| Trial and Numerical Analysis of Specimen Pipelay |
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| 作者姓名： | HE Yanping |
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| 作者单位： | School of Naval Architecture and Ocean Engineering，Shanghai Jiao Tong University，School of Naval Architecture and Ocean Engineering，Shanghai Jiao Tong University，School of Naval Architecture and Ocean Engineering，Shanghai Jiao Tong University，School of Naval Architecture and Ocean Engineering，Shanghai Jiao Tong University Shanghai 200030，China，Shanghai 200030，China，Shanghai 200030，China，Shanghai 200030，China |
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| 摘 要： | Subsea pipelay has a relatively long history. In recent years, there has been a domestic need for the laying of large diameter thin wall pipes. A land-based trial for the large diameter thin wall specimen pipe is described in this paper. Re-gression analysis is performed for the trial data and the formula derived can express the trial data very well. Numerical analysis is adopted to compute various trial conditions. Then the numerical model is revised with the trial results, which are consistent with each other. After summarization of the results of trial and numerical analysis, the characteristics are described of the spatial configuration during the laying of the pipe and it is concluded that the maximum strain appears around the center of the raised pipeline. In the end, a reference Standard, which limits the maximum stress below the yield stress is provided.
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Trial and Numerical Analysis of Specimen Pipelay |
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| HE Yanping,DENG Deheng
TAN Jiahua and GU Mintong
School of Naval Architecture and Ocean Engineering,Shanghai Jiao Tong University,Shanghai ,China.Trial and Numerical Analysis of Specimen Pipelay[J].China Ocean Engineering,2002,16(2):257-262. |
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| Authors: | HE Yanping DENG Deheng
TAN Jiahua and GU Mintong
School of Naval Architecture and Ocean Engineering Shanghai Jiao Tong University Shanghai China |
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| Institution: | School of Naval Architecture and Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200030, China School of Naval Architecture and Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200030, China School of Naval Architecture and Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200030, China School of Naval Architecture and Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200030, China |
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| Abstract: | Subsea pipelay has a relatively long history. In recent years, there has been a domestic need for the laying of large diameter thin wall pipes. A land-based trial for the large diameter thin wall specimen pipe is described in this paper. Re-gression analysis is performed for the trial data and the formula derived can express the trial data very well. Numerical analysis is adopted to compute various trial conditions. Then the numerical model is revised with the trial results, which are consistent with each other. After summarization of the results of trial and numerical analysis, the characteristics are described of the spatial configuration during the laying of the pipe and it is concluded that the maximum strain appears around the center of the raised pipeline. In the end, a reference Standard, which limits the maximum stress below the yield stress is provided. |
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| Keywords: | Seabed pipetine large deflection nonlinear analysis |
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