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Base de datos CISDOC

ID (ISN) del documento112524
Número CIS 12-0283
ISSN - Título de la serie 1080-3548 - International Journal of Occupational Safety and Ergonomics
Año 2011
Número de serie
Autor(es) Ayari H., Thomas M., Doré S.
Título A design of experiments for statistically predicting risk of adverse health effects on drivers exposed to vertical vibrations
Información bibliográfica 2011, Vol.17, No.3, p.221-232. Illus. 28 ref.
Acceso Internet A_design_of_experiments_[INTERNET_FREE_ACCESS] [en inglés]
Resumen 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.
Descriptores (primarios) sentido de las vibraciones; aceleración de la vibración; vibración en todo el cuerpo; asientos del conductor; conductores; límites admisibles
Descriptores (secundarios) columna vertebral; peso corporal; mecánica humana; modelos matemáticos; diferencias por la edad
Tipo de documento D - Artículos periódicos
Tema(s) Ruido, audición, vibraciones
Broad subject area(s) Riesgos físicos
Navegación por categoria(s) Vibration