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Device and method for testing tension and torsion coupling performance of flexible tube cable structure

A duct cable and flexible technology, which is applied in the field of testing and testing devices under the coupling conditions of tension and torsion, can solve the problems of prone to errors, complicated testing operations, and lack of ideal testing solutions and testing equipment. Convenience, coupled effects with precise effects

Pending Publication Date: 2018-05-29
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing methods and equipment, there is no ideal test plan and test equipment for the test under the tension-torsion coupling condition.
Most of the existing equipment is based on the superposition of a single working condition to realize the coupling of combined working conditions. This superimposed test method has the disadvantages of complex test operation, easy to produce errors, and low test accuracy.

Method used

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  • Device and method for testing tension and torsion coupling performance of flexible tube cable structure
  • Device and method for testing tension and torsion coupling performance of flexible tube cable structure
  • Device and method for testing tension and torsion coupling performance of flexible tube cable structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1-Figure 3 As shown, a device for testing the tensile and torsion coupling performance of a flexible umbilical cable structure includes:

[0028] Torque limiter 1, one end of which is fixed, and the other end is provided with a first umbilical joint 3 for connecting one end of flexible umbilical cable 2;

[0029] The twisted screw rod 4 has a spiral protrusion 5 on its outer wall, and one end thereof is provided with a second umbilical joint 6 for connecting the other end of the flexible umbilical cable 2;

[0030] The spiral baffle 7 has a through hole 8 through which the twisted screw rod 4 passes, and the through hole 8 is provided with a spiral groove 9 engaged with the spiral protrusion 5;

[0031] And a tension actuator 10 for driving the twisted screw rod 4 to screw feed relative to the through hole 8 .

[0032] Also includes a base 11, the two ends of the base 11 are respectively provided with a first triangle reaction frame 12 and a second tri...

Embodiment 2

[0034] A method for testing the tensile and torsion coupling performance of a flexible umbilical cable structure using the device for testing the tensile torsion coupling performance of a flexible umbilical cable structure described in Example 1. The two ends of the flexible umbilical cable sample cable 2 are respectively connected to the first tube The cable joint 3 is connected to the second pipe joint 6;

[0035] The flexible pipe cable sample cable 2 is a typical steel pipe composite umbilical cable sample cable, with a length of 2m and an outer diameter of 8 inches;

[0036] Adjusting the torque limit of the torque limiter 1, the torque limit of the torque limiter 1 is set to the design maximum torque value of the typical steel pipe composite umbilical cable;

[0037] The tension actuator 10 exerts tension and rotation on the flexible umbilical cable 2 through the torsion screw rod 4 .

Embodiment 3

[0039] A method for testing the tensile and torsion coupling performance of a flexible umbilical cable structure using the device for testing the tensile torsion coupling performance of a flexible umbilical cable structure described in Example 1. The two ends of the flexible umbilical cable sample cable 2 are respectively connected to the first tube The cable joint 3 is connected to the second pipe joint 6;

[0040] The flexible pipe cable sample cable 2 is a marine flexible riser sample pipe with a length of 2m and an outer diameter of 12 inches;

[0041] Adjust the torque limit value of the torque limiter 1, the torque limit value of the torque limiter 1 is set to the design maximum torque value of the marine flexible riser sample pipe;

[0042] The tension actuator 10 exerts tension and rotation on the flexible umbilical cable 2 through the torsion screw rod 4 .

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Abstract

The invention discloses a device and a method for testing tension and torsion coupling performance of a flexible tube cable structure. The device for testing tension and torsion coupling performance of the flexible tube cable structure comprises a torsion limiter, a torsion screw rod, a spiral baffle and a tension actuator, wherein one end of the torsion limiter is fixed, and the other end of thetorsion limiter is provided with a first tube cable connector for being connected with one end of a cable sample of a flexible tube cable; the outer wall of the torsion screw rod is provided with a spiral bulge, and one end of the torsion screw rod is provided with a second tube cable connector for being connected with the other end of the cable sample of the flexible tube cable; the spiral baffleis provided with a through hole for the torsion screw rod to pass through, and the through hole is provided with a spiral groove meshed with the spiral bulge; and the tension actuator is used for driving the torsion screw rod to perform screw feed relative to the through hole. A single actuator is adopted to finish application of two working conditions, and the coupling effect of the two workingconditions is more accurate than that obtained by adopting two actuators to apply different working conditions; and for a tension and torsion fatigue test (especially fatigue acceleration test), higher speed and better convenience are realized.

Description

technical field [0001] The invention relates to the technical field of experimental testing, in particular to an experimental test device for the tensile and torsion coupling working conditions of a marine flexible umbilical cable helically wound structure, which is suitable for the experimental test of simulating the in-situ pulling and torsion coupling working conditions of flexible umbilical cables in marine engineering. Background technique [0002] Human survival and social development are inseparable from the energy base, so energy issues have attracted much attention. Oil and natural gas resources are one of the essential energy sources for people's lives. Nowadays, land oil and gas resources are facing the status quo of increasing difficulty in exploitation, low output, and resource depletion. 71% of the earth's area is covered by oceans, and there are also abundant oil and gas resources in the oceans. Therefore, marine oil and gas resources have become the main sour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/22G01N3/32
CPCG01N3/08G01N3/22G01N3/32G01N2203/0017G01N2203/0021G01N2203/0026G01N2203/0073G01N2203/028
Inventor 阎军胡海涛苏琦周保顺刘静昭许金锦熊飞宇于涛杨志勋许琦卢青针岳前进
Owner DALIAN UNIV OF TECH
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