KR20120022124A - Dynamic vibration absorber for pump using rubber mount - Google Patents
Dynamic vibration absorber for pump using rubber mount Download PDFInfo
- Publication number
- KR20120022124A KR20120022124A KR1020100085301A KR20100085301A KR20120022124A KR 20120022124 A KR20120022124 A KR 20120022124A KR 1020100085301 A KR1020100085301 A KR 1020100085301A KR 20100085301 A KR20100085301 A KR 20100085301A KR 20120022124 A KR20120022124 A KR 20120022124A
- Authority
- KR
- South Korea
- Prior art keywords
- pump
- elastic mount
- mount
- mass
- copper reducer
- Prior art date
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 9
- 239000005060 rubber Substances 0.000 title claims abstract description 7
- 239000006096 absorbing agent Substances 0.000 title 1
- 239000003190 viscoelastic substance Substances 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 229910052802 copper Inorganic materials 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 244000043261 Hevea brasiliensis Species 0.000 claims description 2
- 229920006397 acrylic thermoplastic Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 125000003700 epoxy group Chemical group 0.000 claims description 2
- 229920003052 natural elastomer Polymers 0.000 claims description 2
- 229920001194 natural rubber Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920003051 synthetic elastomer Polymers 0.000 claims description 2
- 239000005061 synthetic rubber Substances 0.000 claims description 2
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 claims description 2
- 150000003673 urethanes Chemical class 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims 1
- 239000002861 polymer material Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2210/00—Working fluids
- F05D2210/10—Kind or type
- F05D2210/11—Kind or type liquid, i.e. incompressible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/501—Elasticity
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vibration Prevention Devices (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
본 발명은 탄성마운트를 이용한 펌프용 동흡진기에 관한 것으로, 수직형 펌프의 상부에 탄성마운트에 의해 질량체를 설치하여, 수직형 펌프의 공진에 의한 진동을 감쇠시킬 수 있는 탄성마운트를 이용한 펌프용 동흡진기에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump copper reducer using an elastic mount, wherein a mass body is installed on an upper portion of a vertical pump by an elastic mount, and the copper mount for the pump using an elastic mount capable of attenuating vibration caused by the resonance of the vertical pump. It relates to a reducer.
일반적으로 선박이 운행 중에 있을 때, 주기관, 프로펠러, 프로펠러 축등의 작동으로 인하여 선체에는 소음과 진동이 발생한다. 또한 선박의 갑판의 공진에 의하여 진동이 발생하기도 한다. 이와 같은 선체의 진동은 선박의 수명을 단축시키고, 심할 경우 선체 파손을 일으키기도 한다.In general, when the ship is in operation, noise and vibration are generated in the hull due to the operation of the main engine, propeller, propeller shaft, etc. In addition, vibration may occur due to resonance of the deck of the ship. Such vibration of the hull shortens the life of the ship and, in severe cases, may cause hull breakage.
특히 수직형 펌프의 경우 정격 운전 주파수와 펌프의 고유 진동수가 만나면 공진으로 인한 진동 문제 발생한다. Especially for vertical pumps, vibration problems due to resonance occur when the rated operating frequency meets the natural frequency of the pump.
이와 같은 진동을 줄이기 위하여 여러가지 흡진 장치가 사용되고 있다. 이들 흡진 장치는 흡진 장치가 설치되는 구조물의 진동을 억제하기 위하여 진동자를 구비한다. 이와 같은 진동자는 스프링에 의하여 흡진 장치 내에 탄성적으로 지지된다. 이에 따라, 구조물이 진동하면, 구조물의 진동 에너지가 흡진장치의 진동자에 전달되어 진동자가 흡진함으로써 진동이 감쇠되도록 형성된다.Various reduction apparatuses are used to reduce such vibrations. These dust reduction devices are provided with a vibrator in order to suppress the vibration of the structure in which the dust reduction device is installed. Such a vibrator is elastically supported in the suction device by a spring. Accordingly, when the structure vibrates, the vibration energy of the structure is transmitted to the vibrator of the reducer so that the vibration is attenuated by the vibrator absorbing.
그러나, 이미 제작/조립이 완료된 펌프에서 공진에 의한 진동이 발생할 경우 구조 변경이 쉽지 않은 경우가 있으며 설계 단계에서라도 사소한 구조 변경으로는 원하는 공진 회피 효과를 얻기 어려운 경우가 있다. However, when vibration due to resonance occurs in a pump that has already been manufactured / assembled, structural change may not be easy, and even minor design changes may make it difficult to obtain a desired resonance avoidance effect even in the design stage.
이런 경우 동흡진기를 이용한 진동 저감 방법이 유용하다. 즉 질량과 강성을 조정하여 공진 주파수와 동일한 고유 진동수로 조정된 동흡진기를 펌프에 부착함으로써 펌프의 구조 변경을 최소화 하면서 우수한 진동 저감 효과를 얻을 수 있다.
In this case, a vibration reduction method using a copper reducer is useful. In other words, by adjusting the mass and stiffness, the vibration reducer adjusted to the natural frequency equal to the resonant frequency is attached to the pump, thereby minimizing the structure change of the pump and obtaining an excellent vibration reduction effect.
본 발명은 상기와 같은 문제점을 해소하기 위한 것으로, 그 목적은 펌프의 상단에 질량체를 샌드위치형 탄성마운트에 의해 설치하여, 강성과 감쇠를 구현하도록 한 탄성마운트를 이용한 펌프용 동흡진기를 제공하는 것이다. The present invention is to solve the above problems, an object of the present invention is to provide a pump-type copper reducer using an elastic mount to implement a rigidity and damping by installing a mass on the top of the pump by a sandwich type elastic mount. .
본 발명의 또다른 목적은 샌드위치형 탄성마운트의 고무 강성과 동흡진기 질량 조절에 의해 기 제작된 수직펌프의 공진주파수 튜닝을 가능하도록 하여, 구조적인 변화없이 쉽게 조절이 가능한 탄성마운트를 이용한 펌프용 동흡진기를 제공하는 것이다. Another object of the present invention is to enable the tuning of the resonant frequency of the vertical pump manufactured by the rubber stiffness of the sandwich type elastic mount and the mass of the copper reducer, so that the copper mount for the pump using the elastic mount can be easily adjusted without structural change. It is to provide an reducer.
본 발명의 또다른 목적은 구조가 간단하여 제작 및 설치시공이 용이한 탄성마운트를 이용한 펌프용 동흡진기를 제공하는 것이다.
Still another object of the present invention is to provide a pump-type copper reducer using an elastic mount that is simple in structure and easy to manufacture and install.
본 발명은 펌프의 상부에 동흡진기를 설치하되, 상기 동흡진기는 펌프의 상부에 볼트조립되고 점탄성 물질이 중간에 삽입된 샌드위치 패널형 탄성마운트와; 상기 패널형 탄성마운트 상부에 고정설치되는 질량체를 포함하도록 되어 있다.
The present invention is to install a copper reducer in the upper portion of the pump, the copper reducer is a sandwich panel type elastic mount bolted to the upper portion of the pump and the viscoelastic material is inserted in the middle; It is intended to include a mass fixed to the upper portion of the panel-shaped elastic mount.
이와 같이 본 발명은 수직펌프의 상부에 샌드위치형 탄성마운트에 의해 질량체를 설치하여, 수직형 펌프의 공진으로 인한 진동을 감쇠시키는 효과가 있다. As described above, the present invention has a mass body installed by the sandwich type elastic mount on the upper portion of the vertical pump, thereby reducing the vibration caused by the resonance of the vertical pump.
또한, 본 발명은 탄성마운트의 고무강성과 동흡진기 질량의 조절에 의해 수직형 펌프의 공진 주파수 튜닝이 가능하므로, 기 설치된 수직형 펌프에도 용이하게 적용할 수 있다.In addition, the present invention can be tuned to the resonant frequency tuning of the vertical pump by adjusting the rubber stiffness of the elastic mount and the dynamic reducer mass, it can be easily applied to the vertical pump installed.
또한, 본 발명은 구조가 간단하여, 현장 설치 시 설치/제작 비용 및 작업공수를 절약할 수 있다는 장점을 가진 유용한 발명으로 산업상 그 이용이 크게 기대되는 등 매우 큰 효과가 있다.
In addition, the present invention has a very large effect, such as a simple structure, a useful invention having the advantage of saving the installation / production cost and labor during installation in the field, the industrial use is greatly expected.
도 1 은 본 발명에 따른 구성을 보인 예시도
도 2 는 본 발명의 설치상태를 보인 예시도1 is an illustration showing a configuration according to the present invention;
2 is an exemplary view showing an installation state of the present invention
도 1 은 본 발명에 따른 구성을 보인 예시도를, 도 2 는 본 발명의 설치상태를 보인 예시도를 도시한 것으로, 본 발명은 수직형 펌프의 상부에 동흡진기(40)를 설치하되, 1 is an exemplary view showing a configuration according to the present invention, Figure 2 is an exemplary view showing an installation state of the present invention, the present invention is installed a
상기 동흡진기(40)는 수직형 펌프(30)의 상부(31)에 용접 또는 볼트조립되고 점탄성 물질이 중간에 삽입된 샌드위치 패널형 탄성마운트(20)와;The
상기 탄성마운트(20) 상부에 고정설치되는 질량체(10)를 포함하도록 되어 있다. It is intended to include a
상기 탄성마운트(20)는 샌드위치 패널(panel) 타입으로 이루어져 있으며, 상하부에 위치하는 두개의 철판(21,22) 사이에 점탄성 물질(23)이 부착된 샌드위치 타입으로 이루어져 있다. The
상기 점탄성 물질은 강성 역할과 댐핑 역할을 동시에 하여 동흡진기의 강성을 결정하는 동시에 동흡진기 자체의 진동 값을 저감시키는 역할도 한다. The viscoelastic material plays a role of stiffness and damping at the same time to determine the rigidity of the copper reducer and also to reduce the vibration value of the copper reducer itself.
점탄성 물질은 압축과 인장의 거동을 하면서 에너지 소산으로 진동 진폭을 낮추는 역할도 하는 물질로서 중합체 물질(polymeric materials)인 plastic, rubber, acrylics(아크릴 수지), silicones, vinyls, adhesives(점착성 물질), urethanes, epoxies, elastomers(탄성 중합체 : 천연 고무 또는 합성 고무) 등을 사용할 수 있다.
Viscoelastic material is a material that reduces vibration amplitude by dissipation of energy while compressing and tensioning. Polymeric materials such as plastic, rubber, acrylics, silicones, vinyls, adhesives and urethanes , epoxies, elastomers (natural rubber or synthetic rubber) can be used.
상기 질량체(10)는 동흡진기의 질량 역할을 하는 것으로, 이러한 질량체는 다수개의 샌드위치 패널(panel)형 탄성마운트에 의해 지지된다.
The
상기와 같은 탄성마운트(20)는 수직형 펌프 상부(31) 또는 질량체(10)에 용접되어 조립되거나, 탭가공후 볼트에 의해 일체로 조립된다.
The
상기와 같이 이루어진 본 발명은 샌드위치형 탄성마운트의 고무강성과 동흡진기 질량을 조절함으로써, 수직형 펌프에서 발생하는 임의의 주파수와 동일한 주파수로 조절하여 전체 시스템이 공진을 회피할 수 있다.
The present invention made as described above by adjusting the rubber stiffness and the mass of the copper reducer of the sandwich type elastic mount, by adjusting to a frequency equal to any frequency generated in the vertical pump can avoid the entire system resonance.
이하, 본 발명을 실시예에 의해 상세히 설명하면 다음과 같다.
Hereinafter, the present invention will be described in detail by way of examples.
실시예Example
질량체 1,000㎏ (800×800×200㎜)의 하부에 탄성마운트 4개가 적용설치된 동흡진기 모델을 이용하여 진동해석을 실시하였으며, 유한요소 해석 결과 동흡진기 모델의 고유 진동수는 5.55㎐ 로 나타났다. 이와 같은 결과에 의해 대형 수직펌프의 횡방향 고유진동수를 고려하더라도 충분히 공진제어가 가능함을 알 수 있다. 이때, 상기 탄성마운트는 수직강성 5750 kN/m, 수평강성 310.5kN/m 이었다.
The vibration analysis was carried out using a dynamic reducer model with four elastic mounts installed under the 1,000 kg (800 × 800 × 200㎜) mass, and the natural frequency of the dynamic reducer model was 5.55㎐. As a result, it can be seen that the resonance control is sufficiently possible even when the lateral natural frequency of the large vertical pump is considered. At this time, the elastic mount was vertical stiffness 5750 kN / m, horizontal stiffness 310.5 kN / m.
본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위내에 있게 된다.
The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.
(10) : 질량체 (20) : 탄성마운트
(21) : 철판 (22) : 철판
(23) : 점탄성물질 (30) : 수직형 펌프
(31) : 수직형 펌프 상부 (40) : 동흡진기(10): mass body (20): elastic mount
21: iron plate 22: iron plate
(23): viscoelastic material (30): vertical pump
(31): vertical pump upper portion (40): copper reducer
Claims (3)
상기 동흡진기는 펌프 상부에 볼트조립되고 점탄성 물질이 중간에 삽입된 샌드위치 패널형 탄성마운트와;
상기 패널형 탄성마운트 상부에 고정설치되는 질량체를 포함하는 것을 특징으로 하는 탄성마운트를 이용한 펌프용 동흡진기.
Install a copper reducer on top of the pump,
The copper reducer includes a sandwich panel type elastic mount bolted to the upper part of the pump and a viscoelastic material inserted into the middle of the pump;
A copper reducer for pump using an elastic mount, characterized in that it comprises a mass body fixed to the upper panel-like elastic mount.
상기 탄성마운트는 철판 사이에 점탄성물질이 부착된 부착된 샌드위치 타입으로 이루어진 것을 특징으로 하는 탄성마운트를 이용한 펌프용 동흡진기.
The method of claim 1,
The elastic mount is a pump-type copper reducer using an elastic mount, characterized in that made of a sandwich type attached viscoelastic material between the iron plate.
상기 점탄성 물질은 중합체 물질(polymeric materials)인 plastic, rubber, acrylics(아크릴 수지), silicones, vinyls, adhesives(점착성 물질), urethanes, epoxies, elastomers(탄성 중합체 : 천연 고무 또는 합성 고무) 중 선택된 하나인 것을 특징으로 하는 탄성마운트를 이용한 펌프용 동흡진기.The method according to claim 2;
The viscoelastic material may be selected from polymer materials such as plastic, rubber, acrylics, silicones, vinyls, adhesives, adhesives, urethanes, epoxies, and elastomers (elastic polymers: natural rubber or synthetic rubber). Copper reducer for pumps using an elastic mount, characterized in that.
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| KR1020100085301A KR101467012B1 (en) | 2010-09-01 | 2010-09-01 | Dynamic vibration absorber for pump using rubber mount |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895985A (en) * | 2019-04-03 | 2019-06-18 | 中国船舶重工集团公司第七一九研究所 | Central cooler of ship external dynamic sea motivates heat exchanger tube vibration control method and system |
| CN109895947A (en) * | 2019-04-03 | 2019-06-18 | 中国船舶重工集团公司第七一九研究所 | Ship sea water service system fluid excited vibration influences attenuation systems and method |
| CN110015394A (en) * | 2019-04-03 | 2019-07-16 | 中国船舶重工集团公司第七一九研究所 | The control method and system of Central cooler of ship cooling water excitation heat exchange tube vibration |
| CN110015393A (en) * | 2019-04-03 | 2019-07-16 | 中国船舶重工集团公司第七一九研究所 | The control method and device of Central cooler of ship cooling water excitation heat exchange tube vibration |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002295581A (en) * | 2001-03-28 | 2002-10-09 | Boc Edwards Technologies Ltd | Damper and vacuum pump |
| KR100631529B1 (en) * | 2004-02-20 | 2006-10-09 | 엘지전자 주식회사 | Compressor with dynamic vibration absorber |
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2010
- 2010-09-01 KR KR1020100085301A patent/KR101467012B1/en active IP Right Grant
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895985A (en) * | 2019-04-03 | 2019-06-18 | 中国船舶重工集团公司第七一九研究所 | Central cooler of ship external dynamic sea motivates heat exchanger tube vibration control method and system |
| CN109895947A (en) * | 2019-04-03 | 2019-06-18 | 中国船舶重工集团公司第七一九研究所 | Ship sea water service system fluid excited vibration influences attenuation systems and method |
| CN110015394A (en) * | 2019-04-03 | 2019-07-16 | 中国船舶重工集团公司第七一九研究所 | The control method and system of Central cooler of ship cooling water excitation heat exchange tube vibration |
| CN110015393A (en) * | 2019-04-03 | 2019-07-16 | 中国船舶重工集团公司第七一九研究所 | The control method and device of Central cooler of ship cooling water excitation heat exchange tube vibration |
| CN109895947B (en) * | 2019-04-03 | 2020-05-26 | 中国船舶重工集团公司第七一九研究所 | Fluid excitation vibration influence weakening system and method applied to ship seawater system |
| CN110015393B (en) * | 2019-04-03 | 2020-06-09 | 中国船舶重工集团公司第七一九研究所 | Control method and device for exciting vibration of heat exchange tube by cooling water of central cooler of ship |
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| KR101467012B1 (en) | 2014-12-01 |
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