Optimal strain sensor placement for structural deformation reconstruction

被引：0

作者：

Cai Z. ^{[1
]}

Zhou J. ^{[1
]}

Tang B. ^{[2
]}

Li H. ^{[1
]}

Liu W. ^{[1
]}

机构：

[1] Key Laboratory of Electronic Equipment Structure Design, Ministry of Education, Xidian University, Xi'an

[2] Nanjing Research Institute of Electronic Technology, Nanjing

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2019年 / 38卷 / 14期

关键词：

Deformation reconstruction; Information redundancy; Optimal sensor placement; Strain sensor;

D O I：

10.13465/j.cnki.jvs.2019.14.012

中图分类号：

学科分类号：

摘要：

A two-stage strain sensor placement method for structural deformation reconstruction was proposed. Based on the strain-displacement transformation relationship, two criteria, information redundancy and reconstruction accuracy, were proposed. In the method, the initial sensor location set was determined using QR decomposition at the first stage. In the second step, taking the information redundancy as a restraint, the initial sensor location set was modified by adding sequentially new positions one by one to it to gradually minimize the reconstruction errors. The proposed method was applied to the experimental platform of a phased array antenna structure, and the results were evaluated by using four criteria. The experimental results show that the proposed method can not only improve reconstruction accuracy but also reduce information redundancy. © 2019, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：83 / 88and124

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