基于距离系数-有效独立法的大型空间结构传感器优化布置

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (16) : 13-18.

论文

基于距离系数-有效独立法的大型空间结构传感器优化布置

何龙军，练继建，马斌，王海军

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Optimal sensor placement for large space structuresbased on distance coefficient-effective independence method

HE Long-jun, LIAN Ji-jian, MA Bin, WANG Hai-jun

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摘要

为解决利用有效独立法进行大型空间结构传感器优化布置时产生的信息冗余问题，提出了以距离系数修正信息矩阵的距离系数-有效独立法。将该方法应用于某高拱坝的传感器优化布置，并与现有的三种优化布置方法得出的方案进行全面的比较。结果表明：距离系数-有效独立法应用于精细网格划分的大型空间结构的传感器优化布置时，可有效避免测点间的信息冗余问题并保证模态识别的精度，是一种适合大型空间结构的较为理想的传感器优化布置算法。

Abstract

The distance coefficient-effective independence method, which applies distance coefficient to weigh the Fisher information matrix, is proposed to solve the information redundancy of effective independence method for optimal sensor placement in large space structures. Further, the proposed technique is applied to a high arch dam, and the obtained scheme is compared with the schemes of three existing methods systematically. The distance coefficient-effective independence method can avoid the information redundancy effectively and ensure the accuracy of modal identification for the optimal sensor placement of large space structures with refined mesh. Therefore, it is an ideal method for optimal sensor placement of large space structures.

导出引用

何龙军;练继建;马斌;王海军. 基于距离系数-有效独立法的大型空间结构传感器优化布置[J]. 振动与冲击, 2013, 32(16): 13-18

HE Long-jun;LIAN Ji-jian;MA Bin;WANG Hai-jun. Optimal sensor placement for large space structuresbased on distance coefficient-effective independence method[J]. Journal of Vibration and Shock, 2013, 32(16): 13-18