基于混合有限元的心肌纤维动力学仿真方法  

Methods of Myocardial Fiber Mechanic Simulation based on Mixed Finite Element

作　　者：徐宇[1] 袁永峰[1] 王宽全[1] 

机构地区：[1]哈尔滨工业大学计算机科学与技术学院,哈尔滨150001

出　　处：《智能计算机与应用》2015年第6期4-7,共4页Intelligent Computer and Applications

基　　金：国家自然科学基金(61173086)

摘　　要：心脏的节律性收缩是其泵血功能的动力学基础,研究其收缩行为可以为心脏循环系统运转提供科学指导。心脏的收缩是心脏被动力和主动力共同作用的结果。被动力行为与心肌组织的材料性质有关,主动力行为心脏受到电生理调控。本文基于混合有限元方法建立心肌纤维弹性力学模型,仿真实验表明该模型可以有效仿真心脏组织在体力、牵引力和主动力作用下的形态学变化。综上本文提出的方法可以为今后建立电力耦合模型和心脏动力学研究提供理论指导。The power of heart pumping origins from rhythmic contraction of the myocardial tissue. Research of heart contraction is benefit to understand the circulation system. Passive property of heart is determined by materials features of myocardial issue,in combination with the active force instigated by electrical activity that leads to its contraction. In this paper,it provides that based on mixed finite element methods myocardial fiber mechanic model is developed to simulate elastic features of heart contraction. The simulated results suggest that this model can effectively simulate mechanic actions of heart under body force,traction and active force. The method provides a theoretical guide to set up electro- mechanic coupling model of heart and cardiac mechanic behaviors.

关 键 词：心肌纤维力学建模 有限弹性力学 混合有限元 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]