LOW NOISE HIGH MOBILITY MULTIDISCIPLINARY OPTIMISATION DESIGN OF THE SUBMARINE BASED ON COLLABORATIVE OPTIMISATION ALGORITHM

摘要

MDO (Multidisciplinary Design Optimisation) is the most active field of current research on complex system engineering design. To solve the low resistance, low noise and high mobility multidisciplinary design optimisation problems of submarine shape, based on multidisciplinary collaborative optimisation framework, divided the optimisation design of submarine shape into three disciplines multidisciplinary optimisation design problem of a system-level and containing hydrodynamic discipline, flow noise discipline, maneuverability discipline. For traditional multidisciplinary collaborative optimisation algorithm solving actual complex MDO problem facing the defects of convergence difficulties and calculating time-consuming, presented a realistic improved new collaborative optimisation (NCO) algorithm and applied it to the multidisciplinary optimisation of the submarine shape. Meanwhile, the use of response surface meta-model solved the coupling problem between discipline-level and system-level. The results show that, NCO can guarantee the stability and reliability of the submarine shape low resistance, low noise and high mobility multidisciplinary optimisation design convergence results, the build of response surface meta-model between discipline-level and system-level can effectively improve the convergence rate.