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基于主列筛选的动态测试传感器配置方法研究
引用本文:费庆国,李爱群,缪长青,张令弥.基于主列筛选的动态测试传感器配置方法研究[J].力学学报,2008,40(4):543-549.
作者姓名:费庆国  李爱群  缪长青  张令弥
作者单位:东南大学土木工程学院工程力学系 东南大学土木工程学院建筑工程系 东南大学土木工程学院建筑工程系 南京航空航天大学航空宇航学院结构工程与力学系
基金项目:国家高技术研究发展计划(863计划),国家自然科学基金,江苏省博士后科学基金
摘    要:动态测试是获取结构真实动态特性的重要手段之一,传感器配置对于保证动态测试数据 的信息量有着重要的影响. 尤其是对以试验模态分析为目标的动态测试,传感器配置对于模 态分辨率更是决定性因素. 在振型独立性的基础上,提出了一种基于主列筛选的传感器 配置方法. 与现有的逐步累积类或逐步消减类方法相比,该方法无需迭代,一次选择所有测 试自由度,计算量小. 为了量化比较传感器配置的效果,定义了4个度量指标. 采用卫星 天线模型进行了数值仿真,结果验证了基于主列筛选的传感器配置方法的有效性.

关 键 词:动态测试  传感器配置  振型独立性  主列筛选  数值仿真
收稿时间:2007-05-22
修稿时间:2007-10-08

VIBRATION SENSOR PLACEMENT METHOD BASED ON PRINCIPAL SUBSET SELECTION
Fei Qingguo,Li Aiqun,Miao Changqing,Zhang Lingmi.VIBRATION SENSOR PLACEMENT METHOD BASED ON PRINCIPAL SUBSET SELECTION[J].chinese journal of theoretical and applied mechanics,2008,40(4):543-549.
Authors:Fei Qingguo  Li Aiqun  Miao Changqing  Zhang Lingmi
Institution:Department of Engineering Mechanics, School of Civil Engineering, Southeast University, Nanjing 210096, China Department of Architectural Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China Department of Architectural Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China Department of Structural Engineering and Mechanics, School of Aerospace Engineering, Nanjing University of \\ Aeronautics and Astronautics, Nanjing 210016, China
Abstract:Dynamic testing is one of the major approaches to understand the dynamic properties of structures. Consequently, sensor placement has great effects on the collection of sufficient information in the testing, even to be the decisive factor for the experimental resolution in dynamic modal analysis. In the paper, a new sensor placement method is developed on the basis of mode independence and principal subset selection. The present method is uniterative and efficient for that the sensor positions are determined all at once. Moreover, four evaluation criteria were proposed and numerical simulations were performed with an antenna model to validate the feasibility of the developed method.
Keywords:Dynamic Testing  Sensor Placement  mode shape independence  Principal Subset Selection  Numerical Simulation  
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