Abstract
As CAE (Computer Aided Engineering) applications become increasingly precise, the knowledge required to operate these application are highly specialized. These tools have not been utilized in initial design process of mechanical products, in which designers cannot construct detailed analysis models. This paper proposed design optimization system a cross-sectional shape that can support the initial design process of bar structure. The cross-sectional design problem is formulated as a eight-objective optimization problem which can be solved using genetic algorithms. A method to generate a shape of cross-section satisfying characteristics that required by a designer is also proposed. These methods, which can reduce the number of trial and error process and failure in product design, are expected to contribute shortening product development lead-time.
