基于Multisim8的二阶网络状态轨迹仿真分析

二阶网络暂态过程有几种情况,理论计算复杂,课堂上难以直观展现。在此以RLC串联电路的零输入响应为例,提出了用Multisim8软件研究二阶网络的暂态过程及状态轨迹的方法。在过阻尼、临界阻尼以及欠阻尼3种情况下,利用Multisim8软件的虚拟仪器对RLC串联电路的电容电压、电感电流的暂态过程及对应的网络状态轨迹进行仿真和展示。结果表明,Multisim8软件可以形象直观、快速准确地实现二阶网络的动态分析,用其仿真是一种很好的辅助教学手段。

Analysis of second-order network state trajectory simulation based on Multisim8

There are several conditions in the second-order network transient process. Its theoretical calculation is com-plex,and it is difficult to show its state visually in class. Taking the zero input response of the RLC series circuit as an exam-ple,the method of researching second-order circuit transient process and the state trajectory with Multisim8 software is presentedin this paper. In the cases of overdamping,critical damping and underdamping,the virtual instrument based on Multisim8 soft-ware was used to simulate and display the transient process of capacitor voltage and inductive current,as well as the correspond-ing network state trajectory of RLC series circuit. The results show that Multisim8 software can realize the dynamic analysis ofsecond-order network visually,rapidly and accurately,and the simulation based on Multisim8 software is a good auxiliary teachingmethod.