TRANSIENT ANALYSIS OF ARTIFICIAL MECHANICAL VALVE--BLOOD INTERACTION

Abstract

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.

Key words: Stokes flow, Stokeslet, Fouries transform, harmonic function, biharmonic function, artificial mechanical valve, fluid-solid interaction, transient dynamic analysis, finite element method

Chen Da-peng;Zhang Jian-hai;Zou Sheng-quan. TRANSIENT ANALYSIS OF ARTIFICIAL MECHANICAL VALVE--BLOOD INTERACTION. Applied Mathematics and Mechanics (English Edition), 1995, 16(5): 437-442.

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References

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