CN211602151U - Hydrophone shock absorber with protection function - Google Patents
Hydrophone shock absorber with protection function Download PDFInfo
- Publication number
- CN211602151U CN211602151U CN202020261835.3U CN202020261835U CN211602151U CN 211602151 U CN211602151 U CN 211602151U CN 202020261835 U CN202020261835 U CN 202020261835U CN 211602151 U CN211602151 U CN 211602151U
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- hydrophone
- base
- fastener
- protection
- protective
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 15
- 230000035939 shock Effects 0.000 title claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims abstract description 74
- 229920001971 elastomer Polymers 0.000 claims abstract description 45
- 239000005060 rubber Substances 0.000 claims abstract description 45
- 238000013016 damping Methods 0.000 claims abstract description 36
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 6
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 239000005062 Polybutadiene Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 229920002857 polybutadiene Polymers 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000013507 mapping Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 15
- 230000037431 insertion Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920005830 Polyurethane Foam Polymers 0.000 description 4
- 241000826860 Trapezium Species 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910002065 alloy metal Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a hydrophone shock absorber with a protection function, which belongs to the technical field of ocean mapping, and the device comprises: the bottom of the base is welded with the connecting base piece, and the upper part of the base is connected with the vibration damping rubber plate through a fastener; damping rubber plate top is connected with the protective housing through the fastener, and the inside rectangle through-hole of seting up of protective housing places the hydrophone in the protective housing, the second lag of hydrophone surface cladding circle cover form, and first lag is cup jointed to second lag outside, first lag outer wall and protective housing inner wall butt. The hydrophone vibration absorber solves the problem of accuracy of hydrophone measurement due to vibration, simultaneously prevents objects of the hydrophone from being impacted in water, and guarantees the safety of the hydrophone in use and the accuracy of measured data.
Description
Technical Field
The invention belongs to the technical field of ocean mapping, and particularly relates to a hydrophone shock absorber with a protection function.
Background
In the measurement of the self-noise of the naval vessel, the hydrophone is arranged on a shell of the underwater part of the naval vessel to obtain the self-noise signal of the naval vessel. Because the vibration of the hull of the naval vessel can also cause the output of the electric signal of the hydrophone, in order to reduce the influence of the hull vibration on the measurement of the self water noise of the naval vessel, the vibration reduction installation is carried out on the measurement hydrophone, the better the vibration reduction effect is, and the more accurate the measured data is. The currently used vibration damping method is to pad a layer of 3mm rubber plate between the clamps that fix the hydrophone. Because of the fastness requirement of hydrophone installation, anchor clamps are very tight, and the rubber slab has not played the damping effect, and the hydrophone is installed on the casing of naval vessel underwater part in addition, and the naval vessel receives aquatic object striking very easily in the course of traveling, leads to the hydrophone to damage, seriously influences the safety in utilization and the measurement accuracy of hydrophone.
Disclosure of Invention
The invention aims to provide a hydrophone shock absorber with a protection function, which solves the problem of accuracy of measurement of a hydrophone due to vibration, prevents the hydrophone from being impacted by objects in water, and ensures the use safety and the measurement data accuracy of the hydrophone.
The technical scheme adopted by the invention for realizing the purpose is as follows: a hydrophone vibration damper with protection, comprising:
the bottom of the base is welded with the connecting base piece, and the upper part of the base is connected with the vibration damping rubber plate through a fastener;
damping rubber plate top is connected with the protective housing through the fastener, and the inside rectangle through-hole of seting up of protective housing places the hydrophone in the protective housing, the second lag of hydrophone surface cladding circle cover form, and first lag is cup jointed to second lag outside, first lag outer wall and protective housing inner wall butt. The outer diameter of the first protection sleeve is larger than or equal to the minimum distance between two opposite surfaces in the protection box, furthermore, the rectangular through hole formed in the protection box is a square through hole, and the outer diameter of the first protection sleeve is larger than or equal to the minimum distance between two opposite surfaces in the protection box. This application expands hydrophone and connection base's distance through the base with being connected the base piece, with enlarge the distance that the connection base piece as the naval vessel casing produced vibration and transmitted the hydrophone, the vibration energy is absorbed in setting up damping rubber slab in the transmission way, and the mode that cup joints second lag and first lag in proper order at the hydrophone surface plays the shock attenuation effect promptly to the hydrophone and plays the guard action to the hydrophone again, and the contact quantity of first lag and protecting box inner wall is few, with this path that the vibration energy transmitted the hydrophone has been reduced, the protecting box that is equipped with can effectively avoid the striking and the first lag of naval vessel travel in-process object, the second lag can form the buffering and absorb striking or vibration energy to the striking, protect hydrophone normal use.
Optionally, the base cross-section is for falling the trapezium structure, and falls trapezoidal base upper surface both sides limit and be equipped with the extension board, set up the screw hole with the fastener assembly on the extension board, the base is equipped with cylindric spacing cylinder with connecting the base member connecting surface, connects the base member surface and sets up the plug hole body that corresponds with spacing cylinder. Extension board upper surface and base upper surface parallel and level, the base design of falling the trapezium structure does benefit to and enlarges the contact of transfer area and damping rubber slab along falling the trapezium structure transmission with the vibration energy that the connection base member of the naval vessel casing transmitted and concentrate in order to avoid the vibration energy, also does benefit to the effect of shaking of damping rubber slab, for the fastening connection of realization damping rubber slab and base, sets up the extension board on the base and cooperates the fastener to realize being connected of base and damping rubber slab. The thread structure in the threaded hole improves the connection stability by utilizing the self-locking property of the threads.
Optionally, a half-through insertion limiting groove is formed in the surface of the vibration reduction rubber plate, a limiting insertion plate is inserted in the insertion limiting groove, the insertion limiting groove is arranged near the fastening piece, and the limiting insertion plate is used for limiting the rotation of the fastening piece. The fastener comprises a bolt and a nut, and the limiting insert plate is attached to one side face of the nut or has a gap smaller than 1 mm. The fastener is probably not hard up because some reasons produce in long-time use, is unfavorable for like this to install holistic stability, effectively avoids not hard up of fastener through the mode that sets up the spacing picture peg that is used for restricting the fastener rotation in fastener side, for improving the effect, can all set up spacing picture peg on damping rubber slab and extension board and form spacingly to fastener both ends nut. The limiting inserting plate can be made of corrosion-resistant materials such as rubber or alloy metal, the limiting inserting plate is generally in interference fit with the inserting limiting groove, and the cold and hot deformation of the limiting inserting plate and the inserting limiting groove can be considered when the limiting inserting plate is actually used.
Optionally, an air vent parallel to the axis of the first protective sleeve is formed in the first protective sleeve, and the air vent is arranged around the axis of the first protective sleeve in a surrounding manner, so that the deformation amount of the first protective sleeve is improved, and the effects of reducing vibration and reducing impact force are improved.
Optionally, the bottom runs through damping rubber slab and base fixed connection through the fastener in the protective housing for realize the fastening connection of protective housing and damping rubber slab and base, be equipped with cylindric enhancement brace in the wall body of protective housing, be used for improving the anticollision nature of protective housing, strengthen the brace and choose the hot rolling reinforcing bar for use.
Optionally, a fastening through hole matched with the fastener is formed in the inner bottom surface of the protective box, and connecting threaded hole bodies corresponding to the fastening through hole are arranged on the vibration reduction rubber plate and the base and used for achieving fastening connection of the protective box, the vibration reduction rubber plate and the base through the fastener.
Optionally, a limiting insertion plate used for placing the fastener to rotate or loosen is arranged on the side of the fastener of the protective box, so that the loosening of the fastener in the protective box is avoided, and the connection stability of the fastener is improved.
Optionally, a round airbag is further arranged between the first protective sleeve and the inner wall of the protective box. The arrangement of the air bag can provide support when the protective box is impacted and can reduce the transmission of vibration or impact force.
Optionally, the damping rubber plate is one of butadiene rubber, natural rubber and styrene butadiene rubber. The first protective sleeve is made of microporous polyurethane foam or PU foam or polypropylene plastic, the second protective sleeve is made of chloroprene rubber, the hardness of the second protective sleeve is 60 degrees +/-5 degrees, and the materials are selected to be beneficial to absorbing vibration or impact force and improve the protection effect on the hydrophone.
Optionally, the side of base has been seted up half logical groove, is used for reducing the weight of base under the circumstances of guaranteeing to support intensity, and half logical groove can also be replaced by logical groove or half through-hole etc. certainly.
Optionally, the two side faces of the base of the inverted trapezoid structure are provided with second extension plates which are horizontally arranged and used for expanding a vibration energy transmission path passing through the base, so that the consumption of the vibration energy transmitted from the connecting base piece to the base is facilitated.
Compared with the prior art, the invention has the beneficial effects that: this application expands hydrophone and connection base's distance through the base with being connected of connecting the substrate to enlarge the distance that produces vibration and transmit the hydrophone as the connection substrate of naval vessel casing, set up the vibration energy that absorbs of setting up of damping rubber slab in the transmission route, and cup joint the mode of second lag and first lag in proper order at the hydrophone surface and play the cushioning effect promptly and play the guard action to the hydrophone again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a hydrophone shock absorber with protection features of the present application;
FIG. 2 is a schematic view of the connection of a hydrophone to a second protective enclosure and a first protective enclosure of the present application;
FIG. 3 is a schematic structural view of a fastener and a limiting insert plate;
FIG. 4 is a schematic view of the interior of the protective enclosure of the present application;
FIG. 5 is a schematic view of the structure of the base;
FIG. 6 is a schematic view of a base structure with a semicircular groove;
fig. 7 is a schematic view of the structure of the base to which the second extension plate is attached.
Description of reference numerals: 10-a base; 11-a limit cylinder; 12-an extension plate; 13-a threaded hole; 14-a semi-through slot; 15-a second extension plate; 20-vibration damping rubber plate; 21-inserting a limit groove; 30-a protective box; 31-reinforcing branch bars; 40-a first protective cover; 41-a vent hole; 42-an air bag; 43-fastening through holes; 50-a second protective cover; 60-a hydrophone; 70-a fastener; 71-a limiting inserting plate; 80-connecting base member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1-7, a hydrophone shock absorber with protection includes:
the base 10, the bottom of the base 10 is welded with the connecting base element 80, and the damping rubber plate 20 is connected above the base 10 through a fastener 70;
the protection box 30 is connected to the damping rubber plate 20 through fastener 70, and the rectangular through hole is seted up to protection box 30 inside, places hydrophone 60 in the protection box 30, and the second lag 50 of hydrophone 60 surface cladding circle cover form, and first lag 40 is cup jointed to second lag 50 outside, first lag 40 outer wall and the butt of protection box 30 inner wall. The outer diameter of the first protection sleeve 40 is larger than or equal to the minimum distance between two opposite surfaces in the protection box 30, furthermore, the rectangular through hole formed in the protection box 30 is a square through hole, and the outer diameter of the first protection sleeve 40 is larger than or equal to the minimum distance between two opposite surfaces in the protection box 30. According to the vibration energy transmission method, the distance between the hydrophone 60 and the connecting base 80 is enlarged through the connection of the base 10 and the connecting base 80, the distance between the hydrophone 60 and the connecting base 80 serving as a ship shell is enlarged, the vibration energy is absorbed by arranging the vibration damping rubber plate 20 in a transmission path, the vibration absorption effect and the protection effect on the hydrophone 60 are achieved by sequentially sleeving the second protective sleeve 50 and the first protective sleeve 40 on the outer surface of the hydrophone 60, the contact amount between the first protective sleeve 40 and the inner wall of the protective box 30 is small, the path for transmitting the vibration energy to the hydrophone 60 is reduced, the provided protective box 30 can effectively avoid the impact of objects in the ship driving process, the first protective sleeve 40 and the second protective sleeve 50 can buffer and absorb the impact or the vibration energy, and the normal use of the hydrophone 60 is protected.
The cross-section of the base 10 is of an inverted trapezoidal structure, the two side edges of the upper surface of the inverted trapezoidal base 10 are provided with extension plates 12, the extension plates 12 are provided with threaded holes 13 assembled with the fasteners 70, the connecting surface of the base 10 and the connecting base element 80 is provided with a cylindrical limiting column body 11, and the surface of the connecting base element 80 is provided with a plug hole body corresponding to the limiting column body 11. The upper surface of the extension plate 12 is flush with the upper surface of the base 10, the base 10 with the inverted trapezoid structure is designed to be beneficial to expanding the contact between the transmission area and the vibration damping rubber plate 20 along the transmission of the inverted trapezoid structure to avoid the concentration of the vibration energy, and the vibration absorption effect of the vibration damping rubber plate 20, so that the vibration damping rubber plate 20 is tightly connected with the base 10, the extension plate 12 is arranged on the base 10 and is matched with the fastener 70 to realize the connection between the base 10 and the vibration damping rubber plate 20. The thread structure in the threaded hole 13 improves the connection stability by means of thread self-locking.
The surface of the vibration reduction rubber plate 20 is provided with a semi-through inserting limiting groove 21, a limiting inserting plate 71 is inserted in the inserting limiting groove 21, the inserting limiting groove 21 is arranged near the fastening piece 70, and the limiting inserting plate 71 is used for limiting the fastening piece 70 to rotate. The fastening member 70 comprises a bolt and a nut, and the limit insert plate 71 is attached to one side surface of the nut or has a gap smaller than 1 mm. The fastener 70 may be loosened due to some reasons in the long-time use process, which is not beneficial to the overall stability of the device, the loosening of the fastener 70 is effectively avoided by arranging the limiting insertion plate 71 for limiting the rotation of the fastener 70 at the side of the fastener 70, and in order to improve the effect, the limiting insertion plate 71 can be arranged on the vibration damping rubber plate 20 and the extension plate 12 to limit the nuts at the two ends of the fastener 70. The limiting insertion plate 71 can be made of corrosion-resistant materials such as rubber or alloy metal, the connecting between the limiting insertion plate 71 and the insertion limiting groove 21 is generally in interference fit, and when the limiting insertion plate is actually used, the cold and hot deformation of the limiting insertion plate 71 and the insertion limiting groove 21 can be considered by selecting the materials and the size of the insertion limiting groove 21.
The first protective sleeve 40 is internally provided with vent holes 41 parallel to the axis of the first protective sleeve 40, and the vent holes 41 are arranged around the axis of the first protective sleeve 40 in a surrounding manner, so that the deformation of the first protective sleeve 40 is improved, and the effects of reducing vibration and reducing impact force are improved.
The bottom runs through damping rubber slab 20 and base 10 fixed connection through fastener 70 in protective housing 30 for realize protective housing 30 and damping rubber slab 20 and base 10's fastening connection, be equipped with cylindric enhancement brace 31 in protective housing 30's the wall body, be used for improving protective housing 30's crashworthiness, strengthen brace 30 and choose the hot rolling reinforcing bar for use.
Fastening through holes 43 matched with the fasteners 70 are formed in the inner bottom surface of the protective box 30, and connecting threaded hole bodies corresponding to the fastening through holes 43 are arranged on the vibration reduction rubber plate 20 and the base 10 and used for achieving fastening connection of the protective box 30, the vibration reduction rubber plate 20 and the base 10 through the fasteners 70.
A limiting insert plate 71 used for placing the fastener 70 to rotate or loosen is arranged on the side of the fastener 70 of the protective box 30, so that the fastener 70 in the protective box 30 is prevented from loosening, and the connection stability of the fastener 70 is improved.
A round air bag 42 is also arranged between the first protective cover 40 and the inner wall of the protective box 30. The arrangement of air bag 42 provides support during an impact to protective housing 30 and reduces the transmission of vibration or impact forces.
The damping rubber plate 20 is one of butadiene rubber, natural rubber, and styrene-butadiene rubber. The first protective sleeve 40 is made of microporous polyurethane foam or PU foam or polypropylene plastic, the second protective sleeve 50 is made of chloroprene rubber, the hardness is 60 degrees +/-5 degrees Shore, and the materials are selected to facilitate absorption of vibration or impact force and improve the protection effect on the hydrophone 60.
The lateral surface of the base 10 is provided with a semi-through groove 14, which is used for reducing the weight of the base 10 under the condition of ensuring the supporting strength, and the semi-through groove 14 can be replaced by a through groove or a semi-through hole.
The two side surfaces of the base 10 with the inverted trapezoid structure are provided with the second extension plates 15 which are horizontally arranged and are used for expanding the vibration energy transmission path passing through the base 10, thereby being beneficial to consuming the vibration energy transmitted from the connecting base element 80 to the base 10.
The utility model discloses during the use: the base 10 is welded on a connecting base element 80 of a naval vessel shell, the base 10 is connected with the damping rubber plate 20 through a fastener 70, the protective box 30 is connected with the damping rubber plate 20 and the base 10 through the fastener 70, then the hydrophone 60 sleeved with the first protective sleeve 40 and the second protective sleeve 50 is placed into the protective box 30 through one port of the protective box 30, and a plurality of air bags 42 can be properly placed between the second protective sleeve 40 and the inner wall of the protective box 30. When the connecting base member 80 vibrates, the vibration energy of the connecting base member is transmitted upwards from the inverted trapezoidal base 10 to the vibration damping rubber plate 20, the vibration damping rubber plate 20 absorbs part of the vibration energy and transmits the vibration energy to the protection box 30, and the protection box 30 absorbs part of the vibration energy, and because the rectangular inner cavity of the protection box 30 has less contact surface with the cylindrical protection sleeve 40, the vibration energy transmission to the first protection sleeve 40 is effectively reduced, and the vibration energy transmitted to the first protection sleeve 40 can be effectively reduced or prevented from being transmitted to the hydrophone through the first protection sleeve 40 and the second protection sleeve 50.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (8)
1. A hydrophone vibration damper with protection, comprising:
the base (10), the bottom of the base (10) is welded with a connecting base piece (80), and a damping rubber plate (20) is connected above the base (10) through a fastener (70);
the method is characterized in that: damping rubber slab (20) top is connected with protective housing (30) through fastener (70), the inside rectangle through-hole of seting up of protective housing (30), hydrophone (60) are placed in protective housing (30), second lag (50) of hydrophone (60) surface cladding circle cover form, first lag (40) are cup jointed to second lag (50) outside, first lag (40) outer wall and protective housing (30) inner wall butt.
2. The hydrophone shock absorber with protection of claim 1, wherein: the cross section of the base (10) is of an inverted trapezoidal structure, two sides of the upper surface of the inverted trapezoidal base (10) are provided with extension plates (12), and threaded holes (13) assembled with fasteners (70) are formed in the extension plates (12).
3. The hydrophone shock absorber with protection of claim 1, wherein: half logical grafting spacing groove (21) are seted up on damping rubber board (20) surface, it has spacing picture peg (71) to peg graft in spacing groove (21), near fastener (70) are located in grafting spacing groove (21), spacing picture peg (71) are used for restricting fastener (70) rotation.
4. The hydrophone shock absorber with protection of claim 1, wherein: air holes (41) parallel to the axis of the first protective sleeve (40) are formed in the first protective sleeve (40), and the air holes (41) are distributed around the axis of the first protective sleeve (40).
5. The hydrophone shock absorber with protection of claim 1, wherein: the bottom in the protective box (30) runs through the damping rubber plate (20) and is fixedly connected with the base (10) through a fastener (70), and a cylindrical reinforcing brace (31) is arranged in the wall body of the protective box (30).
6. The hydrophone shock absorber with protection of claim 1, wherein: a round air bag (42) is further arranged between the first protective sleeve (40) and the inner wall of the protective box (30).
7. The hydrophone shock absorber with protection of claim 1, wherein: the vibration reduction rubber plate (20) is one of butadiene rubber, natural rubber and styrene butadiene rubber.
8. The hydrophone shock absorber with protection of claim 1, wherein: the side surface of the base (10) is provided with a semi-through groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020261835.3U CN211602151U (en) | 2020-03-06 | 2020-03-06 | Hydrophone shock absorber with protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020261835.3U CN211602151U (en) | 2020-03-06 | 2020-03-06 | Hydrophone shock absorber with protection function |
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| Publication Number | Publication Date |
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| CN211602151U true CN211602151U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020261835.3U Expired - Fee Related CN211602151U (en) | 2020-03-06 | 2020-03-06 | Hydrophone shock absorber with protection function |
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| Country | Link |
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| CN (1) | CN211602151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319757A (en) * | 2020-11-20 | 2021-02-05 | 浙江海洋大学 | Boats and ships host computer stull additional strengthening |
| CN116331456A (en) * | 2023-03-17 | 2023-06-27 | 中国科学院声学研究所 | A broadside array subassembly for unmanned submarine |
-
2020
- 2020-03-06 CN CN202020261835.3U patent/CN211602151U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319757A (en) * | 2020-11-20 | 2021-02-05 | 浙江海洋大学 | Boats and ships host computer stull additional strengthening |
| CN112319757B (en) * | 2020-11-20 | 2021-09-14 | 浙江海洋大学 | Boats and ships host computer stull additional strengthening |
| CN116331456A (en) * | 2023-03-17 | 2023-06-27 | 中国科学院声学研究所 | A broadside array subassembly for unmanned submarine |
| CN116331456B (en) * | 2023-03-17 | 2023-11-24 | 中国科学院声学研究所 | A broadside array subassembly for unmanned submarine |
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