Suggestion for Evaluation Methods of Ride Comfort at Low Frequencies

Koizumi, Takayuki; Tsujiuchi, Nobutaka; Okumura, Sogo; Yamada, Sachiko; Ninomiya, Jiro; Tajima, Takamitsu

doi:10.1007/978-1-4419-9834-7_12

Cited by 3 publications

(3 citation statements)

References 1 publication

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“…The results also show that when the perceived seat vibration was smaller, the riding comfort was considered to be better, and vice versa. This tendency was identical to what was found in previous studies that considered the riding comfort of other vehicles (1) - (12) .…”

Section: Journal Of System Design and Dynamicssupporting

confidence: 91%

“…From these results, it was found that the seat vibration is related to the riding comfort; in particular, when the seat vibration was small at low frequencies (less than 30 Hz), the bicycle was evaluated as more comfortable. Similar tendencies were reported by studies investigating the riding comfort of automobiles and motorcycles (1) - (12) .…”

Section: Relationship Between Vibration Acceleration Level Of Seat Ansupporting

confidence: 87%

“…There have been many studies (1) - (12) that have quantified improvements in the comfort of various vehicles, including automobiles, motorcycles, and ships. In these previous studies, it was reported that comfort was related to low-frequency vibration of the seat.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improvement of Bicycle Riding Comfort by Reduction of Seat Vibration

Kawagoe

Kawamura

2013

JSDD

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Bicycles are popular with the general public because of their low price and easy maintenance, and they will be an important vehicle in the future because of their low environmental load. Improving the comfort of the ride is one of the important factors that will lead to increased popularity. We attempted to increase comfort by reducing vibration, and evaluated the results with a subjective test. We determined that low frequency vibration of the seat greatly affected the comfort of the ride. We then performed a transfer path analysis (TPA) and a hammering test to investigate how the vibration characteristics of the bicycle affected the vibration of the seat. Through TPA, the rear of the bicycle frame was found to have a high influence on the seat vibration, and the vibration behavior was obtained by modal analysis. In order to reduce seat vibration, a spring was inserted in the front of the seat and, to increase the stiffness, a steel plate and bolts were attached to the rear of the frame. As a result, the seat vibration while riding was decreased by about 10 dB, and the comfort of the ride was greatly improved.

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Section: Journal Of System Design and Dynamicssupporting

confidence: 91%

Section: Relationship Between Vibration Acceleration Level Of Seat Ansupporting

confidence: 87%

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Improvement of Bicycle Riding Comfort by Reduction of Seat Vibration

Kawagoe

Kawamura

2013

JSDD

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Joint discomfort human performance measure for driver posture prediction: some insights

Gragg

Howard

Cloutier

et al. 2012

IJHFMS

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Analytical Evaluation of Ride Comfort on Asphalt Concrete Pavements

Wang

Easa

2016

Journal of Testing and Evaluation

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Ride comfort is very important in the performance evaluation of highway concrete pavements. In this paper, three indices were integrated and used for the evaluation of ride comfort on asphalt concrete pavements: (1) weighted root mean square of the acceleration, (2) root mean square of the squared differences (a measure of heart rate variability), and (3) weighted value of subjective ride comfort. The study involved collection of comprehensive experimental data for 89 highway sections in China that included pavement roughness, ride speed, acceleration, dynamic friction, psychological and physiological data, pavement condition, and questionnaires. Indices and thresholds for acceleration, heart rate variability, and subjective evaluation of ride comfort were developed. In addition, quantitative relations between ride comfort and both pavement roughness and ride speed were established for two specific ranges of dynamic friction. Graphical relations among ride comfort, pavement roughness, and ride speed were established. These relations provide useful guidelines for ride comfort evaluation and highway maintenance management.

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Suggestion for Evaluation Methods of Ride Comfort at Low Frequencies

Cited by 3 publications

References 1 publication

Improvement of Bicycle Riding Comfort by Reduction of Seat Vibration

Improvement of Bicycle Riding Comfort by Reduction of Seat Vibration

Joint discomfort human performance measure for driver posture prediction: some insights

Analytical Evaluation of Ride Comfort on Asphalt Concrete Pavements

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