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Research on Direct Calculation of Yielding and Buckling Strength Based on JTP Rules for Oil Tankers

作　者: Nisar Ahmad
导　师: Han Duan Feng
学　校: 哈尔滨工程大学
专　业: Naval Architecture
关键词: Joint tanker Project (JTP) Common Structural Rules (CSR) Yield strength buckling strength The finite Element Analysis (FEM) Three tanker model Load Ultimate strength
分类号: U661.43
类　型: 硕士论文
年　份: 2008年
下　载: 7次
引　用: 0次
阅　读: 论文下载

内容摘要

In order to satisfy the requirement of Maritime Organization and ship owner, IACS established the common Structural Rules for Oil Tanker (CSR), which came into effect at 1st April 2006.The CSR is based on the concept of target ship; it has contained the experience and latest research results of members of IACS.The yielding and buckling, which are usually defined two main failure modes for ship structure, are especially defined in CSR. This paper mainly researches the assessment of yielding strength by FEM and advanced buckling analysis according to the CSR. The main contents are appended below.1)Introduce the technology of FEM in CSR, including modeling, loading, definition of Load cases and the adjustment of shear force and bending moment. Research the theoretical background of FEM according to the CSR by use of basic mechanics principles and equal design wave approach (EDW).2) The midship cargo tank FE model is established by means of ANSYS software.3)Research on the advanced buckling analysis in CSR; discuss the main impactions and theoretical background of the advanced buckling analysis. Give a brief review of the theoretical background, design principles and purpose of PULS,which is procedure recommended by IACS to assess the buckling strength.4) Research on the buckling assessment method in software of PULS, including a simplified method for elastic large angle deflection analysis of plates and stiffened panels due to local buckling. 5) The yielding strength,buckling strength assessment was done according to the JTP Rules.According to the conclusion of results, the different impactions of Load cases are suggested.

Research on Direct Calculation of Yielding and Buckling Strength Based on JTP Rules for Oil Tankers

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