Effect of advanced injection angle on diesel engine shaft torsional vibration

In this article, a coupling model of shafting torsional vibration with advanced injection angle is proposed to study the effect of advanced injection angle on shaft torsional vibration. Using Simulink, a model shaft system of a 4190ZL_C medium-speed diesel engine is created to study the effect. The proposed coupling model, the traditional simulation method and the test are conducted on the torsional vibration of the 4190ZL_C medium-speed diesel engine, separately. The results show that the spectrum from the coupling vibration model is more abundant than from the traditional vibration model. Hence, considering the effect of advanced injection angle on shaft torsional vibration, the proposed coupling model can improve the modeling accuracy of shaft torsional vibration. It provides a new approach in engine design.

Automated summary

This article proposes a coupling model to study the effect of advanced injection angle on shaft torsional vibration, showing that the coupling vibration model provides richer spectrum compared to the traditional vibration model. The proposed coupling model can improve the modeling accuracy of shaft torsional vibration and provides a new approach in engine design.