Study on the Self-Powered Active Vibration Control. Application to Random Vibration and a Cab Suspension of a Truck.

Abstract

This paper treats the self-powered active vibration control system, which realizes active control without external energy. A typical active controller requires external energy which is not required by a passive or a semi-active controller. This is one of the drawbacks of the active control system. The proposed self-powered active control system uses the vibration energy supplied by the energy regenerative damper. This paper examines isolation performance of the self-powered active control by utilizing random input and proposes to apply this system to a cab suspension of a truck. In the self-powered active control system inflicted with random input, vibration energy regenerated from high frequency vibration can be used to control low frequency vibration. Through experiments, it is proved that the response to the random input is better than that to the sinusoidal input in low frequency range. Numerical simulations demonstrate better isolation performance of the self-powered active control in the cab suspension system.