n Dinh Son - Danang University of Technology, The University of Danang, ۵۴ Nguyen Luong Bang, Danang, Vietnam

Due to the development of science and technology, the computer has become a useful tool for supporting engineering activities in product design. Many computer aided tools such as ComputerAided Design/Manufacturing (CAD/CAM), product data management (PDM), product life cycleassessment (PLA), etc., have been popularly used in industry for reducing product development leadtime and increasing total product quality. As a result, product designers can easily create the numericalmodel of product based on these tools. However, it can only represent nominal information of theproduct. It is not able to deal with various kinds of multi-physical effect during the whole product life cycle, especially in manufacturing/assembly and product usage stage. Performance analysis of productbased on this model gives a result that is different from the real product in practice. It can make thequality of the product designed not to meet fully the requirements of customers and users. Thus, this paper proposes a global methodology that allows integrating the multi-physical effect throughout the product life cycle into the performance simulation. The variation sources throughout product life cycle are taken into account performance analysis of product

Performance Analysis,Product Life Cycle,Geometric Deviation Model,Manufacturing Simulation