Dynamic Analysis of Torsional Vibration of Reed Damper of Diesel Engine

Abstract

Abstract During the operation of diesel engine, there are many kinds of vibration modes in its shafting motion. Now the main explanation is torsional vibration. This kind of vibration may lead to the increase of shaft wear, even the fatigue damage of the shaft system or the damage of the diesel engine. During the operation of spring shock absorber, its components shear oil film continuously and interact with lubricating oil, which affects the change of fluid damping of the shock absorber, so as to better select effective methods to cope with the change. The fluid-solid coupling method is used to simulate the effect of lubricating oil and analyze the vibration absorption performance of shock absorber. Therefore, choosing elastic damped spring damper can respond to fluid-structure coupling analysis, through dynamic analysis, reduce torsional vibration of shafting and improve the safety of ship navigation, which has important significance and value.