从而计算拖缆的涡激振动响应。
Then the vortex-induced vibration response of cables is calculated.
因而对桥梁涡激振动进行研究是很有必要的。
Thus it is necessary to study vortex-induced vibration of bridge.
海底管道涡激振动控制是管道设计中的重要问题。
The control of vortex vibration of submarine pipeline is very important in the design of submarine pipeline.
本文研究用有限元法计算桥梁涡激振动的时程响应。
This paper studies the calculation of vortex-induced responses of Bridges by finite element models.
单跨和多跨水下悬空管线在水流作用下发生涡激振动。
Vortex-excited vibration induced by fluid takes place on the underwater suspended pipelines.
并且，钝体截面的主拱在低风速下容易产生涡激振动。
The vortex shedding vibration will take place at the relative low wind speed because of arches blunt section.
海底管跨的涡激振动是引发管跨共振失效的主要因素。
Vortex induced vibration of submarine pipeline span is the major factor of resonance invalidation of pipeline.
涡激振动响应预报对于深水海洋结构物的设计是非常重要的。
The prediction of vortex-induced vibration is very important for the design of slender marine structures in deep water.
根据此模型，分析了低质量-阻尼因子圆柱体的涡激振动响应特性。
The response characteristics of cylinders at low mass-damping are analyzed by the propose model.
涡激振动预报对于深水环境中的细长海洋结构物的设计至关重要。
The prediction of vortex-induced vibration is very important for design of slender marine structures in deep water.
管跨结构的涡激振动分析是海底管线疲劳分析和安全评价的重要环节。
Vortex induced vibration of submarine pipeline span is the major factor of resonance invalidation of pipeline.
结果表明，约化速度、拖缆倾角、拖曳速度等是影响涡激振动的主要因素。
Result shows that the dip Angle, the towed velocity and reduced velocity are main influence factors to the vortex-induced vibration of a circular cylinder.
试验结果表明：在试验的各状态下，主梁及桥塔均未发现有害的涡激振动。
The test showed that: in each test state, the harmful vortex-induced vibration has not been found in the main beams and the bridge towers.
桥梁涡激振动是大跨度桥梁在低风速下很容易出现的一种重要的气动弹性现象。
Vortex-induced vibration of the bridge is an important aeroelastic phenomena, it is easy for long-span bridges to occur Vortex-induced vibration.
通过试验得到了涡激振动的临界风速，并分析了栏杆、风攻角对涡激振动的影响。
Through experiments, the critical wind speed of the vortex-induced vibration is received. And analyzed effect of the railing and the wind attack angle on the vortex-induced vibration.
通过节段的静力和弹簧悬挂动力试验，对H型吊杆的驰振和涡激振动性能进行分析。
On the basis of static aerodynamic force tests and dynamic response tests, the galloping and (vortex-induced) oscillation performances of H-shaped booms were investigated.
从管跨的可靠性分析中看出，由海浪和海流引起的涡激振动是破坏管跨的主要因素之一。
From the reliability analysis of span, vortex-induced vibration resulting from ocean wave and current is one of primary destroy factors.
岸边起重机杆件的风致振动的主要表现形式为横风向的振动，按发生原因称为涡激振动。
The main form of the rod wind vibration is crosswind vibration, called the vortex-induced vibration according to the reason.
并分析了栏杆、风速和风向角对涡激振动的影响以及未发现明显的大幅涡激振动的原因。
And analyzed the effect of the railing, the wind speed and wind direction on the vortex-induced vibration, and the reason for no obvious vortex-induced vibration.
试验结果表明：主梁推荐方案、主梁比较方案一和主梁比较方案二都会发生不同程度的涡激振动。
The test results showed that: the recommended Scheme of girder, the first comparative scheme of girder and the second comparative scheme of girder all occur vortex-induced vibration.
分析了斜拉桥拉索涡激振动、风雨激振、尾流驰振和抖振的振动机理，并总结了控制这些振动的措施。
The vortex-induced vibration, rain-wind-induced vibration, wake galloping and buffeting of the cable of a cable-stayed bridge are analyzed, and relavant control measures are summarized.
其结果表明，管跨的同向涡激振动一般不会对管线系统的正常运行构成威胁，而管跨的横向共振则必须予以消除。
The results show that in line vibration can not bring serious danger to submarine pipeline system in most cases, while cross flow vibration must be eliminated.
该模型的计算结果表明，立管的模态振型、模态频率与涡激振动响应高度耦合，并且对于低质量比的情况尤为明显。
It shows that the modal shape and mode frequency are highly coupled with the VIV response of a Marine riser with low mass ratio.
本文为实际工程应用课题，重点在于研究桅杆振动固有频率的边界条件分析和在风激励下的涡激振动响应的计算研究。
This research subject is done for engineering application, mainly about boundary condition analysis of mode calculation and analysis of vortex-excited response for barrel-shaped mast.
建立了深水环境下涡激振动的非线性微分方程，给出疲劳计算公式，并对比了浅水控制方法与深水控制方法计算的临界跨长。
This paper establishes nonlinear differential equations, gives the fatigue equations and compares the critical spanning of pipeline of calculated results from the shallows and deep water.
节段模型风洞试验是研究涡激共振风速锁定范围和最大振动幅值的一种重要手段。
Wind tunnel test of sectional model is an important means for determining lock-in region of wind speed and maximal amplitude of vortex-excited resonance.
节段模型风洞试验是研究涡激共振风速锁定范围和最大振动幅值的一种重要手段。
Wind tunnel test of sectional model is an important means for determining lock-in region of wind speed and maximal amplitude of vortex-excited resonance.
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