Low-noise ribbon vertical array based on vertical vibration isolation mixing vortex breakup analysis
By using a load-bearing vertical vibration isolation section and a fixed-width polyester streamer structure in a deep-sea vertical array, combined with a multi-array oil-filled receiving array section and a load-bearing cable vulcanized hydrophone, the vibration noise problem of deep-sea vertical array is solved, and high-quality acoustic signal acquisition and simplified layout and recovery are achieved.
Patent Information
- Application Number
- CN202510483517.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2045-04-17
AI Technical Summary
The deep-sea vertical array is susceptible to the influence of wind and wave flow in a state of tension, and the existing technology has complex structure and is difficult to deploy, making it difficult to effectively isolate vertical and lateral vibration noise.
The vertical vibration isolation section with a fixed width polyester streamer structure is adopted, combined with the multi-array element oil-filled receiving array section and the force-bearing cable vulcanized hydrophone, and the alternating vortex breakage is formed by weaving the polyester streamer to reduce the lateral flow vibration, and the vibration isolation inner frame and insulating oil are used to isolate the vertical vibration.
It improves the acoustic signal acquisition quality of the deep-sea vertical array within the entire sea depth range, reduces low-frequency vibration noise, simplifies the distribution and recycling process, and enhances the signal-to-noise ratio.
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Figure CN119984472B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a deep-sea vertical array in the field of deep-sea ocean acoustic environment, background field and target acoustic feature detection and monitoring, and specifically relates to a low-noise ribbon vertical array based on vertical vibration isolation mixing vortex breakup analysis. Background Art
[0002] Deep-sea vertical arrays are an effective means of detecting deep-sea ocean noise backgrounds, channel characteristics, and underwater targets. Large-scale deep-sea vertical arrays often extend from 100-200 meters above the sea surface to the seafloor. Because the arrays must be deployed vertically, they are anchored by gravity anchors at their base and buoyed by large buoyancy blocks at their tops, keeping the entire array in a state of tension. This tension-prone vertical array is susceptible to the effects of surface wind and wave currents, which can cause longitudinal vibrations. Furthermore, the vertical arrangement of the arrays exposes them to lateral currents, such as ocean currents. Like strings being plucked by the currents, these vibrations excite the hydrophones, causing them to experience external interference and thus affecting the quality of the received signal.
[0003] It's generally believed that ocean currents have minimal influence in deep-sea conditions. Therefore, deep-sea acoustic background detection studies only deploy vertical arrays in the deep sea, avoiding the influence of surface wind and wave currents. However, recent research has revealed that deep-sea currents do exist and can generate noise in deep-sea vertical arrays (which approximate low-frequency vibrations caused by cylindrical currents). To address this, existing methods for removing this flow-induced noise involve weaving a densely packed fiber material (similar to hair) onto the surface of the vertical array. This type of hair array effectively suppresses transverse flow-induced noise.
[0004] Furthermore, in vertical arrays deployed at full ocean depth, oil-filled arrays are often used to eliminate vertical vibrations (i.e., the hydrophones and supporting cables are installed within a PU sheath filled with oil). This effectively isolates vertical vibrations, and the choice of the oil filling medium also mitigates against "false noise" caused by flow-induced vibrations. However, oil-filled arrays still present challenges, such as the difficulty of fabricating them over long distances and the inherent vibrations of the PU sheath itself, which radiate "real noise" to the hydrophones due to flow-induced vibrations. Consequently, in recent years, self-contained hydrophone arrays have been developed using supporting cables or cables as mooring devices. These mooring devices can even be woven with fine fibers, allowing them to cover large ocean depths. The self-contained hydrophones are then connected to these arrays using vibration-damping rubber components. Essentially, these designs isolate the vibrations transmitted between the mooring cables and hydrophones under tension, thereby reducing noise. While these designs can reduce vertical and lateral noise, they are complex, difficult to deploy, and often suffer from common issues such as hair tangling. Summary of the Invention
[0005] To address the vertical vibration and flow-induced vibration of vertical arrays within deep-sea and deep-depth coverage, the present invention proposes a low-noise ribbon vertical array based on vertical vibration isolation and vortex breaking analysis. This invention employs specially designed vibration isolation segments to isolate the wind, wave, and current impact vibrations of a vertical hydrophone receiving array in a tension-tethered state. The vertical hydrophone receiving array utilizes a combination of tension-bearing cable-vulcanized hydrophones and multi-element oil-filled receiving segments to receive underwater acoustic signals under deep-sea conditions. Furthermore, the upper and lower vertical mixing segments are woven with highly flexible, fixed-width woven polyester ribbons, effectively breaking up the alternating vortices formed by the flow around the cylinder, thereby effectively reducing its lateral flow-induced vibrations. The low-frequency vibration frequency of the proposed vertical array under typical ocean currents is approximately 9 Hz. Therefore, the present invention utilizes vertical vibration isolation and vortex breaking technologies to improve the vertical array's receiving signal-to-noise ratio, enabling high-quality acquisition of acoustic data in scenarios such as deep-sea marine environmental surveys, dynamic environmental monitoring, and acoustic target detection.
[0006] The technical solutions of the present invention are as follows:
[0007] A low-noise streamer vertical array based on vertical vibration isolation mixing vortex breakup analysis includes a main control electronic warehouse and two vertical mixing sections, which are symmetrically installed at the upper and lower ends of the main control electronic warehouse; each of the vertical mixing sections includes a proximal vibration isolation section, a multi-element oil-filled receiving array section, a supporting cable sulfurized hydrophone receiving array section, a rotational isolation section, and a distal vibration isolation section, which are arranged in sequence along the direction away from the main control electronic warehouse. The proximal vibration isolation section and the multi-element oil-filled receiving array section, as well as the multi-element oil-filled receiving array section and the supporting cable sulfurized hydrophone receiving array section are all connected through corresponding electrical connectors, and corresponding streamers are arranged outside the proximal vibration isolation section, the multi-element oil-filled receiving array section, the supporting cable sulfurized hydrophone receiving array section, and the distal vibration isolation section.
[0008] The main control electronic warehouse includes an exoskeleton, a glass microbead buoyancy shell, a pressure-resistant shell, an atomic clock, a main control module, a battery pack, an upper acquisition and storage module, and a lower acquisition and storage module; the pressure-resistant shell is placed in the glass microbead buoyancy shell, and the glass microbead buoyancy shell is installed in the exoskeleton. The main control module, the atomic clock, the battery pack, the upper acquisition and storage module, and the lower acquisition and storage module are all installed in the pressure-resistant shell. The main control module is connected to the atomic clock, the upper acquisition and storage module and the lower acquisition and storage module are both connected to the main control module, the battery pack is connected to the upper acquisition and storage module, the lower acquisition and storage module, and the main control module, and the main control module is connected to the vertical mixing sections at the upper and lower ends through interconnecting cables.
[0009] The proximal vibration isolation section includes a vibration isolation inner skeleton, a PU sheath, insulating oil, an elastic rope and a rigid rope. The vibration isolation inner skeleton is installed in the PU sheath and the PU sheath is filled with insulating oil. One end of the elastic rope is connected to the electrical connector at one end of the proximal vibration isolation section, and the other end of the elastic rope passes through several vibration isolation inner skeletons and then is connected to the electrical connector at the other end of the proximal vibration isolation section. One end of the rigid rope is connected to the electrical connector at one end of the proximal vibration isolation section, and the other end of the rigid rope passes through several vibration isolation inner skeletons and then is connected to the electrical connector at the other end of the proximal vibration isolation section.
[0010] The elastic cord comprises an elastic nylon cord.
[0011] The rigid cord comprises a Kevlar cord.
[0012] The load-bearing cable vulcanized hydrophone receiving array section includes a load-bearing cable, a hydrophone vulcanized layer, a vulcanized hydrophone, a vulcanized load-bearing head and a load-bearing connector; one end of the load-bearing cable is connected to the electrical connector at the multi-element oil-filled receiving array section through the vulcanized load-bearing head, and several hydrophone vulcanized layers are installed outside the load-bearing cable at intervals along the axial direction of the load-bearing cable, and a corresponding vulcanized hydrophone is installed in each hydrophone vulcanized layer. The other end of the load-bearing cable is connected to the rotating isolation section through the load-bearing connector.
[0013] The rotating isolation section includes a shackle and a rotating ring; both ends of the rotating ring are connected to a corresponding shackle respectively, and the two shackles are respectively connected to the vulcanized hydrophone receiving array section of the bearing cable and the far-end vibration isolation section.
[0014] The streamers are formed by weaving several polyester belts in a double layer in an oblique manner at the proximal vibration isolation section, the multi-element oil-filled receiving array section, the load-bearing cable vulcanized hydrophone receiving array section or the distal vibration isolation section and then leading out.
[0015] The material of the outer frame and the pressure-resistant shell is titanium alloy.
[0016] The multi-element oil-filled receiving array segment includes a vibration isolation inner frame, a PU sheath, insulating oil, an elastic rope and a rigid rope. The vibration isolation inner frame is installed in the PU sheath and the PU sheath is filled with insulating oil. A plurality of hydrophones arranged at intervals are installed in the vibration isolation inner frame. One end of the elastic rope is connected to an electrical connector at one end of the proximal vibration isolation segment, and the other end of the elastic rope passes through a plurality of vibration isolation inner frames and then is connected to an electrical connector at the other end of the proximal vibration isolation segment. One end of the rigid rope is connected to an electrical connector at one end of the multi-element oil-filled receiving array segment, and the other end of the rigid rope passes through a plurality of vibration isolation inner frames and then is connected to an electrical connector at the other end of the multi-element oil-filled receiving array segment.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The present invention adopts a load-bearing vertical vibration isolation section and a horizontal woven fixed-width polyester ribbon structure, which greatly improves the acoustic signal collection quality of hydrophones arranged arbitrarily in the vertical array within the full sea depth range.
[0019] 2. The vertical array of the present invention has a simple structure and is connected into a vertical cable array when the deck is integrated. There is no need to install other equipment during the deployment and recovery process, making deployment and recovery simple and efficient.
[0020] 3. The vertical array of the present invention can be designed and installed into hydrophone arrays with unequal spacing as needed, meeting different design requirements on one vertical array.
[0021] 4. The vertical vibration isolation capability of the low-noise ribbon vertical array proposed by the present invention reaches more than 20dB below 50Hz, and the horizontal flow-induced noise suppression capability reaches more than 10dB. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall structure of a low-noise streamer vertical array based on vertical vibration isolation mixing vortex breakup analysis.
[0023] Figure 2 It is a structural diagram of the main control electronic compartment.
[0024] Figure 3 It is a structural schematic diagram of the proximal vibration isolation section and the distal vibration isolation section.
[0025] Figure 4 It is a schematic diagram of the overall structure of the ribbon.
[0026] Figure 5 It is a structural diagram of the receiving array section of the load-bearing cable vulcanized hydrophone.
[0027] Figure 6 It is a structural diagram of a multi-element oil-filled receiving array segment.
[0028] Figure 7 This is a detailed diagram of the streamer.
[0029] In the figure: interconnection cable 1, exoskeleton 2, glass bead buoyancy shell 3, pressure-resistant shell 4, atomic clock 5, main control module 6, battery pack 7, upper acquisition and storage module 8, lower acquisition and storage module 9, proximal vibration isolation section 10, electrical connector 11, multi-element oil-filled receiving array section 12, streamer 13, load-bearing cable 14, hydrophone vulcanization layer 15, vulcanized hydrophone 16, shackle 17, rotating ring 18, distal vibration isolation section 19, debugging port 20, timing port 21, elastic nylon rope 22, Kevlar rope 23, vibration isolation inner skeleton 24, PU sheath 25, insulating oil 26, load-bearing cable vulcanized hydrophone receiving array section 27, vulcanized load-bearing head 28, load-bearing connector 29, hydrophone in the section 30. DETAILED DESCRIPTION
[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0031] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the ordinary meaning understood by persons of ordinary skill in the field to which the invention belongs. The terms "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "one", "an" or "the" do not indicate a limit on quantity, but rather indicate the presence of at least one. Terms such as "include" or "comprise" mean that the elements or objects preceding the term include the elements or objects listed after the term and their equivalents, without excluding other elements or objects. Terms such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0032] like Figure 1 and Figure 4 As shown, the low-noise vertical streamer array (i.e., a vertical hydrophone receiving array) proposed by the present invention includes a main control electronics compartment and two vertical mixing sections symmetrically mounted at the upper and lower ends of the main control electronics compartment. Each vertical mixing section includes a proximal vibration isolation section 10, a multi-element oil-filled receiving array section 12, a supporting cable sulfurized hydrophone receiving array section 27, a rotational isolation section, and a distal vibration isolation section 19, arranged in sequence away from the main control electronics compartment. The proximal vibration isolation section 10 and the multi-element oil-filled receiving array section 12, as well as the multi-element oil-filled receiving array section 12 and the supporting cable sulfurized hydrophone receiving array section 27, are connected via corresponding electrical connectors 11. The proximal vibration isolation section 10 is connected to the main control electronics compartment. Streamers 13 are arranged around the proximal vibration isolation section 10, the multi-element oil-filled receiving array section 12, the supporting cable sulfurized hydrophone receiving array section 27, and the distal vibration isolation section 19. The vertical array can be deployed as a buoy alone, or it can be combined with other equipment as part of a buoy to form a more complex buoy for deployment.
[0033] like Figure 2As shown, the main control electronics compartment includes an exoskeleton 2, a glass microbead buoyancy shell 3, a pressure-resistant shell 4, an atomic clock 5, a main control module 6, a battery pack 7, an upper data acquisition and storage module 8, and a lower data acquisition and storage module 9. The pressure-resistant shell 4 is placed within the glass microbead buoyancy shell 3, which is mounted within the exoskeleton 2. The main control module 6, the atomic clock 5, the battery pack 7, the upper data acquisition and storage module 8, and the lower data acquisition and storage module 9 are all mounted within the pressure-resistant shell 4, which serves as a watertight device. The glass microbead buoyancy shell 3 provides buoyancy. The exoskeleton 2 and pressure-resistant shell 4 are made of titanium alloy. The atomic clock 5 is a high-precision atomic clock. The main control module 6 is connected to the atomic clock 5, the upper data acquisition and storage module 8 and the lower data acquisition and storage module 9 are both connected to the main control module 6, and the battery pack 7 is connected to the upper data acquisition and storage module 8, the lower data acquisition and storage module 9, and the main control module 6. The main control module 6 is connected to the proximal vibration isolation section 10 of the upper and lower vertical mixing sections via an interconnecting cable 1 and an electrical connector 11. The pressure-resistant housing 4 near the atomic clock 5 also features a debug port 20 and a timing port 21. This port allows tasks such as distributing scheduled task lists to devices, and the timing port provides the system's timebase signal. The atomic clock 5 is used to acquire this timebase signal. The main control circuit is responsible for circuit monitoring, clock signal reading, and the creation, distribution, and storage of received lists. A lithium-ion battery pack 7 provides power. The power control module receives commands from the main control unit to power on and off each device. The power acquisition and storage module receives and stores acoustic signals.
[0034] like Figure 3 As shown, the proximal vibration isolation section 10 includes a vibration isolation inner skeleton 24, a PU sheath 25, insulating oil 26, an elastic rope and a rigid rope. The vibration isolation inner skeleton 24 is installed in the PU sheath 25 and the PU sheath 25 is filled with insulating oil 26. One end of the elastic rope is connected to the electrical connector 11 at one end of the proximal vibration isolation section 10 (i.e., the end close to the main control electronic compartment), and the other end of the elastic rope passes through several vibration isolation inner skeletons 24 and then is connected to the electrical connector 11 at the other end of the proximal vibration isolation section 10 (i.e., the end close to the multi-element oil-filled receiving array section 12). One end of the rigid rope is connected to the electrical connector 11 at one end of the proximal vibration isolation section 10, and the other end of the rigid rope passes through several vibration isolation inner skeletons 24 and then is connected to the electrical connector 11 at the other end of the proximal vibration isolation section 10.
[0035] The structure of the distal vibration isolation section 19 is the same as that of the proximal vibration isolation section 10. The front and rear connectors of the proximal vibration isolation section use electrical connectors 11, while the distal vibration isolation section does not require the transmission of acoustic signals and uses a metal-structured load-bearing connector. Therefore, in the distal vibration isolation section 19, the ends of the elastic rope and the rigid rope are connected to the shackle 17 and the load-bearing connector 29 of the rotating isolation section. The proximal vibration isolation section 10 and the distal vibration isolation section 19 are used to isolate the impact vibration that may exist in the central electronic compartment. The elastic rope includes an elastic nylon rope 22. The rigid rope includes a Kevlar rope 23. The elastic nylon rope is used to bear the load, and the Kevlar rope is used to limit the position. The vibration isolation section needs to be supported by an internal vibration isolation skeleton 24 as the distance becomes longer. Due to the requirement of acoustic signal transmission, the proximal vibration isolation section needs to be internally arranged with the same number of wires as the multi-element oil-filled receiving array section. The distal vibration isolation section does not have any signal transmission requirements, so no wires need to be arranged.
[0036] like Figure 6 As shown, the multi-element oil-filled receiving array segment 12 includes a vibration isolation inner skeleton 24, a PU sheath 25, insulating oil 26, an elastic rope and a rigid rope. The vibration isolation inner skeleton 24 is installed in the PU sheath 25 and the PU sheath 25 is filled with insulating oil 26. A plurality of hydrophones 30 arranged at intervals are installed in the vibration isolation inner skeleton 24. One end of the elastic rope is connected to the electrical connector 11 at one end of the proximal vibration isolation segment 10, and the other end of the elastic rope passes through a plurality of vibration isolation inner skeletons 24 and then is connected to the electrical connector 11 at the other end of the proximal vibration isolation segment 10. One end of the rigid rope is connected to the electrical connector 11 at one end of the multi-element oil-filled receiving array segment 12 (i.e., the end close to the proximal vibration isolation segment 10), and the other end of the rigid rope passes through a plurality of vibration isolation inner skeletons 24 and then is connected to the electrical connector 11 at the other end of the multi-element oil-filled receiving array segment 12 (i.e., the end close to the supporting cable vulcanized hydrophone receiving array segment 27). In order to meet the arrangement of multiple array elements, it is necessary to arrange the wires in the PU sheath 25.
[0037] A multi-element oil-filled receiving array is used when deep target location is required. The number and spacing of hydrophones within the multi-element oil-filled array can be customized based on the target detection frequency, but the maximum frequency does not exceed 5kHz. Kevlar rope is used internally for support, and a polyester ribbon with a fixed width is woven onto the surface. The hydrophones within the multi-element oil-filled array are connected to the central electronics compartment via wires through the proximal isolation section. This facilitates the transmission and uplink of control commands and hydrophone data. A connector connects the end of the oil-filled array to a watertight supporting cable. The surface of the supporting cable is wired to the hydrophones according to the specified aperture spacing, and the hydrophones are vulcanized onto the cable surface to form a watertight array element. Control commands and hydrophone data are transmitted via wires within the supporting cable, passing through the multi-element oil-filled array and the proximal isolation section before ultimately reaching the central main control electronics compartment.
[0038] like Figure 5As shown, the load-bearing cable vulcanized hydrophone receiving array segment 27 includes a load-bearing cable 14, a hydrophone vulcanized layer 15, a vulcanized hydrophone 16, a vulcanized load-bearing head 28 and a load-bearing connector 29; one end of the load-bearing cable 14 is connected to the electrical connector 11 at the multi-element oil-filled receiving array segment 12 through the vulcanized load-bearing head 28, and a plurality of hydrophone vulcanized layers 15 are installed at intervals along the axial direction of the load-bearing cable 14 outside the load-bearing cable 14, and each hydrophone vulcanized layer 15 is installed with a corresponding vulcanized hydrophone 16, and the other end of the load-bearing cable 14 is connected to a shackle 17 of the rotating isolation segment through the load-bearing connector 29.
[0039] The purpose of the load-bearing cable sulfur hydrophone is to compensate for the limitation of multi-element oil-filled receiving array segments. The load-bearing cable 14 can be up to a kilometer in length and can be cut at any location on its watertight surface to connect the hydrophones with wires. A sulfurized watertight layer is then encapsulated on the outside. For the single-ended load-bearing cable sulfur hydrophone receiving array segment, an electrical connector 11 is placed on one end and a load-bearing connector 29 is used on the other end. A sulfurized load-bearing head 28 is fabricated at the electrical connector end. The surface sulfurized hydrophones 16 require electrical connection, and the external watertight sulfurized layer 15 is designed in an olive shape.
[0040] The rotating isolation section includes a shackle 17 and a rotating ring 18; both ends of the rotating ring 18 are connected to a corresponding shackle 17, and the two shackles 17 are respectively connected to the load-bearing cable vulcanized hydrophone receiving array section 27 and the load-bearing connector 29 of the remote vibration isolation section 19.
[0041] Polyester has suitable toughness, and the polyester tape is 10-30mm wide and 200-400mm long. Figure 7 As shown, several polyester belts are formed by using oblique double-layer weaving at the proximal vibration isolation section 10, the multi-element oil-filled receiving array section 12, the load-bearing cable sulfurized hydrophone receiving array section 27 or the distal vibration isolation section 19. This weaving method can disperse the density of the streamers 13 on the entire weaving surface, so that the vertical array can still maintain good drifting performance during long-term and multi-frequency deployment in seawater, avoiding the problem of fine fibers tangling.
[0042] When operating, the main control electronics compartment receives time from the deck unit of a high-precision atomic clock. The collection task list, which includes settings for the sampling rate, storage file format, and collection cycle, is distributed through the debug port. After completing these settings, the main control electronics compartment enters sleep mode, retaining only the duty circuit and the high-precision atomic clock. Before the task time arrives, the duty circuit awakens the main control circuit and the collection and storage module. The main control circuit then controls the collection and storage module to synchronize acoustic signal acquisition using the high-precision atomic clock. After completing an acquisition cycle, all devices reenter sleep mode.
[0043] Large eddy simulation (LES) was used to simulate the vortex shedding of the proposed vertical array. Results show that its low-frequency vibrations are centered around 9 Hz. By weaving a fixed-width polyester ribbon onto the surface of the oil-filled array, the radiated sound generated by the structural vibrations of the PU sheath under fluid-structure interaction at this 9 Hz frequency can be effectively reduced. Similarly, weaving a fixed-width polyester ribbon onto the end of the load-bearing cable suppresses vibrations of the load-bearing cable near the vulcanized hydrophone, reducing flow-induced "artifacts" on the hydrophone surface. Furthermore, elastic vibration isolation sections designed according to cable tension can reduce low-frequency vibrations below 50 Hz by more than 20 dB, effectively ensuring the quality of the received acoustic signal.
[0044] This low-noise vertical streamer array, based on vertical vibration isolation and mixing vortex breakup analysis, utilizes load-bearing vertical vibration isolation segments and horizontally woven fixed-width polyester streamers. This significantly improves acoustic signal acquisition quality across the entire ocean depth range, regardless of hydrophone placement. The vertical vibration isolation capability of the present invention exceeds 20dB below 50Hz, and the horizontal flow-induced noise suppression capability exceeds 10dB. The main control electronics compartment is compact, and the array segments are relatively simple. Simple connectors allow for a vertical array with wide ocean depth coverage, making it easy to deploy and retrieve from the deck.
[0045] Furthermore, it should be noted that the above embodiments are intended only to illustrate the technical solutions and implementation approaches of the present invention and are not intended to be limiting. Simple modifications, reduced usage, equivalent substitutions, or modifications based on the technical essence of the present invention do not deviate from the technical solutions and implementation approaches of the present invention.
Claims
1. A low-noise vertical ribbon array based on vertical vibration isolation mixing vortex breakup analysis, characterized by: The invention comprises a main control electronic compartment and two vertical mixing sections, wherein the two vertical mixing sections are symmetrically installed at the upper and lower ends of the main control electronic compartment; in a direction away from the main control electronic compartment, each of the vertical mixing sections comprises a proximal vibration isolation section (10), a multi-element oil-filled receiving array section (12), a supporting cable sulfurized hydrophone receiving array section (27), a rotation isolation section and a distal vibration isolation section (19) arranged in sequence; the proximal vibration isolation section (10) and the multi-element oil-filled receiving array section (12), and the multi-element oil-filled receiving array section (12) and the supporting cable sulfurized hydrophone receiving array section (27) are all connected via corresponding electrical connectors (11); corresponding streamers (13) are arranged outside the proximal vibration isolation section (10), the multi-element oil-filled receiving array section (12), the supporting cable sulfurized hydrophone receiving array section (27) and the distal vibration isolation section (19); The streamer (13) is formed by weaving a plurality of polyester ribbons in a double-layered manner at the proximal vibration isolation section (10), the multi-element oil-filled receiving array section (12), the load-bearing cable vulcanized hydrophone receiving array section (27) or the distal vibration isolation section (19).
2. A low-noise ribbon vertical array based on vertical vibration isolation mixing vortex breakup analysis according to claim 1, characterized in that: The main control electronic warehouse comprises an outer frame (2), a glass microbead buoyancy shell (3), a pressure-resistant shell (4), an atomic clock (5), a main control module (6), a battery pack (7), an upper acquisition storage module (8), and a lower acquisition storage module (9); the pressure-resistant shell (4) is placed in the glass microbead buoyancy shell (3), the glass microbead buoyancy shell (3) is installed in the outer frame (2), the main control module (6), the atomic clock (5), the battery pack (7), the upper acquisition storage module (8), and the lower acquisition storage module (9) are all installed in the pressure-resistant shell (4), the main control module (6) is connected to the atomic clock (5), the upper acquisition storage module (8) and the lower acquisition storage module (9) are both connected to the main control module (6), the battery pack (7) is connected to the upper acquisition storage module (8), the lower acquisition storage module (9), and the main control module (6), and the main control module (6) is connected to the vertical mixing sections at the upper and lower ends through an interconnecting cable (1).
3. A low-noise ribbon vertical array based on vertical vibration isolation mixing vortex breakup analysis according to claim 1, characterized in that: The proximal vibration isolation section (10) comprises a vibration isolation inner frame (24), a PU sheath (25), insulating oil (26), an elastic rope and a rigid rope. The vibration isolation inner frame (24) is installed in the PU sheath (25) and the PU sheath (25) is filled with insulating oil (26). One end of the elastic rope is connected to the electrical connector (11) at one end of the proximal vibration isolation section (10), and the other end of the elastic rope passes through several vibration isolation inner frames (24) and then is connected to the electrical connector (11) at the other end of the proximal vibration isolation section (10). One end of the rigid rope is connected to the electrical connector (11) at one end of the proximal vibration isolation section (10), and the other end of the rigid rope passes through several vibration isolation inner frames (24) and then is connected to the electrical connector (11) at the other end of the proximal vibration isolation section (10).
4. A low-noise ribbon vertical array based on vertical vibration isolation mixing vortex breakup analysis according to claim 3, characterized in that: The elastic rope comprises an elastic nylon rope (22).
5. The low-noise vertical ribbon array based on vertical vibration isolation mixing vortex breakup analysis according to claim 3 is characterized in that: The rigid rope comprises a Kevlar rope (23).
6. The low-noise vertical ribbon array based on vertical vibration isolation mixing vortex breakup analysis according to claim 1 is characterized in that: The load-bearing cable sulfide hydrophone receiving array segment (27) comprises a load-bearing cable (14), a hydrophone sulfide layer (15), a sulfide hydrophone (16), a sulfide load-bearing head (28) and a load-bearing connector (29); one end of the load-bearing cable (14) is connected to the electrical connector (11) at the multi-element oil-filled receiving array segment (12) through the sulfide load-bearing head (28); a plurality of hydrophone sulfide layers (15) are installed outside the load-bearing cable (14) at intervals along the axial direction of the load-bearing cable (14); a corresponding sulfide hydrophone (16) is installed in each hydrophone sulfide layer (15); and the other end of the load-bearing cable (14) is connected to the rotating isolation segment through the load-bearing connector (29).
7. The low-noise vertical ribbon array based on vertical vibration isolation mixing vortex breakup analysis according to claim 1 is characterized in that: The rotating isolation section comprises a shackle (17) and a rotating ring (18); both ends of the rotating ring (18) are respectively connected to a corresponding shackle (17), and the two shackles (17) are respectively connected to the supporting cable vulcanized hydrophone receiving array section (27) and the far-end vibration isolation section (19).
8. The low-noise vertical ribbon array based on vertical vibration isolation mixing vortex breakup analysis according to claim 2 is characterized in that: The material of the outer frame (2) and the pressure-resistant shell (4) is titanium alloy.
9. The low-noise vertical ribbon array based on vertical vibration isolation mixing vortex breakup analysis according to claim 1 is characterized in that: The multi-element oil-filled receiving array segment (12) comprises a vibration isolation inner frame (24), a PU sheath (25), insulating oil (26), an elastic rope and a rigid rope. The vibration isolation inner frame (24) is installed in the PU sheath (25) and the PU sheath (25) is filled with insulating oil (26). A plurality of hydrophones (30) arranged at intervals are installed in the vibration isolation inner frame (24). One end of the elastic rope is connected to an electrical connector (11) at one end of the proximal vibration isolation segment (10). The other end of the elastic rope passes through a plurality of vibration isolation inner frames (24) and is then connected to an electrical connector (11) at the other end of the proximal vibration isolation segment (10). One end of the rigid rope is connected to an electrical connector (11) at one end of the multi-element oil-filled receiving array segment (12). The other end of the rigid rope passes through a plurality of vibration isolation inner frames (24) and is then connected to an electrical connector (11) at the other end of the multi-element oil-filled receiving array segment (12).
Citation Information
Patent Citations
Hydrophone nested fiber damping array and processing method
CN114659615A
Perpendicular cable seismic acquisition system of multinode OBS
CN205581317U
Hierarchical stiffness optical fiber towed line array vibration isolation section
CN221445280U