CN113879450A - High-speed water-entering composite buffering structure with airfoil-shaped multistage linkage cavitator - Google Patents
High-speed water-entering composite buffering structure with airfoil-shaped multistage linkage cavitator Download PDFInfo
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- CN113879450A CN113879450A CN202111272577.4A CN202111272577A CN113879450A CN 113879450 A CN113879450 A CN 113879450A CN 202111272577 A CN202111272577 A CN 202111272577A CN 113879450 A CN113879450 A CN 113879450A
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- 230000003139 buffering effect Effects 0.000 title claims abstract description 34
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000009423 ventilation Methods 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 17
- 239000010720 hydraulic oil Substances 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000005422 blasting Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
- B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
- B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
- B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
- B63B2001/382—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes by making use of supercavitation, e.g. for underwater vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a high-speed water-entering composite buffering structure with an airfoil-shaped multistage linkage cavitator, which comprises a cavitator arranged at the head end of a navigation body, wherein the cavitator comprises a cavitator main body and a plurality of cavitator disc telescopic pieces in sliding connection with the cavitator main body, the center of the cavitator main body is connected with the center of the head of the navigation body through a damper, the front end of the cavitator main body is detachably connected with a head fairing device, and the cavitator main body is provided with a first telescopic arm for driving the cavitator disc telescopic pieces to stretch and retract along the radial direction of the cavitator main body. According to the high-speed water inlet composite buffering structure with the airfoil multistage linkage cavitator, the effective disc surface diameter of the cavitator is changed through the matching of the cavitator main body, the cavitator disc telescopic sheet and the first telescopic arm, and the purpose of controlling the size of supercavitation is further achieved.
Description
Technical Field
The invention relates to the technical field of water entry of cavitators, in particular to a high-speed water entry composite buffering structure with an airfoil-shaped multistage linkage cavitator.
Background
In order to effectively reduce the navigation resistance, the head of the underwater vehicle is generally provided with a cavitator, and the vehicle is wrapped in supercavitation generated by the cavitator. However, the conventional cavitator is an integrated fixed disk surface and does not have the function of changing the navigation state of the supercavitation. Various working conditions can be met in the underwater navigation process of the navigation body, sometimes the navigation body is difficult to maintain the state that the navigation body is completely wrapped by the supercavitation, and since the supercavitation generated by the fixed-size cavitator under the same navigation speed is fixed, when the navigation state changes, the traditional cavitator is probably incapable of ensuring that the navigation body is in the supercavitation navigation state all the time. Therefore, the adjustable cavitator is designed, the disk surface of the cavitator can be adjusted and compensated when the navigation state is changed, and the fact that the navigation body can keep the super-cavity navigation state at all times is ensured to become an important task. The flexible cavitator adjusting device is matched with a stable and precise control system, so that the navigation of the navigation body through the supercavity can be effectively controlled, the supercavity navigation can be maintained, the device has a good water-entering impact load reduction function, and the device with the combined function becomes the key point and the difficulty of the development of the underwater navigation body in the future. Meanwhile, the method has good application prospect and engineering value.
Most of the existing navigation bodies adopt foam materials or traditional dampers to carry out load reduction, and the load reduction capacity is limited.
Disclosure of Invention
According to the technical problem, the invention provides a high-speed water entering composite buffering structure with an airfoil multistage linkage cavitator, the size of the supercavitation is controlled by adjusting the effective disc surface diameter of the cavitator, and the supercavitation generated by sailing of a water entering sailing body is adjusted by utilizing the linkage of an airfoil adjusting sheet device, a first telescopic arm and a cavitator disc telescopic sheet, so that the purpose of reducing sailing resistance to the maximum extent while ensuring that the supercavitation of the sailing body has enough size to completely wrap the sailing body is achieved. The device also adopts multi-stage buffer load reduction measures such as reverse air injection, a damper, non-Newtonian fluid, a buffer air bag and the like. The control device has a strong buffering and load-reducing function while realizing the control of the cavitation process of the navigation body.
The technical means adopted by the invention are as follows:
the utility model provides a take multistage linkage cavitation ware of wing section high speed to go into compound buffer structure of water, is including setting up the cavitation ware at the head end of navigation body, the cavitation ware includes the cavitation ware main part, the center of cavitation ware main part pass through the attenuator with the head center of navigation body is connected, the front end separable connection of cavitation ware main part has the head radome fairing device, the cavitation ware is still including setting up a plurality of cavitation ware disc expansion pieces in the cavitation ware main part, it is a plurality of the cavitation ware disc expansion piece centers on the axis evenly distributed of cavitation ware main part, and with cavitation ware main part sliding connection, be equipped with the drive in the cavitation ware main part cavitation ware disc expansion piece is followed the first telescopic arm of radial flexible of cavitation ware main part.
Firstly, the disk telescopic sheet of the cavitator is of a fan-shaped structure;
the cavitator main part with the installation end of first flexible arm is articulated, just first flexible arm is radial extension, cavitator disc expansion piece is close to the one end of cavitator main part is double-disc formula structure, and two will cavitator main part centre gripping is in the centre, processing has the breach on the cavitator disc expansion piece, first flexible arm is located in the breach, just the output of first flexible arm with the tip of breach is articulated.
Firstly, a wing section adjusting sheet device is arranged around the axis of the damper;
the wing section adjusting sheet device comprises a plurality of hollow outer wing section adjusting sheets, an inner wing section adjusting sheet is arranged between every two adjacent outer wing section adjusting sheets, and two sides of the inner wing section adjusting sheet are arranged in the outer wing section adjusting sheets and are in sliding connection with the outer wing section adjusting sheets; the inner wing section adjusting sheet corresponds to the cavitator disc telescopic sheet;
the rear end of outer wing section adjustment flap with the outer edge of navigation body is articulated, the flexible arm output of the one side that interior wing section adjustment flap is close to its front end is articulated with the second that the slope set up, the stiff end of the flexible arm of second with the corresponding flexible piece fixed connection of cavitator disc of interior wing section adjustment flap.
Furthermore, a plurality of buffering air bags are arranged around the axis of the damper, a non-Newtonian fluid storage bag is connected to the front end of each buffering air bag, non-Newtonian fluid is contained in each non-Newtonian fluid storage bag, and the non-Newtonian fluid storage bags and the buffering air bags are located in a space surrounded by the navigation body, the wing section adjusting sheet device and the cavitator.
In a first step, a gas storage device is arranged in the navigation body, a first gas jet is arranged in the center of the front end of the cavitator main body, and the gas storage device is communicated with the first gas jet through a first ventilation pipeline system.
Progress one, the attenuator includes first outer sleeve, be equipped with first oil storage chamber in the first outer sleeve, be equipped with first piston rod in the first outer sleeve, the front end of first piston rod is worn out first outer sleeve with cavitator main part fixed connection, the rear end of first piston rod has first piston, first piston with part between the first outer sleeve front end is equipped with the cover and is in pull the spring on the first piston rod, the rear end of first outer sleeve with the head end fixed connection of navigation body, the rear end of first outer sleeve with part between the first piston forms first hydraulic oil cavity, just first hydraulic oil cavity with first oil storage chamber intercommunication.
Furthermore, the first ventilation pipeline system comprises a first ventilation pipe, the rear end of the first ventilation pipe is communicated with the gas storage device through a first ventilation valve, the front end of the first vent pipe sequentially passes through the center of the rear end of the first outer sleeve and the center of the first piston, and penetrates into the first piston rod and is hermetically and slidably connected with the first piston rod and the inner wall of the first piston, the first piston rod is internally provided with a buffer air cavity close to the front end thereof, the rear end of the buffer air cavity is communicated with the front end of the first vent pipe, a first pressure spring with the axis coinciding with the axis of the first piston rod is arranged in the buffer air cavity, the end surface of the first vent pipe is propped against the first pressure spring, the front end of the first piston rod is provided with a through hole communicated with the buffer air cavity, and the front end of the through hole is communicated with the first air jet through a second vent valve.
Further, the head fairing device comprises a head fairing and a fairing support, the head fairing is detachably connected with the front end of the fairing support, and the rear end of the fairing support is detachably connected with the first air vent of the cavitator body.
Firstly, the first telescopic arm comprises a telescopic arm outer sleeve, a telescopic arm piston matched with the telescopic arm outer sleeve is arranged in the telescopic arm outer sleeve, the telescopic arm outer sleeve is divided into two parts by the telescopic arm piston, one part is a telescopic arm air cavity, and the telescopic arm air is communicated with the through hole through a hose and a third air valve; a telescopic arm piston rod is arranged in the other part of the telescopic arm, the telescopic arm piston rod penetrates out of the telescopic arm outer sleeve, and a second pressure spring is sleeved on the part, located in the telescopic arm outer sleeve, of the telescopic arm piston rod;
the telescopic arm outer sleeve is connected with the cavitator main body, and one end, far away from the telescopic arm piston, of the telescopic arm piston rod is connected with the cavitator disc telescopic sheet.
The utility model provides a progress first, the flexible arm of second includes the outer sleeve of second, be equipped with second oil storage chamber in the outer sleeve of second, be equipped with the second piston rod in the outer sleeve of second, the rear end of second piston rod is worn out the outer sleeve of second with interior wing section adjustment sheet is articulated, the front end of second piston rod has the second piston, the second piston with part between the outer sleeve front end of second is equipped with the cover and is in third pressure spring on the second piston rod, the outer sleeve front end of second with the flexible piece of cavitator disc is articulated, the outer sleeve front end of second with part between the second piston forms the second hydraulic oil cavity, just the second hydraulic oil cavity with second oil storage chamber intercommunication.
Compared with the prior art, the invention has the following advantages:
1. according to the high-speed water inlet composite buffering structure with the airfoil multistage linkage cavitator, the effective disc surface diameter of the cavitator is changed through the matching of the cavitator main body, the cavitator disc telescopic sheet and the first telescopic arm, and the purpose of controlling the size of supercavitation is further achieved.
2. The invention utilizes the linkage of the wing section adjusting sheet device, the first telescopic arm and the cavitator disc telescopic sheet to realize the adjustment of the size of the supercavitation generated by the navigation body, and simultaneously can reduce the navigation resistance to the maximum extent and can realize the large-range reduction of the navigation resistance of the navigation body in the flight process.
3. The invention adopts the measures of multistage buffering load reduction such as reverse air injection of the first air injection port, damping buffering of the damper, flexible buffering of the non-Newtonian fluid and the buffering air bag, and the like to realize multistage load reduction in the water entering process of the navigation body.
4. After the disk telescopic pieces of the cavitator are completely stretched before entering water, when high-speed airflow facing the water surface passes through the surfaces of the wing-shaped adjusting pieces, the thrust F outwards from the inner sides of the wing-shaped adjusting pieces is provided according to the Bernoulli principle, and each telescopic arm is assisted to keep the disk telescopic pieces of the cavitator in a stretched stable state all the time before entering water. The larger cavitator disc area is more conducive to the generation of large supercavitation.
Based on the reasons, the invention can be widely popularized in the fields of sailing bodies entering water and the like.
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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a three-dimensional view of a high-speed water-entering composite buffering structure with an airfoil multi-stage linkage cavitator in the embodiment of the invention.
Fig. 2 is a front view of a high-speed water-entering composite buffering structure with an airfoil multi-stage linkage cavitator in the embodiment of the invention.
Fig. 3 is a sectional view taken along line a-a in fig. 2.
Fig. 4 is an enlarged schematic view of the front end of a high-speed water-entering composite buffering structure with an airfoil multistage linkage cavitator in the embodiment of the invention.
FIG. 5 is a schematic view of the configuration of the cavitator in accordance with an embodiment of the present invention (only one cavitator disk retractor blade, one outer airfoil vane and one inner airfoil vane are retained).
FIG. 6 is a schematic view of the shrinker disk of the cavitator in accordance with the present invention.
FIG. 7 is a schematic view of the carburetor disc expansion piece shown expanded in accordance with an embodiment of the present invention.
Fig. 8 is a schematic view of a damper and a first vent line system in accordance with an embodiment of the present invention.
Fig. 9 is a schematic structural view of a first telescopic arm and a second telescopic arm in the embodiment of the present invention.
FIG. 10 is a schematic view of a head fairing device according to an embodiment of the invention.
Fig. 11 is a schematic view of a navigation body in the air in the embodiment of the invention.
Fig. 12 is a schematic diagram of the embodiment of the invention after the fairing of the head part of the navigation body close to the water surface is separated.
Fig. 13 is a schematic diagram of the navigation body after the support of the fairing near the water surface is separated in the embodiment of the invention.
FIG. 14 is a schematic view of the first jet port of the vehicle near the water surface for jetting gas in accordance with an embodiment of the present invention.
FIG. 15 is a schematic view of the navigation body in water in the super vacuole in accordance with the embodiment of the present invention.
FIG. 16 is a schematic view of the force exerted by the front end of an airfoil shaped flap assembly after expansion according to an embodiment of the present invention.
In the figure: 1. a navigation body; 2. a cavitator; 201. a cavitator body; 202. a cavitator disc expansion piece; 3. a damper; 301. a damper base; 302. a first outer sleeve; 303. a first piston rod; 304. a first piston; 305. pulling the spring; 306. a first hydraulic oil chamber; 4. a head fairing device; 401. a head fairing; 402. a cowl brace; 5. a first telescopic arm; 501. an outer telescopic arm sleeve; 502. a telescopic arm piston; 503. a telescopic arm air cavity; 504. a hose; 505. a telescopic arm piston rod; 506. a second compression spring; 507. a third vent valve; 6. a gas storage device; 601. a first air injection port; 602. a first vent pipe; 603. a first vent valve; 604. a first compression spring; 605. a through hole; 606. a second vent valve; 7. a wing tab device; 701. an outer airfoil adjustment tab; 702. an inner airfoil adjustment tab; 703. a side cowl; 8. a buffer air bag; 9. a non-Newtonian fluid storage bag; 10. a second telescopic arm; 1001. a second outer sleeve; 1002. a second piston rod; 1003. a second piston; 1004. a third compression spring; 1005. a second hydraulic oil chamber.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1 to 16, the invention discloses a high-speed water-entering composite buffering structure with an airfoil multistage linkage cavitator, which comprises a cavitator 2 arranged at the head end of a navigation body 1, wherein the cavitator 2 comprises a cavitator main body 201, the center of the cavitator main body 201 is connected with the head center of the navigation body 1 through a damper 3, the front end of the cavitator main body 201 is detachably connected with a head fairing device 4, the cavitator 2 further comprises a plurality of cavitator disc telescopic pieces 202 arranged on the cavitator main body 201, the plurality of cavitator disc telescopic pieces 202 are uniformly distributed around the axis of the cavitator main body 201 and are in sliding connection with the cavitator main body 201, and a first telescopic arm 5 for driving the cavitator disc telescopic pieces 202 to be telescopic along the radial direction of the cavitator main body 201 is arranged on the cavitator main body 201.
A wing profile adjusting sheet device 7 is arranged around the axis of the damper 3;
a plurality of buffer air bags 8 are arranged around the axis of the damper 3, a non-Newtonian fluid storage bag 9 is connected to the front end of each buffer air bag 8, a non-Newtonian fluid is contained in each non-Newtonian fluid storage bag 9, and the non-Newtonian fluid storage bags 9 and the buffer air bags 8 are located in a space surrounded by the navigation body 1, the wing section adjusting plate device 7 and the cavitator 2.
The airfoil adjustment sheet device 7 comprises a plurality of hollow outer airfoil adjustment sheets 701, an inner airfoil adjustment sheet 702 is arranged between two adjacent outer airfoil adjustment sheets 701, and two sides of the inner airfoil adjustment sheet 702 are arranged in the outer airfoil adjustment sheets 701 and are connected with the outer airfoil adjustment sheets 701 in a sliding manner; the inner airfoil adjustment tabs 702 correspond to the cavitator disc shims 202 (both in number and position); the cavity of the outer airfoil regulating blade 701 requires that the inner airfoil regulating blade 702 can complete certain up-down and left-right movement in the cavity, the purpose of limiting the movement of the outer airfoil regulating blade 701 can be achieved by accurately calculating the section of the outer airfoil regulating blade 701, the radial movement range of the cavitator disc telescopic blade 202 is indirectly limited, and the disc telescopic size of the cavitator 2 is finally limited.
The rear end of outer airfoil adjustment piece 701 with the outer edge of navigation body 1 is articulated (in this embodiment the outer edge of navigation body 1 is fixed with side fairing 703, the rear end of outer airfoil adjustment piece 701 with side fairing 703 is articulated, and side fairing 703 is integrated into one piece, and the material is high strength aluminum alloy material), one side that interior airfoil adjustment piece 702 is close to its rear end is articulated with the output of the flexible arm 10 of second that the slope set up, the stiff end of the flexible arm 10 of second with the corresponding flexible piece 202 fixed connection of cavitator disc of interior airfoil adjustment piece 702.
The second telescopic arm 10 comprises a second outer sleeve 1001, a second oil storage cavity is arranged in the second outer sleeve 1001, a second piston rod 1002 is arranged in the second outer sleeve 1001, the rear end of the second piston rod 1002 penetrates out of the second outer sleeve 1001 and is hinged to the inner wing type adjusting plate 702, a second piston 1003 is arranged at the front end of the second piston rod 1002, a third pressure spring 1004 sleeved on the second piston rod 1002 is arranged on the portion between the second piston 1003 and the front end of the second outer sleeve 1001, the front end of the second outer sleeve 1001 is hinged to the cavitator disc telescopic plate 202, a second hydraulic oil cavity 1005 is formed on the portion between the front end of the second outer sleeve 1001 and the second piston 1003, and the second hydraulic oil cavity 1005 is communicated with the second oil storage cavity.
The navigation body 1 is internally provided with a gas storage device 6, the front end center of the cavitator main body 201 is provided with a first gas nozzle 601, and the gas storage device 6 is communicated with the first gas nozzle 601 through a first ventilation pipeline system.
The first ventilation pipeline system comprises a first ventilation pipe 602, the rear end of the first ventilation pipe 602 is communicated with the gas storage device 6 through a first ventilation valve 603, the front end of the first ventilation pipe 602 sequentially passes through the center of the rear end of the first outer sleeve 302 and the center of the first piston 304 and penetrates into the first piston rod 303, the first ventilation pipe 602 is hermetically connected with the first outer sleeve 302 and hermetically and slidably connected with the inner walls of the first piston rod 303 and the first piston 304, a buffer gas cavity is arranged inside the first piston rod 303 close to the front end of the first piston rod 303, the rear end of the buffer gas cavity is communicated with the front end of the first ventilation pipe 602, a first pressure spring 604 with the axis coincident with the axis of the first piston rod 303 is arranged in the buffer gas cavity, the end surface of the first ventilation pipe 602 abuts against the first pressure spring 604, and a through hole 605 communicated with the buffer gas cavity is arranged at the front end of the first piston rod 303, the front end of the through hole 605 is communicated with the first air injection port 601 through a second air vent valve 606.
The cavitator disc telescopic sheet 202 is of a fan-shaped structure;
the cavitator main body is hinged with the mounting end of the first telescopic arm 5, the first telescopic arm 5 extends radially, one end, close to the cavitator main body 201, of the cavitator disc telescopic sheet 202 is of a double-sheet structure, the cavitator main body 201 is clamped between the two telescopic sheets, and a notch is machined in the cavitator disc telescopic sheet 202; the first telescopic boom 5 comprises a telescopic boom outer sleeve 501, a telescopic boom piston 502 matched with the telescopic boom outer sleeve 501 is arranged in the telescopic boom outer sleeve 501, the telescopic boom piston 502 divides the telescopic boom outer sleeve 501 into two parts, one part is a telescopic boom air cavity 503, and the telescopic boom air cavity 503 is communicated with the through hole 605 through a hose 504 and a third air valve 507; the other part is provided with a telescopic arm piston rod 505, the telescopic arm piston rod 505 penetrates through the telescopic arm outer sleeve 501, and a part of the telescopic arm piston rod 505, which is positioned in the telescopic arm outer sleeve 501, is sleeved with a second compression spring 506; the telescopic arm outer sleeve 501 is located in the gap, the end of the telescopic arm outer sleeve 501 is hinged to the cavitator body 201, and the output end of the telescopic arm piston rod 505 is hinged to the end of the gap. Deflation of the telescopic arm air chamber 503 may be achieved by providing a deflation valve or other means.
The head cowling device 4 includes a head cowling 401 and a cowling support 402, and the head cowling 401 is detachably connected to the front end of the cowling support 402 and the rear end of the cowling support 402 is detachably connected to the first air vent 601 of the cavitator main body 201. The head fairing 401 is in a conical shape or a pointed arch shape, the head fairing 401 is composed of a multi-petal shell, and two adjacent petal shells are connected through a connecting structure; the connecting structure is provided with a blasting device, the navigation body 1 is internally provided with a detonating device for detonating the blasting device, and after the detonating device detonates the blasting device, the fairing is separated along the connecting structure between the two adjacent sections of shells. The connecting structure is a weak structure, can be made of strong glue, can bond two adjacent shells together, can be made of a thin plate, and is fixedly connected with the two adjacent shells, so that certain strength is ensured, air resistance in high-speed flight in the air can be borne, the air tightness is maintained, and deformation or damage is avoided; meanwhile, blasting decomposition of the wire-explosion structure installed inside can be realized, so that the head fairing 401 made of alloy is separated. The rear end of the fairing support 402 is connected with the first gas injection port 601 in an adsorption mode through an electromagnet, and when the electromagnet is not in adsorption mode, gas sprayed out of the first gas injection port 601 blows away the fairing support 402.
Under the working state:
as shown in fig. 11, the navigation body 1 firstly flies in the air for a certain distance, at this time, in order to reduce the flight resistance, the first telescopic arm 5 and the second telescopic arm 10 are adjusted to make the cavitator disc telescopic piece 202 contract inwards in the radial direction, and the side of the airfoil regulating piece device 7 close to the head fairing 401 contracts inwards, so that the cavitator 2 and the airfoil regulating piece device 7 are integrally well streamlined to reduce the flight wind resistance (fig. 6).
As shown in fig. 12, when the sensor detects that the vehicle 1 is a certain distance from the water surface, the blasting device is detonated by the detonating device in the vehicle 1 to blast the joint of the multi-lobe structure of the head fairing 401, and the head fairing shell 401 is detached and pulled out.
As shown in fig. 13, the electromagnet that fixes the cowl support 402 and the first jet port 601 is deenergized, and the cowl support 402 is blown out of the cavitator 2 by the high-pressure gas, whereby the separation of the head cowl 401 and the cowl support 402 from the cavitator 2 is completed.
As shown in fig. 14, at the same time, the first ventilation valve 603 and the second ventilation valve 606 are controlled to be opened, and at this time, the high-pressure gas stored in the gas storage device 6 is ejected from the first air ejection port 601 through the first ventilation pipe 602 and the through hole 605, and is ejected toward the water surface, so that the vehicle 1 performs reverse air ejection speed reduction and load shedding.
As shown in fig. 15, when the navigation body 1 further approaches the water surface, the first vent valve 603 and the third vent valve 507 are opened, the high-pressure gas in the gas storage device 6 enters the telescopic arm air chamber 503 through the first vent pipe 602, the through hole 605 and the hose 504, the telescopic arm piston rod 505 is pushed outwards (in the radial direction) thereby, the second compression spring 506 is pressed, and the cavitator disc expansion piece 202 expands outwards along the disc radial direction under the push of the telescopic arm piston rod 505, so that the cavitator 2 is unfolded (fig. 7). Meanwhile, under the driving of the second telescopic arm 10, the inner wing section adjusting sheet 702 also extends outwards to drive the outer wing section adjusting sheet to also extend outwards, so that the radial size of the cavitator 2 is enlarged, and meanwhile, high-speed airflow passes through the wing section tips of the outer wing section adjusting sheet 701 and the inner wing section adjusting sheet 702 to generate larger outward thrust (as shown in fig. 16), so that the first telescopic arm 5 and the second telescopic arm 10 are assisted to keep the wing section adjusting sheet device in an expansion state until the navigation body 1 collides with water. In the millisecond time of water collision, the damper 3, the non-Newtonian fluid in the non-Newtonian fluid storage bag 9, the buffer air bag 8 and the second telescopic arm 10 simultaneously carry out load reduction on the navigation body 1. After entering water, the navigation body 1 can continuously keep a state of being completely wrapped by the supercavitation.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a take multistage linkage cavitation ware of wing section high speed to go into compound buffer structure of water, is including setting up the cavitation ware at the head end of navigation body, the cavitation ware includes the cavitation ware main part, its characterized in that, the center of cavitation ware main part pass through the attenuator with the head center of navigation body is connected, the front end separable of cavitation ware main part is connected with head fairing device, the cavitation ware is still including setting up a plurality of cavitation ware disc expansion pieces in the cavitation ware main part, it is a plurality of the cavitation ware disc expansion piece centers on the axis evenly distributed of cavitation ware main part, and with cavitation ware main part sliding connection, be equipped with the drive in the cavitation ware main part cavitation ware disc expansion piece is followed the first telescopic arm of radial flexible of cavitation ware main part.
2. The high-speed water inlet composite buffering structure with the airfoil multistage linkage cavitator is characterized in that the disk expansion pieces of the cavitator are of a fan-shaped structure;
the cavitator main part with the installation end of first flexible arm is articulated, just first flexible arm is radial extension, cavitator disc expansion piece is close to the one end of cavitator main part is double-disc formula structure, and two will cavitator main part centre gripping is in the centre, processing has the breach on the cavitator disc expansion piece, first flexible arm is located in the breach, just the output of first flexible arm with the tip of breach is articulated.
3. The high-speed water inlet composite buffering structure with the airfoil multistage linkage cavitator as recited in claim 1, wherein an airfoil adjusting sheet device is arranged around the axis of the damper;
the wing section adjusting sheet device comprises a plurality of hollow outer wing section adjusting sheets, an inner wing section adjusting sheet is arranged between every two adjacent outer wing section adjusting sheets, and two sides of the inner wing section adjusting sheet are arranged in the outer wing section adjusting sheets and are in sliding connection with the outer wing section adjusting sheets; the inner wing section adjusting sheet corresponds to the cavitator disc telescopic sheet;
the rear end of outer wing section adjustment flap with the outer edge of navigation body is articulated, the flexible arm output of the one side that interior wing section adjustment flap is close to its front end is articulated with the second that the slope set up, the stiff end of the flexible arm of second with the corresponding flexible piece fixed connection of cavitator disc of interior wing section adjustment flap.
4. The high-speed water inlet composite buffering structure with the wing-type multistage linkage cavitator as claimed in claim 3, wherein a plurality of buffering air bags are arranged around the axis of the damper, a non-Newtonian fluid storage bag is connected to the front end of each buffering air bag, a non-Newtonian fluid is contained in each non-Newtonian fluid storage bag, and the non-Newtonian fluid storage bags and the buffering air bags are located in a space surrounded by the navigation body, the wing-type adjusting sheet device and the cavitator.
5. The high-speed water inlet composite buffering structure with the wing-type multistage linkage cavitator as claimed in claim 1, wherein a gas storage device is arranged in the navigation body, a first gas nozzle is arranged at the center of the front end of the cavitator body, and the gas storage device is communicated with the first gas nozzle through a first ventilation pipeline system.
6. The high-speed compound buffer structure that entries of multistage linkage cavitator of area wing section of claim 5, a serial communication port, the attenuator includes first outer sleeve, be equipped with first oil storage chamber in the first outer sleeve, be equipped with first piston rod in the first outer sleeve, the front end of first piston rod is worn out first outer sleeve with cavitator main part fixed connection, the rear end of first piston rod has first piston, first piston with part between the first outer sleeve front end is equipped with the cover and is in the last spring that draws of first piston rod, the rear end of first outer sleeve with the head end fixed connection of navigation body, the rear end of first outer sleeve with part between the first piston forms first hydraulic oil cavity, just first hydraulic oil cavity with first oil storage chamber intercommunication.
7. The high-speed water inlet composite buffering structure with the wing-shaped multistage linkage cavitator as claimed in claim 6, wherein the first ventilation pipeline system comprises a first ventilation pipe, the rear end of the first ventilation pipe is communicated with the gas storage device through a first ventilation valve, the front end of the first ventilation pipe sequentially passes through the center of the rear end of the first outer sleeve and the center of the first piston, penetrates into the first piston rod, and is hermetically and slidably connected with the first piston rod and the inner wall of the first piston, a buffering gas cavity is arranged inside the first piston rod close to the front end of the first piston rod, the rear end of the buffering gas cavity is communicated with the front end of the first ventilation pipe, a first compression spring with the axis coincident with the axis of the first piston rod is arranged in the buffering gas cavity, the end surface of the first ventilation pipe is abutted against the first compression spring, and a through hole communicated with the buffering gas cavity is arranged at the front end of the first piston rod, the front end of the through hole is communicated with the first air nozzle through a second vent valve.
8. The high-speed water inlet composite buffering structure with the airfoil multistage linkage cavitator as recited in claim 7, wherein the head fairing device comprises a head fairing and a fairing support, the head fairing is detachably connected with the front end of the fairing support, and the rear end of the fairing support is detachably connected with the first air vent of the cavitator body.
9. The high-speed water inlet composite buffering structure with the wing-type multistage linkage cavitator as claimed in claim 6, wherein the first telescopic arm comprises a telescopic arm outer sleeve, a telescopic arm piston matched with the telescopic arm outer sleeve is arranged in the telescopic arm outer sleeve, the telescopic arm piston divides the telescopic arm outer sleeve into two parts, one part is a telescopic arm air cavity, and the telescopic arm air is communicated with the through hole through a hose and a third air valve; a telescopic arm piston rod is arranged in the other part of the telescopic arm, the telescopic arm piston rod penetrates out of the telescopic arm outer sleeve, and a second pressure spring is sleeved on the part, located in the telescopic arm outer sleeve, of the telescopic arm piston rod;
the end part of the telescopic arm outer sleeve is hinged with the cavitator main body, and one end, far away from the telescopic arm piston, of the telescopic arm piston rod is hinged with the cavitator disc telescopic sheet.
10. The high-speed water-entering composite buffering structure with the wing-type multistage linkage cavitator as claimed in claim 3, wherein the second telescopic arm comprises a second outer sleeve, a second oil storage cavity is arranged in the second outer sleeve, a second piston rod is arranged in the second outer sleeve, the rear end of the second piston rod penetrates out of the second outer sleeve and is hinged to the inner wing-type adjusting sheet, a second piston is arranged at the front end of the second piston rod, a third pressure spring sleeved on the second piston rod is arranged on the portion between the front ends of the second outer sleeve and is sleeved on the front end of the second outer sleeve, the front end of the second outer sleeve is hinged to the cavitator disc telescopic sheet, a second hydraulic oil cavity is formed at the front end of the second outer sleeve and between the second piston, and the second hydraulic oil cavity is communicated with the second oil storage cavity.
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| CN202111272577.4A CN113879450B (en) | 2021-10-29 | 2021-10-29 | High-speed water-entering composite buffer structure with wing type multistage linkage cavitation device |
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