대한인간공학회지 (Journal of the Ergonomics Society of Korea)
- 제9권1호
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- Pages.29-33
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- 1990
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- 1229-1684(pISSN)
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- 2093-8462(eISSN)
안전모의 충격전달에 관한 이론적 고찰
A theoretical study on the shock-absorbing characteristic of safety helmet
초록
The need for the protection of workers in many industrial workstations has long been recognized, and many type of protective equipment have been devised. In many protective equipment designs, this study set limits to the safety helmet. The direct closed head impact problem was idealized as a linear-damped spring model. This study concerns what properties of helment should afford optimal protection in a direct closed head impact problem. The solution to the problem was achieved through analytic method and numerical computation. The answer was found in terms of 4 parameters : 1) rigidity of shell, 2) viscosity of shell, 3)rigidity of harness, 4) viscosity of harness. The choices are as follows 1) to reduce the rigidity value of harness as small as possible 2) to increase the viscosity value of harness as large as possible. 3) to select the rigidity value of shell sufficient for preventing a breakage.
키워드