Host: The Japan Society of Mechanical Engineers
Name : Dynamics and Design Conference 2018
Date : August 28, 2018 - August 31, 2018
The sick and wounded who is conveyed to a hospital is conveyed with a stretcher from the spot to an ambulance, and fixed on vibration proof frame which reduces driving vibration in an ambulance to hospital. There is possibility of the sickness and wound aggravation in them by driving vibration. However, in question to ambulance crew, some people answered that vibration proof frame is ineffective. The purpose of this study is an evaluation of the vibration reduction performance of vibration proof frame. We evaluate acceleration reduction performance by graph of acceleration and acceleration PSD, max acceleration, max acceleration decreasing rate, acceleration RMS, acceleration RMS decreasing rate. The first experiment is a vertical vibration experiment using the vibrating table. By the result of this experiment, max acceleration is decreased at the head and the chest, but it is amplified at the head. Acceleration RMS is amplified at the head, the chest, and the foot. The second experiment is a driving experiment on road in Fukui city area by using a car. By the result of this experiment. Vertical max acceleration is decreased at the head, but it is amplified at the foot. Vertical acceleration RMS is amplified at the head and the foot. Front/back max acceleration and acceleration RMS is amplified at the head and foot.
