复杂动荷载作用下海底悬跨管道的动力模型试验研究
发布时间：2018-12-12 05:17
【摘要】：海底管线作为海上油气田开发的重要基础设施,承担并保证着运输石油天然气的不可替代重要作用。与此同时,在建设、施工、应用的过程中出现了越来越多的问题,如出现海底管道泄露,污染,爆炸等事故,对海洋的环境和实施海底管道项目的国家将带来非常严重乃至不可估量的损失。海底管线重要性以及存在的安全问题,促使设计人员及施工人员的创新理念和应急预案综合的技术和管理水平不断的提高。目前国内外对海底管线在波浪、海流和地震联合作用下的动力响应和失效模式的研究还不够成熟,尤其是缺乏必要的物理模型试验研究。本文中利用水下地震-波流联合试验模拟系统进行了海底管线在波流、地震单一与联合作用下的动力响应模型试验。模型管道考虑管外水流和波浪的影响,测定不同悬跨长度、悬跨高度及不同地震激励,获得了多种工况下的试验数据,分析了内、外流体对管线自振特性的影响。并通过有限元分析软件ADINA模拟模型试验工况,并将数值模型分析结果与试验结果作比较,从而验证了有限元计算模型的可靠性。
[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.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：P756.2
本文编号：2373988
[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.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：P756.2
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