Optimization Design And Analysis For The Turbocharger Based On Finite Element Technology

With the widely application of finite element analysis and structural optimization can shorten the period of production development efficiently, reduce the cost of production manufacture and improve the quality and reliability of the product. The structural of frame for 2500 turbocharger is investigated in this thesis. In view of the properties of the materials and static and fatigue features, taking finite element analysis software ANSYS as the analysis tool, the analysis and optimization of the structural frame are researched, taking fatigue analysis software MSC.fatigue as the fatigue analysis tool . It also provides basis and direction for the design and trial of the product.Finite element models primarily based on the solid element and finite element technology are set up with ANSYS Parametric Design Language, and the modelings are simplified necessarily for calculating more convenience. From the static analysis of the frame, the stress and displacement that vary with position are gained and the basis is provided for the next product design and trial.From the results of fatigue analysis and influence of superhigh pressure , by selecting parts of geometry size as the design variables, in terms of meeting certain intension and toughness demands, the frame volume is selected as objective variable, and by adopting zero rank approach, the structural optimization is developed to prolong fatigue life of the material.With the finite element analysis, the results have a great significance to improve the design quality and benefit. So it has practical application value.