CEL algorithm-based visualization simulation of the transient oscillation of engine lubricant

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (1) : 72-76.

Maziyuan Yuxiaoli Huangyuqi LIU Zhentao Huangrui

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Abstract

The engine lubricating fluid transient oscillation process is a complex fluid solid coupled problem. A fluid solid couple model for the crankshaft, oil sump and lubricating oil of a vehicle was established and the transient sloshing responses of the lubricant by using the coupled Euler Lagrange (CEL) algorithm during the starting, acceleration, braking and steering working conditions were analysed. The finite element modeling and the volume fraction treatment of the CEL method were discussed. On the basis of the case analysis of a liquid shock, the dynamic responses of the oil sump shell were investigated. The results show that under the liquid sloshing conditions, the sharp peak phenomenon will appear on the oil pan wall stress curve, which has a great impact on the NVH performance. The results are of practical significance to realize the visualization of transient liquid oscillation processes and to implement the noise reduction in engine design.

Key words

CEL algorithm, lubricant, vibration and oscillation / visualization, response

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Maziyuan Yuxiaoli Huangyuqi LIU Zhentao Huangrui. CEL algorithm-based visualization simulation of the transient oscillation of engine lubricant[J]. Journal of Vibration and Shock, 2018, 37(1): 72-76

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