing1

1.School of Automation,Beijing University of Posts and Telecommunications, Beijing 100876, China
2. School of Mechanical and Vehicular Engineering. Beijing Institute of Technology, Beijing 100081, China）

Received:2008-03-13 Revised:1900-01-01 Online:2008-10-30 Published:2008-10-30
Contact: LI Jin-quan

摘要/Abstract

摘要：

应用子结构法建立了一种UPS型6自由度并联机床及其部件的有限元实体模型，并通过模态实验和有限元模态分析对有限元实体模型进行了验证.应用有限元法对机床模型进行了谐响应分析，获得了机床各节点沿机床虚拟x、y、z轴向的位移谐响应曲线.在此基础上，对该并联机床谐响应规律进行了分析，明确了该机床谐响应的特点和响应幅度的数量级，为该类机床的结构优化设计提供了理论依据.

关键词: 并联机床, 谐响应, Stewart平台, 动力学

Abstract:

A finite element full-scale entity model for 6-UPS parallel kinematic machine (PKM) and its accessories are established based on substructure method .It is further confirmed through a modality study and a finite element modality analysis. The displacement harmonic response curves of the nodes on the virtual x, y and z axes of PKM are obtained through a harmonic response analysis on PKM performed with a finite element method. Based on these resultant curves, a law of harmony response on the PKM is investigated. The resultant parameters clearly demonstrate a harmony response characteristic of PKM and its response scope magnitude, which can provide an important theoretical basis for the optimal structure design of PKM.

Key words: parallel kinematic machine, harmonic response, stewart platform, dynamics

中图分类号:

TH12
TG43

李金泉1，付铁2，栾振兴1. BKX—I型并联机床动力学分析[J]. 北京邮电大学学报, 2008, 31(5): 40-43.

LI Jin-quan1, FU Tie2, LUAN Zhen-xing1. The Dynamic Analysis on BKX—I PKM[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2008, 31(5): 40-43.

参考文献

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BKX—I型并联机床动力学分析

The Dynamic Analysis on BKX—I PKM

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