| 人工机械瓣／血液耦合系统瞬态有限元分析 |
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| 引用本文： | 陈大鹏,邹盛铨.人工机械瓣／血液耦合系统瞬态有限元分析[J].应用数学和力学,1995,16(5):409-414. |
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| 作者姓名： | 陈大鹏 邹盛铨 |
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| 作者单位： | 西南交通大学计算工程科学研究所，四川联合大学结构工程与应用力学系 |
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| 基金项目： | 国家自然科学基金及国家教委博士点基金 |
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| 摘 要： | 本文将人工机械心瓣／血液耦合系统作为研究对象，采用有限元法，分析了热解碳、钛合金钢、钴－铬合金钢及陶瓷四种材料机械瓣关闭状态下受突加阶梯压力荷载时的瞬态动力行为。结果表明，人工机械瓣态动力行为近乎刚性，寻致瓣叶上产生较高冲击压力，减小机械瓣的弹性模量，可以降低瓣／血液耦合系统的冲击压力。
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| 关 键 词： | 人工机械瓣 固液耦合系统 有限元 血液 人工瓣膜 |
Transient Analysis of Artificlal Mechanical Valve-Blood Interaction |
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| Chen Da-peng Zhang Jian-hai.Transient Analysis of Artificlal Mechanical Valve-Blood Interaction[J].Applied Mathematics and Mechanics,1995,16(5):409-414. |
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| Authors: | Chen Da-peng Zhang Jian-hai |
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| Abstract: | Using finite element method, this paper has analyzed the blood mechanical heart valve interaction system subjected to a step pressure when the valve is at closing position. As demonstrated in the present study, in such conditions mecha-nical valbes made of pyrolytic carbon,Ti alloy, Co-Cr alloy and ceramics tend to be very stiff which result in high impinging pressure. The impinging pressure acted on the valve of the blood-valve system can be reduced by decreasing the elastic modulus of the mechanical valve. |
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| Keywords: | artificial mechanical valve fluid-solid interaction transient dynamic analysis finite element method |
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