Method for automatically correcting physical property parameter of photoelectric composite submarine cable material

Abstract

A method for automatically correcting a physical property parameter of a photoelectric composite submarine cable material comprises: reading a physical property parameter file of a submarine cable optical fiber and automatically running the file by using an APDL (ANSYS Parametric Design Language) automated temperature field modeling script which is formed by an ANSYS parameterization design language; generating a theoretical temperature value of the submarine cable optical fiber; by a software development platform, calculating a temperature error value between an actually measured temperature value of the submarine cable optical fiber and the theoretical temperature value of the submarine cable optical fiber; by the software development platform, performing correction on the material physical property parameter of the submarine cable optical fiber with the temperature error value exceeding an allowed range, and updating the physical property parameter file of the submarine cable optical fiber by using the corrected material physical property parameter; and performing iteration to obtain a material physical property parameter that can enable the temperature error value between the actually measured temperature value of the submarine cable optical fiber and the theoretical temperature value of the submarine cable optical fiber to be within the allowed range. The method is efficient, simple, automatic, fast and convenient, and can greatly shorten the molding operation period, reduce personnel assignment needed for parameter correction and achieve double effects of efficient modeling and accurate establishment of a conductor temperature database.

Description

technical field [0001] The invention relates to a method for automatically correcting physical property parameters of a photoelectric composite submarine cable. Background technique [0002] During the construction and exploitation of offshore oil and gas resources, the power system of the offshore oil platform is an important part of the offshore oil and gas exploitation system, providing energy and power for the entire offshore oil exploitation system, ensuring normal subsea oil exploitation and power on the platform. It is required for daily operation, and the power supply and communication between platforms are carried out through photoelectric composite submarine cables (hereinafter referred to as submarine cables). Once the submarine cable fails, it will cause unimaginable huge losses. Conductor temperature, as an important parameter to evaluate the safety status of submarine cables, is an important factor in determining the life of submarine cables and an important b...

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Problems solved by technology

Although this method can also achieve the purpose of obtaining the conductor temperature by modeling the entire temperature field, it requires extremely long correction time and consumes a lot of manpower to complete the preparatory work of the submarine cable modeling data.

Moreover, for different submarine cables, the model calculation must be re-established every time, and the process of repeating work is extremely cumbersome

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