This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Threshold of Perception for Whole-Body Seated Vibration
Technical Paper
2005-01-2476
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A study was done to measure seated vibration perception thresholds in the vertical, lateral, and longitudinal directions at 2, 4, 8, 16, 32, 64, and 96 Hz. 4 male and 2 female subjects were tested. The testing was done on the Ford Vehicle Vibration Simulator (VVS), using a rigid seat with a backrest. A 3-down, 1-up adaptive Levitt algorithm was employed. Bandlimited noise prompting was done over headphones, with subjects eyes closed during stimuli, eliminating non-vibration cues. Subjects'feet moved with the seat at 2 & 4 Hz, eliminating leg motion cues. Test order was randomized over subjects. Thresholds were near 0.01 m/s/s at low frequency for all axes. This is lower than the literature for vertical, probably due to the moving footrest. Lateral thresholds surpassed 0.04 m/s/s around 32 Hz and then dropped down somewhat. Longitudinal vibration had a lower amplitude peak vs. frequency, probably due to backrest input. Vertical showed a peak at 32 Hz. 96 Hz thresholds were generally lower than the values in the literature.
Recommended Content
Authors
Citation
Pielemeier, W., Meier, R., and Greenberg, J., "Threshold of Perception for Whole-Body Seated Vibration," SAE Technical Paper 2005-01-2476, 2005, https://doi.org/10.4271/2005-01-2476.Also In
References
- Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration - Part 1: General Requirements American National Standards Institute 2002
- Griffin, M.J. 1990 Handbook of Human Vibration Academic Press London
- Gundry, A.J. 1978 Thresholds of perception for periodic linear motion Aviation, Space and Environmental Medicine 49 679 686
- Hanes, R.M. 1970 Human sensitivity to whole-body vibration in urban transportation systems: at literature review Transportation Programs Report The Johns Hopkins University Maryland
- Howarth, H.V.C. 1989 Annoyance caused by railway vibration and noise in buildings University of Southampton
- Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration - Part 1: General Requirements International Standards Organization 1997
- Levitt, H. 1971 “Transformed Up-Down Methods in Psychophysics,” J. Acoust. Soc. Am. 49 2 467 477
- McKay, J.R. 1971 Human perception of whole body vibration. Memorandum No 435. Institute of Sound and Vibration Research University of Southampton
- Parsons, K.C. Griffin, M.J. 1988 Whole-body vibration perception thresholds Journal of Sound and Vibration 121 237 258
- Pielemeier, W.J. et al. 2003 The Effect of Training on Whole-Body Seated Vertical Vibration Detection Testing using the Levitt Algorithm 2003 SAE NVH Conference Proceedings Traverse City, MI