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http://dx.doi.org/10.5143/JESK.2003.22.1.057

Assesment on the Transformation of Psychological Risk Images due to Development of Flight Skills  

Kim, Yeong-Gwan (충북대학교 안전공학과)
Im, Hyeon-Gyo (충북대학교 안전공학과)
Publication Information
Journal of the Ergonomics Society of Korea / v.22, no.1, 2003 , pp. 57-67 More about this Journal
Abstract
The resonance behaviour needs be understood to identify the mechanisms responsible for the dynamic characteristics of human body, to allow for the non-linearity when predicting the influence of seating dynamics. and to predict the adverse effects caused by various magnitudes of vibration. However, there are currently no known studies on the effect of vibration magnitude on the transmissibility to thoracic or lumbar spine of the seated person. despite low back pain(LBP) being the most common ailment associated with whole-body vibration. The objective of this paper is to develop a proper mathematical human model for LBP and musculoskeletal injury of the crew in a maritime vehicle. In this study, 7 degree-of-freedom including 2 non-rigid mass representing wobbling visceral and intestine mass, is proposed. Also. when compared with previously published experimental results, the model response was found to be well-matching. When exposed to various of vertical vibration, the human model shows appreciable non-linearity in its biodynamic responses. The relationships of resonance for LBP and musculoskeletal injury during whole-body vibration are also explained.
Keywords
low back pain; whole-body vibration; human modeling; musculoskeletal;
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