CN104595418B - A kind of isolation mounting with periodic structure changed based on band gap filtering and waveform - Google Patents
A kind of isolation mounting with periodic structure changed based on band gap filtering and waveform Download PDFInfo
- Publication number
- CN104595418B CN104595418B CN201510054665.5A CN201510054665A CN104595418B CN 104595418 B CN104595418 B CN 104595418B CN 201510054665 A CN201510054665 A CN 201510054665A CN 104595418 B CN104595418 B CN 104595418B
- Authority
- CN
- China
- Prior art keywords
- vibration
- panel
- vibration isolation
- brace
- periodic structure
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/30—Mounting of propulsion plant or unit, e.g. for anti-vibration purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2234/00—Shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of isolation mounting with periodic structure, including: the panel that two parallel interval are arranged, wherein a panel is connected with the equipment installation treating vibration isolation by vibration isolator, and another panel is connected with installing pedestal by vibration isolator；Multiple montants, it is that array is arranged and is all vertically set between two panels, forms multiple vibration isolation region, and each montant in each vibration isolation region is provided with reinforcement gusset with the junction of top panel and lower panel；And multiple brace, between two reinforcements being arranged diagonal in each vibration isolation region, a brace is set, and the brace in adjacent two vibration isolation regions is symmetric relative to its total montant, it is consequently formed the vibration-proof structure in periodic arrangement, thus forms the stopband characteristic of periodic structure and realize effective vibration isolation noise abatement.Assembly of the invention both can provide enough Static stiffness and dynamic stiffness, can be effectively isolated the low frequency and narrow bandwidth line spectrum that main and auxiliary plant equipment produces and the noise radiation that wide-band vibration is transmitted and suppression is caused by vibration transmission simultaneously.
Description
Technical field
The invention belongs to vibration isolation and damping technical field, be specifically related to a kind of Buoyant Raft Shock-resistant System being applicable to boats and ships.
Background technology
Mechanical noise is the main noise source when boats and ships such as naval vessel, dredger, pleasure boat or aircraft lowsteaming.Low frequency is made an uproar
Sound higher-frequency noise transmission, apart from farther, easily become target characteristic signal, is easily perceived by the shoal of fish；For mechanical noise
Control be not only advantageous for service life and the working environment of instrument and meter, it is also possible to improve the work leisure of crewman and passenger
Environment.Along with improving constantly that comfortableness on ship requires, Control of Mechanical Noise is as improving the key technology of compartment environment, more
Get over and paid attention to by each big shipbuilding enterprise.
Mechanical noise causes mainly due to mechanical vibration, so can be reached the effect of noise reduction by vibration damping.
As vibration damping and vibration isolation platform, multistage buoyant raft vibration isolation is having very much of isolating of at present vibration to the plant equipment installed
The means of effect.Buoyant raft vibration isolation is by all of plant equipment elasticity in ship or to be rigidly mounted to a public intermediate structure
On body body, then by vibration isolator, this structure is connected to the isolation mounting formed on base construction.It is multicomputer, disturbs more
Dynamic source, the device of multidirectional vibration isolation, more more complex than common monolayer and double-layer vibration isolating device.
For the Buoyant Raft Shock-resistant System of the unit equipment on naval vessel, owing to being restricted by reasons such as quality constraints, need in little matter
Amount is lower realizes the biggest vibration decay.Current Buoyant Raft Shock-resistant System is mainly simple slab construction, and these devices do not have
Making full use of the attenuating mechanism between each structure of buoyant raft, quality and Stiffness Distribution are the most unreasonable, it is impossible to form wide band shaking
Dynamic decay.
Summary of the invention
For technical problem present in above-mentioned present technology, the present invention provides a kind of isolation mounting with periodic structure, its
Based on band gap filtering and waveform transfer principle, by the cross bar of periodic truss structure, montant, brace and periodic arrangement I-shaped
Girder steel strengthens vibration damping and vibration isolation to the stopband characteristic of the waveform conversion of vibration wave, multiple scattering and periodic structure in the structure
Effect, it is achieved the wideband band gap in relatively low-frequency range, increases the low-frequency range of isolation mounting and wide band anti-vibration performance.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is as follows:
A kind of isolation mounting with periodic structure, for realizing the vibration insulation and noise reduction to the equipment installed on boats and ships, its feature exists
In, this isolation mounting includes:
The panel that two parallel interval are arranged, wherein a panel is connected with the equipment installation treating vibration isolation by vibration isolator, another panel
It is connected with installing pedestal by vibration isolator；
Multiple montants, its be array arrange and be all vertically set between two panels, with between two panels formed support and from
And between two panels, form multiple vibration isolation region being made up of adjacent two montants in panel length and width, two panels
Between described vibration isolation region in panel length and width in array distribution, and each montant in each vibration isolation region is with upper
The junction of panel and lower panel is provided with reinforcement gusset；
And multiple brace, between two reinforcements being arranged diagonal in each described vibration isolation region, brace described in is set, and
The brace in adjacent two vibration isolation regions is symmetric relative to its total montant, so that described between two panels
Space forms in panel length and width all vibration-proof structures in periodic arrangement, thus forms the stopband of periodic structure
Characteristic and realize effective vibration isolation noise abatement.
As the improvement of the present invention, each described vibration isolation region along its length arranges a brace or arranges two braces,
Correspondingly, each described vibration isolation region arranged in the width direction arranges each described vibration isolation region and arranges two braces or setting
One brace.
As the improvement of the present invention, being additionally provided with vertically arranged riser between described two panels, it is by the cycle on steel plate and its
The reinforcement of arrangement is constituted, thus forms periodic structure.
It is welded by the I-beam of steel plate and periodic arrangement as the improvement of the present invention, described top panel or lower panel.
As the improvement of the present invention, upper and lower panel uses 6mm thickness ship plate and 25a I-steel to be welded.
The space isolation mounting of the present invention is the double-deck buoyant raft double-layer vibration isolating system improved, by device for vibration insutation by upper strata vibration isolator
Being connected with intermediate, intermediate is mainly made up of top panel, middle multiple periodic truss formula structures and lower panel, in
Mesosome is connected with naval vessel pedestal by lower floor's vibration isolator；The plurality of periodic truss formula structure is welded into one by upper and lower panel
Body, multiple periodic truss formula structures are disposed side by side on the length and width direction of described panel, on length and width direction
Formed periodically；Described upper and lower panel is to be welded by the I-beam of steel plate and periodic arrangement, and vibration is along periodic structure
When propagating, it may occur that the transmission of ripple and conversion, and form the stopband characteristic of periodic structure so that vibration obtains greatly
Decay.
In the present invention, described upper and lower panel is welded with reinforcement between each periodic structure, can increase the intensity of structure,
Can largely improve the rigidity of buoyant raft.
In the present invention, described upper and lower panel uses 6mm thickness ship plate and 25a I-steel to be welded.
In the present invention, the arrangement of described upper and lower panel I-beam presents periodically, belongs to two-phase cycle arrangement, can stop specific
The propagation in this two-dimensionally periodic structure of the vibration wave under frequency.
In the present invention, described plant equipment and intermediate structures use rigidity to install or the mode of flexible installing.Rigidity is installed
The i.e. under-chassis of plant equipment is coupled with intermediate structures by bolt, and rigidity is provided with " the quality effect beneficially improving isolation mounting
Should ", flexible installing be according to plant equipment type select vibration isolator couple with buoyant raft, beneficially equipment self subtract vibration isolation.
In the present invention, the intermediate structures of described double-layer structure, upper strata mounting platform does not cuts off, and lower floor's mounting platform is divided into
Four chambers, may be used for arranging all kinds of Aided Machine.
Knowable to the communication theory of ripple, special stopband and passband structure when elastic wave is propagated in periodic structure, can be formed.
When the frequency of elastic wave is in stopband range when, it is not allow to propagate that elasticity involves vibration.The band gap of periodic structure
Characteristic is closely related with the physical dimension of periodic unit and density of material, adjusts the physical dimension of periodic structure and selects suitably
Material parameter, can obtain different band gap properties.Utilizing this mechanism, isolation mounting is designed to along vibration by the present invention
The multidirectional periodic structure of the direction of propagation, can obtain the vibration insulation structure with wideband vibration isolating effect.The installation that plant equipment is elastic
On intermediate structures, intermediate structures is resiliently mounted on hull again, and truss structure couples the compressional wave propagated in beam, torsion
The bending wave turning ripple and two kinds of forms plays scattering process, makes propagation waveform occur each other to intersect to change, in shorter biography
After broadcasting distance, the vibrational energy of various ripples all reaches unanimity, and reaches the purpose of mean allocation vibrational energy.Meanwhile, various shake
Type ripple is roundtrip, transmission and scattering in the multichannel truss structure that I-beam is constituted, and makes the propagation distance of ripple increase, then
Utilize structural damping effect, effectively reduce the transmission to hull of the plant equipment dither.
The effectiveness in vibration suppression of truss structure vibration absorber is mainly reflected in high band, decays and inconspicuous in low-frequency range vibration, and this is main
If because longer at low-frequency range elastic wave wavelength, structural vibration has globality, does not has damping behavior, and at high band,
Wavelength is shorter, and structural vibration has locality, and elastic wave is constantly reflected between each cycle of structure and decays,
Therefore there is preferable damping behavior.In the vibrating isolation system of the present invention, two-stage coupled position is provided with vibration isolator, and vibration isolator can
Realize the vibration isolation of low-frequency range, middle vibration isolation structure and vibration isolator synergy, it is possible to achieve isolation mounting is in wider frequency section
Damping effect.
In general, by the contemplated above technical scheme of the present invention compared with prior art, have the advantages that
(1) assembly of the invention uses multiple montants to form the structure that array is arranged between two panels, and combines reinforcement
And brace forms multiple periodic damper unit, not only can realize the waveform to vibration wave conversion, multiple scattering and
The stopband characteristic of periodic structure strengthens vibration damping and vibration isolating effect, it is achieved the wideband band gap in relatively low-frequency range, increases isolation mounting
Low-frequency range and wide band anti-vibration performance, and there is the highest support stiffness.
(2) assembly of the invention two panels uses steel plate and I-steel to be welded, and wherein I-beam arrangement presents two-way week
Phase property, can stop the propagation in this two-dimensionally periodic structure of the vibration wave under characteristic frequency, it is achieved effective vibration insulation and noise reduction.
(3) isolation mounting of the present invention is applicable to the device of various major-minor mechanical equipment installations on boats and ships, both can provide foot
Enough Static stiffness and dynamic stiffness, can be effectively isolated low frequency and narrow bandwidth line spectrum and broadband that main and auxiliary plant equipment produces simultaneously
The function of the noise radiation that vibration transmission and suppression are caused by vibration transmission.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing skill
In art description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to root
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the three dimensional structure schematic diagram according to the isolation mounting constructed by the embodiment of the present invention；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the side view of Fig. 1；
Fig. 4 is the structural representation of the upper and lower panel according to the isolation mounting constructed by the embodiment of the present invention；
Fig. 5 is the seaborne machinery schematic diagram in the installation according to the isolation mounting constructed by the embodiment of the present invention；
Fig. 6 is Floating Raft System schematic diagram.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, to this
Invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.If additionally, technical characteristic involved in each embodiment of invention described below
The conflict of not constituting each other just can be mutually combined.
As Figure 1-5, according to a kind of Novel cycle changed based on band gap filtering and waveform constructed by the embodiment of the present invention
Structure space isolation mounting, for double-layer vibration isolating system: be connected with intermediate by upper strata vibration isolator by device for vibration insutation, intermediate
Mainly be made up of top panel, middle multiple periodic truss formula structures and lower panel, intermediate by lower floor's vibration isolator and
Naval vessel pedestal is connected.
Intermediate is mainly made up of top panel 1, middle multiple periodic truss formula structures and lower panel 3.At top panel 1
With vibration isolator is installed on lower panel 3, vibration isolator can be rubber shock absorber or other kinds of vibration isolator, it is simple to sets with machinery
For flexibly connecting；Can also be rigidly connected with plant equipment employing by bolt.Upper and lower panel preferably can be at vibration isolator or under-chassis
Installation place use reinforcement strengthen.Device is connected by 12 vibration isolators and pedestal, with suppression vibration further to base
The transmission of seat.
Periodic truss formula structure between upper and lower panel includes montant 2, brace 9 or brace 10 and triangle reinforcement 6, and
Periodic structure (preferably in the both direction with the plane of panel parallel) is formed in both direction.Triangle reinforcement 6
And with bolts between brace 9, it would however also be possible to employ welding, triangle reinforcement 6 can also strengthen the rigidity of structure simultaneously.
As shown in Figure 4, upper and lower panel 3 is to be welded by the I-beam of steel plate and periodic arrangement, and the present embodiment light plate is excellent
Choosing uses the ship plate of 6mm thickness, and I-steel model is 25a, so with all with steel plate compares as upper and lower panel, both
Ensure that integrally-built rigidity, alleviate the weight of structure, I-beam is disposed side by side on length and the width of described panel simultaneously
On degree direction, be upwardly formed periodically in length and width side, vibrate along periodic structure propagate time, it may occur that ripple
Transmission and conversion, and form the stopband characteristic of periodic structure so that vibration is decayed greatly.Meanwhile, at upper and lower panel
Between plate 5 be arranged vertically with upper and lower panel, form riser between upper and lower panel, riser 5 can be multiple, preferably
Also multiple in length or width can be arranged in juxtaposition, form periodic arrangement.Riser 5 is also by cycle row on steel plate and its
The reinforcement of cloth is constituted, except connecting upper and lower panel, it is ensured that outside structure rigidity, it may have some of periodic structure is special
Point, can be with damping vibration.
The plurality of periodic truss formula structure is integrally welded by upper and lower panel, and multiple periodic truss formula structures are arranged side by side in
On the length and width direction of described panel, it is upwardly formed in length and width side periodically；Described upper and lower panel is by steel
The I-beam of plate and periodic arrangement is welded, vibrate along periodic structure propagate time, it may occur that the transmission of ripple and turning
Change, and form the stopband characteristic of periodic structure so that vibration is decayed greatly；
The periodic truss structure that the present invention provides, by periodic cross bar, montant, brace and periodic arrangement steel I-beam
In the structure the stopband characteristic of the waveform conversion of vibration wave, multiple scattering and periodic structure is strengthened vibration damping and vibration isolating effect,
Realize the wideband band gap in relatively low-frequency range, increase the low-frequency range of isolation mounting and wide band anti-vibration performance.
As it is shown in figure 5, plant equipment and intermediate structures are described as a example by transformer case 7 and sea water desalinating unit 8 and Hydraulic Station 9
Connection, according to design parameter, the operating mode of the plant equipment carried, select rigidity or flexible way to enter with platform
Row connects.The intermediate structures of described double-layer structure, upper strata mounting platform does not cuts off, and lower floor's mounting platform is divided into four chambeies
Room, may be used for arranging all kinds of Aided Machine.Mode with bolts between auxiliary equipment and mounting platform when being rigidly connected,
By changing rigidity and the screw bolt pretightening force of pad during connection, it is also possible to improve vibration state, be conducive to improving vibration isolation mould
" mass effect " of block；During elastic connection, auxiliary equipment is coupled with mounting platform by vibration isolator, concrete vibration isolator quantity
Selection and arrangement mode to determine according to the profile of plant equipment and parameter.The present invention can utilize top panel and lower panel
On the one hand multiple chambers install multiple plant equipment, are conducive to improving space availability ratio, the most this many equipment, pacify more
The mutually suppression of dress mode beneficially equipment room vibration improves vibration isolating effect.
If Fig. 6 is the schematic diagram of Floating Raft System.When mechanical vibration pass to intermediate structures through vibration isolator, and vibration meeting exists
Propagating in top panel, when propagating in panel, vibration can be played resistance and bestir oneself use by reinforcement；These bending vibrations are via panel
Passing to each periodic structure with the junction of periodic truss formula structure, on the one hand the stopband characteristic of periodic structure can make certain
A little frequency range internal vibrations are decayed, and therefore will be declined greatly relative to the vibration in upper panel, lower panel
Subtract；On the other hand the cross bar of periodic truss structure, montant, brace and periodic arrangement steel I-beam are in the structure to vibration wave
Waveform conversion, the stopband characteristic of multiple scattering and periodic structure strengthen vibration damping and vibration isolating effect, it is achieved in relatively low-frequency range
Wideband band gap, increase the low-frequency range of isolation mounting and wide band anti-vibration performance.
Above-described embodiment is interpreted as being merely to illustrate the present invention rather than limiting the scope of the invention.Reading this
Invention record content after, the present invention can be made various changes or modifications by those skilled in the art, these equivalence change and
Modify and fall into the scope of the claims in the present invention equally.
Claims (2)
1. there is an isolation mounting for periodic structure, for realizing the vibration insulation and noise reduction to the equipment installed on boats and ships, it is characterised in that this isolation mounting includes:
The panel that two parallel interval are arranged, wherein a panel is connected with the equipment installation treating vibration isolation by vibration isolator, and another panel is connected with installing pedestal by vibration isolator, and described panel is welded by the I-beam of steel plate and periodic arrangement；
Multiple montants, it is that array is arranged and is all vertically set between two panels, support also with formation between two panels thus between two panels, form multiple vibration isolation region being made up of adjacent two montants in panel length and width, described vibration isolation region between two panels is in array distribution in panel length and width, and the junction of each montant in each vibration isolation region and top panel and lower panel is provided with reinforcement gusset；And
Multiple braces, between two reinforcements being arranged diagonal in each described vibration isolation region, brace described in is set, and the brace in adjacent two vibration isolation regions is symmetric relative to its total montant, so that space between described two panels forms in panel length and width all vibration-proof structures in periodic arrangement, thus form the stopband characteristic of periodic structure and realize effective vibration isolation noise abatement；
Wherein, each described vibration isolation region along its length arranges a brace or arranges two braces, and correspondingly, each described vibration isolation region arranged in the width direction arranges two braces or arranges a brace；Being additionally provided with vertically arranged riser between described two panels, it is made up of the reinforcement of cycle arrangement on steel plate and its, thus forms periodic structure.
A kind of isolation mounting with periodic structure the most according to claim 1, wherein, upper and lower panel uses 6mm thickness ship plate and 25a I-steel to be welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054665.5A CN104595418B (en) | 2015-02-02 | 2015-02-02 | A kind of isolation mounting with periodic structure changed based on band gap filtering and waveform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054665.5A CN104595418B (en) | 2015-02-02 | 2015-02-02 | A kind of isolation mounting with periodic structure changed based on band gap filtering and waveform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104595418A CN104595418A (en) | 2015-05-06 |
| CN104595418B true CN104595418B (en) | 2016-08-31 |
Family
ID=53121386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510054665.5A Active CN104595418B (en) | 2015-02-02 | 2015-02-02 | A kind of isolation mounting with periodic structure changed based on band gap filtering and waveform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104595418B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3572689A4 (en) * | 2017-01-19 | 2020-11-11 | Shanghai Marine Diesel Engine Research Institute | Vibration damping and noise reduction device and marine diesel engine propulsion power module system |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350403B (en) * | 2015-09-30 | 2017-11-10 | 同济大学 | Track plates and track plates vibration insulating system with periodic structure feature |
| CN105333058B (en) * | 2015-12-02 | 2016-08-17 | 华中科技大学 | A kind of cycle cavity type broad band low frequency gap vibration isolator and preparation method |
| CN106824737A (en) * | 2017-02-09 | 2017-06-13 | 河海大学 | The production method of the phonon crystal beam coupled vibrations band gap based on Route guiding |
| CN106840565B (en) * | 2017-02-27 | 2023-08-15 | 中国工程物理研究院总体工程研究所 | Double-vibrating table connecting structure |
| CN107323646B (en) * | 2017-06-23 | 2020-05-05 | 武汉理工大学 | Combined type carbon fiber composite material vibration isolation raft frame and preparation method thereof |
| CN108612801B (en) * | 2018-07-23 | 2020-04-07 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Vibration isolation base of imitative plant vein structure |
| CN110230659B (en) * | 2019-05-10 | 2020-04-28 | 华中科技大学 | Periodic vertical vibration isolation device |
| CN112580210A (en) * | 2020-12-22 | 2021-03-30 | 中国铁路设计集团有限公司 | Vibration isolation frequency band regulation and control design method for one-dimensional periodic cushion layer vibration reduction ballast bed |
| CN113062944B (en) * | 2021-03-29 | 2022-07-01 | 江苏科技大学 | Discontinuous rib type composite vibration reduction energy dissipater and manufacturing method thereof |
| CN113815825A (en) * | 2021-10-26 | 2021-12-21 | 中国舰船研究设计中心 | Efficient damping raft frame based on L-shaped continuation structure |
| CN118110757A (en) * | 2024-04-30 | 2024-05-31 | 中国人民解放军海军工程大学 | Vibration transmission unidirectional filtering structure for vibration isolation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH102375A (en) * | 1996-06-13 | 1998-01-06 | Suzuki Sogyo Co Ltd | Three-dimensional vibration control device |
| CN102673733A (en) * | 2012-06-07 | 2012-09-19 | 江苏科技大学 | Vibration and noise reduction device |
| CN102717885A (en) * | 2012-06-26 | 2012-10-10 | 上海交通大学 | Horizontal floating raft vibration isolation device |
-
2015
- 2015-02-02 CN CN201510054665.5A patent/CN104595418B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3572689A4 (en) * | 2017-01-19 | 2020-11-11 | Shanghai Marine Diesel Engine Research Institute | Vibration damping and noise reduction device and marine diesel engine propulsion power module system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104595418A (en) | 2015-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104595418B (en) | A kind of isolation mounting with periodic structure changed based on band gap filtering and waveform | |
| CN104044724B (en) | Boats and ships combined vibration-damping pedestal | |
| US20160053454A1 (en) | Floating breakwater | |
| RU2399548C1 (en) | Ship cabin acoustic lining | |
| CN102748423A (en) | Periodic curved beam structure floating raft based on wave mode conversion | |
| CN203996859U (en) | Boats and ships combined vibration-damping pedestal | |
| US9640166B2 (en) | Soundproof panel | |
| CN202380598U (en) | Light high-performance two-layer sound insulation structure and sound insulation board thereof | |
| CN102717885A (en) | Horizontal floating raft vibration isolation device | |
| CN102673733A (en) | Vibration and noise reduction device | |
| CN101723078B (en) | Vibration isolation mass rigid vibration isolation structure for bulkhead of ship | |
| CN104727241A (en) | Integral type multilayer micro-perforated metallic sound barrier | |
| RU2483971C2 (en) | Vibration and noise protection device for vessel power equipment | |
| CN103267084A (en) | Three-dimensional frame type buoyant raft vibration isolation device | |
| CN105927704A (en) | Circumferential direction shearing bearing type buoyant raft vibration isolating device | |
| CN201593583U (en) | Local vibration absorber for ships | |
| KR20130021055A (en) | Dynamic vibration absorber systen for low frequency sound insulation | |
| CN104776142A (en) | Tower type floating raft arrangement | |
| RU2451780C1 (en) | Pierce sound absorber for ship cabin | |
| CN102996705B (en) | Combined vibration isolation base with hollow webs | |
| CN106683658A (en) | Cascaded-structure photonic crystal | |
| CN115303413A (en) | Chain type panel vibration reduction base based on impedance mismatch principle | |
| CN113968308B (en) | Low-noise strut structure of small waterplane area catamaran | |
| CN103895808B (en) | A kind of plate vibration reducing and connecting structure | |
| CN101716991B (en) | Ship high transmission loss base structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |