ナビエ・ストークス方程式の数値解を用いた非線形計画法による物体形状の最適化 (第4報) : 感度解析手法の改良

概要

論文の詳細を見る
A variety of applications of nonlinear programming to ship form design have recently been made. The authors have also worked on shape optimization problem for minimizing viscous resistance of 2-dimensional body by combining Computational Fluid Dynamics and the nonlinear programming. This paper provides an improvement of the method of sensitivity analysis for obtaining the resistance variance due to the deformation of an original body shape, which is represented by using B-spline function. The point of the improvement is to evaluate an additional linear term in the expression of the resistance sensitivity with respect to the design variable, which has been neglected in the existing methods. The results of a few examples of the optimized shape and the detailed analysis on the distribution of the sensitivity coefficient components demonstrate the validity of the present method.
社団法人日本船舶海洋工学会の論文
1994-09-25