Reliability design of a standby system by a large-scale multiobjective optimization method

This paper deals with the reliability design of a standby redundancy system from a view point of large-scale multiobjective optimization. A large-scale multiobjective mathematical model is formulated and the problem considered is to optimize system reliability, cost, weight and volume, for a given mission time, subject to multiple constraints. A large-scale multiobjective optimization method is proposed by combined application of both surrogate worth trade-off method and dual decomposition method, and the preferred solution of the decision maker can effectively be obtained by using the proposed method. The method is illustrated by numerical examples.