Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 08, 2019 - September 11, 2019
In this study, we develop an air suspension with variable length slit restriction and make clear dynamic characteristics of vibration isolator using air suspension, which can provide the optimum damping by damping adjustment mechanism. The optimum equivalent damping coefficient, which corresponds to the minimum resonance amplitude, increases as mass of supported object increases. The equivalent damping coefficient can be varied by varying slit length of restriction. In order to vary slit length, the damping adjustment mechanism consists of a fixed plate, which has a partially circular groove, and rotating flat plate faced to grooved plate. The equivalent damping coefficient is almost proportional to adjustment angle of the rotating flat plate in the adjustment mechanism. Even if the mass increases up to the twice of the nominal value, the minimum resonance amplitude is archived using adjustment mechanism. The maximum transmissibility is not varied even if the oscillating amplitude is varied because of the linearity of the damping characteristics of the applied variable slit restriction.
