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车辆随机振动功率谱分析的虚拟激励法概述

赵岩 张亚辉 林家浩

赵岩, 张亚辉, 林家浩. 车辆随机振动功率谱分析的虚拟激励法概述[J]. 应用数学和力学, 2013, 34(2): 107-117. doi: 10.3879/j.issn.1000-0887.2013.02.001
引用本文: 赵岩, 张亚辉, 林家浩. 车辆随机振动功率谱分析的虚拟激励法概述[J]. 应用数学和力学, 2013, 34(2): 107-117. doi: 10.3879/j.issn.1000-0887.2013.02.001
ZHAO Yan, ZHANG Ya-hui, LIN Jia-hao. Summary on the PseudoExcitation Method for Vehicle Random Vibration PSD Analysis[J]. Applied Mathematics and Mechanics, 2013, 34(2): 107-117. doi: 10.3879/j.issn.1000-0887.2013.02.001
Citation: ZHAO Yan, ZHANG Ya-hui, LIN Jia-hao. Summary on the PseudoExcitation Method for Vehicle Random Vibration PSD Analysis[J]. Applied Mathematics and Mechanics, 2013, 34(2): 107-117. doi: 10.3879/j.issn.1000-0887.2013.02.001

车辆随机振动功率谱分析的虚拟激励法概述

doi: 10.3879/j.issn.1000-0887.2013.02.001
基金项目: 973国家重点基础研究计划,“复杂装备研发数字化工具中的计算力学和多场耦合若干前沿问题”课题(2010CB832704);“十一五”国家科技支撑计划,“中国高速列车关键技术研究及装备研制”资助项目(2009BAG12A04);国家自然科学基金“多点地震作用下车桥耦合系统随机动力性态研究”资助项目(11172056)
详细信息
    作者简介:

    赵岩(1974—),男,吉林公主岭人,副教授(通讯作者.+86-411-84706337; E-mail: yzhao@dlut.edu.cn);林家浩,教授(E-mail: jhlin@dlut.edu.cn).

  • 中图分类号: O324;TH113.1

Summary on the PseudoExcitation Method for Vehicle Random Vibration PSD Analysis

  • 摘要: 车辆受到路面或轨道不平度激励会产生随机振动,对这类随机振动进行快速有效的分析对于提高车辆性能具有非常重要的意义.而这类随机振动的分析,历来都只能将车辆模拟为自由度很低的弹簧质量体系,其计算精度难于保证.特别在需要计算疲劳应力集中的情况,需要使用网格很密的有限元模型,计算困难就更为突出.此外,在考虑多个车轮受到路面随机激励时,就更难应用效率相对较高的频域分析来计算车辆的随机振动;而只能借助于一条或几条路面不平度样本,让车轮在上面移动,借助数值积分工具而粗略地得到随机响应的统计特性.效率很低而且精度不高.虚拟激励法对于克服上述困难具有很好的效果;目前已在我国的汽车、火车、磁浮列车等领域获得日益广泛的应用.该文对此作一概略的叙述.
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