سال انتشار: ۱۳۸۶
محل انتشار: پنجمین همایش موتورهای درونسوز
تعداد صفحات: ۱۰
Hamidreza Chamani – Iran Heavy Diesel Engine Mfg Co. (DESA)
Amir Malakizadi – Iran Heavy Diesel Engine Mfg Co. (DESA)
Seyed Navid Shahangian – Iran Heavy Diesel Engine Mfg Co. (DESA)
which are exposed to high temperature differential between cooling jacket and combustion chamber and also they are in frictional contact with piston rings, therefore liners are subjected to complicated multiaxial thermal and mechanical stresses. In this study, a detailed analysis is conducted on a centrifugal gray cast iron liner using different CAE tools to have a more accurate estimate of thermo-mechanical loads. The coolant flows inside the liner jacket and combustion
process within the cylinder are simulated using 3D CFD methods. Besides the linear FE analysis which is known as an oversimplified method, a multilinear kinematic model is used to simulate the material response more accurately. In the end, a brief fatigue life prediction methodology has been introduced.