Optimizing the Design of Connecting Rod under Static and Fatigue Loading
The main objective of this work is to re-optimize the existing design of connecting rod of universal tractor (U650) by changing some of the design variables. The existing design performs modelling and evaluates critical regions in the connecting rod under fatigue loading. In the present work, the model is developed, analyzed and designed using CATIA 19, PRO-E and ANSYS workbench v12. Optimization of connecting rod is done under same boundary and loading conditions for variation in the few stress and fatigue parameters i.e. stresses, weight, life, damage, bi-axiality indication and safety factor. The allowable numbers of cycles under fully reversed fatigue loading are increased and assumed up to a maximum limit of 10 cycles. Stress concentration coefficient is varied to obtain the maximum cycles condition. The critical regions under both static and fatigue analysis are identified and improved. The connecting rod is modelled and optimized for the reduced weight, improved life and manufacturability. The results obtained from performed analysis can be used to modify the design of existing connecting rod, so that better performance i.e. reduced inertia, fatigue life and manufacturability can be obtained under varying static and fatigue conditions.
Finite Element Analysis and Structural Improvement of Diesel Engine Connecting Rod
In this paper, with the ANSYS, stress distribution, safety factor and fatigue life cycle of connecting rod were analyzed by using 3D finite element method. The results show that the exposed destructive position is the transition location of small end and connecting rod shank at maximum compression condition. Maximum stress is 303MPa. Safety factor is 1.24. At maximum stretch condition, the exposed destructive position is I-shaped cross-section at big end. Maximum stress is 118MPa. Safety factor is 3.19. And structure of connecting rod is improved. Safety factor and fatigue life cycle of connecting rod increases.
A Three Dimensional Finite Element Analysis of a High Speed Diesel Engine Connecting Rod
A high speed diesel engine connecting rod is extensively modeled incorporating three dimensional finite elements and bolt pretension forces. The resulting finite element analysis determines those regions containing high stress values and defines the deformed shapes for various loading conditions.