An Optimal Strain Gauge Layout Design for the Measurement of Truss Structures

Author:

Kyung JungHyun1,Eun Hee-Chang1ORCID

Affiliation:

1. Department of Architectural Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea

Abstract

Sensor measurements diagnose and evaluate the structural health state. A sensor configuration with a limited number of sensors must be designed to monitor sufficient information about the structural health state. The diagnosis of a truss structure composed of axial members can begin with a measurement by the strain gauges attached to the truss members or by the accelerometers and displacement sensors at the nodes. This study considered the layout design of the displacement sensors at the nodes for the truss structure by using the effective independence (EI) method based on the mode shapes. The validity of the optimal sensor placement (OSP) methods depending on their synthesis with the Guyan method was investigated by the mode shape’s data expansion. The Guyan reduction technique rarely affected the final sensor design. A modified EI algorithm based on the strain mode shape of the truss members was presented. A numerical example was analyzed, showing that the sensor placements were affected depending on the displacement sensors and strain gauges. Numerical examples illustrated that the strain-based EI method without the Guyan reduction method has the advantage of reducing the number of sensors and providing more data related with the displacements at the nodes. The measurement sensor should be selected when considering structural behavior, as it is crucial.

Funder

National Research Foundation of Korea

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry

Reference36 articles.

1. Pozo, F., Tibaduiza, D.A., and Vidal, Y. (2021). Sensors for structural health monitoring and condition monitoring. Sensors, 21.

2. Optimal sensor placement for a truss structure using particle swam optimization;Zhao;Int. J. Acoust. Vib.,2017

3. optimal sensor placement of bridge structure based on sensitivity-effective independence method;Chai;IET Circuits Devices Syst.,2022

4. Tobias, D.H., Foutch, D.H., and Choros, J. (1993). Investigation of an Open Deck Through-Truss Railway Bridge: Work Train Tests, AAR Research Center. Association of American Railroads, Report No. R-830.

5. On the Optimal Sensor Placement Techniques for a Bridge Structure;Meo;Eng. Struct.,2005

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3