Simulation and Stress Analysis of The 6-Cylinder Engine of The ITM 1500 Tractor Crankshaft

The powertrain is a vital part of any vehicle. In the meantime, the crankshaft is one of the important components of the system, by connecting rod, it takes the necessary combustion force from the pistons that have a linear motion and converts it into a rotational motion. Because crankshaft suffers from repetitive cycles in its activity, it is always subject to complex forces and boundary conditions. Therefore, identifying and how to apply, amount and direction of such components is very important. Lack of knowledge of the conditions governing the crankshaft will lead to the failure of the crankshaft and the failure of the entire transmission system. In this regard, for the first time, we sought to determine the stress conditions in the ITM 1500 tractor crankshaft that working in operational situation and to determine the stress concentration and places prone to fatigue and failure. We begin by evaluation of the source and amount of loads applied and how they affect the crankshaft. Then we drew the necessary 3D models in Siemens NX software. Finite element model analysis was performed by defining suitable material, solver, load and boundary conditions specifications in Abaqus software. Mesh was also done in ANSA specialized pre-processing software. The results obtained from finite element analysis were presented and reviewed. The amount and location of critical stress points in the entire model and the path defined on the main bearings were determined. In the end, the necessary conclusions were expressed using the obtained results.