A method for reducing noise in the working environment of underwater detection equipment

Abstract

The invention discloses a method for reducing noise in the working environment of underwater detection equipment. Determine its impact on the noise generated in the bulbous bow dome; compare the noise impact generated in the bulbous bow dome with the maximum noise impact value that the underwater detection equipment can withstand; Acoustic baffle and sound-absorbing baffle; the present invention carries out three-dimensional modeling and acoustic simulation analysis on the bulbous bow dome where the underwater detection equipment is placed, and selects different noise reduction treatments according to noise characteristics and sizes, which can improve noise reduction. By comparing the noise impact generated in the bulbous bow dome with the maximum noise impact value that the underwater detection equipment can withstand, according to the comparison results, the noise reduction measures for the bulbous bow dome are reasonably selected to reduce The noise effect is stable.

Description

technical field [0001] The invention relates to the technical field of noise reduction, in particular to a method for reducing noise in the working environment of underwater detection equipment. Background technique [0002] The bulbous bow dome of modern large and medium-sized ships is mostly equipped with underwater detection equipment, and its performance is affected by the acoustic environment in the bulbous bow dome, the flow noise from the front of the bulbous bow dome, the stern The propeller noise and mechanical equipment vibration noise both interfere with the normal operation of the underwater acoustic detection equipment. [0003] At present, the acoustic baffle is gradually applied to the bulbous bow dome as a noise reduction structure to reduce the water-borne noise from the stern generated by propellers and mechanical equipment. The structural design of the acoustic baffle mainly focuses on metal and In terms of low-density foam materials, the overall performa...

AI Technical Summary

Problems solved by technology

[0003] At present, the acoustic baffle is gradually applied to the bulbous bow dome as a noise reduction structure to reduce the water-borne noise from the stern generated by propellers and mechanical equipment. The structural design of the acoustic baffle mainly focuses on metal and In terms of low-density foam materials, the overall performance of the sound baffle is rarely considered from the perspective of improving the sound field environment in the bulbous bow dome. When performing noise reduction processing on underwater detection equipment, traditional methods rarely have the effect of different frequency spectrums. Targeted noise reduction processing is often carried out in a unified manner. In fact, the noise spectrum received by underwater detection equipment in all directions in the bulbous bow dome is different, so a unified method is adopted. The effect of noise reduction processing is not good, therefore, the present invention proposes a method for noise reduction in the working environment of underwater detection equipment to solve the deficiencies in the prior art