Vibration Control for a Beam Structure Using an Electromagnetic Damper with Velocity Feedback : 2nd Report, Shock Response

Abstract

In this report, the transient response of a beam structure having an electromagnetic damper with velocity feedback introduced in the previous report is investigated theoretically and experimentally. The beam structure is subjected to shock by electromagnetic force generated by a micro computer and an electromotive linear actuator, and the transient vibrations are controlled by the electromagnetic damper. In the analysis, the transient response of the vibration displacement of the beam system and the electric current of the control system are derived exactly by use of Laplace transformation and Bernoulli-Euler bending theory. Furthermore, the efficiency and the stability of the vibration control are investigated in detail.