Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 08, 2019 - September 11, 2019
In the present paper, multi-objective optimization of CFRP road bike frame was conducted. The second order response surfaces for three loading conditions Front, Saddle and Peddle were made from FEM results. Young’s modulus and thickness of the five frame parts, perimeters of seat stay and chain stay parts, and pedal position were selected as a design parameter. A fractional central composite design for the 13 parameters was used to make the response surfaces. Pareto solutions were obtained by minimizing the multi-Objective function under the constraint condition of 10% weight reduction. Finally, single solution which has the minimum of linear combination of squared objective functions was selected. Strain energies and weight of the optimized model for the three loading cases were reduced successfully compared to the original model.
