人工机械瓣/血液耦合系统瞬态有限元分析<sup>*</sup>

陈大鹏; 张建海; 邹盛铨

人工机械瓣/血液耦合系统瞬态有限元分析^*

1.
西南交通大学计算工程科学研究所成都 610031;
2.
四川联合大学结构工程与应用力学系成都 610065

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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出版历程
- 收稿日期: 1994-05-30
- 刊出日期: 1995-05-15

Transient Analysis of Artificlal Mechanical Valve-Blood Interaction

1.
Institute of Computational Engineering Science, Southwest Jiaotong University, Chengdu 610031, P. R. China;
2.
Department of Engineering Mechanics, Sichuan Union University, Chengdu 610065, P. R. China

摘要

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摇压力荷载时的瞬态动力行为。结果表明,人工机械瓣瞬态动力行为近乎刚性,导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。
- 人工机械瓣 /
- 固液耦合系统 /
- 瞬态动力分析 /
- 有限元
Abstract: Using finite elemcnt method,this paper has analyzed the blood-mechanical heart valve interaction system subjected to a step pressure when the vaiue is at closing position.As demonstrated in the present stud),,in such conditions mechanical values 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 value of the blood-valve sytem can be reduced by decreasing the elastic modulus of the mechanical value.
- artificial mechanical valve /
- fluid-solid interaction /
- transient dynamic analysis /
- finite element method

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参考文献(14)

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