CN109606532A - Fluid drag-reduction noise reduction intelligent skin structure based on magnetorheological elastic material - Google Patents
Fluid drag-reduction noise reduction intelligent skin structure based on magnetorheological elastic material Download PDFInfo
- Publication number
- CN109606532A CN109606532A CN201811567140.1A CN201811567140A CN109606532A CN 109606532 A CN109606532 A CN 109606532A CN 201811567140 A CN201811567140 A CN 201811567140A CN 109606532 A CN109606532 A CN 109606532A
- Authority
- CN
- China
- Prior art keywords
- class
- buoyant raft
- reduction
- elastic material
- fluid drag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- B63B1/40—Other means for varying the inherent hydrodynamic characteristics of hulls by diminishing wave resistance
-
- 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
- B63B2001/327—Other means for varying the inherent hydrodynamic characteristics of hulls using magneto-hydrodynamic forces
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Laminated Bodies (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention provides a kind of fluid drag-reduction noise reduction intelligent skin structure based on magnetorheological elastic material, including endepidermis, exocuticle and interlayer structure；Interlayer structure upper and lower ends are stained with endepidermis, are stained with exocuticle on the surface of endepidermis；The interlayer structure is made of class buoyant raft micro unit；The class buoyant raft micro unit includes magnetic rheology elastic body, magnetizer and column；The column has two up and down, and the magnetizer of left and right two is connect by magnetic rheology elastic body with upper and lower two columns, is provided with coil between class buoyant raft micro unit.Class buoyant raft micro unit of the present invention can utilize the design of two layers elastic element damping and intermediate mass, it controls and absorbs, decay elastic wave, there is good inhibiting effect for the Flow vibration as caused by multiple spot, multidirectional turbulence driver and Flow vibration noise, upper lower epidermis flexible structure can respond turbulence driver, realize fluid drag-reduction decrease of noise functions.
Description
Technical field
The present invention relates to a kind of intelligent skin structure more particularly to a kind of fluid drag-reduction drops based on magnetorheological elastic material
It makes an uproar intelligent skin structure.
Background technique
Submarine is a kind of submarine navigation device strong with cruising ability, and various countries experts and scholars are in terms of the research of novel submarines
Put into it is huge, slight drag, low noise be always its research emphasis direction.
Flow noise and flow induced vibration noise are the piths for constituting submarine noise, and when the speed of a ship or plane improves, noise sharply increases
Add, laying covering in vehicle hull surface is a kind of effective means for solving the problems, such as this under water, and aircraft surface is sprayed under water
Apply one layer of flexible cover of elastic coating or laying, field of turbulent flow when the flexible effect of coating can inhibit and absorb high speed operation
Pressure fluctuation, inhibit turbulence intensity, to realize effective control to ship resistance and noise.The method cost is relatively low and
It is easily achieved, and drag-reduction effect is obvious.Meanwhile the ship resistance of submarine and noise are controlled using covering technology
Method compared to change submarine contour structures required workload and cost it is relatively small, therefore the means have it is wide
Application prospect.
Summary of the invention
A kind of base is provided the purpose of the invention is to effectively realize the function of the vibration damping of shell and surface reducing noise and drag
In the fluid drag-reduction noise reduction intelligent skin structure of magnetorheological elastic material.
The object of the present invention is achieved like this:
A kind of fluid drag-reduction noise reduction intelligent skin structure based on magnetorheological elastic material, including endepidermis, exocuticle with
And interlayer structure；Interlayer structure upper and lower ends are stained with endepidermis, are stained with exocuticle on the surface of endepidermis；In described
Interstratified structure is made of class buoyant raft micro unit；
The class buoyant raft micro unit includes magnetic rheology elastic body, magnetizer and column；The column has two up and down, left and right
Two magnetizers are connect by magnetic rheology elastic body with upper and lower two columns, are provided with coil between class buoyant raft micro unit.
The invention also includes features some in this way:
1. the magnetizer connecting portion is prism；
2. the prism is the isosceles triangle that cross section is 90 ° or 120 ° of apex angle；
3. the edge of the interlayer structure is additionally provided with link block；
4. the class buoyant raft micro unit sorts at array；
5. the class buoyant raft micro-cell array sequence group is combined into quadrangle or hexagon；
6. the endepidermis or exocuticle are smooth thin toughness film's material；
7. the thin-film material is polyurethane material or rubber material.
Compared with prior art, the beneficial effects of the present invention are:
1, smart skins class buoyant raft micro unit of the invention is the vibration insulation structure with Double-layer elastic element.It is each micro- after array
The mass unit magnetizer of unit is connected with each other, that is, constitutes the vibrating isolation system of type buoyant raft array formation.The structure can
It using the design of two layers elastic element damping and intermediate mass, controls and absorbs, decay elastic wave, for by multiple spot, multidirectional
Flow vibration caused by turbulence driver and Flow vibration noise have good inhibiting effect.
2, the flexible structure that smart skins class buoyant raft micro unit of the invention and the thin tough covering of upper layer and lower layer are constituted can
Turbulence driver is responded, the flow field around skin-surface is influenced, inhibits the formation and development of turbulent flow, to Turbulent Coherent Structures
Control action is generated, to realize fluid drag-reduction decrease of noise functions.
3, in smart skins class buoyant raft microcellular structure of the invention, elastic element is with the magnetorheological of magnetic rheology effect
Elastomeric material.Compared to the immutable traditional elastic components of stiffness and damping, the elasticity modulus of magnetic rheology elastic body and loss because
Son can change with applied field strengths, and response is rapidly and with excellent controllability, invertibity and stability.It is flowed through by changing
The size of current of coil changes magnetorheological body ambient magnetic field strength, then adjusts the rigidity and damping parameter of magnetorheological body,
The ability for making it have control broadband excitation vibration, realizes the semi- active control vibrated to skin-surface, to adapt to not cocurrent flow
Speed is lauched the drag reduction and noise reduction of lower navigation unit by water and aircraft, achievees the purpose that reducing noise and drag functional intellectualization.
4, smart skins class buoyant raft micro unit interlayer structure of the invention, can be by several micro- lists of smart skins class buoyant raft
Member splices and combines as various forms of assembled units such as quadrangle, hexagon, and different underwater navigation unit by water are suitable for after array
And the various contoured surface forms or working condition of aircraft；Meanwhile the edge of interlayer structure will be spliced using link block
Locate cross section polishing be with identical cross-sectional shape at intermediate combination unit spliced, make the structural module, it is big to be suitable for
Modular combination when area, complex-curved laying splices laying.
Detailed description of the invention
Fig. 1 is three dimensional structure diagram of the invention；
Fig. 2 is the three dimensional structure diagram of smart skins class buoyant raft micro unit in Fig. 1；
Fig. 3 is the three dimensional structure diagram of smart skins class buoyant raft micro unit composite structure in Fig. 1；
Fig. 4 is the two-dimensional top-down view of smart skins intermediate layer of material structure in Fig. 1；
Fig. 5 is the three dimensional structure diagram of smart skins intermediate layer of material structure in Fig. 1；
Fig. 6 is the three dimensional structure diagram of another smart skins class buoyant raft micro unit composite structure of the invention；
Fig. 7 is the two-dimensional top-down view of another interlayer structure of the invention；
Fig. 8 is the three dimensional structure diagram of another interlayer structure of the invention；
Fig. 9 is operation principle schematic diagram of the present invention.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing.
1 it is endepidermis in figure, 2 be interlayer structure, 3 be exocuticle, 4 be class buoyant raft micro unit, 5 be magnetizer, 6 is magnetic
Magnetorheological elastomer, 7 be column, 8 be coil, 9 be link block, 10 be turbulence driver, 11 be underwater navigation unit by water or aircraft
Shell, 12 are magnetic induction line.
The invention proposes the fluid drag-reduction noise reduction intelligent skin structure based on magnetorheological elastic material, which is based on magnetic
Magnetorheological elastomer constructs a kind of smart skins class buoyant raft microcellular structure, carried out in the form of periodic arrangement etc. arrangement and will be smooth
Flexible exocuticle is adhered thereto, and a kind of fluid drag-reduction noise reduction smart skins based on magnetorheological elastic material are made.It will cover
Skin is covered in underwater navigation unit by water or aircraft can effectively realize the vibration damping of shell and the function of surface reducing noise and drag.
The present invention is the smart skins based on magnetorheological elastic material with vibration damping and reducing noise and drag function, including internal layer
Covering, exocuticle, and the interlayer structure being made up of several intelligent class buoyant raft micro units array format.Based on magnetorheological
Elastomer building intelligent class buoyant raft microcellular structure mainly by magnetic rheology elastic body (being equivalent to buoyant raft elastic damping element), lead
Magnet and coil (being equivalent to buoyant raft mass unit) and column (being equivalent to lower platform on buoyant raft) etc. are constituted；Inside and outside epidermis is light
Sliding thin toughness film's material, directly contacts with fluid.By the class buoyant raft microcellular structure constructed based on magnetic rheology elastic body with
The forms such as periodic arrangement are arranged, then exocuticle is adhered thereto, and a kind of fluid based on magnetorheological elastic material is made
Reducing noise and drag smart skins.
In above-mentioned technical proposal, the smart skins class buoyant raft micro unit (is equivalent to buoyant raft matter by magnetizer and coil
Measure unit), magnetic rheology elastic body (being equivalent to buoyant raft elastic damping element), the composition such as column (being equivalent to lower platform on buoyant raft),
Constitute the smart skins class buoyant raft micro unit with class buoyant raft vibration insulation structure.
Elastic element in the smart skins class buoyant raft microcellular structure is the magnetorheological bullet with magnetic rheology effect
Elastomer material can modulate its rigidity and damping by changing the size of current of hot-wire coil, what skin-surface was vibrated in realization
Semi- active control, and then achieve the purpose that reducing noise and drag.
The stressed-skin construction can be by several smart skins class buoyant raft micro units by splicing and combining as quadrangle, six sides
Various forms of assembled units such as shape, be suitable for after array different underwater navigation unit by water and aircraft various configurations of surface or
Working condition.
As shown in Figure 1, a kind of reducing noise and drag smart skins based on magnetorheological elastic material of the present invention, including it is interior
Epidermis 1, interlayer structure 2 and exocuticle 3.Endepidermis 1 and exocuticle 3 by frivolous and the polyurethane material of flexible or
Rubber material etc. is made, and endepidermis 1 is laid in 11 surface of underwater navigation unit by water or aircraft shell, exocuticle 3 then with fluid
Directly contact；Interlayer structure 2 is by several smart skins class buoyant raft micro units 4 based on magnetic rheology elastic body building according to
Determine spread pattern array to form；Interlayer structure 2 is fixed between endepidermis 1 and exocuticle 3 using seccotine.
As shown in Fig. 2, every 1 smart skins class buoyant raft micro unit 4 is by 2 magnetizers, 5,4 magnetic rheology elastic bodies 6,2
A column 7 forms.Magnetizer 5 can make the direction of magnetic field concentration caused by hot-wire coil and control magnetic flux；By magnetorheological bullet
Property body 6 solidification or be pasted between magnetizer 5 and column 7, magnetic loop is formed in smart skins class buoyant raft micro unit 4, then magnetic
The rigidity and damping parameter of magnetorheological elastomer 6 can be adjusted by way of changing hot-wire coil size of current.Meanwhile making
For the connector between smart skins class buoyant raft micro unit 4, the connecting portion of magnetizer 5 is processed into particular cross section shape
The prism of shape, in order to the splicing between unit.
In conjunction with Fig. 3, Fig. 4, Fig. 5, the building of one of interlayer structure 2 of the invention is illustrated.Smart skins
Connector of the magnetizer 5 as each unit in class buoyant raft micro unit 4, connecting portion can be processed into varying cross-section shape
Prism, if 5 connecting portion of magnetizer is processed as the prism for the isosceles triangle that cross section is 90 ° of apex angle in Fig. 3, respectively by four
The magnetizer 5 of 4 side of smart skins class buoyant raft micro unit splices and is fixed into the prism that cross section is square, and coil 8 is twined
The connection being around between stitching portion realization smart skins class buoyant raft micro unit 4；In such a manner by smart skins class buoyant raft micro unit 4
Array at smart skins interlayer structure 2, edge use link block 9 by stitching portion cross section polishing for intermediate combination list
The identical cross-sectional shape in first stitching portion, makes the structural module, with the modularization being suitable for when large area, complex-curved laying
Combined and spliced laying.
In conjunction with Fig. 6, Fig. 7, Fig. 8, the building of wherein another interlayer structure 2 of the invention is illustrated.In Fig. 6
5 connecting portion of magnetizer is processed as the prism for the isosceles triangle that cross section is 120 ° of apex angle, respectively by three smart skins classes
The magnetizer 5 of 4 side of buoyant raft micro unit splices and is fixed into the prism that cross section is equilateral triangle, and coil 8 is wound in splicing
Realize the connection between smart skins class buoyant raft micro unit 4 in place；Likewise, 4 array of smart skins class buoyant raft micro unit is constituted another
A kind of interlayer structure 2 of smart skins.
In conjunction with Fig. 9, the working principle of the invention is illustrated.It will be laid based on the smart skins of magnetorheological elastic material
In the surface of underwater navigation unit by water or aircraft shell 11, when underwater navigation unit by water or aircraft are in high-speed motion, outside
Epidermis 1 is directly contacted with fluid, and surface is by turbulence driver 10.
The flexible structure energy that the interlayer structure 2 and inner surface 1, the outer surface tough covering of 3 two layers of thin of smart skins are constituted
It is enough that turbulence driver 10 is responded, the flow field around skin-surface is influenced, the formation and development of turbulent flow are inhibited, it is relevant to turbulent flow
Structure generates control action, to realize fluid drag-reduction decrease of noise functions.
Turbulence driver 10 is transferred to several columns 7 being in contact with exocuticle, magnetizer 5, magnetic in the form that multiple spot vibrates
Magnetorheological elastomer 6 and column 7, which constitute double-layer vibration isolating structure, effectively to absorb the specific elastic wave compared under frequency band
With decaying；After several coils 8 are powered, magnetic circuit as shown in Figure 8 is formd, magnetic field passes through magnetic rheology elastic body via magnetizer 5
6；The size of current that coil 8 is flowed through by changing, changes magnetorheological 6 ambient magnetic field strength of body, then adjusts magnetorheological body 6
Rigidity and damping parameter, make it have control broadband excitation vibration ability, realize to skin-surface vibrate half active
Control, to adapt to being effectively reduced for the Flow vibration noise different in flow rate for being lauched lower navigation unit by water or aircraft shell.
Illustrative description is done to the present invention above, it should which explanation, embodiments of the present invention are not limited to
Above description carries out some simple modifications or substitutions on its basis and all answers as long as surrounding core of the invention content
It is considered as protection scope of the present invention.
In summary: proposing a kind of class buoyant raft reducing noise and drag intelligent skin structure based on magnetorheological elastic material, be applicable in
In the fluid drag-reduction decrease of noise functions for realizing underwater navigation unit by water and aircraft.The present invention include endepidermis, exocuticle and by
The interlayer structure that several smart skins class buoyant raft micro units are made up of array format.Intelligence based on magnetic rheology elastic body building
Energy covering class buoyant raft microcellular structure is mainly made of magnetic rheology elastic body, magnetizer, coil and column etc.；Exocuticle is smooth
Thin toughness film's material, directly contacted with fluid.The smart skins class buoyant raft micro unit that will be constructed based on magnetic rheology elastic body
It is arranged, then interior exocuticle is adhered thereto, is made a kind of based on magnetorheological elastic material in the form of periodic arrangement etc.
Reducing noise and drag smart skins.The size of current that coil is flowed through by changing, changes magnetorheological body ambient magnetic field strength, then adjusts
The rigidity and damping parameter for saving magnetorheological body make it have the ability of control broadband excitation vibration, realize to skin-surface
The semi- active control of vibration is reached with adapting to the drag reduction and noise reduction that the speed of a ship or plane different in flow rate is lauched lower navigation unit by water and aircraft
The purpose of reducing noise and drag functional intellectualization.
Claims (8)
1. a kind of fluid drag-reduction noise reduction intelligent skin structure based on magnetorheological elastic material, characterized in that including endepidermis, outside
Epidermis and interlayer structure；Interlayer structure upper and lower ends are stained with endepidermis, are stained with exocuticle on the surface of endepidermis；
The interlayer structure is made of class buoyant raft micro unit；
The class buoyant raft micro unit includes magnetic rheology elastic body, magnetizer and column；The column has two up and down, left and right two
Magnetizer is connect by magnetic rheology elastic body with upper and lower two columns, is provided with coil between class buoyant raft micro unit.
2. the fluid drag-reduction noise reduction intelligent skin structure according to claim 1 based on magnetorheological elastic material, feature
It is that the magnetizer connecting portion is prism.
3. the fluid drag-reduction noise reduction intelligent skin structure according to claim 2 based on magnetorheological elastic material, feature
It is that the prism is the isosceles triangle that cross section is 90 ° or 120 ° of apex angle.
4. the fluid drag-reduction noise reduction according to any one of claims 1-3 based on magnetorheological elastic material intelligently covers
Skin structure, characterized in that the edge of the interlayer structure is additionally provided with link block.
5. the fluid drag-reduction noise reduction according to any one of claims 1-3 based on magnetorheological elastic material intelligently covers
Skin structure, characterized in that the class buoyant raft micro unit sorts at array.
6. the fluid drag-reduction noise reduction smart skins according to any one in claim 5 based on magnetorheological elastic material
Structure, characterized in that the class buoyant raft micro-cell array sequence group is combined into quadrangle or hexagon.
7. the fluid drag-reduction noise reduction according to any one of claims 1-3 based on magnetorheological elastic material intelligently covers
Skin structure, characterized in that the endepidermis or exocuticle are smooth thin toughness film's material.
8. the fluid drag-reduction noise reduction smart skins according to any one in claim 7 based on magnetorheological elastic material
Structure, characterized in that the thin-film material is polyurethane material or rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567140.1A CN109606532B (en) | 2018-12-19 | 2018-12-19 | Fluid drag reduction and noise reduction intelligent skin structure based on magnetorheological elastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567140.1A CN109606532B (en) | 2018-12-19 | 2018-12-19 | Fluid drag reduction and noise reduction intelligent skin structure based on magnetorheological elastic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109606532A true CN109606532A (en) | 2019-04-12 |
| CN109606532B CN109606532B (en) | 2021-04-30 |
Family
ID=66010141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811567140.1A Active CN109606532B (en) | 2018-12-19 | 2018-12-19 | Fluid drag reduction and noise reduction intelligent skin structure based on magnetorheological elastic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109606532B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435817A (en) * | 2019-07-19 | 2019-11-12 | 中国船舶重工集团公司第七一九研究所 | A kind of sharp oise damping means of underwater bossy body stream |
| CN110481740A (en) * | 2019-08-26 | 2019-11-22 | 哈尔滨工程大学 | Micro- buoyant raft fluid drag-reduction noise reduction covering based on waveguide mechanism |
| CN111853145A (en) * | 2020-07-22 | 2020-10-30 | 上海大学 | Lattice sandwich intelligent vibration reduction structure based on magnetoelectric rheological body |
| CN113525523A (en) * | 2021-07-22 | 2021-10-22 | 哈尔滨工程大学 | Whale fat fluid anti-drag noise-reduction skin based on flexible joint vibration-reduction unit lattice structure |
| CN113650724A (en) * | 2021-07-19 | 2021-11-16 | 哈尔滨工程大学 | Nonlinear resistance-reducing noise-reducing skin based on micro-space X-shaped mechanism array |
| CN113879453A (en) * | 2021-10-20 | 2022-01-04 | 哈尔滨工程大学 | Shield scale tile-covering type resistance-reducing noise-reducing skin based on micro Stewart mechanism |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0854006A (en) * | 1994-08-09 | 1996-02-27 | Mitsui Eng & Shipbuild Co Ltd | Underwater frictional resistance reducing surface forming method |
| JPH08268377A (en) * | 1995-03-31 | 1996-10-15 | Mitsui Eng & Shipbuild Co Ltd | Surface construction of structure in contact with liquid |
| CN2472006Y (en) * | 2001-02-28 | 2002-01-16 | 汪建晓 | Magnet rheological fluid damper for rotor system oscilation control |
| CN2842078Y (en) * | 2005-10-15 | 2006-11-29 | 中国科学技术大学 | Magnetic rheological elastomer frequency shift attenuator |
| CN101126430A (en) * | 2007-09-18 | 2008-02-20 | 重庆大学 | Parallel type vibration isolation buffer based on magneto-rheological technology |
| CN101324257A (en) * | 2008-07-11 | 2008-12-17 | 重庆大学 | Controllable vibration isolator based on magnetic current change elastic element and damping element coupled action |
| CN101513924A (en) * | 2009-04-03 | 2009-08-26 | 哈尔滨工程大学 | Magnetorheological elastomer intelligent vibration absorber used for ships |
| CN203962836U (en) * | 2014-06-27 | 2014-11-26 | 长安大学 | The compound regulating type wideband of a kind of quality-rigidity shock-absorbing means |
| CN108557043A (en) * | 2018-03-15 | 2018-09-21 | 哈尔滨工程大学 | A kind of micro- buoyant raft array covering with reducing noise and drag function |
-
2018
- 2018-12-19 CN CN201811567140.1A patent/CN109606532B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0854006A (en) * | 1994-08-09 | 1996-02-27 | Mitsui Eng & Shipbuild Co Ltd | Underwater frictional resistance reducing surface forming method |
| JPH08268377A (en) * | 1995-03-31 | 1996-10-15 | Mitsui Eng & Shipbuild Co Ltd | Surface construction of structure in contact with liquid |
| CN2472006Y (en) * | 2001-02-28 | 2002-01-16 | 汪建晓 | Magnet rheological fluid damper for rotor system oscilation control |
| CN2842078Y (en) * | 2005-10-15 | 2006-11-29 | 中国科学技术大学 | Magnetic rheological elastomer frequency shift attenuator |
| CN101126430A (en) * | 2007-09-18 | 2008-02-20 | 重庆大学 | Parallel type vibration isolation buffer based on magneto-rheological technology |
| CN101324257A (en) * | 2008-07-11 | 2008-12-17 | 重庆大学 | Controllable vibration isolator based on magnetic current change elastic element and damping element coupled action |
| CN101513924A (en) * | 2009-04-03 | 2009-08-26 | 哈尔滨工程大学 | Magnetorheological elastomer intelligent vibration absorber used for ships |
| CN203962836U (en) * | 2014-06-27 | 2014-11-26 | 长安大学 | The compound regulating type wideband of a kind of quality-rigidity shock-absorbing means |
| CN108557043A (en) * | 2018-03-15 | 2018-09-21 | 哈尔滨工程大学 | A kind of micro- buoyant raft array covering with reducing noise and drag function |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435817A (en) * | 2019-07-19 | 2019-11-12 | 中国船舶重工集团公司第七一九研究所 | A kind of sharp oise damping means of underwater bossy body stream |
| CN110481740A (en) * | 2019-08-26 | 2019-11-22 | 哈尔滨工程大学 | Micro- buoyant raft fluid drag-reduction noise reduction covering based on waveguide mechanism |
| CN110481740B (en) * | 2019-08-26 | 2022-06-21 | 哈尔滨工程大学 | Micro float raft fluid drag reduction and noise reduction skin based on waveguide mechanism |
| CN111853145A (en) * | 2020-07-22 | 2020-10-30 | 上海大学 | Lattice sandwich intelligent vibration reduction structure based on magnetoelectric rheological body |
| CN113650724A (en) * | 2021-07-19 | 2021-11-16 | 哈尔滨工程大学 | Nonlinear resistance-reducing noise-reducing skin based on micro-space X-shaped mechanism array |
| CN113525523A (en) * | 2021-07-22 | 2021-10-22 | 哈尔滨工程大学 | Whale fat fluid anti-drag noise-reduction skin based on flexible joint vibration-reduction unit lattice structure |
| CN113879453A (en) * | 2021-10-20 | 2022-01-04 | 哈尔滨工程大学 | Shield scale tile-covering type resistance-reducing noise-reducing skin based on micro Stewart mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109606532B (en) | 2021-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109606532A (en) | Fluid drag-reduction noise reduction intelligent skin structure based on magnetorheological elastic material | |
| CN108557043B (en) | Micro-buoyant raft array skin with functions of reducing drag and noise | |
| CN112644637B (en) | Unmanned underwater vehicle motion drag reduction shell | |
| CN110481740B (en) | Micro float raft fluid drag reduction and noise reduction skin based on waveguide mechanism | |
| CN109633659A (en) | Tiny type sonar array system and the device for combining unmanned boat realization underwater monitoring | |
| CN106364648A (en) | Underwater bionic propelling device with controllable rigidity | |
| CN113525523B (en) | Whale-simulated fluid anti-drag noise-reduction skin based on flexible joint vibration-reduction unit lattice structure | |
| CN107323638A (en) | A kind of bionical devil ray device | |
| CN113060265B (en) | Bionic flexible propulsion device and fluctuation control method | |
| CN110282102A (en) | The unmanned underwater gliding probe microphone of cake type | |
| CN106828842A (en) | A kind of bionical cavity film water Female Robot of Electromagnetic muscle | |
| CN113879453B (en) | Shield scale tile-covering type resistance-reducing noise-reducing skin based on micro Stewart mechanism | |
| CN116161163B (en) | Intelligent variable-rigidity flexible drag-reduction noise-reduction skin based on adjustable tensioning integral structure | |
| CN206544574U (en) | A kind of submarine pressure hull | |
| CN113844626B (en) | Sandwich structure multi-degree-of-freedom deep sea aircraft based on piezoelectric driving | |
| CN206417164U (en) | A kind of Biomimetic Fish humanoid robot | |
| CN106143789B (en) | A kind of submarine pressure hull and preparation method thereof | |
| CN108945357A (en) | A kind of software bionic fish tail | |
| CN116279967B (en) | Adjustable-impedance flexible drag-reduction noise-reduction skin based on multilayer variable-stiffness units | |
| CN205059975U (en) | Aquatic robot | |
| CN206125384U (en) | Controllable bionical advancing device under water of rigidity | |
| CN110040230A (en) | It is a kind of that wave energy is converted into the ocean vehicle that low frequency pitching realizes propulsion | |
| Santos et al. | On the limitations of two-and three-dimensional linear hydroelasticity analyses applied to a fast patrol boat | |
| Beal et al. | Unified scaling for flapping fins | |
| CN113650724B (en) | Nonlinear anti-drag noise-reduction skin based on micro-space X-shaped mechanism array |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |