Vibration isolation and reduction by spring-stiffness control based on theory of variable structure systems
- National Defense Academy, Yokosuka (Japan). Dept. of Mechanical Engineering
- National Defense Agency, Gotenba (Japan)
By controlling spring stiffness, vibration reduction and isolation for the mass-spring system are achieved in this paper. The control algorithm of the spring stiffness is based on the variable structure systems (VSS) theory. The stiffness-controllable spring is achieved by using two straight bars that are hinged to the mass in a line perpendicular to the direction of mass motion and are applied axial force. Since the axial force causes restoring force equivalent to the spring, the stiffness is controlled by the axial force. In the numerical simulations and experiments, the settling time of the impulse response and the displacement transmissibility are investigated. The results show that the proposed method is effective in suppressing shock motion and isolating vibration transmitted from the floor.
- OSTI ID:
- 170377
- Report Number(s):
- CONF-950740--; ISBN 0-7918-1343-6
- Country of Publication:
- United States
- Language:
- English
Similar Records
Analysis and Experimental Testing of a New Type of Variable Stiffness Magnetic Spring with a Linear Stroke Length
Investigating the Performance of a Variable Stiffness Magnetic Spring for Resonant Ocean Power Generation