Laboratory testing method for sound scattering characteristics of oil spilling under ice based on sound-transparent floating body mold

A mold and floating body technology is applied in the field of laboratory testing of high-frequency sound scattering characteristics of oil spills under ice based on acoustically transparent floating body molds. Effect

Inactive Publication Date: 2021-05-25
中国船舶重工集团公司第七六〇研究所
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a multilayer medium of seawater-oil spill-ice layer and a method for testing the high-frequency sound scattering characteristics of this multilayer medium, so as to solve the problem of multilayer medium of seawater-oil spill-ice layer in the laboratory environment Acoustic scattering characteristic acquisition problem of

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  • Laboratory testing method for sound scattering characteristics of oil spilling under ice based on sound-transparent floating body mold
  • Laboratory testing method for sound scattering characteristics of oil spilling under ice based on sound-transparent floating body mold
  • Laboratory testing method for sound scattering characteristics of oil spilling under ice based on sound-transparent floating body mold

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Embodiment Construction

[0011] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

[0012] step one:

[0013] Multilayer media preparation of seawater-oil spill-ice. Select sound-transmitting and low-density materials to construct the buoyant mold, inject seawater with a depth of d1 into the buoyant mold as required, put it into a freezing facility to prepare a sea ice layer, and obtain a sea ice layer with a thickness of d2 ( figure 1 ).

[0014] Multilayer media preparation of seawater-oil spill-ice. Put the floating body mold upside down on the water surface, and inject oil into the oil layer with a thickness of d3 through the hose, use the buoyancy of seawater to lift the oil layer, and place a sound-transmitting oil-absorbing film between the oil and seawater, so that seawater-oil spill is established on the seawater layer - multi-layer medium of ice ( figure 2 )

[0015] Step two:

[0...

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Abstract

The invention provides a laboratory testing method for sound scattering characteristics of oil spilling under ice based on a sound-transparent floating body mold, and belongs to the field of under-ice oil spill disaster detection and underwater target sound scattering characteristic research. The laboratory testing method for sound scattering characteristics of oil spilling under ice based on the sound-transparent floating body mold is characterized by comprising the following steps: firstly, selecting a sound-transmitting and low-density material to construct a floating body mold, preparing a sea ice layer in the mold, inverting the floating body mold in a test water area, injecting oil from the lower part, and establishing a seawater-spilled oil-ice layer multi-layer medium; then designing a test water depth, and ensuring that the transmitted beam width is smaller than the multi-layer medium scale; and finally, carrying out a bottom-supported sound scattering characteristic test, and performing analyzing to obtain the sound scattering characteristic of the multilayer medium. The method has the beneficial effects that the floating body mold is constructed by utilizing the sound-transmitting and low-density material, and a seawater-spilled oil-ice layer multi-layer medium is prepared, so that the problem of uncontrollability of the ice layer and the oil layer in testing the high-frequency sound scattering characteristic of the under-ice spilled oil in a laboratory is solved, and the acoustic interference of the mold material is avoided.

Description

technical field [0001] The invention belongs to the field of oil spill disaster detection under ice and the research field of acoustic scattering characteristics of water targets, and relates to the research on the acoustic scattering characteristics of oil layers in seawater and the testing technology for the acoustic scattering characteristics of stratified liquids in water. Laboratory test method for high frequency acoustic scattering characteristics of underspill oil. Background technique [0002] On the shipping lanes near the polar regions, oil spills under the ice often exist in icy sea areas, causing serious environmental pollution risks to the ocean. However, when traditional satellite and radar monitoring technologies for marine oil spills are applied to the monitoring of subglacial oil spill disasters, it will be difficult to penetrate the sea ice layer. Therefore, it is urgent to develop new technologies for detecting subglacial oil spills. Due to the natural ad...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/02G01N29/22G01N1/28G01N1/42
CPCG01N29/04G01N29/02G01N29/22G01N29/222G01N1/28G01N1/42G01N2291/024
Inventor 贾兵张阳李桂娟陈云飞王睿张明伟高峰雍锦涛王振山
Owner 中国船舶重工集团公司第七六〇研究所
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