| 基于液体静压支承转台的动力学分析与数值模拟 |
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| 引用本文： | 魏旭壕,叶红玲,刘赵淼.基于液体静压支承转台的动力学分析与数值模拟[J].科技导报(北京),2009,27(20):55-59. |
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| 作者姓名： | 魏旭壕 叶红玲 刘赵淼 |
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| 作者单位： | 北京工业大学机械工程与应用电子技术学院; |
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| 基金项目： | 北京市教委项目(KM200910005005);;北京市科委科技发展重点项目(Z08010402880000);;科技部科技重大专项(2009ZX04002-031) |
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| 摘 要： | 根据实际工程中的液体静压支承系统,将油膜力简化为弹簧支承,建立了工作转台的有限元模型,对工作转台的动力学特性进行了分析。通过数值模拟,研究了单个油腔供油量相同和总供油量不变两种状况下,油腔数目对液体静压支承工作转台振动频率的影响。保持各个油腔供油量相同,在一定的供油范围内,不同油腔数目的液体静压支承工作转台的振动频率随着油腔数目和单个油腔供油量的增大而增大,且这种增大是非线性的。保持总供油量不变,且油腔数目较多(大于6)时,可以不考虑油腔数目对工作转台低阶振动频率的影响。这对进一步研究液体静压支承系统整体的动力学特性提供了一定的理论依据。
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| 关 键 词： | 液体静压支承 动力学 数值模拟 模态 频率 |
Dynamic Analysis and Numerical Simulation Based on the Turntable of the Hydrostatic Support System |
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| WEI Xuhao,YE Hongling,LIU Zhaomiao College of Mechanical Engineering , Applied Electronics,Beijing University of Technology,Beijing ,China.Dynamic Analysis and Numerical Simulation Based on the Turntable of the Hydrostatic Support System[J].Science & Technology Review,2009,27(20):55-59. |
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| Authors: | WEI Xuhao YE Hongling LIU Zhaomiao College of Mechanical Engineering Applied Electronics Beijing University of Technology Beijing China |
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| Institution: | WEI Xuhao,YE Hongling,LIU Zhaomiao College of Mechanical Engineering , Applied Electronics,Beijing University of Technology,Beijing 100124,China |
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| Abstract: | In this paper, a finite element model of a turntable of the Hydrostatic Support System is established according to engineering practice.The springs, with the action of the oil-film force, are added to the turntable model.The dynamic property of the turntable is analyzed with the numerical simulation.The effect of the number of oil chambers on the frequency of the turntable is studied under two different situations, that is, a constant oil supply of the single oil chamber and the constant total oil supply.In... |
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| Keywords: | hydrostatic support dynamic numerical simulation modal frequency |
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