| 流体瞬变有限元分析 |
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| 引用本文： | 杨启真,王运赣,黄树槐.流体瞬变有限元分析[J].华中科技大学学报(自然科学版),1992(5). |
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| 作者姓名： | 杨启真 王运赣 黄树槐 |
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| 作者单位： | 华中理工大学机械工程二系
(杨启真，王运赣)，华中理工大学机械工程二系(黄树槐) |
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| 基金项目： | 国家自然科学基金，高等学校博士点专项科研基金的资助 |
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| 摘 要： | 本文提出一种二维非定常微可压缩粘性液体流动计算的有限元瞬变分析方法及其计算模型,据此建立了采用全主元策略的波阵法分析软件,并以快速锻造液压机管道的流体瞬变计算实例说明其应用.
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| 关 键 词： | 流体 瞬变 有限元分析 非对称波阵法 快速锻造液压机 |
A Finite Element Analysis for Fluid Transients |
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| Yang Qizhen Wang Yungan Huang Shuhuai.A Finite Element Analysis for Fluid Transients[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1992(5). |
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| Authors: | Yang Qizhen Wang Yungan Huang Shuhuai |
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| Institution: | Yang Qizhen Wang Yungan Huang Shuhuai |
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| Abstract: | This paper presents a transient analysis by the finite element method for a two-dimensional flow calculation of time-varying, slightly compressible and viscous fluid in high-powered hydraulic transmission systems. A new calculational model using the finite element method for the transient coupled field of the flow has been developed. An analytical software using the frontal solution method with a total pivoting choice has been worked out, which can effectively deal with difficulties caused by the unsymmetrical feature of finite element coefficient matrices in numerical simulation. By taking a high speed forging hydraulic press as an example, the application of the analytical method is demonstrated. Some fundamental principles in connection with the fluid transient performance in this kind of machine are summarized. The open-close characteristics for the main control valve of a high-speed forging hydraulic press have been determined to ensure small hydraulic surges. |
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| Keywords: | fluid transients finite element analysis unsymmetrical fron- tal solution method high-speed forging hydraulic press |
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