| 6-UPS并联机床静刚度的有限元分析和实验研究 |
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| 引用本文： | 李育文,张华,杨建新,王立平,汪劲松.6-UPS并联机床静刚度的有限元分析和实验研究[J].中国机械工程,2004,15(2):112-115. |
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| 作者姓名： | 李育文 张华 杨建新 王立平 汪劲松 |
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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： | 用有限元方法分析一种6-UPS并联机床的静刚度，基于AN—SYS建立该机床的有限元模型，考虑了并联机床的支链和机架的变形，并利用Matrix27单元来模拟铰链；通过APDL语言实现有限元模型的参数化设计，计算出并联机床在工作空间内的刚度分布。静刚度实验表明了该模型的有效性。通过该有限元模型还可以对并联机床的动态性能做进一步分析。
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| 关 键 词： | 并联机床 静刚度 有限元分析 刚度实验 |
| 文章编号： | 1004-132X(2004)02-0112-04 |
Finite Element Analysis and Experimental Study for the Stiffness of a 6-UPS Parallel Kinematic Machine |
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| Li YuwenZhang HuaYang JianxinWang LipingWang Jinsong Tsinghua University,Beijing.Finite Element Analysis and Experimental Study for the Stiffness of a 6-UPS Parallel Kinematic Machine[J].China Mechanical Engineering,2004,15(2):112-115. |
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| Authors: | Li YuwenZhang HuaYang JianxinWang LipingWang Jinsong Tsinghua University Beijing |
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| Affiliation: | Li YuwenZhang HuaYang JianxinWang LipingWang Jinsong Tsinghua University,Beijing,100084 |
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| Abstract: | This paper presents Finite Element Analysis (FEA) for a 6-UPS Parallel Kinematic Machine (PKM). ANSYS software was applied to establish the FEA model. The deformations of the links and the machine frame were considered and MATRIX27 elements were used to simulate the sphere joints and universal joints. The FEA model was parameterized by APDL language and the stiffness distribution was computed over the workspace. Stiffness experiments was performed and the results show the validity of the FEA model, through which dynamic performance of the PKM can be further analyzed. |
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| Keywords: | parallel kinematic machine static stiffness finite element analysis stiffness experiment |
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