作者：蒋海波, 罗世辉, 董仲美

作者单位：西南交通大学牵引动力国家重点实验室, 四川成都 610031

关键词：轨道不平顺; 功率谱密度; 数值模拟

摘要：

概述了轨道不平顺的分类和描述方法。分析了估计功率谱密度的Blackman-Tukey法,并将Blackman-Tukey法进一步应用于自功率谱情况。根据功率谱密度与轨道随机不平顺的关系,提出了一种基于Blackman-Tukey法的轨道不平顺数值模拟方法。数值模拟试验表明这种模拟方法简洁、实用、有效。

Numerical simulation of track irregularities based on blackman-tukey

JIANG Hai-bo, LUO Shi-hui, DONG Zhong-mei

Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China

Abstract: This article briefly introduced the classification and description of track irregularity,analyzed the method of Blackman-Tukey for estimating power spectrum density and applied this method to self-power-spectrum.According to the relation of power spectrum density(PSD) and track random irregularity,a method of numerical simulation of track irrrgularities based on Blackman-Tukey was put forward.Simulation tests demonstrate this method is concise,effective and powerful.

Keywords: Track irregularity; Power spectrum density; Numerical simulation

2006, 32(4): 97-100  收稿日期: 2005-10-25;收到修改稿日期: 2006-1-8

基金项目: 

作者简介: 

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