Dynamic response testing device for deep-sea elongated vertical pipe under vertical forced oscillation

A technology of forced oscillation and dynamic response, applied in the field of marine engineering, can solve the problems of difficult layout, inability to adjust the shape of the standpipe, and inability to perform forced oscillation experiments, etc., and achieve the effect of easy installation, easy upgrade and change

Active Publication Date: 2015-03-11
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

Analyzing this test technology, it is found that its disadvantages are: 1. Considering the depth of the towing pool, it is generally only possible to simulate the vortex-induced vibration of small-scale pipe fittings, and it is difficult to effectively test the vortex-induced vibration at the real Reynolds number. 2. It is not easy The underwater monitori...

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  • Dynamic response testing device for deep-sea elongated vertical pipe under vertical forced oscillation
  • Dynamic response testing device for deep-sea elongated vertical pipe under vertical forced oscillation
  • Dynamic response testing device for deep-sea elongated vertical pipe under vertical forced oscillation

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Embodiment Construction

[0026] 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.

[0027] Such as Figure 1-11As shown, the embodiment of the present invention provides a dynamic response test device of a deep-sea slender riser under vertical forced oscillation, including a deep-sea riser module 1, a top boundary module 2, a bottom boundary module 3, and a top vertical sliding module 4 , the top sliding module 5, the bottom fixed module 6, the measurement analysis control module 7, the top boundary module 2 is connected with the deep-sea riser module 1 by screws 11, and the top boundary module 2 is fixed on the top vertical sliding module 4 , the bottom boundary module 3 is connected to the deep-sea riser module 1 through screws I22, a bottom fixing plate is welded on the bottom fixing module 6, and one end of the top vertical sliding ...

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Abstract

The invention discloses a dynamic response testing device for a deep-sea elongated vertical pipe under vertical forced oscillation. By the dynamic response testing device, vortex-induced vibration testing of the vertical pipe under vertical forced oscillation action can be realized, safety coefficient in large pipe mounting can be increased by fully utilizing a lifting pedestal of an oceaneering deepwater pool, real Reynolds number vortex-induced vibration of the large pipe can be simulated by fully utilizing depth of the oceaneering deepwater pool, realtime monitoring equipment can be arranged around the large pipe by fully utilizing width of the oceaneering deepwater pool, and shape of a model can be adjusted according to different needs. Due to adoption of modularized design, the dynamic response testing device has the advantages that the dynamic response testing device is convenient to mount, upgrade and modify and meets different functional requirements.

Description

technical field [0001] The invention belongs to the field of marine engineering, and in particular relates to a dynamic response testing device for a deep-sea slender riser under vertical forced oscillation. 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 problem of vortex-induced vibration of the riser more prominent. The analysis of...

Claims

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Application Information

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IPC IPC(8): G01M7/02
Inventor 马磊鑫陈逸凡付世晓林易欧绍武蔡曦
Owner SHANGHAI JIAO TONG UNIV
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