FEM Analysis on Block Vibration of Diesel Engine

Abstract:

In order to evaluate the vibration history of the engine block and predict its surface vibration status, a FEM model on 4102BZQ Diesel Engine block was constructed. Based on the cylinder pressure curve of 4102BZQ, some important exciting forces applied on the block were calculated. ANSYS software was used to compute and analyze dynamic response of the block. Simultaneously the node displacement history of the block model was obtained. The results of calculation and analysis showed that the vibration of the block skirts was more intense and the skirt was the main factor to influence the reliability of the engine. Cylinder head bolt force and piston slap force had significant effect on the top area of the block, and the surface vibration of the skirt was strongly influenced by the crank shaft load.

• Periodical: Applied Mechanics and Materials (Volumes 155-156)
• Pages: 1086-1089
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.155-156.1086
• Online since: February 2012
• Authors: Pei Pei Guo, Wen Zhi Gao
• Keywords: Block, Diesel Engine, Finite Element Method (FEM), Vibration

References

[1] Chen Yu-biao, Yang Shou-zang, 6135 Diesel Engine Forced vibration of finite element analysis, Design and manufacture of diesel engines, (1996).

[2] Tan Da-ming, Engine Vibration Control, Southwest Jiao Tong University Press, (1993).

[3] N. Lalor, Finite Element Optimization Technique of Diesel Engine Structures, SAE 820437.

[4] Fu Zi –zhi translation, the finite element method in engineering analysis, Mechanical Industry Press.

[5] Ni Dong, Duan Jin, Finite element analysis of ANSYS7. 0 - example refined solution, Electronics Industry Press, (2003).

[6] Liu Yu-hui, Hao Zhi-yong, Forced vibration on ZHlll0 diesel body, Tractors and farm vehicles, (2002).