Device for testing the friction coefficient of outer surface of umbilical cable

Abstract

The invention discloses a device for testing the friction coefficient of the outer surface of an umbilical cable. The device comprises a lateral pressurizing mechanism, a contact panel, an axial stretching mechanism and a testing mechanism, the lateral pressurizing mechanism comprises a tensile testing machine and a tensile testing controller; the contact panel comprises an upper clamp and a lower clamp, the lower clamp is used for bearing an umbilical cable sample, and the upper clamp can move up and down under the driving of a tensile testing machine and is matched with the lower clamp to apply lateral extrusion force to the umbilical cable sample; the axial stretching mechanism comprises a chest expander and a calculator, and the chest expander is used for applying a stretching load in the horizontal direction to the umbilical cable sample; the testing mechanism comprises a camera, and the camera is used for recognizing creep displacement and friction displacement in real time. The invention further discloses an umbilical cable outer surface friction coefficient testing method based on the umbilical cable outer surface friction coefficient testing device. The method can effectively detect the friction coefficient of the outer surface of the umbilical cable, and is high in precision and small in error.

Description

technical field [0001] The invention relates to the technical field of umbilical cable manufacturing, in particular to an umbilical cable outer surface friction coefficient testing device and an umbilical cable outer surface friction coefficient testing method based on the umbilical cable outer surface friction coefficient testing device. Background technique [0002] As an important development model of deepwater oil and gas fields, the underwater production system is a new technology for the development of offshore oil and gas resources. The subsea production system returns the produced oil, gas and water multi-phase or single-phase fluids to the nearby underwater, surface or land through subsea wellheads, subsea production facilities partially or fully placed on the seabed, and subsea pipelines Relying on facilities to realize the development of offshore oil and gas fields. [0003] The umbilical cable is a complex cable composed of cables (electric power cables or signa...

AI Technical Summary

Problems solved by technology

[0004] At present, my country has carried out research work on the design and manufacture of umbilical cables, and has gradually mastered the design and manufacturing capabilities of underwater umbilical cables. However, in terms of testing and evaluation of umbilical cables, a systematic testing and evaluation system has not yet been formed.

In the prior art, the research work on umbilical cable testing mainly focuses on the testing of the bending stiffness, tensile strength, and tensile-bending combined load of the umbilical cable. Project research is not perfect

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