| 新型并联机床静刚度特性的有限元分析及优化设计 |
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| 引用本文： | 陈光伟,王君英.新型并联机床静刚度特性的有限元分析及优化设计[J].机械设计与制造,2006(12):4-6. |
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| 作者姓名： | 陈光伟 王君英 |
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| 作者单位： | 清华大学,精密仪器与机械学系,北京,100084 |
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| 摘 要： | 静刚度分析是机床设计的重要内容之一,对一种新型龙门式并联机床的平面并联机构进行了研究,通过位置逆解求出了广义全工作空间;建立了整机静刚度的有限元模型,得到动平台在广义工作空间下的刚度分布规律;找出影响Z向位置精度的关键因素并进行了优化设计,为进一步改进并联机床提供重要的依据。
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| 关 键 词： | 并联机床 运动学 有限元 刚度特性 |
| 文章编号： | 1001-3997(2006)12-0004-03 |
| 收稿时间： | 2006-04-23 |
| 修稿时间： | 2006年4月23日 |
The Finite element analysis and optimization of static stiffness of a new parallel kinematic machine |
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| CHEN Guang-wei,WANG Jun-ying.The Finite element analysis and optimization of static stiffness of a new parallel kinematic machine[J].Machinery Design & Manufacture,2006(12):4-6. |
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| Authors: | CHEN Guang-wei WANG Jun-ying |
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| Affiliation: | Dept. Precision Instruments and Mechanology,Tsinghua University, Beijing 100084, China |
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| Abstract: | Analysis of static stiffness is one of the important issues of machine tools design. On the study of a new PKM, the inverse kinematics and generalized workspace are presented. FEM is used to establish the model of static stiffness of the whole machine and the static stiffness distribution of the moving platform in the generalized workspace is obtained. The key factors and suggestions on optimizing stiffness of Z direction have been given which will provide concernful support for further optimization of PKM. |
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| Keywords: | Parallel machine Kinematics Finite Element Stiffness behavior |
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