Marine equipment strength analysis and innovative design team
Paper
基于逆虚拟激励法的垂向轨道不平顺功率谱识别
Release Time:2019-03-10
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Journal Article
First Author:
张健
Correspondence Author:
Zhao, Y.; State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China; email: yzhao@dlut.edu.cn
Co-author:
钟万勰,赵岩,张亚辉
Date of Publication:
2013-04-15
Journal:
计算力学学报
Included Journals:
Scopus、CSCD、ISTIC、PKU
Document Type:
J
Volume:
30
Issue:
2
Page Number:
187-191
ISSN:
1007-4708
Key Words:
随机振动;载荷识别;逆虚拟激励法;轨道不平顺
Abstract:
提出一种识别轨道垂向不平顺功率谱的新方法.采用定点激励的垂向车辆-板式轨道耦合动力学模型.车辆简化为多刚体模型,板式轨道考虑为3层梁模型,并通过线性轮轨力耦合车辆模型和轨道模型.以轴箱加速度作为测量对象,采用逆虚拟激励法识别垂向轨道不平顺的功率谱,并研究了测量误差和车辆运行速度对垂向轨道不平顺的识别精度的影响.数值结果表明,本文方法能够较为准确地识别垂向轨道不平顺功率谱,为列车运行环境载荷识别与评估提供了新的途径.
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