阅读说明：本技术 一种用于船载高频声呐的新型透声窗 (Novel sound-transmitting window for shipborne high-frequency sonar ) 是由 李东升 俞白兮 丁逸飞 张正伟 胡东森 于 2020-05-11 设计创作，主要内容包括：本发明涉及舰船水下探测设备技术领域,尤其是一种用于船载高频声呐的新型透声窗,包括透声窗壳板,透声窗壳板镶嵌在水舱壳板中且二者密封配合,高频声呐固定在水舱内部,透声窗壳板划分为若干非透声抑振降噪区和若干透声区,透声区和高频声呐中的声呐阵面相对间距布置,本发明的高频声呐固定在水舱内部,水舱本身可以通过水密舱盖密封,也可通过排水泵抽排水,水舱既能保护高频声呐,当需要维护和检修高频声呐时,将水舱内部的水排出,人便能进入水舱内部维修高频声呐,较为方便高频声呐中的声呐阵面面向透声窗壳板的透声区,为声呐使用时提供低透声损失和高强度的透声窗,满足高性能探测的应用需求。(The invention relates to the technical field of ship underwater detection equipment, in particular to a novel sound-transparent window for a ship-borne high-frequency sonar, which comprises a sound-transparent window shell plate, wherein the sound-transparent window shell plate is embedded in a water tank shell plate and is in sealing fit with the water tank shell plate, the high-frequency sonar is fixed in the water tank, the sound-transparent window shell plate is divided into a plurality of non-sound-transparent vibration-damping noise-reduction areas and a plurality of sound-transparent areas, and sonar array surfaces in the sound-transparent areas and the high-frequency sonar are arranged at intervals relatively, the high-frequency watertight sonar is fixed in the water tank, the water tank can be sealed by a tank cover and can be pumped and drained by a drainage pump, the water tank can protect the high-frequency sonar, when the high-frequency sonar needs to be maintained and overhauled, water in the water tank can enter the water tank to maintain the high-frequency sonar, the sonar array surfaces in the high-frequency sonar can be conveniently used for providing a low sound-transparent window with high-intensity sonar array surface when the sonar is used, the application requirement of high-performance detection is met.)

1. The utility model provides a novel sound-transparent window for on-board high frequency sonar which characterized in that: including penetrating acoustic window housing plate (51), penetrating acoustic window housing plate (51) are inlayed in the sump housing plate and the two sealed cooperation, and inside high frequency sonar (1) was fixed in the sump, and penetrating acoustic window housing plate (51) divide into a plurality of non sound-penetrating vibration-damping noise reduction zone (54) and a plurality of sound-penetrating area, and the relative interval of sonar wavefront in sound-penetrating area and high frequency sonar (1) arranges.

2. The novel acoustic window for the shipborne high-frequency sonar according to claim 1, wherein: high frequency sonar (1) is surveyed for the ship side, and high frequency sonar (1) is fixed on bottom of the ship shell plate (32) of water hold through installing support (2), and the sonar wavefront in high frequency sonar (1) is inlayed in ship side shell plate (31) towards the face of ship side shell plate (31) of water hold, sound-transparent window shell plate (51).

3. The novel acoustic window for the shipborne high-frequency sonar according to claim 1, wherein: high-frequency sonar (1) is surveyed for the hull bottom, and high-frequency sonar (1) is fixed on hull side shell plate (31) through installing support (2), and the sonar wavefront in high-frequency sonar (1) is towards the face of hull bottom shell plate (32), and sound-transparent window shell plate (51) are inlayed in hull bottom shell plate (32).

4. The novel acoustic window for the shipborne high-frequency sonar according to claim 1, wherein: high frequency sonar (1) is multifrequency section combination sonar array, the sonar wavefront of high frequency sonar (1) includes first sonar emission front (11), first sonar receiving front (12), second sonar receiving front (13) and second sonar emission front (14), pass through sound window apron (51) and go up to divide and have first pass through sound zone (55) that correspond with first sonar emission front (11), and second pass through sound zone (56) that first sonar receiving front (12) correspond, and third pass through sound zone (57) that second sonar receiving front (13) correspond, and fourth pass through sound zone (58) that second sonar emission front (14) correspond, it has four non-pass through sound vibration suppression quadrangles (54) to divide on pass through sound window apron (51), four non-pass through sound suppression quadrangles (54) of falling vibration are arranged in four of non-pass through sound suppression quadrangle corner, first pass through sound zone (55), second pass through sound zone (56), The third sound transmission region (57) and the fourth sound transmission region (58) are sequentially arranged in parallel in a quadrangle surrounded by the four non-sound-transmission vibration-suppression noise-reduction regions (54), the first sound transmission region (55), the second sound transmission region (56), the third sound transmission region (57), the fourth sound transmission region (58) and the non-sound-transmission vibration-suppression noise-reduction regions (54) are separated by reinforcing ribs (59) to form independent regions, the sound-transmission window shell plate (51) is attached to a first damping material in the non-sound-transmission vibration-suppression noise-reduction regions (54), and the reinforcing ribs (59) are fixed on the sound-transmission window shell plate (51).

5. The novel acoustic window for the shipborne high-frequency sonar according to claim 1, wherein: the high-frequency sonar array is a single-frequency-band transceiving split sonar array, a sonar array face of the high-frequency sonar array (1) comprises a first sonar emission array face (11) and a first sonar receiving array face (12), a first sound-transmitting area (55) corresponding to the first sonar emission array face (11) and a second sound-transmitting area (56) corresponding to the first sonar receiving array face (12) are divided on a sound-transmitting window shell plate (51), two non-sound-transmitting vibration-suppressing and noise-reducing areas (54) are divided on the sound-transmitting window shell plate (51), the first sound-transmitting area (55) is arranged between the two non-sound-transmitting vibration-suppressing and noise-reducing areas (54), the first sound-transmitting area (55) and the second sound-transmitting area (56) are arranged in a close mode, the first sound-transmitting area (55), the second sound-transmitting area (56) and the non-sound-transmitting vibration-suppressing and noise-reducing areas (54) are separated by reinforcing ribs (59), and the sound-transmitting window shell plate (51) is attached to the first sound-transmitting vibration-suppressing and noise-reducing area, the reinforcing ribs (59) are fixed on the sound-transmitting window shell plate (51).

6. The novel acoustic window for the shipborne high-frequency sonar according to claim 1, wherein: the high-frequency sonar array is combined by receiving and transmitting a single frequency band, the high-frequency sonar array (1) comprises 1 sonar array face for transmitting and receiving, a first sound-transmitting area (55) corresponding to the shared sonar array face is divided on a sound-transmitting window shell plate (51), six non-sound-transmitting vibration-suppressing noise-reducing areas (54) are divided on the sound-transmitting window shell plate (51), the six non-sound-transmitting vibration-suppressing noise-reducing areas (54) surround the periphery of the first sound-transmitting area (55), the six non-sound-transmitting vibration-suppressing noise-reducing areas (54) and the first sound-transmitting area (55) are separated by reinforcing ribs (59) to form independent areas, the sound-transmitting window shell plate (51) is attached with first damping materials on the non-sound-transmitting vibration-suppressing noise-reducing areas (54), and the reinforcing ribs (59) are fixed on the sound-transmitting window shell plate (51).

7. The novel acoustic window for the shipborne high-frequency sonar according to claim 1, wherein: the sound-transmitting window shell plate (51) is made of a high-strength carbon fiber composite material, high-strength aramid fibers or high-strength polyethylene fibers are laid on the inner surface and the outer surface of the sound-transmitting window shell plate (51), the sound-transmitting window shell plate (51) and the reinforcing ribs (59) are made of the same material, and the sound-transmitting window shell plate (51) and the reinforcing ribs (59) are integrally formed.

8. The novel acoustic window for a shipborne high-frequency sonar according to any one of claims 4 to 6, wherein: the reinforcing rib (59) is formed by enclosing quadrilateral rib plates (591), partition plates (592) used for partitioning independent areas are arranged inside the quadrilateral rib plates (591), mounting holes (52) are formed in the periphery of the sound-transmitting window shell plate (51), flanges (33) are sleeved on the periphery of the quadrilateral rib plates (591), sealing gaskets (4) are arranged between the flanges (33) and the inner plate surface of the sound-transmitting window shell plate (51), the periphery of the outer plate surface of the sound-transmitting window shell plate (51) is pressed by pressing plates (6), the sound-transmitting window shell plate (51), the sealing gaskets (4) and the flanges (33) are fixed on the outer surface of the water tank through bolts (7), and the rib plates (591) are embedded into through holes formed in the quadrilateral water tank shell plate and used for mounting.

9. The novel acoustic window for the shipborne high-frequency sonar according to claim 1, wherein: the outer surface of the sound-transmitting window shell plate (51) is coated with antifouling paint, and sound-absorbing wedges (8) and second damping materials (9) are arranged on the inner surface of the water tank around the quadrilateral rib plate (591).

Technical Field

The invention relates to the technical field of ship underwater detection equipment, in particular to a novel sound-transmitting window for a ship-borne high-frequency sonar.

Background

In order to survey the marine environment and detect the landform and objects near the ship body, a high-frequency imaging sonar or frogman and a fish detection sonar array are usually hung on the side or the bottom of a marine detection ship, the detection frequency of the sonar array is basically between 30kHz and 1000kHz, and single-frequency or narrow-band frequency sweeping detection is mainly adopted during detection. High frequency formation of image sonar hangs and puts in topside or bottom, and the excitation that receives influences sonar array and its connection jib has the shake scheduling problem in navigating, influences detection precision and detection efficiency that will lead to surveying ship ability low speed navigation. And, survey the ship and sail to surveying the region, when high frequency imaging sonar array had a problem, the broadside or bottom were hung and are put the mode and be difficult to carry out maintenance and detection under water, lead to surveying the number of voyages extravagant, cause great manpower and financial loss. Install the sonar in surveying the cabin indoor, have not influenced by stream excitation and navigational speed, the advantage of convenient maintenance, nevertheless because the steel sheet hull is to the sound transmission loss of sound wave big, make the sonar array be difficult to carry out the sound wave and survey the work. In order to reduce the influence of navigation streaming on sonar array detection, the low-frequency sonar array (frequency range from hundreds of hertz to about 1 kilohertz) in the ship is installed in a cabin at the bow part of the ship at present, a glass fiber reinforced plastic shell plate is used as a sound transmission window, the thickness of the glass fiber reinforced plastic shell plate is about 10-24 mm in order to meet navigation strength requirements, and a support strength rib is a steel framework. However, according to the acoustic law, the glass fiber reinforced plastic shell plate and the steel skeleton supporting rib which are suitable for medium and low frequency are difficult to meet the detection of frequencies above tens of kilohertz and even megahertz, and are difficult to meet the dual requirements of high sound transmission and navigation strength required by high-frequency imaging sonar.

Disclosure of Invention

The applicant provides a novel sound-transparent window for shipborne high-frequency sonar aiming at the defects in the prior art, namely, the high-frequency sonar is protected, the maintenance and the overhaul of the sonar under water are facilitated, the sound-transparent window with low sound-transparent loss and high strength is provided for the sonar when in use, and the application requirement of high-performance detection is met.

The technical scheme adopted by the invention is as follows: the utility model provides a novel sound-transmitting window for on-board high frequency sonar, includes the sound-transmitting window housing plate, and the sound-transmitting window housing plate is inlayed in the sump housing plate and the two sealed cooperation, and the high frequency sonar is fixed inside the sump, and the sound-transmitting window housing plate divides into a plurality of non-sound-transmitting vibration-damping noise reduction district and a plurality of sound-transmitting district, and the relative interval of the sonar array face in sound-transmitting district and the high frequency sonar arranges.

As a further improvement of the above technical solution:

high-frequency sonar surveys for the ship side, and high-frequency sonar passes through the installing support to be fixed on the hull bottom shell plate in water hold, and the sonar array face in the high-frequency sonar is inlayed in the hull side shell plate towards the face of the hull side shell plate in water hold, sound-transparent window shell plate.

High-frequency sonar surveys for the hull bottom, and high-frequency sonar passes through the installing support to be fixed on the ship side housing plate, and the sonar array face in the high-frequency sonar is towards the face of hull bottom housing plate, and the sound-transparent window housing plate is inlayed in the hull bottom housing plate.

The high-frequency sonar is a multi-band combined sonar array, the sonar array surface of the high-frequency sonar comprises a first sonar emission array surface, a first sonar receiving array surface, a second sonar receiving array surface and a second sonar emission array surface, a first sound-transmitting area corresponding to the first sonar emission array surface, a second sound-transmitting area corresponding to the first sonar receiving array surface, a third sound-transmitting area corresponding to the second sonar receiving array surface and a fourth sound-transmitting area corresponding to the second sonar emission array surface are divided on the sound-transmitting window shell plate, four non-sound-transmitting vibration-suppressing noise-reducing areas are divided on the sound-transmitting window shell plate, the four non-sound-transmitting vibration-suppressing noise-reducing areas are arranged at four corners of the quadrangle, the first sound-transmitting area, the second sound-transmitting area, the third sound-transmitting area and the fourth sound-transmitting area are sequentially arranged side by side in the quadrangle formed by noise-reducing and surrounding the four non-transmitting vibration-suppressing noise-reducing areas, the sound-transmitting window shell plate is attached with a first damping material in a non-sound-transmitting vibration-suppressing noise-reducing area, and the reinforcing ribs are fixed on the sound-transmitting window shell plate.

The high-frequency sonar is a single-group frequency band receiving and dispatching separated sonar array, the sonar array face of high-frequency sonar comprises a first sonar emission array face, a first sonar receiving array face, a first sound-transmitting area corresponding to the first sonar emission array face and a second sound-transmitting area corresponding to the first sonar receiving array face are divided on a sound-transmitting window shell plate, two non-sound-transmitting vibration-damping noise-reduction areas are divided on the sound-transmitting window shell plate, the first sound-transmitting area is arranged between the two non-sound-transmitting vibration-damping noise-reduction areas, the first sound-transmitting area and the second sound-transmitting area are arranged in a close mode, the first sound-transmitting area, the second sound-transmitting area and the non-sound-transmitting vibration-damping noise-reduction areas are separated through reinforcing ribs to form independent areas, the sound-transmitting window shell plate is attached to a first damping material in the non-sound-transmitting vibration-damping noise-reduction areas, and the reinforcing ribs are fixed on the sound-transmitting window shell plate.

The high-frequency sonar is a single-frequency-band receiving and transmitting combined sonar array, the high-frequency sonar comprises 1 transmitting and receiving shared sonar array face, a first sound-transmitting area corresponding to the shared sonar array face is divided on a sound-transmitting window shell plate, six non-sound-transmitting vibration-suppressing noise-reducing areas are divided on the sound-transmitting window shell plate, the six non-sound-transmitting vibration-suppressing noise-reducing areas surround the periphery of the first sound-transmitting area, the six non-sound-transmitting vibration-suppressing noise-reducing areas and the first sound-transmitting area are separated by reinforcing ribs to form independent areas, the sound-transmitting window shell plate is attached to a first damping material in the non-sound-transmitting vibration-suppressing noise-reducing areas, and the reinforcing ribs are fixed on the sound-transmitting window shell plate.

The sound-transmitting window shell plate is made of high-strength carbon fiber composite materials, high-strength aramid fibers or high-polyethylene fibers are laid on the inner surface and the outer surface of the sound-transmitting window shell plate, the sound-transmitting window shell plate and the reinforcing ribs are made of the same material, and the sound-transmitting window shell plate and the reinforcing ribs are integrally formed.

The reinforcing rib is formed by enclosing a quadrilateral rib plate, a partition panel for partitioning into independent areas is arranged inside the quadrilateral rib plate, mounting holes are formed around the sound-transmitting window shell plate, a flange is sleeved on the periphery of the quadrilateral rib plate, a sealing gasket is arranged between the flange and the inner plate surface of the sound-transmitting window shell plate, the periphery of the outer plate surface of the sound-transmitting window shell plate is pressed by a pressing plate, the sound-transmitting window shell plate, the sealing gasket and the flange are fixed on the outer surface of the water tank through bolts, and the quadrilateral rib plate is embedded into a through hole for mounting formed in the water tank shell plate.

The outer surface of the sound-transmitting window shell plate is coated with antifouling paint, and sound-absorbing wedges and second damping materials are arranged on the inner surface of the water tank around the quadrilateral rib plate.

The invention has the following beneficial effects: the high-frequency sonar is fixed in the water tank, the water tank can be sealed through the watertight tank cover, and water can be pumped and drained through the drainage pump, the water tank can protect the high-frequency sonar, when the high-frequency sonar needs to be maintained and overhauled, water in the water tank is drained, people can enter the water tank to maintain the high-frequency sonar, and the high-frequency sonar is convenient to maintain. During specific installation, an installation water tank of the high-frequency sonar array is selected to be far away from the main engine room, the propeller and other parts, the influence of high-vibration noise of the ship body on sonar detection is prevented, and underwater cabins in the middle and at the bow part of the ship body are suggested to be selected. If the ship body vibrates greatly, vibration suppression measures are taken for the cabin near the water tank. The sonar array face in the high-frequency sonar faces the sound-transmitting area of the sound-transmitting window shell plate, so that the low-sound-transmission-loss and high-strength sound-transmitting window is provided for the sonar when in use, and the application requirement of high-performance detection is met.

Drawings

FIG. 1 is a layout structure diagram of a water tank for side detection of a high-frequency sonar ship according to the present invention.

FIG. 2 is a layout structure diagram of the water tank for detecting the bottom of the high-frequency sonar ship.

FIG. 3 is the structure diagram of the new sound-transparent window when the high-frequency sonar is a multi-band combined sonar array.

Fig. 4 is a structural diagram of a novel sound-transmitting window when the high-frequency sonar is a single-component frequency band transceiving split sonar array.

Fig. 5 is a structural diagram of a novel sound-transmitting window when a high-frequency sonar array is combined for transmitting and receiving a single-component frequency band.

Fig. 6 is a sectional view a-a of fig. 3.

Fig. 7 is a sectional view B-B of fig. 3.

Fig. 8 is a graph of the thickness of the acoustically transparent region of the present invention as a function of acoustic loss and frequency.

FIG. 9 is a diagram of an exemplary half-wavelength design of the acoustically transparent regions of the present invention.

Wherein: 1. high-frequency sonar; 11. a first sonar emission array plane; 12. a first sonar receiving array plane; 13. a second sonar receiving array surface; 14. a second sonar emission array surface; 2. mounting a bracket; 31. a side hull plate; 32. a bottom hull plate; 33. a flange; 4. sealing gaskets; 51. an acoustically transparent window skin; 52. mounting holes; 54. a non-sound-transmission vibration-suppression noise-reduction area; 55. a first acoustically transparent region; 56. a second acoustically transparent region; 57. a third acoustically transparent region; 58. a fourth acoustically transparent region; 59. reinforcing ribs; 591. a quadrilateral rib plate; 592. a partition panel; 6. pressing a plate; 7. a bolt; 8. a sound-absorbing wedge; 9. a second damping material.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

The novel sound-transmitting window for the shipborne high-frequency sonar of the embodiment comprises a sound-transmitting window shell plate 51, wherein the sound-transmitting window shell plate 51 is embedded in a water tank shell plate and is in sealing fit with the water tank shell plate, the high-frequency sonar 1 is fixed inside the water tank, the sound-transmitting window shell plate 51 is divided into a plurality of non-sound-transmitting vibration-damping noise-reducing areas 54 and a plurality of sound-transmitting areas, and the relative distance between the sound-transmitting areas and a sonar array surface in the high-frequency sonar 1 is arranged. The high-frequency sonar 1 is fixed in the water tank, the water tank can be sealed through the watertight tank cover, and water can be pumped and drained through the drainage pump, the water tank can protect the high-frequency sonar 1, when the high-frequency sonar 1 needs to be maintained and overhauled, water in the water tank is drained, people can enter the water tank to maintain the high-frequency sonar 1, and the high-frequency sonar 1 is convenient to maintain. During specific installation, the installation water tank of the high-frequency sonar array 1 is selected to be far away from the main engine room, the propeller and other parts, the influence of high vibration noise of the ship body on sonar detection is prevented, and the underwater cabins in the middle and the bow of the ship body are recommended to be selected. If the ship body vibrates greatly, vibration suppression measures are taken for the cabin near the water tank. The sonar array face in high frequency sonar 1 is towards the sound-permeable area of sound-permeable window lagging 51, provides the sound-permeable window of low sound-permeable loss and high strength for the sonar when using, satisfies the application demand of high performance detection.

When the high-frequency sonar 1 is used for ship side detection, the whole layout of the invention in a water tank is shown in figure 1, the high-frequency sonar 1 is fixed on a ship bottom shell plate 32 of the water tank through a mounting bracket 2, a sonar array surface in the high-frequency sonar 1 faces to the plate surface of a ship side shell plate 31 of the water tank, and a sound-permeable window shell plate 51 is embedded in the ship side shell plate 31. In order to reduce the influence of the side structure on the detection angle, the distance between the sonar front surface and the inner surface of the ship-side sound-transparent window shell plate 51 is preferably less than 5cm, but the size is not limited to this, and can be determined according to the sonar detection angle.

The high-frequency sonar 1 is used for ship bottom detection, the overall layout of the invention in a water tank is shown in figure 2, the high-frequency sonar 1 is fixed on a ship side shell plate 31 through a mounting bracket 2, the sonar front in the high-frequency sonar 1 faces the plate surface of a ship bottom shell plate 32, and a sound-transparent window shell plate 51 is embedded in the ship bottom shell plate 32. In order to reduce the influence of the bottom structure on the detection angle, the distance between the sonar array surface and the inner surface of the sound-transmitting window shell plate 51 at the bottom of the ship is preferably less than 5cm, but the size is not limited to the distance, and the distance can be determined according to the sonar detection angle.

When the high-frequency sonar 1 is a multi-band combined sonar array, with reference to fig. 3, the sonar front of the high-frequency sonar 1 includes a first sonar emission front 11, a first sonar reception front 12, a second sonar reception front 13 and a second sonar emission front 14, a first sound-transparent area 55 corresponding to the first sonar emission front 11, a second sound-transparent area 56 corresponding to the first sonar reception front 12, a third sound-transparent area 57 corresponding to the second sonar reception front 13 and a fourth sound-transparent area 58 corresponding to the second sonar emission front 14 are divided on the sound-transparent window housing plate 51, four non-sound-transparent vibration-suppressing and noise-reducing areas 54 are divided on the sound-transparent window housing plate 51, the four non-sound-transparent vibration-suppressing and noise-reducing areas 54 are arranged in a quadrilateral, the first sound-transparent area 55, the second sound-transparent area 56, the third sound-transparent area 57 and the fourth sound-transparent area 58 are arranged side by side in turn in a quadrilateral surrounding of the four non-transparent vibration-suppressing and noise-reducing areas 54, the first sound transmission area 55, the second sound transmission area 56, the third sound transmission area 57, the fourth sound transmission area 58 and the non-sound-transmission vibration-suppression noise-reduction area 54 are separated from each other by reinforcing ribs 59 to form independent areas, the sound-transmission window shell plate 51 is attached with a first damping material in the non-sound-transmission vibration-suppression noise-reduction area 54, and the reinforcing ribs 59 are fixed on the sound-transmission window shell plate 51. The ribs 59 serve to reinforce the structure and to divide the region. The height of the reinforcing rib 59 can be about 3-8cm, the thickness can be about 10cm, and the height can also be determined according to strength check. The arrangement of each sound-transparent functional area can be adjusted according to the sonar structure.

When the high-frequency sonar 1 is a single-frequency-band transceiving split sonar array, with reference to fig. 4, the sonar array of the high-frequency sonar 1 includes a first sonar emission array 11 and a first sonar receiving array 12, a first sound-transmitting area 55 corresponding to the first sonar emission array 11 and a second sound-transmitting area 56 corresponding to the first sonar receiving array 12 are divided on the sound-transmitting window shell plate 51, two non-sound-transmitting vibration-suppressing noise-reducing areas 54 are divided on the sound-transmitting window shell plate 51, the first sound-transmitting area 55 is arranged between the two non-sound-transmitting vibration-suppressing noise-reducing areas 54, the first sound-transmitting area 55 and the second sound-transmitting area 56 are arranged in close proximity, the first sound-transmitting area 55, the second sound-transmitting area 56 and the non-sound-transmitting vibration-suppressing noise-reducing areas 54 are separated by two reinforcing ribs 59 to form independent areas, the sound-transmitting window shell plate 51 is attached to a first damping material in the non-sound-transmitting vibration-suppressing noise-reducing areas 54, and the reinforcing ribs 59 are fixed on the sound-transmitting window shell plate 51.

When the high-frequency sonar 1 is a single-frequency-band transceiving combined sonar array, with reference to fig. 5, the high-frequency sonar 1 includes 1 sonar array face for transmitting and receiving, a first sound-transmitting area 55 corresponding to the shared sonar array face is divided on the sound-transmitting window shell plate 51, six non-sound-transmitting vibration-damping noise-reduction areas 54 are divided on the sound-transmitting window shell plate 51, the six non-sound-transmitting vibration-damping noise-reduction areas 54 surround the first sound-transmitting area 55, the six non-sound-transmitting vibration-damping noise-reduction areas 54 and the first sound-transmitting area 55 are separated by two reinforcing ribs 59 to form independent areas, the sound-transmitting window shell plate 51 is attached to a first damping material in the non-sound-transmitting vibration-damping noise-reduction areas 54, and the reinforcing ribs 59 are fixed on the sound-transmitting window shell plate 51. The thickness of the first damping material can be selected according to the damping performance, or 1-2 times of the shell plate thickness of the non-sound-transmitting vibration and noise reduction region 54.

The sound-transmitting window shell plate 51 is made of a high-strength carbon fiber composite material, high-strength aramid fibers or high-strength polyethylene fibers are laid on the inner surface and the outer surface of the sound-transmitting window shell plate 51, the sound-transmitting window shell plate 51 and the reinforcing ribs 59 are made of the same material, and the sound-transmitting window shell plate 51 and the reinforcing ribs 59 are integrally formed. In order to improve the strength and prevent bubbles from being generated in the shell plate area, the whole forming process of the sound-transmitting window is suggested to be high-temperature extrusion forming of a hot-pressing tank. In consideration of marine corrosion of marine detection and galvanic corrosion of carbon fiber materials, high-strength aramid fibers or high-strength polyethylene fibers are laid on the inner and outer surfaces of the acoustic window skin 51, and a thickness of about 0.5mm is recommended. The density of the aramid fiber or the high polyethylene fiber is close to that of water, and the influence on the sound transmission performance is small. Glass fibers may also be applied to the inner and outer surfaces, but the thickness of the glass fibers has a significant effect on high frequency acoustic transmission, and acoustic transmission losses should be taken into account with respect to the thickness of the glass fibers.

The reinforcing rib 59 is formed by enclosing a quadrilateral rib plate 591, a partition plate 592 for partitioning into independent areas is arranged inside the quadrilateral rib plate 591, mounting holes 52 are formed around the sound-transmitting window shell plate 51, a flange 33 is sleeved on the periphery of the quadrilateral rib plate 591, a sealing gasket 4 is arranged between the flange 33 and the inner plate surface of the sound-transmitting window shell plate 51, the periphery of the outer plate surface of the sound-transmitting window shell plate 51 is pressed by a pressing plate 6, the sound-transmitting window shell plate 51, the sealing gasket 4 and the flange 33 are fixed on the outer surface of the water tank through bolts 7, and the quadrilateral rib plate 591 is embedded into a through hole formed in the water tank shell plate for mounting. The sealing installation form of the sound-transmitting window housing plate 51 is not limited thereto.

The outer surface of the sound-transmitting window shell plate 51 is coated with antifouling paint, and sound-absorbing wedges 8 and second damping materials 9 are arranged on the inner surface of the water tank around the quadrilateral rib plate 591. The sound absorption wedge 8 is selected according to the lowest frequency of detection, the sound absorption wedge with the thickness of 5cm can meet the sound absorption requirement of the frequency above 30kHz, and the width arranged around is recommended to be about 50 cm. The wedge arrangement range can also be determined according to the detection frequency, and the wedge arrangement range is generally larger than 10-20 times of the wavelength of the detection frequency.

In order to achieve the combined requirements of high strength and sound transmission of the sound transmission window, the thickness of the sound transmission window shell plate 51 is designed in a partition manner, see fig. 6 and 7. The shell plate of the non-sound-transmission vibration-suppression noise-reduction area 54 is thick, the specific thickness can be determined by adopting a strength checking method, and the use requirements of various ocean exploration ships can be met when the water pressure reaches the strength of 15 m. The thickness of each acoustically transparent region is determined by the probing frequency of each acoustically transparent region, and the strength is reinforced by the functional discrimination reinforcing ribs 59. When the detection frequency of the sound-transmitting area is within 100kHz, the thickness of the shell plate of the sound-transmitting area can be calculated and designed by adopting a layering equivalence principle, and the figure 8 can also be seen. FIG. 8 is the sound transmission loss of the carbon fiber shell plates with the thickness of 1mm, 2mm and 3mm at different frequencies, when the detection frequency is 80kHz, the carbon fiber shell plate with the thickness of 2mm is selected, the sound transmission loss is within 1dB, and the high-frequency sonar detection has excellent sound transmission performance. When the detection frequency is hundreds of khz, the thickness of the sound-transmitting area should be designed by half wavelength, as shown in fig. 9.

The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.