Method for lowering noise of ship compartments

A cabin and noise technology, applied in the field of reducing ship cabin noise, can solve problems affecting work efficiency, endangering human health, etc., and achieve the effect of avoiding a large amount of workload

Inactive Publication Date: 2016-06-08
SHANGHAI MERCHANT SHIP DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ship noise can bring irritability to people, affect work efficiency, and even endanger human health in severe cases. Therefore, various effective measures must be taken to reduce vibration and noise

Method used

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  • Method for lowering noise of ship compartments
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Embodiment Construction

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments do not limit the scope of protection of the invention. Obviously, those of ordinary skill in the art can obtain other embodiments without creative work. It belongs to the protection scope of the present invention.

[0022] A method to reduce the noise in the cabin of a ship, using the following steps in the ship design stage:

[0023] 1). Separate the living cabin from the flue, and arrange the cabins with high noise requirements away from the noise source.

[0024] 2) Steps of laying sound-absorbing materials in the cabin, setting up sound-absorbing structures and applying sound-absorbing treatment measures to environmentally-friendly noise-reducing materials in the cabin, the sound-absorbing structure is as follows figure 1 As shown, it includes mineral wool 2 pasted on the deck or bulkhead 1, the deck or bulkhead is fixed to the L-shap...

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Abstract

The invention relates to a method for lowering noise of ship compartments. The method for lowering the noise of the ship compartments is characterized in that in a ship design stage, the following steps are adopted, specifically, (1) an accommodation and a flue are separately arranged, and the compartments with high noise requirement are arranged by being far away from a noise source; (2) sound absorption materials are laid in the compartments, and the sound absorption treatment is performed by arranging sound absorption structures and coating the interior of the compartments with environment-friendly noise-reduction materials; (3) the sound insulation treatment is conducted, specifically, lining plates and independent wall plates with large noise-reduction values are adopted, ceilings are adopted so that vertical transmission of the noise can be cut off, and sound insulation windows and sound insulation doors are selected; and (4) the step of a vibration attenuation and vibration isolation measure is performed, specifically, decks adopt vibration attenuation and vibration isolation structures, the ceilings adopt high-damping materials with elastic connection and high internal friction force on steel plate. According to the method for lowering the noise of the ship compartments, as the noise-reduction treatment is already performed on the compartments in the design stage, a large quantity of workload of rectification when the noise exceeds standards after ship construction is completed is avoided, and the requirements of IMO A.468(XII) and MSC.337(91) are met.

Description

Technical field [0001] The invention relates to a method for reducing noise in a cabin of a ship. Specifically, it refers to the method of reducing the noise in the ship's cabin during the ship design stage. Background technique [0002] Noise is a kind of sound wave and has all the characteristics of sound wave. From a physical point of view, noise refers to the sound in which changes in sound intensity and frequency are "irregularly" combined. Broadly speaking, all sounds that people don't need can be regarded as noise. Over 70dB is harmful to hearing, and continuous exposure to the environment with noise level of 85dB and above has the risk of permanent deafness. [0003] Currently, the International Maritime Organization (Internationalmarineorganization, IMO) has also issued a resolution MSC.337(91) onboard noise level rules, which amend and replace IMOA.468(XII) with the purpose of compulsorily restricting 1,600 gross tonnage and The noise on board of the new ships mention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B3/68
CPCB63B3/68
Inventor 张波莫继华郑天详戴玛丽石光伟
Owner SHANGHAI MERCHANT SHIP DESIGN & RES INST
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