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

An offshore platform, radiated noise technology, applied in special data processing applications, instruments, electrical digital data processing and other directions, can solve problems such as quantitative calculation or simulation evaluation methods that have not yet been established, to overcome uncertainty, and the method is reasonable and easy to implement. , improve the effect of rationality and accuracy

Active Publication Date: 2019-07-23
HARBIN ENG UNIV
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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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  • Underwater radiation noise assessment method for overall scheme of semi-submersible ocean platform
  • Underwater radiation noise assessment method for overall scheme of semi-submersible ocean platform
  • Underwater radiation noise assessment method for overall scheme of semi-submersible ocean platform

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with the accompanying drawings.

[0051] The present invention provides a method for evaluating underwater radiation noise of the overall scheme of a semi-submersible offshore platform, which can be used to input the vibration excitation source of the equipment base of the lower floating body according to the overall design scheme of the semi-submersible offshore platform, and estimate the equipment stand-alone and combined work. In this case, the far-field sound pressure value of the semi-submersible offshore platform is converted into the total sound source level and frequency band sound source level of underwater radiated noise, and then compared with the requirements of the underwater radiated noise index, so as to realize the underwater radiated noise index of the overall plan. Risk assessment. Beneficial effects of the present invention: the method of the present invention is reasonable and easy ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23G06F2119/10
Inventor 庞福振高聪王雪仁缪旭弘魏征高晟耀李海超李玉慧
Owner HARBIN ENG UNIV
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