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海底悬跨管道
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  free spanning submarine pipeline
     Considering the effects of terrestrial and submarine pipeline, input direction of seismic wave, water depth, span, proximity from the seabed, support conditions at pipeline ends and different transmitting materials in the pipe on dynamic response, 120 groups of dynamic model experiments simulating free spanning submarine pipeline were achieved on an underwater shaking table.
     试验中考虑了地震波输入方向、管道端部支撑情况、水深、悬跨高度、悬跨长度和管内是否有水等因素。 并组合这些因素完成120组试验,得到海底悬跨管道动力响应特性。
短句来源
     The dynamic control equation of free spanning submarine pipeline is derived from the Morison equation and numerical analysis is carried out using finite element method. The results are shown to be in good agreement with experimental data.
     并根据Morison方程建立的海底悬跨管道动力控制方程对试验结果进行了有限元数值模拟,计算结果与试验结果符合得较好。
短句来源
  free spanning submarine pipelines
     EXPERIMENTAL INVESTIGATION AND NUMERICAL SIMULATION OF DYNAMIC RESPONSE OF FREE SPANNING SUBMARINE PIPELINES
     海底悬跨管道动力响应的试验研究和数值模拟
短句来源
     Experiment study on dynamic characteristics of free spanning submarine pipelines due to earthquake
     地震时海底悬跨管道动力特性试验研究
短句来源
  “海底悬跨管道”译为未确定词的双语例句
     The Dynamic Response of Free Span Submarine Pipeline Containing Flowing Fluid
     海底悬跨管道在内流影响下的动力响应研究
     Firstly, the vibration differential equation of the pipeline is written when the load is applied. The finite element method model of the suspended span of the pipeline is built. Then, the modal analysis of the model is studied.
     建立了海底输油管线在外载荷作用下的振动微分方程,利用有限元方法建立海底悬跨管道模型,然后对其进行了模态分析,进行浪致振动分析,并进行海底管线海流引起的顺流向振动分析。
短句来源
     Tests on 120 groups of different combinations of the above factors were carried out.
     完成了这些因素组合的 12 0组试验 ,得到海底悬跨管道动力响应特性。
短句来源
     The span and horizontally seismic input is the key to control pipeline response. The response of free spanning pipeline due to earthquake also differs from that due to affects of wave and current.
     悬跨长度是控制管道反应的关键 ,水平地震输入对管道反应起控制作用 ,海底悬跨管道在地震作用下的反应与受波和流作用下的反应也存在差别
短句来源
     The paper is to research the effect of internal flow on the dynamic response of free span submarine pipeline relating with engineering practice, coupling of the mathematical models of internal flow and pipeline.
     本文结合工程实际情况,应用有限元数值模型的耦合计算探讨了内流对海底悬跨管道动力响应的影响。
  相似匹配句对
     The Analysis Research on Free Spans of Submarine Pipeline
     海底管道长度的计算
短句来源
     BUCKLING ANALYSIS OF BURIED SPANNING SUBMARINE PIPELINE
     埋设海底管道的屈曲分析
短句来源
     Seismic response and vibration control of free spanning submarine pipelines
     海底管线的地震响应和振动控制
短句来源
     CHAPTER 5 MARINE SEDIMENTATION Section 2 Bottom Geomorphology
     海底地貌
短句来源
     CHAPTER 5 MARINE SEDIMENTATION Section 3 Bottom Sediment
     海底沉积物
短句来源
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Seismic loading should be taken into account while constructing submarine pipelines in the seismic active zones. Dynamic model experiments simulating free spanning submarine pipeline were performed on a underwater shaking table. The factors including span, proximity from the seabed, support conditions at pipeline ends and different transmitting materials in the pipe are considered to analyze the dynamic response of the free spanning submarine pipelines based on the experimental results. The dynamic control equation...

Seismic loading should be taken into account while constructing submarine pipelines in the seismic active zones. Dynamic model experiments simulating free spanning submarine pipeline were performed on a underwater shaking table. The factors including span, proximity from the seabed, support conditions at pipeline ends and different transmitting materials in the pipe are considered to analyze the dynamic response of the free spanning submarine pipelines based on the experimental results. The dynamic control equation of free spanning submarine pipeline is derived from the Morison equation and numerical analysis is carried out using finite element method. The results are shown to be in good agreement with experimental data.

在地震活动区铺设海底管道必须考虑地震荷载的作用。通过在水下振动台模拟海底悬跨管道完成的动力模型试验,根据试验结果分析了管道的悬跨长度、悬跨高度、支撑情况和管内运输不同物质等因素对海底悬跨管道的动力反应的影响。并根据Morison方程建立的海底悬跨管道动力控制方程对试验结果进行了有限元数值模拟,计算结果与试验结果符合得较好。

Submarine pipelines constructed in seismically active regions may be damaged under seismic load. Dynamic response for free spanning submarine pipelines due to earthquake was studied by use of an underwater shaking table. The influencing factors such as seismic wave direction, support conditions at pipeline ends, distance from the seabed, span and pipes with or without water inside were considered in the experiment. Tests on 120 groups of different combinations of the above factors were carried out. The results...

Submarine pipelines constructed in seismically active regions may be damaged under seismic load. Dynamic response for free spanning submarine pipelines due to earthquake was studied by use of an underwater shaking table. The influencing factors such as seismic wave direction, support conditions at pipeline ends, distance from the seabed, span and pipes with or without water inside were considered in the experiment. Tests on 120 groups of different combinations of the above factors were carried out. The results show the seismic response of submarine pipelines is obviously different from of the terrestrial pipelines. The span and horizontally seismic input is the key to control pipeline response. The response of free spanning pipeline due to earthquake also differs from that due to affects of wave and current.

铺设在地震活跃区域的海底管道可能在地震荷载作用下发生破坏。利用水下振动台研究了海底悬跨管线在地震作用下的动力反应。试验中考虑了地震波输入方向、管道端部支撑情况、悬跨高度、悬跨长度和管内是否有水等因素。完成了这些因素组合的 12 0组试验 ,得到海底悬跨管道动力响应特性。试验结果表明水中管道与陆地悬空管道的动力反应存在明显差别 ;悬跨长度是控制管道反应的关键 ,水平地震输入对管道反应起控制作用 ,海底悬跨管道在地震作用下的反应与受波和流作用下的反应也存在差别

>=Submarine pipeline is very important for the ocean oil and gas engineering. How to ensure the safety of submarine pipeline is one of the subjects concerned by engineers and researchers. The paper is to research the effect of internal flow on the dynamic response of free span submarine pipeline relating with engineering practice, coupling of the mathematical models of internal flow and pipeline. To horizontal submarine pipeline carrying oil, the 3-D fluid-structure interaction of pipeline and internal flow...

>=Submarine pipeline is very important for the ocean oil and gas engineering. How to ensure the safety of submarine pipeline is one of the subjects concerned by engineers and researchers. The paper is to research the effect of internal flow on the dynamic response of free span submarine pipeline relating with engineering practice, coupling of the mathematical models of internal flow and pipeline. To horizontal submarine pipeline carrying oil, the 3-D fluid-structure interaction of pipeline and internal flow is numerically simulated by applying the iterative computation to the fluid-structure interfaces. The pipeline and internal flow are simulated by using the 3-D elastodynamic equation and laminar or turbulent model, respectively. The finite element method is used to discrete the governing equations. The natural frequency of this system is calculated, and compared with other methods for calculating the natural frequency of pipeline containing fluid. The computations are also performed for the pipe subjected to impact load or regular wave load with the different internal flow velocity, and the effect of internal flow on the pipeline dynamic response is discussed.

海底管道是海洋油气工程的重要组成部分。如何保障海底管道的安全是设计和研究人员十分关心的问题之一。本文结合工程实际情况,应用有限元数值模型的耦合计算探讨了内流对海底悬跨管道动力响应的影响。针对水平输油悬跨管道,采用三维弹性动力学方程模拟管道,内部流体采用层流模型。通过在流固边界上反复迭代,进行管道及其内部流体系统的三维流固全耦合计算,得到管流耦合系统的固有频率,并与其它频率计算方法的计算结果进行了比较。同时对冲击载荷和波浪载荷作用下,不同流速内流对海底管道动力响应的影响进行了计算和比较分析。

 
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