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 Province | Canada |
Subject(s) |
Ergonomics and work organization
|
Broad subject area(s) |
Physiology, ergonomics
|
Browse category(ies) |
Work posture Accident research Vibration
|