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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 standing platform setup.
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sensors-15-15755-f002: The standing platform setup.

Mentions: The standing platform was made of three components: a steel frame, a support plate and a stainless steel tube. The steel frame was the load bearing structure of the platform. The support plate was a piece of bamboo plywood that participants could stand on. The length and the width of the plate were 1200 mm and 600 mm, respectively. The stainless steel tube, which was welded on the steel frame as a vertical handrail, was 38 mm in diameter. The diameter was as same as the diameter of real handrail on trains. The plate was screwed onto the steel frame. The standing platform was bolted to the upper frame of the motion system. The standing platform setup is shown in Figure 2.


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 standing platform setup.
© Copyright Policy
Related In: Results  -  Collection

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

sensors-15-15755-f002: The standing platform setup.
Mentions: The standing platform was made of three components: a steel frame, a support plate and a stainless steel tube. The steel frame was the load bearing structure of the platform. The support plate was a piece of bamboo plywood that participants could stand on. The length and the width of the plate were 1200 mm and 600 mm, respectively. The stainless steel tube, which was welded on the steel frame as a vertical handrail, was 38 mm in diameter. The diameter was as same as the diameter of real handrail on trains. The plate was screwed onto the steel frame. The standing platform was bolted to the upper frame of the motion system. The standing platform setup is shown in Figure 2.

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