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A Seat Ride Evaluation Method for Transient Vibrations
Technical Paper
2000-01-0641
ISSN: 0148-7191, e-ISSN: 2688-3627
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Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
transient vibrations caused by a sudden change in the road surface under steady-state random vibration subject the human body to unpleasant sensations. However, it is very difficult to examine each part of the seat structure and physical properties because the measurement position of acceleration sensors with the conventional evaluation method are limited to the hipbone on the seat cushion and lumbar on the seat back.
In this paper, in order to evaluate three kinds of driver seats having different structures and physical properties, we dynamically measured body pressure distribution, which are mainly made with static measurements, on a pavement inducing transient vibrations. We analyzed each part of measurement data by means of a new human engineering index, which is body pressure change rate over time. We next investigated the correlation between the analyzed data and the subjective evaluation, and found the mechanism causing unpleasant sensations during transient vibrations. The results of our successful research allow making improvements in each part of the seat structure and physical properties.
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Authors
Citation
Uenishi, K., Fujihashi, K., and Imai, H., "A Seat Ride Evaluation Method for Transient Vibrations," SAE Technical Paper 2000-01-0641, 2000, https://doi.org/10.4271/2000-01-0641.Also In
Human Factors in 2000: Driving, Lighting, Seating Comfort, and Harmony in Vehicle Systems
Number: SP-1539; Published: 2000-03-06
Number: SP-1539; Published: 2000-03-06
References
- ISO standard 2631
- British standard 6841
- Ohmori, H. Development of Riding Evaluation System for Joint Road in USA Freeway Honda R&D Technical Review 9 1997
- Akatsu, Y. An evaluation Method of Improving Ride Comfort Journal of Society of Automotive Engineers of Japan 52 3 1998