Proposal of Comprehensive Evaluation Index of Complex Damage Caused by Falling of Human body model and Effectiveness of Protection Tools

Abstract

We propose a comprehensive evaluation index to indicate the severity of multiple injuries caused by falls etc. to the human body, and show the effectiveness of fall protection tools using the index. The falling test was carried out at the Japan Automobile Research Institute (JARI) using a human body dummy. In the human body dummy, acceleration sensors are installed at the head, chest and waist, and force and moment measurement sensors are installed at the neck, and analysis is performed based on physical quantity data at falling. The data of these physical quantities are continuous, therefore we define the degree of damage (AIS) of the continuous quantity on each part as a continuous function of the observed data. The survival probability Ps are calculated in the case with various protectors such as helmets and jackets and the effectiveness of the protective equipment is shown.