Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 16, 2019 - September 18, 2019
In recent years, the manufacturing industry has increased its use of evaluation by numerical analysis in the upstream process of development in order to reduce manufacturing rework. Furthermore, with the aim of improving product quality and reduce development man-hours, automatic determination of design parameters using optimization algorithms is also being actively studied, and there are some cases where numerical analysis is used when evaluating objective functions. However, due to the difficulty of analysis and computational cost, shape optimization on a part-by-part basis and overall optimization with a reduced dimensional model are the main focus. Therefore, we combined the in-house large-scale structure simulator and the optimization technology, and developed the shape optimization system based on overall structure analysis. Optimization was performed targeting plastic injection molding machines, with the shape of the linkage as the design variable and the energy consumption minimization during mold open / close operation as the objective function. As a result, it was possible to obtain a part shape that can greatly reduce energy consumption.
