Prospect of Application of Multidisciplinary Design and Optimization to the Design of Modern Torpedoes

This paper introduces the current situation and development of multidisciplinary design and optimization(MDO)technology.It is pointed out that this technology is applicable to modern torpedo design by building up system optimization model suitable for torpedo,determining the optimization algorithm,optimizing design process,and establishing the multidisciplinary concurrent platform for torpedo overall design and optimization.Therefore,coordinated torpedo design among different systems and disciplines can be implemented to raise the overall design level.Moreover,this paper presents several optimization algorithms,such as single-stage optimization,concurrent subspace optimization and collaborative optimization.It also introduces some optimization design platforms including iSIGHT software,DAKOTA software,VisualDOC software,and ModelCenter software developed respectively by Engineous Software Company,Sandia National Laboratory,Vanderplaats Research & Development,Inc.,and Phoenix Integration Company.