We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Equivalent comfort contours for vertical seat vibration: effect of vibration magnitude and backrest inclination.
- Authors
Basri, Bazil; Griffin, Michael J
- Abstract
This study determined how backrest inclination and the frequency and magnitude of vertical seat vibration influence vibration discomfort. Subjects experienced vertical seat vibration at frequencies in the range 2.5-25 Hz at vibration magnitudes in the range 0.016-2.0 ms(-2) r.m.s. Equivalent comfort contours were determined with five backrest conditions: no backrest, and with a stationary backrest inclined at 0° (upright), 30°, 60° and 90°. Within all conditions, the frequency of greatest sensitivity to acceleration decreased with increasing vibration magnitude. Compared to an upright backrest, around the main resonance of the body, the vibration magnitudes required to cause similar discomfort were 100% greater with 60° and 90° backrest inclinations and 50% greater with a 30° backrest inclination. It is concluded that no single frequency weighting provides an accurate prediction of the discomfort caused by vertical seat vibration at all magnitudes and with all backrest conditions.
- Publication
Ergonomics, 2012, Vol 55, Issue 8, p909
- ISSN
1366-5847
- Publication type
Journal Article
- DOI
10.1080/00140139.2012.678390