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Ship noise reduction device

A technology for ships and pallets, which is applied in the field of ship noise reduction devices, can solve the problems of no major innovations, etc., and achieve the effects of saving economic costs, reducing vibration and sound radiation, and improving production yield

Inactive Publication Date: 2016-05-18
王晓芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The specific control measures for the overboard noise problem in the existing technology are mainly traditional methods such as sound absorption and flexible vibration isolation, and there is no major innovation

Method used

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  • Ship noise reduction device

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Embodiment Construction

[0009] The present invention will be further explained below in conjunction with the accompanying drawings.

[0010] A ship noise reduction device, characterized in that it includes a supporting plate 1, a hollow vibration-proof mass block 2, a sound-absorbing material 3 and a belt plate 4, the hollow vibration-proof mass block 2 is installed on the supporting plate 1, and the supporting plate The middle of the plate is disconnected, and the hollow vibration-absorbing mass is fixed between two supporting plates;

[0011] The sound-absorbing material 3 is polyurethane, and the average sound absorption coefficient in the 10-3K frequency band is over 85%. The hollow anti-vibration mass 2 is a high-shear modulus and high-density metal material. The cross-sectional size of the hollow anti-vibration mass 2 is about 8-10 times the thickness of the supporting plate, the weight 2 of the hollow anti-vibration mass block should be greater than 60 of the total weight of the solid an...

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Abstract

The invention discloses a ship noise reduction device. The ship noise reduction device is characterized by comprising a carrying board 1, a hollow damping mass block 2, a sound absorption material 3 and a band board 4. The hollow damping mass block 2 is installed on the carrying board 1. The middle portion of the carrying board is broken and the hollow damping mass block is fixed to the position between the two parts of the carrying board. The band board 4 is fixed to the hollow damping mass block 2. The sound absorption material 3 is installed on the band board 4. By the adoption of the ship noise reduction device, vibration and sound radiation in an engine compartment section of a ship are effectively reduced, the benefit ratio is high, economic cost is saved, the quality is guaranteed, and the production yield is increased.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a ship noise reduction device. Background technique [0002] The specific control measures for the noise problem between ships in the prior art are mainly traditional methods such as sound absorption and flexible vibration isolation, and there is no major innovation. Contents of the invention [0003] In view of the above problems, the technical problem to be solved by the present invention is to provide a ship noise reduction device with simple structure, poor interception and guaranteed quality. [0004] A ship noise reduction device, characterized in that it includes a supporting plate 1, a hollow vibration-proof mass block 2, a sound-absorbing material 3 and a belt plate 4, the hollow vibration-proof mass block 2 is installed on the supporting plate 1, and the supporting plate The middle of the plate is disconnected, and the hollow vibration-absorbing mass is fixed be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B17/00
Inventor 王晓芳
Owner 王晓芳
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