CN201593583U - Local vibration absorber for ships - Google Patents
Local vibration absorber for ships Download PDFInfo
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- CN201593583U CN201593583U CN200920213190XU CN200920213190U CN201593583U CN 201593583 U CN201593583 U CN 201593583U CN 200920213190X U CN200920213190X U CN 200920213190XU CN 200920213190 U CN200920213190 U CN 200920213190U CN 201593583 U CN201593583 U CN 201593583U
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Abstract
The utility model relates to a local vibration absorber for ships, which is characterized by comprising an installation part, at least two supports arranged inside the installation part in parallel and vibration absorbing components arranged on all the supports, wherein each vibration absorbing component comprises at least one spring unit conducting matching according to vibration damping targets, at least one damping unit conducting matching according to the vibration damping targets and a quality unit arranged on the top of each vibration absorbing component and conducting matching according to the vibration damping targets. The local vibration absorber can determine the corresponding quality, rigidity, damping and installation methods according to different objects, reduce resonance amplitude greatly, and have no need to change the original structure dramatically or redesign the structure, thus lowering construction cost greatly and reducing manpower, material resources and time.
Description
Technical field
The utility model relates to a kind of vibration and noise reducing device peculiar to vessel, relates in particular to a kind of localized vibration adsorber peculiar to vessel that is applied in the boats and ships that comfort level is had relatively high expectations.
Background technique
Vibration reduction of ship noise reduction considers basically that based on total solution for the boats and ships that come into operation, the processing cost of carrying out vibration and noise reducing is very big, needs lot of manpower and material resources at present.And boats and ships that comfort level is had relatively high expectations such as yacht and passenger boat, very high for deck layer, main cabin, foyer and some partial bulkhead structural vibrations noise requirements, if vibration noise is excessive, will directly has influence on passenger's travelling comfort, and then influence shipowner's economic benefit.In case the excessive situation of vibration noise occurs,, will be a very huge engineering if administer from the source.
External localized vibration adsorber product uses on the boats and ships that yacht and passenger boat etc. is had relatively high expectations to comfort level in a large number.The more bump leveller of present domestic application is mainly used in automotive field, use seldom at ship domain, and the rigidity of bump leveller generally controls by rubber material with damping, and quality, rigidity and damping are difficult for regulating, and designs, cost of production is higher.Because the performance parameter of production technology and product is not easy to control, therefore limited its application area, be unfavorable for utilization and extention.
Summary of the invention
The utility model involves the problem of boats and ships travelling comfort at the excessive grade of deck peculiar to vessel localized vibration, and a kind of excessive localized vibration adsorber peculiar to vessel of deck peculiar to vessel localized vibration that solves is provided.This localized vibration adsorber can be determined and mates corresponding quality, rigidity, damping according to different objects, resonance amplitude is reduced significantly, and do not need original structure is carried out big transformation and even carries out structural design again, greatly reduce reforming cost, reduced human and material resources and time.
The technological scheme that the utility model is taked is, localized vibration adsorber peculiar to vessel, be characterized in, comprise assembly department, be set in parallel at least two supports in the assembly department, be arranged on each the shock absorption assembly on each support, described each shock absorption assembly comprises spring unit and at least one damping unit that mates according to the vibration damping target that at least one mates according to the vibration damping target, and a mass unit that mates according to the vibration damping target that is located at each shock absorption assembly top.
Above-mentioned localized vibration adsorber peculiar to vessel, wherein, described assembly department is made of a pair of I-shape beam or channel-section steel, and described support is fixed between two I-shape beams or the channel-section steel.
Above-mentioned localized vibration adsorber peculiar to vessel, wherein, described every group of shock absorption assembly comprises two spring units and is arranged on a damping unit between this two spring unit; Described each shock absorption assembly is arranged on separately the support with symmetrical position.
Above-mentioned localized vibration adsorber peculiar to vessel, wherein, described spring unit comprises spring, spring fixed block, fixing bolt.
Above-mentioned localized vibration adsorber peculiar to vessel, wherein, described damping unit comprises damper and fixing bolt.
Above-mentioned localized vibration adsorber peculiar to vessel, wherein, described mass unit is a mass block, is fixed on the top of described shock absorption assembly.
Because the utility model has adopted above technological scheme, comprise mass unit, spring unit and damping unit and corresponding mounting structure according to the target coupling, can determine corresponding quality, rigidity, damping and installation method according to different objects, resonance amplitude is reduced significantly.And do not need original structure is carried out big transformation and even carries out structural design again, greatly reduce reforming cost, reduced human and material resources and time.
Description of drawings
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the utility model localized vibration absorber structure peculiar to vessel figure, and wherein a is a plan view, and b is the A-A sectional view of a.
Fig. 2 is that the utility model localized vibration adsorber peculiar to vessel is used schematic representation.
Fig. 3 is the utility model localized vibration adsorber peculiar to vessel working principle schematic representation.
Embodiment
See also Fig. 1, Fig. 1 is the utility model localized vibration absorber structure peculiar to vessel figure, and wherein a is a plan view, and b is the A-A sectional view of a.The utility model localized vibration adsorber peculiar to vessel, comprise assembly department 1, be set in parallel at least two supports 2 in the assembly department, be arranged on each the shock absorption assembly 3 on each support, and a mass unit 4 according to vibration damping target coupling that is located at each shock absorption assembly top.Described assembly department is made of a pair of I-shape beam or channel-section steel or similar steel construction piece, and present embodiment is made of two I-shape beams.Present embodiment is provided with two supports 21,22, and this two stands fixed interval is between two I-shape beams.Described each shock absorption assembly 3 comprises at least one spring unit 31 and at least one damping unit 32, and every group of shock absorption assembly described in the present embodiment comprises two spring units and be arranged on a damping unit between this two spring unit; Described two groups of shock absorption assemblies are symmetricly set on separately the support.The described damping unit of present embodiment is made of damper and fixing bolt, and the damping constant of damper is mated by the designer according to the vibration damping target.Described spring unit is made of spring, spring fixed block, fixing bolt, and the rigidity of spring is carried out match settings according to the vibration damping target by the designer.Described mass unit is a mass block, and also according to vibration damping target coupling, overall fixed is at the top of described each shock absorption assembly.The utility model can be determined corresponding installation method according to different objects, and present embodiment is mounted in the bottom on the deck 100 of boats and ships.The utility model can select suitable quality, rigidity, damping to reach the purpose that reduces resonance peak according to the resonant frequency of object.
See also Fig. 2, Fig. 3, wherein, Fig. 2 is that the utility model localized vibration adsorber peculiar to vessel is used schematic representation, and Fig. 3 is the utility model localized vibration adsorber peculiar to vessel working principle schematic representation.A localized vibration adsorber A is installed at position in recurring structure resonance, to change its original structural vibration.At resonant frequency F place, original structure can be similar to and be reduced to a simple substance amount vibration system, and as shown in Figure 2, major parameter is M, K, C.After the utility model localized vibration adsorber m, k, c are installed, original system has become two quality systems, comprise two rank system frequencies, and because the variation of system stiffness, quality, two rank natural frequency f1, f2 are offset to the low-and high-frequency both direction respectively at original system resonant frequency place, thereby avoid energizing frequency f, reach the purpose that reduces the resonance amplitude, its working principle as shown in Figure 3.See also Fig. 3.According to vibrational theory, after the utility model localized vibration adsorber peculiar to vessel is installed, there is certain phase relationship in the vibration of the vibration of original structure and the utility model localized vibration adsorber peculiar to vessel, under a certain phase place (during the cophasing vibration), the spring of the utility model localized vibration adsorber peculiar to vessel is inoperative, and this moment, the quality of adsorber increased the quality of original structure, thereby had reduced the first natural frequency of system, avoid energizing frequency, and widened the off-resonance district.In like manner, when original structure and the vibration of the utility model localized vibration adsorber peculiar to vessel different phase, the spring of the utility model localized vibration adsorber peculiar to vessel has increased the rigidity of whole system, thereby the second order natural frequency of system is raise, avoid energizing frequency, also widened system off-resonance district simultaneously.
Simple in structure, the easy accessibility of the utility model, the localized vibration that causes for the solution single-frequency has very significantly effectiveness in vibration suppression.Be applicable to the boats and ships that yacht and passenger boat etc. are had relatively high expectations to comfort level, can effectively suppress boats and ships upper deck layer, main cabin, foyer and some partial bulkhead structural vibrations and noise, make travelling comfort have more greatly and improve.
The utility model can also be applied to other because single-frequency causes the occasion that vibration is excessive, particularly for the large scale structure of rotating machinery as power, has a extensive future.
Claims (6)
1. localized vibration adsorber peculiar to vessel, it is characterized in that, comprise assembly department, be set in parallel at least two supports in the assembly department, be arranged on each the shock absorption assembly on each support, described each shock absorption assembly comprises spring unit and at least one damping unit that mates according to the vibration damping target that at least one mates according to the vibration damping target, and a mass unit that mates according to the vibration damping target that is located at each shock absorption assembly top.
2. localized vibration adsorber peculiar to vessel according to claim 1 is characterized in that described assembly department is made of a pair of I-shape beam or channel-section steel, and described support is fixed between two I-shape beams or the channel-section steel.
3. localized vibration adsorber peculiar to vessel according to claim 1 and 2 is characterized in that, described every group of shock absorption assembly comprises two spring units and be arranged on a damping unit between this two spring unit; Described each shock absorption assembly is arranged on separately the support with symmetrical position.
4. localized vibration adsorber peculiar to vessel according to claim 3 is characterized in that described spring unit comprises spring, spring fixed block, fixing bolt.
5. localized vibration adsorber peculiar to vessel according to claim 3 is characterized in that described damping unit comprises damper and fixing bolt.
6. localized vibration adsorber peculiar to vessel according to claim 1 is characterized in that described mass unit is a mass block, is fixed on the top of described shock absorption assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920213190XU CN201593583U (en) | 2009-12-16 | 2009-12-16 | Local vibration absorber for ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920213190XU CN201593583U (en) | 2009-12-16 | 2009-12-16 | Local vibration absorber for ships |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593583U true CN201593583U (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920213190XU Expired - Lifetime CN201593583U (en) | 2009-12-16 | 2009-12-16 | Local vibration absorber for ships |
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| CN (1) | CN201593583U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276664A (en) * | 2011-04-27 | 2013-09-04 | 清华大学 | Piezoelectric energy-harvesting tuned mass damper |
| CN105712190A (en) * | 2014-12-05 | 2016-06-29 | 无锡锡山安达防爆电气设备有限公司 | Main girder structure for anti-explosion crane |
| CN105731253A (en) * | 2014-12-12 | 2016-07-06 | 无锡锡山安达防爆电气设备有限公司 | Main beam structure of heavy explosionproof crane |
| CN105731251A (en) * | 2014-12-12 | 2016-07-06 | 无锡锡山安达防爆电气设备有限公司 | Inner tension spring reinforcement type girder of explosion-proof crane |
| CN105731252A (en) * | 2014-12-12 | 2016-07-06 | 无锡锡山安达防爆电气设备有限公司 | Explosionproof crane main beam based on X-ray induction image detection |
-
2009
- 2009-12-16 CN CN200920213190XU patent/CN201593583U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276664A (en) * | 2011-04-27 | 2013-09-04 | 清华大学 | Piezoelectric energy-harvesting tuned mass damper |
| CN105712190A (en) * | 2014-12-05 | 2016-06-29 | 无锡锡山安达防爆电气设备有限公司 | Main girder structure for anti-explosion crane |
| CN105731253A (en) * | 2014-12-12 | 2016-07-06 | 无锡锡山安达防爆电气设备有限公司 | Main beam structure of heavy explosionproof crane |
| CN105731251A (en) * | 2014-12-12 | 2016-07-06 | 无锡锡山安达防爆电气设备有限公司 | Inner tension spring reinforcement type girder of explosion-proof crane |
| CN105731252A (en) * | 2014-12-12 | 2016-07-06 | 无锡锡山安达防爆电气设备有限公司 | Explosionproof crane main beam based on X-ray induction image detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151112 Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Building 1 room 629 Patentee after: Shanghai shine Heavy Industry Co., Ltd. Address before: 201108 Shanghai City Huaning Road No. 3111 Patentee before: The 711th Research Institute of China Shipbuilding Industrial Corporation(CSIC) |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170704 Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 building 4 Patentee after: SHANGHAI QIYAO SYSTEM ENGINEERING CO., LTD. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Building 1 room 629 Patentee before: Shanghai shine Heavy Industry Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100929 |
|
| CX01 | Expiry of patent term |