自由落下式救命艇の座席にクッション材を使った場合の人体に対する衝撃緩和効果について

概要

論文の詳細を見る
The shock absorbing effects and the evaluating methods by using cushion sheets on a seat in a free fall life-boat were investigated experimentally. The following results are obtained. (1) The shock absorbing effects on an actual free fall life-boat is estimated by the performances of the absorbing material and the profiles of shock waves acting on the boat. (2) The effects of shock absorbing material is depend on the spectra of the shock wave profiles. In the case of 20 to 30mm thick soft cushion sheets, the shock absorbing effects is observed when the frequency is higher that 10Hz, and it is estimated that the peak values of a shock wave measured in an actual boat will be reduced by 20%. (3) The shock absorbing characteristics of a dummy and the cushion sheets are remarkably depend on the magnitude of the shock, so that the tests should be performed on around the actual shock level acting on boats.
1998-09-25