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

Guo B, Gan W, Fang W - Sensors (Basel) (2015)

Bottom Line: 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.The feasibility and practicably of the model was verified by a field test.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, No.3 Shang Yuan Cun, Beijing 100044, China. byguo@bjtu.edu.cn.

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.

No MeSH data available.


Related in: MedlinePlus

The result of hand grip force for the whole trip.
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sensors-15-15755-f012: The result of hand grip force for the whole trip.

Mentions: The grip force result of the participant is shown in Figure 12. The tendency of the curve approximates the working conditions. The grip force level increased or decreased when the acceleration changed. There were some steep curves, which were marked with oval tags in the figure. It should be noted that the steep curves lagged behind the change of acceleration. The steep curves correspond to the reaction of the participant. When the acceleration changed, the participant needed time to react and needed time to move [23]. Hence, the delay happened. The steep curves’ changing pattern could help us to determine the variations of working conditions.


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

Guo B, Gan W, Fang W - Sensors (Basel) (2015)

The result of hand grip force for the whole trip.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4541853&req=5

sensors-15-15755-f012: The result of hand grip force for the whole trip.
Mentions: The grip force result of the participant is shown in Figure 12. The tendency of the curve approximates the working conditions. The grip force level increased or decreased when the acceleration changed. There were some steep curves, which were marked with oval tags in the figure. It should be noted that the steep curves lagged behind the change of acceleration. The steep curves correspond to the reaction of the participant. When the acceleration changed, the participant needed time to react and needed time to move [23]. Hence, the delay happened. The steep curves’ changing pattern could help us to determine the variations of working conditions.

Bottom Line: 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.The feasibility and practicably of the model was verified by a field test.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, No.3 Shang Yuan Cun, Beijing 100044, China. byguo@bjtu.edu.cn.

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.

No MeSH data available.


Related in: MedlinePlus