CN109229278A - A kind of vibration reduction of ship structure and ship - Google Patents
A kind of vibration reduction of ship structure and ship Download PDFInfo
- Publication number
- CN109229278A CN109229278A CN201811131534.2A CN201811131534A CN109229278A CN 109229278 A CN109229278 A CN 109229278A CN 201811131534 A CN201811131534 A CN 201811131534A CN 109229278 A CN109229278 A CN 109229278A
- Authority
- CN
- China
- Prior art keywords
- ship
- cabin
- outside plate
- vibration
- vibration damping
- 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
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
- B63B17/0081—Vibration isolation or damping elements or arrangements, e.g. elastic support of deck-houses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B11/00—Interior subdivision of hulls
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to shipbuilding technical fields, specifically disclose a kind of vibration reduction of ship structure and ship.Vibration reduction of ship structure includes the cabin for allowing seawater to enter above propeller, and the cabin bottom is provided with outside plate, several vibration damping holes are provided on the outside plate.The setting in vibration damping hole is so that the area of outside plate reduces, so that the exciting force acted on outside plate reduces, and then is reduced by the exciting force that outside plate is transmitted to other regions of ship, to reduce the vibration of entire ship；Seawater can be entered in cabin by vibration damping hole, and exciting force is transmitted in the indoor seawater in cabin by outside plate and vibration damping hole, and the indoor seawater in cabin plays the role of absorbing, further decrease the exciting force for being transmitted to other regions of ship.Show that the exciting force overwhelming majority that propeller generates acts on outside plate by analyzing, by cutting off and reducing the exciting force acted on outside plate, to greatly reduce the exciting force for being transmitted to the other regions of ship.
Description
Technical field
The present invention relates to shipbuilding technical field more particularly to a kind of vibration reduction of ship structure and ships.
Background technique
In modern ships, due to marine engine manufacture progress, keep host vibration exciting force smaller and smaller, and propeller at
For the largest source of Ship Vibration exciting force, and cause ship hull vibration exceeded, influences the comfort that ship uses.
In the prior art, in order to reduce the exciting force that propeller generates, combined vibration-damping structure is installed in ship tail portion, it is compound
Vibration-proof structure includes floor, platform, aftbulkhead and the scuttle bulkhead set on hull tail undercarriage upper area, is set on floor
There are multiple vibration isolation mass, to hinder the transmitting of vibrational energy, floor and platform form thin plate resonance sound-absorbing device, floor,
Platform, aftbulkhead and scuttle bulkhead form closed cavity structure, and damping unit and steel ball, resistance vibration matter are equipped in closed cavity structure
Amount, damping unit and steel ball three collectively form impact damper system device.Combined vibration-damping structure in the prior art is although play
The effect of vibration damping, but need that vibration isolation mass, damping unit and steel ball are in addition arranged on ship, so that vibration-proof structure is complicated.
Summary of the invention
It is an object of the present invention to provide a kind of vibration reduction of ship structures, and it is low to reduce processing cost to simplify structure.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of vibration reduction of ship structure, including the cabin for allowing seawater to enter above propeller, the cabin bottom is provided with
Outside plate is provided with several vibration damping holes on the outside plate.
Preferably, the vibration damping pore size distribution is in a rectangular region, and the rectangle is located at the propeller
Surface.
Preferably, the rectangular side length is greater than or equal to propeller when the rectangular four edges are equal
Diameter；When the adjacent both sides of the rectangle are unequal, the rectangular bond length is greater than or equal to propeller
Diameter.
Preferably, the area in the vibration damping hole is less than or equal to 0.5m2。
Preferably, the vibration damping hole is elliptical aperture.
Preferably, the long axis of the elliptical aperture extends along the width direction of the ship.
Preferably, the spacing of the adjacent elliptical aperture is greater than or equal to the major axis dimension of the elliptical aperture.
Preferably, be provided with partition in the cabin, the cabin includes the first cabin and the second cabin, described first
Cabin is connected to the vibration damping hole.
Preferably, the vibration damping hole is circular hole, square hole and/or elliptical aperture.
It is another object of the present invention to provide a kind of ships, and it is low to reduce processing cost to simplify vibration reduction of ship structure.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of ship, including above-mentioned vibration reduction of ship structure.
Beneficial effects of the present invention: the setting in vibration damping hole is so that the area of outside plate reduces, so that acting on outside plate
Exciting force reduce, and then by outside plate be transmitted to other regions of ship exciting force reduce, to reduce the vibration of entire ship；Sea
Water can be entered in cabin by vibration damping hole, and exciting force is transmitted in the indoor seawater in cabin by outside plate and vibration damping hole, and cabin is indoor
Seawater plays the role of absorbing, further decreases the exciting force for being transmitted to other regions of ship.
Show that the exciting force overwhelming majority that propeller generates acts on outside plate by analyzing, by cutting off and reduction acts on
Exciting force on outside plate, to greatly reduce the exciting force for being transmitted to the other regions of ship.
Since the design of cabin structure original on ship will not influence the navigation of ship, the present invention seawater enters
Using this design principle in cabin, vibration damping hole is directly opened up on the outside plate in cabin i.e. can reach the purpose of vibration damping, structure letter
Single, processing cost is low, influences on the hydrodynamic performance of propeller small.
Detailed description of the invention
Fig. 1 is the main view of vibration reduction of ship structure provided in an embodiment of the present invention；
Fig. 2 is the top view of vibration reduction of ship structure provided in an embodiment of the present invention.
In figure:
1, cabin；11, outside plate；12, vibration damping hole；2, propeller；3, rudder for ship.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.It is understood that
It is that specific embodiment described herein is used only for explaining the present invention rather than limiting the invention.It further needs exist for illustrating
, only the parts related to the present invention are shown for ease of description, in attached drawing and it is not all.
A kind of vibration reduction of ship structure is present embodiments provided, in the vibration damping of ship, but not limited to this, to simplify ship
It is low to reduce processing cost for vibration-proof structure.
As depicted in figs. 1 and 2, vibration reduction of ship structure provided in this embodiment includes allowing seawater to enter above propeller 2
Cabin 1 and several vibration damping holes 12,1 bottom of cabin is provided with outside plate 11, and several vibration damping holes 12 are opened on outside plate 11.
The setting in vibration damping hole 12 is so that the area of outside plate 11 reduces, so that the exciting force summation acted on outside plate 11 subtracts
It is small, and then reduced by the exciting force that outside plate 11 is transmitted to other regions of ship, to reduce the vibration of ship；Seawater can be by subtracting
Vibration hole 12 enters in cabin 1, and exciting force is transmitted to the sea in the seawater in cabin 1, in cabin 1 by outside plate 11 and vibration damping hole 12
Water plays the role of absorbing, further decreases the exciting force for being transmitted to other regions of ship.
It is obtained by sunykatuib analysis, on the exciting force overwhelming majority effect outside plate 11 that propeller 2 generates, therefore, by cutting
Disconnected and reduction acts on the exciting force on outside plate 11, to greatly reduce the exciting force for being transmitted to the other regions of ship.
Since the design of 1 structure of cabin original on ship will not influence the navigation of ship, this reality seawater enters
This design principle that example utilizes cabin 1 is applied, directly opening up vibration damping hole 12 i.e. on the outside plate 11 in cabin 1 can reach the mesh of vibration damping
, structure is simple, and processing cost is low, influences on the hydrodynamic performance of propeller 2 small.
In order to make cabin 1 have emergency function, and partially the former cabin 1 of reservation is arranged in cabin 1 not into the state of seawater
Cabin 1 is separated into the first cabin and the second cabin by partition, partition, and the first cabin is connected to vibration damping hole 12.First cabin and
Two cabins can successively arrange along the length direction of ship, can also successively arrange along the vertical direction, as long as the energy on outside plate 11
Enough open up vibration damping hole 12.
It is obtained by sunykatuib analysis, before the region that the exciting force being distributed on outside plate 11 is mainly distributed is rudder for ship 3, spiral
The surface of paddle 2, area are about using 2 diameter of propeller as in the region of the square size of side length.
Therefore, in the present embodiment, reduce the exciting force and as small as possible subtract that transmitting is outside plate 11 in order to as much as possible
The influence of the intensity of small outside plate 11, vibration damping hole 12 are distributed in a rectangular region, and rectangle be located at propeller 2 just on
Side.Vibration damping hole 12 is then ordered in rectangular region.
It is full since most exciting forces that propeller 2 generates pass through other regions that outside plate 11 passes to ship
The comfort that sufficient ship hull vibration standard and ship use, when vibration damping hole 12 is distributed in the equal rectangular region of a four edges
When, rectangular side length is preferably greater than or equal to the diameter of propeller 2, when vibration damping hole 12 is distributed in an adjacent both sides not phase
Deng rectangular region in when, rectangular bond length be greater than or equal to propeller 2 diameter.
The shape in vibration damping hole 12 can for circular hole, square hole and elliptical aperture it is one such or two kinds in any one
Combining form, or simultaneously include the hole of above-mentioned three kinds of forms.In the present embodiment, vibration damping hole 12 is preferably elliptical aperture, elliptical aperture
Long axis extends along the width direction of ship.Outside plate 11 is the curved slab being bent outwardly, and the vibration damping hole 12 for opening up this kind of form is convenient for
Staff's operation, and stress will not occur at the place in vibration damping hole 12 and concentrate.
In order to guarantee the intensity of outside plate 11, the area in vibration damping hole 12 is less than or equal to 0.5m2, the spacing of adjacent elliptical aperture
More than or equal to the major axis dimension of elliptical aperture.
The present embodiment additionally provides a kind of ship, is made including above-mentioned vibration reduction of ship structure by the ship shock-damping structure
The oscillation intensity for obtaining ship complies with standard, and the processing cost of not too big increase ship.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of vibration reduction of ship structure, including the cabin (1) for allowing seawater to enter above propeller (2), cabin (1) bottom
It is provided with outside plate (11), which is characterized in that several vibration damping holes (12) are provided on the outside plate (11).
2. vibration reduction of ship structure according to claim 1, which is characterized in that the vibration damping hole (12) is distributed in a rectangle
In region, and the rectangle is located at the surface of the propeller (2).
3. vibration reduction of ship structure according to claim 2, which is characterized in that when the rectangular four edges are equal,
The rectangular side length is greater than or equal to the diameter of propeller (2)；It is described when the adjacent both sides of the rectangle are unequal
Rectangular bond length is greater than or equal to the diameter of propeller (2).
4. vibration reduction of ship structure according to claim 1, which is characterized in that the area of the vibration damping hole (12) is less than or waits
In 0.5m2。
5. vibration reduction of ship structure according to claim 4, which is characterized in that the vibration damping hole (12) is elliptical aperture.
6. vibration reduction of ship structure according to claim 5, which is characterized in that the long axis of the elliptical aperture is along the ship
Width direction extends.
7. vibration reduction of ship structure according to claim 5, which is characterized in that the spacing of the adjacent elliptical aperture be greater than or
Equal to the major axis dimension of the elliptical aperture.
8. vibration reduction of ship structure according to claim 1, which is characterized in that it is provided with partition in the cabin (1), it is described
Cabin (1) includes the first cabin and the second cabin, and first cabin is connected to the vibration damping hole (12).
9. vibration reduction of ship structure according to claim 1, which is characterized in that the vibration damping hole (12) is circular hole, square hole
And/or elliptical aperture.
10. a kind of ship, which is characterized in that including vibration reduction of ship structure described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131534.2A CN109229278B (en) | 2018-09-27 | 2018-09-27 | Ship vibration reduction structure and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131534.2A CN109229278B (en) | 2018-09-27 | 2018-09-27 | Ship vibration reduction structure and ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109229278A true CN109229278A (en) | 2019-01-18 |
| CN109229278B CN109229278B (en) | 2021-03-05 |
Family
ID=65057612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811131534.2A Active CN109229278B (en) | 2018-09-27 | 2018-09-27 | Ship vibration reduction structure and ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109229278B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113232820A (en) * | 2021-05-08 | 2021-08-10 | 舟山中远海运重工有限公司 | Vibration damper of marine main engine and manufacturing method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6239394A (en) * | 1985-08-16 | 1987-02-20 | Ishikawajima Harima Heavy Ind Co Ltd | Stern flow uniformizing moving fin device |
| CN1545461A (en) * | 2001-07-20 | 2004-11-10 | ��ά������ŵ�ָ�������˾ | Reduction of propeller-induced pressure fluctuations by introduction of air |
| JP2006176068A (en) * | 2004-12-24 | 2006-07-06 | Shin Kurushima Dockyard Co Ltd | Pitching reduction device for vessel |
| CN101190707A (en) * | 2006-12-01 | 2008-06-04 | 尹学军 | Boat hull surface buffering shock-absorbing device |
| KR20090072242A (en) * | 2007-12-28 | 2009-07-02 | 삼성중공업 주식회사 | Multi flow control appendages for reduction of exciting force induced by propeller |
| CN103842246A (en) * | 2011-10-07 | 2014-06-04 | 三星重工业株式会社 | Excitation force reducing type ship |
| KR20160050293A (en) * | 2014-10-29 | 2016-05-11 | 에스티엑스조선해양 주식회사 | Device for absorbing fluctuation pressure |
| CN205273791U (en) * | 2015-11-27 | 2016-06-01 | 武汉理工大学 | Be applied to compound damping structure of full frequency domain of boats and ships afterbody |
| CN106458307A (en) * | 2014-05-02 | 2017-02-22 | 三星重工业株式会社 | Ship for reducing propeller cavitation-induced excitation force |
| CN207257944U (en) * | 2017-08-18 | 2018-04-20 | 象山博生电子科技有限公司 | Propeller for vessels protective device |
| CN109018193A (en) * | 2018-07-16 | 2018-12-18 | 江苏科技大学 | One kind being used for ship's space noise-and-vibration-reduction composite structural member |
-
2018
- 2018-09-27 CN CN201811131534.2A patent/CN109229278B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6239394A (en) * | 1985-08-16 | 1987-02-20 | Ishikawajima Harima Heavy Ind Co Ltd | Stern flow uniformizing moving fin device |
| CN1545461A (en) * | 2001-07-20 | 2004-11-10 | ��ά������ŵ�ָ�������˾ | Reduction of propeller-induced pressure fluctuations by introduction of air |
| JP2006176068A (en) * | 2004-12-24 | 2006-07-06 | Shin Kurushima Dockyard Co Ltd | Pitching reduction device for vessel |
| CN101190707A (en) * | 2006-12-01 | 2008-06-04 | 尹学军 | Boat hull surface buffering shock-absorbing device |
| KR20090072242A (en) * | 2007-12-28 | 2009-07-02 | 삼성중공업 주식회사 | Multi flow control appendages for reduction of exciting force induced by propeller |
| CN103842246A (en) * | 2011-10-07 | 2014-06-04 | 三星重工业株式会社 | Excitation force reducing type ship |
| CN106458307A (en) * | 2014-05-02 | 2017-02-22 | 三星重工业株式会社 | Ship for reducing propeller cavitation-induced excitation force |
| KR20160050293A (en) * | 2014-10-29 | 2016-05-11 | 에스티엑스조선해양 주식회사 | Device for absorbing fluctuation pressure |
| CN205273791U (en) * | 2015-11-27 | 2016-06-01 | 武汉理工大学 | Be applied to compound damping structure of full frequency domain of boats and ships afterbody |
| CN207257944U (en) * | 2017-08-18 | 2018-04-20 | 象山博生电子科技有限公司 | Propeller for vessels protective device |
| CN109018193A (en) * | 2018-07-16 | 2018-12-18 | 江苏科技大学 | One kind being used for ship's space noise-and-vibration-reduction composite structural member |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113232820A (en) * | 2021-05-08 | 2021-08-10 | 舟山中远海运重工有限公司 | Vibration damper of marine main engine and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109229278B (en) | 2021-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2341514B1 (en) | STRUCTURAL CONFIGURATION FOR THE ASSEMBLY OF AN ENGINE ON THE STRUCTURE OF AN AIRCRAFT. | |
| CN102717885A (en) | Horizontal floating raft vibration isolation device | |
| Spence et al. | Requirements for reducing underwater noise from ships | |
| WO2013141245A1 (en) | Marine vessel | |
| CN105365998A (en) | Hull structure with underwater appendage | |
| CN109229278A (en) | A kind of vibration reduction of ship structure and ship | |
| JPS6351915B2 (en) | ||
| CN107787286B (en) | Stern extension for ship | |
| KR101259718B1 (en) | Drillship with combining form of moonpool structure considering additional resistance control | |
| CN106382329A (en) | Combined type high-precision reset vibration isolation platform device | |
| KR20130066019A (en) | Flowing reduction apparatus of moon-pool structures of drill ship | |
| JP2004268908A (en) | Cabin deck layout and layout method in large-sized passenger ship | |
| KR20210155496A (en) | Boat | |
| US9908589B1 (en) | Hull shape for improved powering and seakeeping | |
| KR20130056722A (en) | Current-control-type vibration decrease structure of vessels | |
| CN205327385U (en) | Device of making an uproar falls in ship engine | |
| JPH0313745Y2 (en) | ||
| RU2177425C1 (en) | Hydrofoil trimaran | |
| Collier | Ship and platform noise, propeller noise | |
| CN115465435A (en) | Low-noise layout scheme for stern power cabin section of water surface ship | |
| JP7022970B1 (en) | Ship | |
| JPH0474233B2 (en) | ||
| JP7391543B2 (en) | Ships and ship design methods | |
| KR20230113057A (en) | Deck house of ship and ship having the same | |
| KR101896784B1 (en) | Platform structure for Submarine double resilient mount |
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 |