A dynamic response device for measuring slender standpipe with uniform out-of-plane flow

A dynamic response and uniform technology, applied in the field of marine engineering, can solve the problems of difficult layout, inability to adjust the shape of the standpipe, and difficult vortex-induced vibration testing, etc., and achieve the effect of easy installation, easy upgrade and change

CN104458174BActive Publication Date: 2017-06-13SHANGHAI JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-06-13

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Abstract

The invention discloses a dynamic response device for measuring slender standpipes under uniform out-of-plane flow. The invention can realize the vortex-induced vibration test of standpipes under the action of 90-degree uniform flow; The safety factor of large-scale key installations; the depth of deep water tanks in marine engineering can be fully used to simulate the real Reynolds number vortex induced vibration of large pipe fittings; the width of deep water tanks in marine engineering can be fully used to arrange real-time monitoring equipment around large pipe fittings, and the model can be adjusted according to different needs The shape can be adjusted; the modular design is adopted, which has the advantage of being easy to install, easy to upgrade and change, and to meet different functional requirements.
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Description

technical field

[0001] The invention belongs to the field of marine engineering, and in particular relates to an experimental device for measuring the dynamic response of a slender standpipe under an out-of-plane uniform flow and simultaneously monitoring vortex-induced vibration (VIV). Background technique

[0002] Under the action of wind, wave and current, the marine floating structure will drive the catenary riser to make periodic reciprocating motions in the water, thereby generating a relative oscillating flow in the direction of riser movement, and this oscillating flow will encourage the standpipe to hang "Intermittent" vortex-induced vibration occurs in the section. In recent years, with the development of deep-sea petroleum systems, catenary risers have been widely used in engineering. The riser in the deep water environment can be regarded as a slender and flexible structure. At this time, the theory of small deformation is no longer applicable, which makes the p...

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Embodiment Construction

[0027] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0028] Such as Figure 1-12As shown, the embodiment of the present invention provides an out-of-plane uniform flow down measurement slender riser dynamic response test device, including a deep-sea riser module 1, a top boundary module 2, a bottom boundary module 3, a fixed module 4, and a top sliding module 5 , a bottom sliding module 6 and a measurement analysis control module 7, the two ends of the deep-sea riser module 1 are respectively connected to the top boundary module 2 and the bottom boundary module 3, and the fixed module 4 is connected to the top boundary module 2 and the top sliding module 5 connected, the deep-sea riser module 1 forms an angle of 90 degrees with the fixed module 4, the top sliding module 5 and the bottom sliding module 6 re...