基于计算机仿真的心肌动脉血管网流固耦合仿真分析  

Simulation of Fluid Structure Interaction Model for Arterial Vessels among College Athletes Based on Computer Simulation

作　　者：韦俊芳[1] 

机构地区：[1]浙江大学体育与艺术部,杭州310058

出　　处：《世界科技研究与发展》2014年第3期277-280,290,共5页World Sci-Tech R&D

基　　金：国家自然科学基金(22833038);浙江省教育厅科研项目(Y201329431)资助

摘　　要：针对运动员运动时易出现动脉、毛细血管损伤等现象,基于流体动力学、固体力学、计算机仿真技术和超弹性材料模型,利用有限元分析方法,建立了心肌动脉血管网流固耦合模型,并分析了心肌动脉及其支血管网内血液流动的速度场、压力分布以及由血液流动引起的血管受力变形等力学特征。基于心肌动脉血管网流固耦合模型,利用PID控制算法控制心肌动脉入口压力成功实现了血管内待测点血液流速的自动控制,并且此PID控制系统对血液流速的变化有很好的响应灵敏度。Aimed at the frequent injuries of arterial vessels and capillary vessels that happen to the sports professional students in colleges and universities during their training,finite element method,or FEM,is used to build a fluid-structure interaction model and to analyze the fluid dynamical characteristics of blood flow and pressure distribution as well as me-chanical characteristics of load-carrying and deformation based on fluid dynamics,solid mechanics and hyperelastic material models.PID control algorithm is used to control inlet pressure for the artery in fluid-structure interaction model to realize au-tomatic control of blood flow at measurement point.Additionally,PID control system has the higher response sensitivity for blood flow.

关 键 词：有限元分析 动脉血管 流固耦合 PID控制算法 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] R873[自动化与计算机技术—计算机科学与技术]