水面落下衝撃に関する研究 : 第1報:人体模型による実験

概要

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We consider that at the critical moment of distress, escape from the abandoned ship is done individually or collectively. The studies were tried to obtain shock deceleration and its duration time in the case of individual escape. The experiments were made by human model using the life-saving appliances drop testing tank of Ship Research Institute. The resulrs are summarized as folllows: (1) The fall-time can be obtained by free fall calculation from the heights under 8 meters, but in case of higher heights it is necessary to consider the condition of the air resistance. (2) The posture of falling body is scarcely changed through the fall. (3) The deceleration of slant fall is 10 times that of head-first or feet-first fall. (4) The shock duration time in case of head-first or feet-first fall is 100-300 milliseconds, and that of slant fall is 15-40 milliseconds. (5) Further study is expected for the determination of safety fall height limit, because it is necessary the medical research for human tolerances.
独立行政法人海上技術安全研究所の論文
1972-07-31