Optimal sensor placement for structural health monitoring based on multiple optimization strategies
Optimal sensor placement for structural health monitoring based on multiple optimization strategies
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DOI：
10.1002/tal.712
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发表时间：
2011-11-01
影响因子：
2.4
通讯作者：
Gu, Ming
中科院分区：
文献类型：
--
作者：
Yi, Ting-Hua;Li, Hong-Nan;Gu, Ming
仔细选择和放置传感器是构建和实施有效的结构健康监测系统的关键问题。提出了一种基于多种优化方法的传感器最优布置策略（OSPS）。首先通过QR分解得到传感器的初始位置。然后，以模态保证准则矩阵中非对角元素的最小化作为传感器配置效用的度量，采用前向和后向顺序传感器布局算法共同确定传感器的数量。最后，传感器的位置确定的双重结构编码的广义遗传算法（GGA）。以科学计算软件MATLAB（MathWorks，Natick，MA，USA）为平台，基于命令行编译和图形用户界面辅助图形界面设计，开发了一个作为黑盒工作的OSPS工具箱。详细介绍了该工具箱的特点和操作方法，并基于开发的工具箱对世界最高的电视塔（广州新电视塔）进行了OSP方案比选。结果表明，该方法是有效的，软件包界面友好，功能丰富，可扩展性好，操作简单，易于在实际工程中应用。版权所有（C）2011约翰威利父子有限公司
Careful selection and placement of sensors are the critical issue in the construction and implementation of an effective structural health monitoring system. A hybrid method termed the optimal sensor placement strategy (OSPS) based on multiple optimization methods is proposed in this paper. The initial sensor placement is firstly obtained by the QR factorization. Then, using the minimization of the off-diagonal elements in the modal assurance criterion matrix as a measure of the utility of a sensor configuration, the quantity of the sensors is determined by the forward and backward sequential sensor placement algorithm together. Finally, the locations of the sensor are determined by the dual-structure coding-based generalized genetic algorithm (GGA). Taking the scientific calculation software MATLAB (MathWorks, Natick, MA, USA) as a platform, an OSPS toolbox, which is working as a black box, is developed based on the command-line compiling and graphical user interface-aided graphical interface design. The characteristic and operation method of the toolbox are introduced in detail, and the scheme selection of the OSP is carried out on the world's tallest TV tower (Guangzhou New TV Tower) based on the developed toolbox. The results indicate that the proposed method is effective and the software package has a friendly interface, plenty of functions, good expansibility and is easy to operate, which can be easily applied in practical engineering. Copyright (C) 2011 John Wiley & Sons, Ltd.