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Sound source system for simulating underwater propeller noise

A propeller and noise technology, applied in the field of underwater noise simulation, can solve the problem of high speed

Active Publication Date: 2021-03-09
中国船舶重工集团有限公司第七一0研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the simulation of propeller cavitation noise requires a large number of bubbles of different sizes or to reach a certain critical speed. However, the current foreign devices for simulating propeller cavitation noise either cannot realize continuous bubbles of different sizes, or the speed is high, and general platforms cannot accomplish

Method used

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  • Sound source system for simulating underwater propeller noise
  • Sound source system for simulating underwater propeller noise
  • Sound source system for simulating underwater propeller noise

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Embodiment Construction

[0030] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] In order to solve the problem of simulating underwater propeller noise at low speed, it is proposed that this embodiment provides a sound source system for simulating underwater propeller noise.

[0032] Such as figure 1 and figure 2 As shown, the sound source system includes: a control unit 1, a high-pressure gas station 2, a valve control unit 3 and a noise simulation device 4; wherein the control unit 1 is used to control the electric control valve 15 in the high-pressure gas station 2 and the noise simulation device 4 The high-pressure gas station 2 is used to provide sufficient high-pressure air for system work; the valve control unit 3 is used to stabilize the pressure and flow rate of the high-pressure gas generated by the high-pressure gas station 2, and deliver high-pressure gas to the noise simulation device 4; noise simulation Device 4...

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Abstract

The invention discloses a sound source system for simulating underwater propeller noise. The sound source system can simulate hydrodynamic noise of an underwater propeller and cavitation noise of theunderwater propeller, achieves the simulation of the propeller noise in a low-speed dragging state, and achieves a purpose of simulating the real working process of a ship propeller. The sound sourcesystem comprises a control unit, a high-pressure gas station, a valve control unit and a noise simulation device; the control unit is used for controlling opening and closing of electric control valves in the high-pressure gas station and the noise simulation device; the high-pressure air station is used for providing enough high-pressure air for system work; the valve control unit is used for stabilizing the pressure and flow of high-pressure gas generated by the high-pressure gas station and conveying the high-pressure gas to the noise simulation device; the noise simulation device is dragged to work underwater and is used for simulating hydrodynamic noise and cavitation noise of an underwater propeller.

Description

technical field [0001] The invention relates to a sound source system, in particular to a sound source system for simulating underwater propeller noise, and belongs to the technical field of underwater noise simulation. Background technique [0002] Ship radiated noise is the noise generated by the mechanical operation and ship movement on the ship and radiated into the water. It is the ship noise received by the hydrophone at a certain distance from the ship. Because sound waves are currently the only and most effective form of energy that can travel long distances in the ocean, ship water noise has a major impact on ship survival and weaponry performance, and is an important indicator of ship concealment. [0003] Among them, propeller noise is a kind of ship radiation noise, which mainly includes propeller hydrodynamic noise and propeller cavitation noise. The propeller hydrodynamic noise is the noise generated by the turbulence of the propeller blades, which has strong ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15B63G13/00G06F119/10
CPCG06F30/15B63G13/00G06F2119/10Y02T90/00
Inventor 王思伟余靖袁倩唐君超杰李志远
Owner 中国船舶重工集团有限公司第七一0研究所
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