| BKX-I型并联机床动力学分析 |
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| 引用本文： | 李金泉,付铁,栾振兴.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. |
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| 作者姓名： | 李金泉 付铁 栾振兴 |
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| 作者单位： | 北京邮电大学,自动化学院,北京100876;北京理工大学机械与车辆工程学院,北京,100081 |
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| 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.
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| 关 键 词： | 并联机床 谐响应 Stewart平台 动力学 |
| 收稿时间： | 2008-3-13 |
The Dynamic Analysis on BKX-I PKM |
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| LI Jin-quan,FU Tie,LUAN Zhen-xing.The Dynamic Analysis on BKX-I PKM[J].Journal of Beijing University of Posts and Telecommunications,2008,31(5):40-43. |
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| Authors: | LI Jin-quan FU Tie LUAN Zhen-xing |
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| Affiliation: | 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） |
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| 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. |
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| Keywords: | parallel kinematic machine harmonic response stewart platform dynamics |
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