摘要
将基于Fisher矩阵的有效独立法(EI)应用到高铁受电弓传感器优化布置当中,分别采用两种不同优化思想得到两种不同的优化方案。首先,运用EI法分别对受电弓主要组成部件逐一优化布置;其次,运用该法直接对其整体进行优化布置;最后,利用四种评价准则对本文提出的两种方案和均匀布置方案进行验证和对比分析,结果表明EI法在结构复杂的受电弓传感器优化布置当中是有效可靠的,且逐一对结构主要部件优化的思想获得模态向量线性独立性更好、模态信息量更大、布设位置更加精确,该思想在工程应用当中具有一定的指导意义。
The effective independent method(EI)based on Fisher matrix is applied to optimal sensor placement of pantograph of high-speed railway.Two different optimization methods are adopted to optimize the layout.Firstly,the main components of pantograph are optimized respectively by EI method.Secondly,layout of the pantograph as a whole is optimized directly by this method.Lastly,these two optimization schemes are analyzed and compared by four evaluation criteria.The results show that the EI method is effective and reliable in the optimization of pantograph sensor placement with complex structure.The modal vectors obtained by the optimization of the main components one by one shows the advantages of better linear independence,larger modal information and more accurate placement of sensor.This method is of guiding significance in engineering application.
作者
管林挺
马思群
赵光伟
田小龙
GUAN Linting;MA Siqun;ZHAO Guangwei;TIAN Xiaolong(School of traffic and Transportation Engineering,Dalian Jiaotong University,Dalian 116028,China;CRRC QINGDAO SIFANG CO.,LTD.,Qingdao 266111,China;Zhengzhou Railway Administration,Zhengzhou 454493,China)
出处
《机械》
2018年第6期14-19,46,共7页
Machinery
基金
国家自然科学基金项目(51405057)--角焊缝剪切强度理论与尺寸设计准则研究
2017年辽宁省自然科学基金指导计划项目(20170540121)--焊后热处理的应力释放机理与参数优化研究
关键词
有效独立法
传感器优化布置
评价准则
高铁受电弓
effective independent method
optimal sensor placement
evaluation criteria
pantograph of high-speed railway
