Minimum Resistance Ship Hull Uncertainty Optimization Design Based on Simulation-Based Design Method

doi:10.1007/s12204-017-1882-9

上海交通大学学报（英文版） ›› 2017, Vol. 22 ›› Issue (6): 657-663.doi: 10.1007/s12204-017-1882-9

Minimum Resistance Ship Hull Uncertainty Optimization Design Based on Simulation-Based Design Method

HOU Yuanhang* (候远杭), YOU Yuan (游园), LIANG Xiao (梁霄)

(Transportation Equipment and Ocean Engineering College, Dalian Maritime University, Dalian 116026, Liaoning, China)

出版日期:2017-12-01 发布日期:2017-12-03
通讯作者: HOU Yuanhang (候远杭) E-mail:houyuanhang6@163.com

Minimum Resistance Ship Hull Uncertainty Optimization Design Based on Simulation-Based Design Method

HOU Yuanhang* (候远杭), YOU Yuan (游园), LIANG Xiao (梁霄)

(Transportation Equipment and Ocean Engineering College, Dalian Maritime University, Dalian 116026, Liaoning, China)

Online:2017-12-01 Published:2017-12-03
Contact: HOU Yuanhang (候远杭) E-mail:houyuanhang6@163.com

摘要/Abstract

摘要： In the ship hull optimization design based on simulation-based design (SBD) technology, low precision of the approximate model leads to an uncertainty form of optimization model. In order to enable the approximate model with finite precision to maximize the effectiveness, uncertainty optimization method is introduced here. Wave resistance coefficient approximation model, built by back propagation (BP) neural network, is represented as a form of interval. Afterwards, a minimum resistance optimization model is established with the design space constituted by principal dimensions and ship form coefficients. Double-level nested optimization architecture is proposed: for outer layer, improved particle swarm optimization (IPSO) algorithm with learning factor improvement strategy is used to generate design variables, and for inner layer, modified very fast simulated annealing (MVFSA) algorithm is used to solve the objective function interval with uncertainty region. Cases calculation proves the effectiveness and superiority of uncertainty optimization method for ship hull SBD optimization design, thus providing a good way for finding optimal designs.

关键词: ship hull optimization, approximation model, uncertainty optimization, interval programming

Abstract: In the ship hull optimization design based on simulation-based design (SBD) technology, low precision of the approximate model leads to an uncertainty form of optimization model. In order to enable the approximate model with finite precision to maximize the effectiveness, uncertainty optimization method is introduced here. Wave resistance coefficient approximation model, built by back propagation (BP) neural network, is represented as a form of interval. Afterwards, a minimum resistance optimization model is established with the design space constituted by principal dimensions and ship form coefficients. Double-level nested optimization architecture is proposed: for outer layer, improved particle swarm optimization (IPSO) algorithm with learning factor improvement strategy is used to generate design variables, and for inner layer, modified very fast simulated annealing (MVFSA) algorithm is used to solve the objective function interval with uncertainty region. Cases calculation proves the effectiveness and superiority of uncertainty optimization method for ship hull SBD optimization design, thus providing a good way for finding optimal designs.

Key words: ship hull optimization, approximation model, uncertainty optimization, interval programming

中图分类号:

U 661.1

HOU Yuanhang* (候远杭), YOU Yuan (游园), LIANG Xiao (梁霄). Minimum Resistance Ship Hull Uncertainty Optimization Design Based on Simulation-Based Design Method[J]. 上海交通大学学报（英文版）, 2017, 22(6): 657-663.

HOU Yuanhang* (候远杭), YOU Yuan (游园), LIANG Xiao (梁霄). Minimum Resistance Ship Hull Uncertainty Optimization Design Based on Simulation-Based Design Method[J]. Journal of Shanghai Jiao Tong University (Science), 2017, 22(6): 657-663.

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Minimum Resistance Ship Hull Uncertainty Optimization Design Based on Simulation-Based Design Method

Minimum Resistance Ship Hull Uncertainty Optimization Design Based on Simulation-Based Design Method

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