Optimization of Exhaust Port Shape Using Computer Simulation.

In order to represent the real world faithfully, computer simulations have become increasingly more complex in recent years, which has tended to lengthen the computational time involved. In simulation-based robust design, the necessity of considering the variation of each parameter greatly increases the number of specifications that are calculated. In practical terms, that makes it impossible to examine robust designs thoroughly in some cases. With the aim of overcoming this problem, this study examined a method for executing a robust design efficiently even when simulations requiring a long computational time are used. The proposed method was applied to optimize the shape of an automotive engine exhaust port. This paper describes the proposed method for executing simulation-based robust designs efficiently and presents the results of its application to the exhaust port shape. [ABSTRACT FROM AUTHOR]