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Document ID (ISN)75435
CIS number 00-1471
ISSN - Serial title 0169-8141 - International Journal of Industrial Ergonomics
Year 1999
Convention or series no.
Author(s) Wu X., Rakheja S., Boileau P.E.
Title Distribution of human-seat interface pressure on a soft automotive seat under vertical vibration
Bibliographic information Sep. 1999, Vol.24, No.5, p.545-557. Illus. 16 ref.
Abstract Distribution of contact pressure and forces between sitting human subjects and a visco-elastic seat was experimentally investigated under conditions of vertical vibration. The human-seat interface pressure data acquired with a total of six subjects is analysed to illustrate the influence of magnitude and frequency of vibration excitations on the maximum ischium pressure, effective contact area and contact force distribution. The results are discussed to illustrate the influence of seated posture and the subject build on the contact force and area. Alternatively, the contour maps of static pressure distribution, and time histories of the ischium pressure and the effective contact area measured under vibration are compared with those determined while using a rigid seat. The results show that the maximum variations in the ischium pressure and the effective contact area on a soft seat occur near the resonant frequency of the coupled human-seat system (2.5-3.0Hz). The maximum ischium pressure and effective contact area on a softseat tend to increase considerably with increase in the magnitude of vibration excitation.
Descriptors (primary) whole-body vibration; comfort assessment; drivers seats; sitting posture
Descriptors (secondary) vibration acceleration; direction of vibration; vibration transmission; pressure measurement; individual susceptibility; pelvis
Document type D - Periodical articles
Country / State or ProvinceCanada
Subject(s) Ergonomics and work organization
Broad subject area(s) Physiology, ergonomics
Browse category(ies) Work posture
Accident research
Vibration