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Document ID (ISN)112524
CIS number 12-0283
ISSN - Serial title 1080-3548 - International Journal of Occupational Safety and Ergonomics
Year 2011
Convention or series no.
Author(s) Ayari H., Thomas M., Doré S.
Title A design of experiments for statistically predicting risk of adverse health effects on drivers exposed to vertical vibrations
Bibliographic information 2011, Vol.17, No.3, p.221-232. Illus. 28 ref.
Internet access A_design_of_experiments_[INTERNET_FREE_ACCESS] [in English]
Abstract An injury risk factor (IRF), which indicates the risk of adverse health effect to lumbar column arising from mechanical vibrations, is developed. Experiments were conducted to measure acceleration levels at the seat of drivers, posture, morphology, density, damping rate and body mass as independent variables. A parametric finite-element model of the lumbar rachis was developed. It is shown that the IRF increases with ageing and an IRF of 30% is proposed as a threshold for fatigue purposes. This level is reached if a peak acceleration level greater than 3 m/s² is applied to a light (55 kg) and an old driver with a low bone density and a damping rate of 20%. This vibration threshold must be reduced to 2.7 m/s² if the driver's weight increases to 75 kg and to 2 m/s² if the driver is heavy (98 kg). Implications of these findings are discussed.
Descriptors (primary) direction of vibration; vibration acceleration; whole-body vibration; drivers seats; drivers; permissible levels
Descriptors (secondary) spinal column; body weight; body mechanics; mathematical models; age-linked differences
Document type D - Periodical articles
Subject(s) Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Vibration