Experimental investigation of active vibration control for diesel engine generators in marine applications

An active vibration control system is developed for diesel engine generators in a tug boat.This system consists of six inertial electromagnetic actuators and a DSP processor.A six-input and six-output adaptive control strategy is adopted and the reference input signal comes from a laser tachometer on the shaft of the diesel.The active vibration control experiment is conducted in a tug boat when only the diesel engine generator is working.The experimental results demonstrate that good signal reductions are obtained not only at vibration sensors but also at the hydrophone dropped in the water under the hull.Some discussions and conclusions are given at last.