基于LabVIEW的非线性系统相轨迹教学仿真平台设计

Design of the teaching simulation platform of the phase locus of the non-linear system based on LabVIEW

相轨迹能反映系统运动规律的全部信息,在日常教学和实验中,相轨迹存在绘制具有复杂性、不准确性和不直观性等问题,因此用LabVIEW设计非线性系统教学仿真平台。该平台能根据输入的模型参数自动匹配相应阶次的系统模型,且能选择非线性环节类型及修改系统模型参数来绘制不同系统的相轨迹图。实践结果表明,该教学平台能够解决上述问题,并能够较直观形象地通过相轨迹分析系统性能,具有操作简单、实用性强的优点,为课堂教学和实验提供了便利,可改善教学效果,提高教学质量。

All of the system s movement information can be reflected through the phase locus. Due to the problems of the complexity, inaccuracy and nonintuitive in drawing the phase locus during classroom teaching and experiments, the teaching simulation platform of the phase locus of the non-linear system was designed using LabVIEW. On the platform, the system model can be automatically matched according to the input model parameters, and in order to plot the different phase locus, the types of non-linear elements can be selected and the model parameters can be modified. The practice results show that the teaching platform can solve the above problems, and can intuitively analyze the system performance through the phase locus, with the advantages of simple operation and wide applicability. It can improve classroom teaching effect and teaching quality.