CN-122016025-A - Ship radiation noise measuring system and double-layer cylindrical array measuring device

CN122016025ACN 122016025 ACN122016025 ACN 122016025ACN-122016025-A

Abstract

The invention discloses a ship radiation noise measuring system and a double-layer cylindrical array measuring device, wherein the cylindrical array measuring device comprises a round bottom supporting plate, a round top supporting plate, a supporting tube, a group of hydrophone vibrators, a distance measuring transducer, a supporting base and an electronic cabin, wherein the opposite ends of the supporting tube are respectively arranged at the middle part of the bottom supporting plate and the middle part of the top supporting plate, the opposite ends of the hydrophone vibrators are respectively arranged at the periphery of the bottom supporting plate and the periphery of the top supporting plate, the distance measuring transducer is arranged at the top supporting plate, the supporting base is arranged below the bottom supporting plate, the electronic cabin is surrounded by the supporting base, and the hydrophone vibrators are respectively connected to the electronic cabin.

Inventors

ZHANG XUEBO
CAO DENGYU
CHAO FUBIN
LV ZIMING

Assignees

云南保利天同水下装备科技有限公司
海底鹰深海科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250814

Claims (10)

1. Double-deck cylindrical battle array measuring device, its characterized in that includes: a circular frame body; Electronic cabin, and A group of hydrophone oscillators, wherein the electronic cabin and the hydrophone oscillators are respectively arranged on the frame body, and the hydrophone oscillators are respectively connected to the electronic cabin, wherein one part of the hydrophone oscillators is positioned on the inner layer to form an inner layer oscillator, and the other part of the hydrophone oscillators is positioned on the outer layer to form an outer layer oscillator.
2. The double-layer cylindrical array measuring apparatus according to claim 1, wherein the frame body comprises a circular bottom support plate, a circular top support plate, and a support tube, the bottom and top of the support tube being mounted to the middle of the bottom support plate and the middle of the top support plate, respectively, the electronic capsule being mounted to the bottom support plate, the bottom and top of each hydrophone vibrator being mounted to the bottom support plate and the top support plate, respectively, or The distance between the central axis of the outer vibrator and the central axis of the support tube is 2 times that between the central axis of the inner vibrator and the central axis of the support tube, the distance between the central axis of the inner vibrator and the central axis of the support tube is 2 times that between the central axes of two adjacent hydrophone vibrators, or The double-layer cylindrical array measuring device comprises a group of protective strips, wherein the opposite ends of each protective strip are respectively arranged on the bottom supporting plate and the top supporting plate and are positioned on the outer layer of the hydrophone vibrator, or The double-layer cylindrical array measuring device includes a ranging transducer mounted to the top support plate and connected to the electronics pod.
3. The double-layer cylindrical array measurement device of claim 2, wherein the double-layer cylindrical array measurement device comprises a rudder mounted on top of the support tube and above the top support plate.
4. The double-layer cylindrical array measuring apparatus according to claim 2, wherein the hydrophone vibrator comprises a carbon fiber rod, a group of hydrophone array elements, two mounting bases, and a vibrator case, one group of the hydrophone array elements is provided along an extending direction of the carbon fiber rod, one of the mounting bases is mounted to opposite ends of the carbon fiber rod, and the vibrator case is formed at the carbon fiber rod, the hydrophone array elements, and the mounting bases such that the vibrator case wraps the carbon fiber rod, the hydrophone array elements, and a part of the mounting bases, one of the mounting bases is mounted to the bottom support plate, and the other of the mounting bases is mounted to the top support plate.
5. The double-layer cylindrical array measurement device according to claim 2, wherein the electronic compartment is cylindrical in shape, and a central axis of the electronic compartment and a central axis of the support tube coincide.
6. The ship radiation noise measurement system is characterized by comprising two double-layer cylindrical array measurement devices which are arranged at intervals, wherein each double-layer cylindrical array measurement device comprises: A circular frame body, wherein the frame body comprises a bottom support plate, a top support plate, a support tube and a suspension assembly, the bottom support plate and the top support plate are circular, the bottom of the support tube is arranged in the middle of the bottom support plate, the top of the support tube is arranged in the middle of the top support plate, and the suspension assembly is arranged below the bottom support plate; A group of hydrophone oscillators, wherein the bottoms of the hydrophone oscillators are respectively arranged on the bottom supporting plates, the tops of the hydrophone oscillators are respectively arranged on the top supporting plates, and the hydrophone oscillators are respectively arranged on the frame body, one part of the hydrophone oscillators are positioned on the inner layer to form an inner layer oscillator, and the other part of the hydrophone oscillators are positioned on the outer layer to form an outer layer oscillator; An electronics compartment, wherein the electronics compartment is mounted to the suspension assembly, and the hydrophone vibrators are connected to the electronics compartment, respectively.
7. The ship radiation noise measurement system of claim 6, wherein the electronic compartment comprises a compartment body, a compartment cover, a measurement transducer, an electronic component, a sacrificial anode, watertight terminals and a fitting, the compartment body having a compartment cavity, a compartment body groove and a threading hole, the compartment body groove being formed at an inner wall of the compartment body and near a cavity mouth of the compartment cavity, the threading hole extending from the compartment body groove to an outer surface of the compartment body, the compartment body being mounted to the suspension component, the compartment cover having an insertion portion and a compartment cover groove surrounding the insertion portion, the measurement transducer, the electronic component, the sacrificial anode and the watertight terminals being respectively provided to the compartment cover, the measurement transducer, the sacrificial anode and the watertight terminals being each exposed to the outer surface of the compartment cover, the compartment cover being housed in the compartment body and the compartment body groove being inserted into the compartment body and the compartment body groove being threaded into the compartment body groove, the compartment body groove being formed at the compartment body groove and the threading hole, respectively.
8. The marine vessel radiation noise measurement system of claim 7, wherein an inner surface of the hull has a hull bare area exposed at a bilge of the hull cavity, an inner surface of the hull has a first hull bare area, an outer surface of the hull has a second hull bare area, the electronic component is mounted to the hull and is conducted through the first hull bare area of the hull and a substrate of the hull, the sacrificial anode is mounted to the hull in such a manner that the sacrificial anode covers the second hull bare area, and the sacrificial anode is conducted through the second hull bare area and a substrate of the hull.
9. The ship radiation noise measurement system of claim 8, wherein the electronic compartment further comprises an elastic conductive portion, the elastic conductive portion being disposed at a bottom of the electronic component and being in conductive communication with the electronic component, the elastic conductive portion being pressed by the electronic component toward a bilge of the compartment and abutting the exposed compartment area of the compartment such that the elastic conductive portion conductively connects a base material of the compartment and the electronic component.
10. The vessel radiation noise measurement system of claim 8, wherein the electronic pod further comprises a mechanical sensor mounted to the pod cover and the mechanical sensor is connected to the electronic assembly.

Description

Ship radiation noise measuring system and double-layer cylindrical array measuring device Technical Field The invention relates to an electronic measuring instrument, in particular to a ship radiation noise measuring system and a double-layer cylindrical array measuring device, which are used as sound sensors in an underwater environment and are used for receiving and measuring ship radiation noise. Background In recent years, with the continuous progress of the vibration reduction and noise reduction levels of ships, the requirements for low-noise ship radiation noise measurement are also increasing. At present, the ship noise measurement array system at home and abroad is mainly based on a frequency domain constant beam width beam forming technology, adopts a linear array and a volume array, presents narrowband measurement properties, and is necessary to adopt a measurement mode of high-low frequency combination. Therefore, the measuring system adopts a large number of hydrophones, so that the measuring array is huge in size, and is unfavorable for arrangement and recovery, and the manufacturing and maintenance costs are high. In addition, the data of part of hydrophones can be only used for processing each time in narrow-band measurement, so that the utilization efficiency of the hydrophones is reduced. Disclosure of Invention It is an object of the present invention to provide a ship radiation noise measuring system and a double-layer cylindrical array measuring apparatus, wherein a part of a group of hydrophone vibrators of the double-layer cylindrical array measuring apparatus is positioned at an inner layer to form an inner layer vibrator and the other part is positioned at an outer layer to form an outer layer vibrator, in such a manner that the hydrophone vibrators are arranged more closely to significantly reduce the volume of the double-layer cylindrical array measuring apparatus, facilitate deployment and recovery, and facilitate reduction of construction and maintenance costs of the double-layer cylindrical array measuring apparatus. It is an object of the present invention to provide a ship radiation noise measurement system and a double-layer cylindrical array measurement device, wherein the hydrophone vibrators are equidistantly arranged to provide array gain, ensure distortion-free measurement of target signals, and facilitate shortening of the noise measurement period. According to one aspect of the present invention, there is provided a double layer cylindrical array measuring device comprising: a circular frame body; Electronic cabin, and A group of hydrophone oscillators, wherein the electronic cabin and the hydrophone oscillators are respectively arranged on the frame body, and the hydrophone oscillators are respectively connected to the electronic cabin, wherein one part of the hydrophone oscillators is positioned on the inner layer to form an inner layer oscillator, and the other part of the hydrophone oscillators is positioned on the outer layer to form an outer layer oscillator. According to one embodiment of the invention, the frame body comprises a circular bottom support plate, a circular top support plate and a support tube, wherein the bottom and the top of the support tube are respectively arranged in the middle of the bottom support plate and the middle of the top support plate, the electronic cabin is arranged in the bottom support plate, and the bottom and the top of each hydrophone vibrator are respectively arranged in the bottom support plate and the top support plate. According to one embodiment of the invention, the distance between the central axis of the outer vibrator and the central axis of the support tube is 2 times the distance between the central axis of the inner vibrator and the central axis of the support tube, and the distance between the central axis of the inner vibrator and the central axis of the support tube is 2 times the distance between the central axes of two adjacent hydrophone vibrators. According to one embodiment of the invention, the double layer cylindrical array measuring device comprises a set of guard bars, opposite ends of each guard bar being mounted to the bottom support plate and the top support plate, respectively, and the guard bars being located on the outer layer of the hydrophone vibrator. According to one embodiment of the invention, the double-layer cylindrical array measuring device comprises a distance measuring transducer, which is mounted to the top support plate and which is connected to the electronics compartment. According to one embodiment of the invention, the double-layer cylindrical array measuring device comprises a rudder, which is mounted on top of the support tube and which is located above the top support plate. According to one embodiment of the invention, the hydrophone vibrator comprises a carbon fiber rod, a group of hydrophone array elements, two mounting bases and a vibrator shell, wherein one group of hyd