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Whole body vibration analysis for ride quality of LRT passenger

Abu Samah, Ahmad Abqari (2016) Whole body vibration analysis for ride quality of LRT passenger. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Ride comfort in railway transportation is quite complex and it depends on various dynamic performance criteria and subjective perception from the train passengers. Vibration discomfort from various factors such as vehicle conditions, track sections condition, and operating condition can lead to the poor ride comfort. In the current works, the whole body vibration exposure levels and ride comfort levels of LRT Ampang were measured and analyzed. Human vibration meter and accelerometer sensor were used to measure vibration magnitude in seating and standing position. BS EN 12299 standards were used as guideline to measure and evaluate ride comfort assessment NMV, NVD, and Nva of train passenger in three different routes. Data result shows high vibration magnitude in vertical axis which influences the overall result. Standing position shows high vibration exposure in all three routed tested. Ride comfort assessment of passenger in sitting and standing position shows the all three different routes exceed the uncomfortable limit of 3.02 m/s2, 3.6 m/s2, 3.48 m/s2 for standing and 2.71 m/s2, 3.03 m/s2, and 3.23 m/s2 for sitting position respectively. On the perception analysis, total 100 passengers were randomly selected for the questionnaire survey. As per questionnaire survey, 22% of the passenger reported having uncomfortable ride, whereas 23% had uncomfortable due to noise condition, 24% due to shaking condition and 31% passenger had uncomfortable ride comfort due to the seat design. Recommendations to improve current situation include upgrading interior condition of the train and review maintenance program of the problematic track section.

Item Type: Thesis (Masters)
Subjects: T Technology > TF Railroad engineering and operation
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 09 May 2017 07:33
Last Modified: 09 May 2017 07:33
URI: http://eprints.uthm.edu.my/id/eprint/9116
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