A smart system for shock and vibration isolation of sensitive electronic devices on-board a vehicle

Abstract

The paper presents an innovative system for shock and vibration isolation of a set of racks on-board vehicles containing equipment sensitive to accelerations. The suspension system is composed of air springs so that the isolation efficiency and the rack attitude do not vary if some devices are replaced with other ones having different inertial characteristics. As the air springs have a low level of damping, the suspension system is equipped with four magnetorheological dampers whose damping may be adjusted in real time to minimize rack accelerations. The suspension system also includes stabilizers in order to contain roll and pitch motions of the racks.