Oceanographic engineering flexible tube cable stretching bending combination experimental facility and experimental method

A technology of marine engineering and experimental devices, applied in the direction of measuring devices, strength characteristics, instruments, etc., to achieve superior flexibility, simple devices, and reduce the overall structure weight

Active Publication Date: 2017-02-22
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tensile-bending combination test of flexible umbilical cables is the most important test for its practical application. Since domestic research on flexible umbilical cables is

Method used

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  • Oceanographic engineering flexible tube cable stretching bending combination experimental facility and experimental method
  • Oceanographic engineering flexible tube cable stretching bending combination experimental facility and experimental method
  • Oceanographic engineering flexible tube cable stretching bending combination experimental facility and experimental method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1-Figure 4 As shown in Fig. 1, a combination experimental device for flexible umbilical cables in marine engineering, including a fixed rotary joint 1, a four-point bending truss device 2 and an axial tension device 3,

[0040] The four-point bending truss device 2 includes an actuator I4, a connecting frame 5, a quadrangular frame I6 and a quadrangular frame II7, the connecting frame 5 is in the shape of a quadrangular pyramid and the bottom surface of the connecting frame 5 is rectangular, and the connecting frame The orthographic projection of the vertex of 5 on the bottom surface of the connecting frame 5 coincides with the center of the bottom surface of the connecting frame 5, and the four vertices of the bottom surface of the connecting frame 5 are respectively provided with the axis of the connecting frame 5. Straight parallel threaded rods 8, the vertices of the quadrilateral frame I6 are fixedly connected to the connecting frame 5 through the thr...

Embodiment 2

[0048] A combined tensile-bending test method for flexible pipe cables in marine engineering has the following steps:

[0049] S1, design the experimental device as described in embodiment 1;

[0050] S2. Connect one end of the umbilical cable 16 to the fixed rotary joint 1 through the umbilical cable joint, and the other end of the umbilical cable 16 passes through the quadrilateral frame I6 and the quadrilateral frame II7, and connects to the said umbilical cable joint through the umbilical cable joint. The movable rotary joint 10 is connected;

[0051] S3. Adjust the position of the movable rotary joint 10 so that the axis of the umbilical cable 16 coincides with the connection line, adjust the four-point bending truss device 2 to be located in the middle section of the umbilical cable 16, and adjust the umbilical cable 16 according to the diameter of the umbilical cable 16. The position of the nut 9 ensures that the actuator I4 can be loaded stably;

[0052] S4. Evenly o...

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PUM

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Abstract

The invention discloses an oceanographic engineering flexible tube cable stretching bending combination experimental facility and an experimental method. The experimental facility comprises a fixing rotary joint, a four-point bending truss device and an axial tension device. The experimental facility fully combines respective advantages of the four-point bending and the axial tension experiment equipment so that the middle part of the tube cable merely bears pure bending loads and tensile loads, thus realizing stretching bending combination loads under an ideal sate. Besides, the experimental facility has multiple functions and detachability, can conduct a four-point bending experiment and an axial tension respectively without influencing each other, thus realizing a goal of 'one machine, three functions'.

Description

technical field [0001] The invention relates to the field of ocean engineering flexible umbilical cable experiments, in particular to an ocean engineering flexible umbilical pull-bending combined experimental device and experimental method. Background technique [0002] my country's offshore oil and gas reserves are abundant, and most of them are distributed in deep waters such as the South China Sea. Submarine cables, umbilical cables and flexible pipelines are indispensable equipment in deep sea oil and gas exploitation. Such equipment can be collectively referred to as marine flexible umbilicals, and its structure is usually composed of corresponding functional components and strengthening components such as armored steel wires. According to different engineering requirements, pipe cables with corresponding functions should be selected; submarine cables are mainly responsible for providing electrical energy for subsea oil production equipment, umbilical cables are mainly...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/32
CPCG01N3/08G01N3/32G01N2203/0017G01N2203/0023G01N2203/0073G01N2203/0274
Inventor 杨志勋卢青针万睿阎军岳前进陈金龙尹原超吴尚华高博
Owner DALIAN UNIV OF TECH
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