Wireless and wired strain gage studies

Using wireless strain gauge systems to collect data is a more effective and safer method compared to using wired strain gauge systems when monitoring the conditions of a structure. This is because the wireless strain gauge system does not require manual monitoring on-site. To test the accuracy and f...

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Main Author: Yong, Soon Lai
Other Authors: Pang Hock Lye, John
Format: Final Year Project
Language:English
Published: 2018
Subjects:
Online Access:http://hdl.handle.net/10356/74983
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-749832023-03-04T19:11:17Z Wireless and wired strain gage studies Yong, Soon Lai Pang Hock Lye, John School of Mechanical and Aerospace Engineering DRNTU::Engineering Using wireless strain gauge systems to collect data is a more effective and safer method compared to using wired strain gauge systems when monitoring the conditions of a structure. This is because the wireless strain gauge system does not require manual monitoring on-site. To test the accuracy and feasibility of the wireless system compared to wired system, the wireless strain gauge system was applied to monitor strain generated on the rail fastening clips by the train passing over the rail at around 70 km/hr. As the rail clips are the system that secure the rail track’s alignment and ensures that there is constant contact between the rail and sleeper. By identifying the critical areas on the clips, the strain gauge was mounted to determine the strain and stress conditions that leads to the failure of the clips. With a combination of laboratory testing and modelling, the strain experienced by the clips were predetermined before an on-site experiment was carried out. The strain data of the clips during installation and the cyclical stress and strain that acted on the clip were compared with the laboratory-determined one to determine the accuracy of the wireless strain gauge. The results showed that the installation process would burden the clips with a strain that is very close to the yield condition of the material. The cyclical strain experienced by the clips varies with the peak or non-peak periods of the train services. At the highest strain reading in the peak period recorded, the maximum principal stress exceeds the yield stress of the material. Bachelor of Engineering (Mechanical Engineering) 2018-05-25T07:37:33Z 2018-05-25T07:37:33Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/74983 en Nanyang Technological University 74 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Yong, Soon Lai
Wireless and wired strain gage studies
description Using wireless strain gauge systems to collect data is a more effective and safer method compared to using wired strain gauge systems when monitoring the conditions of a structure. This is because the wireless strain gauge system does not require manual monitoring on-site. To test the accuracy and feasibility of the wireless system compared to wired system, the wireless strain gauge system was applied to monitor strain generated on the rail fastening clips by the train passing over the rail at around 70 km/hr. As the rail clips are the system that secure the rail track’s alignment and ensures that there is constant contact between the rail and sleeper. By identifying the critical areas on the clips, the strain gauge was mounted to determine the strain and stress conditions that leads to the failure of the clips. With a combination of laboratory testing and modelling, the strain experienced by the clips were predetermined before an on-site experiment was carried out. The strain data of the clips during installation and the cyclical stress and strain that acted on the clip were compared with the laboratory-determined one to determine the accuracy of the wireless strain gauge. The results showed that the installation process would burden the clips with a strain that is very close to the yield condition of the material. The cyclical strain experienced by the clips varies with the peak or non-peak periods of the train services. At the highest strain reading in the peak period recorded, the maximum principal stress exceeds the yield stress of the material.
author2 Pang Hock Lye, John
author_facet Pang Hock Lye, John
Yong, Soon Lai
format Final Year Project
author Yong, Soon Lai
author_sort Yong, Soon Lai
title Wireless and wired strain gage studies
title_short Wireless and wired strain gage studies
title_full Wireless and wired strain gage studies
title_fullStr Wireless and wired strain gage studies
title_full_unstemmed Wireless and wired strain gage studies
title_sort wireless and wired strain gage studies
publishDate 2018
url http://hdl.handle.net/10356/74983
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