Underwater radiation noise assessment method for overall scheme of semi-submersible ocean platform

Abstract

The invention belongs to the technical field of semi-submersible type ocean platform vibration and noise reduction assessment, and particularly relates to an underwater radiation noise assessment method for an overall scheme of a semi-submersible ocean platform. The method comprises the following steps: performing semi-submersible type ocean platform overall scheme design analysis and structure modeling parameter combing; establishing a semi-submersible type ocean platform geometric structure simulation model; establishing a semi-submersible ocean platform structure statistical energy analysisand evaluation model based on a statistical energy analysis method; performing single machine radiation noise assessment; and performing combined condition underwater radiation noise assessment. Themethod provided by the invention is reasonable and easy to implement, overcomes the uncertainty of a conclusion obtained based on an artificial experience method in the existing semi-submersible oceanplatform overall scheme underwater radiation noise assessment, and can greatly improve the rationality and accuracy of an underwater radiation noise assessment result of the semi-submersible ocean platform overall scheme.

Description

technical field [0001] The invention belongs to the technical field of vibration reduction and noise reduction evaluation of semi-submersible ocean platforms, and in particular relates to an evaluation method for underwater radiation noise of the overall scheme of semi-submersible ocean platforms. Background technique [0002] With the increasing human demand for energy, the development of oil and gas is gradually moving from land to sea. Semi-submersible offshore platforms are widely used in the exploitation of offshore oil and gas resources. They mainly rely on their own power devices for positioning. The underwater radiated noise generated when the equipment is working is one of the important indicators to measure the acoustic performance of the semi-submersible offshore platform. As people pay more and more attention to the marine ecological environment, the calls for underwater radiation noise control of ships and offshore platforms are getting higher and higher. Theref...

AI Technical Summary

Problems solved by technology

[0004] At present, the domestic and foreign methods for evaluating the underwater radiation noise of the overall scheme of the semi-submersible offshore platform are mainly the "manual experience" analysis method, and no evaluation method based on quantitative calculation or simulation has been established.

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