高速多重極境界要素法を用いた効率的な防食設計の最適化手法

抄録

An effective optimization technique for cathodic protection design is developed. To cope with the large amount of memory and calculation, the fast multipole boundary element method (FMBEM) is applied. To achieve an effective optimization, the initial values of the design variables, i, e., the location and current of each electrode, are determined by solving an inverse problem. In the inverse problem both of the potential and the current density on the metal surfaces to be protected are given as the ideal values, i.e., the protection potential and its corresponding current density. The inverse problem is solved effectively by using the FMBEM. Using thus obtained initial values, the optimization problem is solved by the symplex method. A couple of example problems are solved to demonstrate the effectiveness and usefulness of the present method.