NDLI: Difference Thresholds for the Perception of Sinusoidal Vertical Stimuli of Whole-Body Vibrations in Ranges of Amplitude and Frequency Relevant to Ride Comfort

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Difference Thresholds for the Perception of Sinusoidal Vertical Stimuli of Whole-Body Vibrations in Ranges of Amplitude and Frequency Relevant to Ride Comfort

Content Provider	MDPI
Author	Mark, Lünebach Festa, Maurizio Durm, Tiemo Gauterin, Frank
Copyright Year	2020
Description	Minor differences in the vibration characteristics of a vehicle may greatly influence the comfort experienced by the driver. Therefore, such characteristics are significant in the process of vehicle development. In this experimental study, just-noticeable differences were determined for sinusoidal vertical whole-body vibrations at the frequencies 1.3 Hz and 6.0 Hz, and for the vibration amplitudes 0.2 m/s², 0.5 m/s² and 1.2 m/s². The stimulation set up was realised using a test rig constituting a seating position similar to that in a real vehicle environment. A transformed one-up-three-down method, in conjunction with a two-interval forced choice procedure, was used to determine difference thresholds, in accordance with Weber’s Law, for 14 test subjects. Median relative difference thresholds in the range of 6.7% to 11.0% were observed, and were examined for statistical significance (α < 0.05) and practical importance on amplitude and frequency, with respect to this law. The results showed a frequency-dependence at the lowest vibration amplitude and an amplitude-dependence for both frequencies from a statistical point of view. However, the amplitude-dependence at 6.0 Hz was considered as negligible for practical use.
Ending Page	131
Page Count	16
Starting Page	116
e-ISSN	2571631X
DOI	10.3390/vibration3020010
Journal	Vibration
Issue Number	2
Volume Number	3
Language	English
Publisher	MDPI
Publisher Date	2020-06-03
Access Restriction	Open
Subject Keyword	Vibration Transportation Science and Technology Nvh Human Factors Whole-body Vibrations Difference Thresholds Vehicle Motion Ride Comfort Weber's Law
Content Type	Text
Resource Type	Article

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