Optimum Design of ER Dampers for Ambulances

概要

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We propose to apply dampers using electrorheological(ER)fluid for suspensions of ambulances, and present an optimization method of the ER dampers for reducing jolts experienced by patients when ambulances pass over speed humps which have been built on roads as a means of reducing the speed of vehicles. It seems that the large jolts affect ambulances that rapidly arrive at a scene of an accident and transport patients to hospitals, because such jolts force the drivers to pass over speed humps at lower speeds than normal ones. As a result of the optimization of the ER dampers, the optimum damping force of each of the front and rear dampers is obtained and the jolts are reduced. The maximum acceleration imposed on the patient obtained in this study is compared with the one obtained by the optimization of suspensions for a vibration-isolation bed in a previous investigation.
一般社団法人日本機械学会の論文
1999-12-15