Evaluation Of Cylinder Block Structure Of CY4102BZQ Diesel Engine

The cylinder block, framework of a diesel engine, supports and fixes all the components and accessories,and suffers from very complicated force conditions, and its reliability has an important effect on the performances of a diesel engine. A detailed analysis, computation or exact evaluation on its structural strength and rigidity is essential in the process of design in order to improve and optimize the design scheme correctly, and then achieves a satisfactory effect of design.Finite element analysis is a kind of universal numerical analysis method and the most reliable and effective tool for the study of complex structure force conditions currently. The cylinder block of a CY4102BZQ turbocharged diesel engine for vehicle purpose was used as the investigation object in this dissertation and the computation analysis of finite element stress field and deformation field under different operating conditions was firstly carried out by means of finite element method. The law of stress changing about the dangerous positions and their corresponding deformation data were achieved. Secondly, an experimental research on the structure intensity of the cylinder block was carried through. Finally, the reliable evaluation of the cylinder block structure under the turbocharged conditions was accomplished. The research results of this dissertation will provide a basis for the feasibility of the design scheme of the cylinder block structure.