Browse Publications Technical Papers 2009-01-0816
2009-04-20

Finite Element Analysis of Connecting Rod and Correlation with Test 2009-01-0816

With the increasing need to have faster product development and yet achieve the optimum design, thrust on accurate FEA of components and system is felt. The connecting rod is an important component of the crank train and it has a significant mass contribution in multi-cylinder engine. Principal focus is directed to connecting rods having load ratio greater than or equal to 2. As the connecting rod operates in elastic range (i.e. high cycle fatigue life region) stress life approach is adopted for fatigue life evaluation.
The three fold purpose of this paper is to establish an accurate FE modelling technique and analysis procedure that simulates the test conditions, aids in accurate fatigue life prediction and most importantly provides a simple procedure for virtual validation of connecting rod. To achieve this objective static strain measurement and fatigue test of connecting rod is carried out on a test bench. The results of the static strain measurement were then compared with the FEA results. Good conformance with experimental results verified the analysis procedure and FEA modelling procedure. Fatigue life prediction was carried out based on the FEA results thus obtained.

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