Development of a ride comfort evaluation method with a laboratory testing system

2011 ◽  
Vol 57 (2/3) ◽  
pp. 162 ◽  
Author(s):  
Ken Yuan Lin ◽  
Jiun Ren Hwang ◽  
Jung Ming Chang ◽  
Ji Liang Doong
Keyword(s):  
Laboratory Testing ◽  
Evaluation Method ◽  
Ride Comfort ◽  
Testing System ◽  
Comfort Evaluation ◽  
Ride Comfort Evaluation

2103 Visualized system of the ride comfort evaluation method for practical use

2015 ◽  
Vol 2015.24 (0) ◽  
pp. _2103-1_-_2103-5_
Author(s):  
Chizuru NAKAGAWA ◽  
Makoto SENDAI ◽  
Yoshihisa TAKAYAMA ◽  
Akihisa FUJISHIMA ◽  
Kenta YASAKA ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Ride Comfort ◽  
Comfort Evaluation ◽  
Ride Comfort Evaluation

Correlation of ride comfort evaluation methods for railway vehicles

2003 ◽  
Vol 217 (2) ◽  
pp. 73-88 ◽  
Author(s):  
Y-G Kim ◽  
H-B Kwon ◽  
S-W Kim ◽  
C-K Kim ◽  
T-W Kim
Keyword(s):  
Evaluation Method ◽  
Ride Comfort ◽  
Dynamic Performance ◽  
Evaluation Methods ◽  
Railway Vehicles ◽  
Comfort Evaluation ◽  
Vibration Model ◽  
Ride Comfort Evaluation ◽  
Abundant Data ◽  
Comfort Indices

Ride comfort is one of the most important dynamic performance characteristics of railway vehicles and is affected by various factors, such as vibration, acoustic sound, smell, temperature, visual stimuli, humidity and seat design. In general, vibration is known to be a major factor that affects ride comfort. There are many studies on methods for evaluating ride comfort in railway vehicles, and many standards or criteria have been developed and used in many countries. Most of the evaluation methods, however, recommend different evaluation methods and criteria, so users should carefully choose a ride comfort evaluation method and must examine whether it can be applied to their railway vehicles or not. The present study has looked at relationships between several evaluation methods using a vibration model resulting from frequency analysis and statistical analysis of acceleration measurements of railway vehicles. The present vibration model yields abundant data for correlation of the ride comfort indices, resulting in reliable relations between the ride comfort indices.

Ride Comfort Evaluation of Horizontal Vibration in Tractor-Trailer Considering Human Body Motion of Driver

2013 ◽  
Author(s):  
Yuichiro Hirose ◽  
Mitsuru Enomoto ◽  
Takashi Sasaki ◽  
Eiichi Yasuda ◽  
Masatoshi Hada
Keyword(s):  
Human Body ◽  
Ride Comfort ◽  
Body Motion ◽  
Horizontal Vibration ◽  
Comfort Evaluation ◽  
Ride Comfort Evaluation

Ride Comfort Evaluation Using Brain Activity in the Prefrontal Cortex Induced by Discomfort During Horizontal Vibration

2017 ◽  
Author(s):  
Kazunori Kaede ◽  
Yuta Arakawa ◽  
Keiichi Muramatsu ◽  
Keiichi Watanuki
Keyword(s):  
Prefrontal Cortex ◽  
Brain Function ◽  
Near Infrared ◽  
Ride Comfort ◽  
Brain Activity ◽  
Correlation Coefficients ◽  
Brain Activation ◽  
High Positive Correlation ◽  
Comfort Evaluation ◽  
Ride Comfort Evaluation

In this study, we measured brain activity using near-infrared spectroscopy (NIRS) when a person was feeling discomfort caused by vibrations. We used the variance in oxygenated hemoglobin (oxy-Hb) levels as an evaluation index. Correlation coefficients were derived from the results of brain function measurements and sensibility evaluation of discomfort using a questionnaire. As a result, a high negative correlation was observed between discomfort and both vibration and brain activation around the medial prefrontal cortex, and a high positive correlation was observed between discomfort and both vibration and brain activation around the lateral prefrontal cortex. This suggests the possibility of evaluating discomfort on the basis of brain activation.

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