復(fù)雜動(dòng)荷載作用下海底懸跨管道的動(dòng)力模型試驗(yàn)研究
[Abstract]:As an important infrastructure for offshore oil and gas development, submarine pipeline plays an irreplaceable role in oil and gas transportation. At the same time, in the process of construction, construction and application, there have been more and more problems, such as submarine pipeline leakage, pollution, explosion and other accidents. The environment of the sea and the implementation of submarine pipeline projects will bring very serious and even immeasurable losses. The importance of submarine pipeline and the existing safety problems promote the innovative concept of designers and construction personnel and the comprehensive technical and management level of emergency plan. At present, the research on the dynamic response and failure mode of submarine pipeline under the combined action of wave, current and earthquake is not mature enough, especially the necessary physical model test. In this paper, the dynamic response model test of submarine pipeline under the action of single and combined wave and current is carried out by using the underwater seismo-wave current simulation system. Considering the influence of the current and wave outside the pipe, the model pipe measured the different span length, height and earthquake excitation, obtained the experimental data under various working conditions, and analyzed the influence of internal and external fluid on the natural vibration characteristics of pipeline. The finite element analysis software ADINA is used to simulate the model test conditions, and the results of numerical model analysis are compared with the test results, which verifies the reliability of the finite element calculation model.
【學(xué)位授予單位】:大連理工大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:P756.2
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