CAJ | 학술논문

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。
침대운동원운동시역출현동맥、모세혈관손상등현상，기우류체동역학、고체역학、계산궤방진기술화초탄성재료모형，이용유한원분석방법，건립료심기동맥혈관망류고우합모형，병분석료심기동맥급기지혈관망내혈액류동적속도장、압력분포이급유혈액류동인기적혈관수력변형등역학특정。기우심기동맥혈관망류고우합모형，이용PID공제산법공제심기동맥입구압력성공실현료혈관내대측점혈액류속적자동공제，병차차PID공제계통대혈액류속적변화유흔호적향응령민도。
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.