The Dynamic Characteristics of Automobile Seats with Human Occupants 770249
The dynamic characteristics of seated humans were measured in a laboratory environment. The seat/occupant system was excited vertically with random vibration. Relevant transfer functions were computed using real time acceleration signals fed to a Fourier Analyzer. The transfer functions describe the seat response, the human response, and the combined response in the frequency range from 2 to 20 Hz. Of possible significance in ride quality studies are the natural modes of vibration which were identified; these include a 3.0 Hz “head-nod” mode, a 3.9 Hz seat vertical mode, a 5.6 Hz human response mode, and a seat “back-slap” mode occurring at 11 Hz.
Citation: Varterasian, J. and Thompson, R., "The Dynamic Characteristics of Automobile Seats with Human Occupants," SAE Technical Paper 770249, 1977, https://doi.org/10.4271/770249. Download Citation
Author(s):
John H. Varterasian, Richard R. Thompson
Affiliated:
Research Labs., General Motors Corp.
Pages: 10
Event:
1977 International Automotive Engineering Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1977 Transactions-V86-A
Related Topics:
Seats and seating
Vehicle occupants
Vibration
Vehicle acceleration
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