基于混沌多项式展开法的线束串扰统计模型

发布时间：2018-01-16 08:27

本文关键词：基于混沌多项式展开法的线束串扰统计模型　出处：《吉林大学学报(工学版)》2017年05期 　论文类型：期刊论文

【摘要】：针对线束导线在实际情况中为非确定性几何布置的这一问题,提出了一种基于混沌多项式展开法的线束串扰统计分析方法。该方法根据线束导线位置变量的分布类型选取相应的正交多项式对线束导线分布参数进行展开,结合边界条件,采用模式理论对基于混沌多项式展开的多导体传输线方程扩展形式进行求解,进而得到电压和电流向量的混沌多项式展开表达式,并利用混沌多项式展开法的相关性质得到表征线束串扰统计特征的相关参数。通过与传统的蒙特卡法进行对比可知,该方法在保证计算结果准确可靠的同时,计算效率也得到了大幅度的提高,从而实现复杂系统线束电磁兼容性能的高效预测。
[Abstract]:This paper aims at the problem that the conductor of the wire harness is not deterministic geometric arrangement in the actual situation. A statistical analysis method based on chaotic polynomial expansion method for bundle crosstalk is proposed, in which the corresponding orthogonal polynomials are selected according to the distribution type of conductor location variables. Combined with boundary conditions, the expansion form of multi-conductor transmission line equation based on chaotic polynomial expansion is solved by mode theory, and then the expression of chaotic polynomial expansion of voltage and current vector is obtained. By using the correlation properties of the chaotic polynomial expansion method, the correlation parameters of the statistical characteristics of crosstalk are obtained. Compared with the traditional Monte Carlo method, this method can ensure the accuracy and reliability of the calculation results at the same time. The computational efficiency has also been greatly improved, thus realizing the efficient prediction of EMC performance of wire harness in complex system.
【作者单位】：吉林大学仪器科学与电气工程学院;吉林大学汽车仿真与控制国家重点实验室;中国第一汽车股份有限公司技术中心;
【基金】：吉林省基础研究计划基金项目(20150101029JC)
【分类号】：TM50;TN03
【正文快照】： electromagnetic compatibility of cable bundle in complex system has realized.0引言随着现代工业的不断发展,越来越多的电气电子设备被广泛应用于飞机、舰艇、汽车等复杂系统中。线束作为系统中电路网络主体,连接着各个电气电子部件,并使之发挥功效。但其也为干扰信号的

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