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Modeling simulation of nonlinear dynamics of periodic cardiac pacemaker using bond graph techniques

机译:结合图技术对周期性心脏起搏器非线性动力学的建模与仿真

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A lot of research has been done targeting differential equations and state space of cardiac pacemakers while very few authors have discussed the circuit of the van der Pol oscillator. This paper aims at developing the van der Pol oscillator using RLC circuits with non-linear resistance. This was done by representing the modified forced van der pol oscillator with non-linear resistance using piecewise S curve obtained through an operational amplifier. The state space has been obtained, using 20-Sim software, followed by its differential equation. The phase portrait of the modified forced van der Pol oscillator has also been developed. In this paper, the behavior of real cardiac pacemaker has been reproduced in time domain and a comparison of the real and the reproduced cardiac pacemaker has been made.
机译:针对心脏起搏器的微分方程和状态空间,已经进行了许多研究,而很少有学者讨论van der Pol振荡器的电路。本文旨在使用具有非线性电阻的RLC电路开发van der Pol振荡器。这是通过使用经过运算放大器获得的分段S曲线用非线性电阻表示改进的强制范德波尔振荡器来完成的。状态空间已使用20-Sim软件获得,随后是其微分方程。改进的强制范德波尔振荡器的相图也已经开发出来。在本文中,真实心脏起搏器的行为已在时域中进行了再现,并对真实心脏起搏器与已复制的心脏起搏器进行了比较。

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