Open AccessEngine Oil- Crankshaft Interaction Fem Modelling of an Air-Cooled Diesel Engine under Dynamic Severe Functioning Conditions
Author(s) -
Oumar Keita,
Yacouba Camara,
Jamel Bessrour,
Vincent Velay,
Farhad Rézaï-Aria
Publication year - 2021
Publication title -
physical science international journal
Language(s) - English
Resource type - Journals
ISSN - 2348-0130
DOI - 10.9734/psij/2021/v25i830278
Subject(s) - crankshaft , diesel engine , automotive engineering , finite element method , brake , mechanical engineering , materials science , stirling engine , mechanics , structural engineering , engineering , physics
Taking into account the interaction between the engine oil and the crankshaft to model crankshaft thermomechanical behavior under dynamic loading is very important. In particular, when the crankshaft is working in severe conditions. This paper deal with an air cooled direct injection-type engine crankshaft thermomechanical FEM modelling account for engine oil-cranks half interaction in severe working conditions. As case of application we consider the diesel engine Deutz F8L413. The model takes into account 2 forced convectives heat flux: engine oil and crankcase air. The severe mechanical and thermal characteristics of engine are experimentally measured on a bench test equipped with a hydraulic brake. The temperature distribution inside the crankshaft was computed using the measured temperature as boundary conditions. The most thermo-mechanical stressed zones of the crankshaft have been determined. The fatigue resistance of the crankshaft under thermo-mechanical conditions was examined using Dang-Van multi-axial fatigue criteria. To prove our model efficiency, we have compared crankshaft damage in service to the numerical simulation results. It was found the breakage occurred in an area where the numerical simulations give the highest stresses.