Mechanics & Industry
Volume 21, Number 5, 2020
|Number of page(s)||10|
|Published online||18 August 2020|
Analysis of torsional vibration effect on the diesel engine block vibration
College of Power and Energy Engineering, Harbin Engineering University, Harbin Heilongjiang, China
2 China Shipbuilding Power Engineering Institute Co., Ltd, Shanghai, China
* email: email@example.com
Accepted: 20 July 2020
In this paper, the coupling effect between the crankshaft torsional vibration and the low speed diesel engine block vibration is investigated. Using finite element method (FEM), a model of low speed diesel engine is established to study the vibration response. The mode results of FEM agree very well with the test. The additional torques acting on the low-speed diesel engine caused by torsional vibration are discussed in detail. The vibration response of the low-speed diesel engine considering the effect of torsional vibration is studied using FEM simulation. By analyzing the effect of torsional vibration, the results demonstrate that the crankshaft torsional vibrations have important effects on the engine block vibration. The results from this study can provide useful theoretical guidance to predict vibration of low-speed diesel engine.
Key words: Coupling model / torsional vibration / block vibration / FEM / low speed diesel engine
© AFM, EDP Sciences 2020
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