Ship structural component contribution evaluation based on grey target theory

Chinese Journal of Ship Research - - 目 次 -

WANG Wenyu,LIU Jingxi,ZHAO Yao

School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology, Wuhan 430074,China

Abstract:[Objectives] A concept named 'component contribution rate' is proposed to solve problems concerning the influence of ship structure components on ship structure performance.[Methods]First, a hierarchical structure is elaborated and mapped from structural components to structural performance. Second, the component contribution rate is defined in order to describe the contribution rate for a component in structural performance to fulfill its structural purpose. Next, the grey target theory is applied to quantify the component contribution rate.[Results]Finally, the application of the proposed method is demonstrated through a SWATH case study.[Conclusions]This method can be applied in the evaluation of the ship structural schemes,in order to support the optimal design of ship structure. Key words:ship structural performance;components contribution rate;grey target theory

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