Strength Calculation Analysis of Diesel Engine Linkage Based on Three-Dimensional Contact Finite Element Method

Abstract:

Adopting a three-dimensional contact finite element method, with complex connecting rod group assembled body model of computation, the fatigue strength of the connecting rod of a certain type of diesel engine was verified. A transient stress analysis was conducted on the connecting rod. Compared with the connecting rod static stretching and compression test, the three-dimensional contact finite element method, which was used to analyze the strength of the connecting rod subassembly, was feasible. Based on the three-dimensional contact finite element method, the connecting rod transient stress analysis results showed that the maximum stress of the connecting rod did not occur under the highest pressure of the cylinder, and the dynamic stress value was less than the static stress value.

• Periodical: Applied Mechanics and Materials (Volumes 148-149)
• Pages: 1202-1208
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.148-149.1202
• Online since: December 2011
• Authors: Gui Xin Wang, Xiao Bo Li, Li Jun Guo, Jun Yan Ma
• Keywords: Connecting Rod, Contact Finite Element Method, Dynamic Stress, Strength

References

[1] Q. Wang, F. He: A view of developments in the forging of connecting rod in china. Journal of Materials of Processing Technology 151(2004), 192.

[2] Li xian-ming: Finite Element Analysis of Commins Diesel Engine Connecting Rod on Complex Working Condition Based on Three-dimensional Assembly Model. Master degree thesis of Su Zhou University, 2005:9-56.

[3] Hu zhi-yuan, Lou di-ming, Tan pi-qiang, Kong gui-xiang: Three-dimentional Finite Element Analysis of Off-road Turbocharged Diesel Engine Connecting Rod Components. Journal of Tongji University (Natural Science Edition), 2009, 37(1):101-105.

[4] Ma jun-yan: The Computational and Experimental Study on Stress and Deformation of the Connecting Rod of Diesel Engine. Master degree thesis of Harbin Engineering University, 2010: 6-58.

[5] Zhou ning, in: ANSYS Mechanical Engineering Application Examples (First Edition), edited by Press of China Water Conservancy & Hydroelectricity, Beijing(2008), in press.