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Sensors 2015, 15(7), 15755-15771; doi:10.3390/s150715755

Using Hand Grip Force as a Correlate of Longitudinal Acceleration Comfort for Rapid Transit Trains

State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, No.3 Shang Yuan Cun, Beijing 100044, China
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Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Received: 22 May 2015 / Revised: 23 June 2015 / Accepted: 29 June 2015 / Published: 2 July 2015
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [2203 KB, uploaded 2 July 2015]   |  

Abstract

Longitudinal acceleration comfort is one of the essential metrics used to evaluate the ride comfort of train. The aim of this study was to investigate the effectiveness of using hand grip force as a correlate of longitudinal acceleration comfort of rapid transit trains. In the paper, a motion simulation system was set up and a two-stage experiment was designed to investigate the role of the grip force on the longitudinal comfort of rapid transit trains. The results of the experiment show that the incremental grip force was linearly correlated with the longitudinal acceleration value, while the incremental grip force had no correlation with the direction of the longitudinal acceleration vector. The results also show that the effects of incremental grip force and acceleration duration on the longitudinal comfort of rapid transit trains were significant. Based on multiple regression analysis, a step function model was established to predict the longitudinal comfort of rapid transit trains using the incremental grip force and the acceleration duration. The feasibility and practicably of the model was verified by a field test. Furthermore, a comparative analysis shows that the motion simulation system and the grip force based model were valid to support the laboratory studies on the longitudinal comfort of rapid transit trains. View Full-Text
Keywords: hand grip force; longitudinal acceleration comfort; rapid transit train; motion simulation system hand grip force; longitudinal acceleration comfort; rapid transit train; motion simulation system
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Guo, B.; Gan, W.; Fang, W. Using Hand Grip Force as a Correlate of Longitudinal Acceleration Comfort for Rapid Transit Trains. Sensors 2015, 15, 15755-15771.

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