KR20140127909A - 유압 작동 시스템에 의한 진동 감쇠 시스템 - Google Patents
유압 작동 시스템에 의한 진동 감쇠 시스템 Download PDFInfo
- Publication number
- KR20140127909A KR20140127909A KR1020147027052A KR20147027052A KR20140127909A KR 20140127909 A KR20140127909 A KR 20140127909A KR 1020147027052 A KR1020147027052 A KR 1020147027052A KR 20147027052 A KR20147027052 A KR 20147027052A KR 20140127909 A KR20140127909 A KR 20140127909A
- Authority
- KR
- South Korea
- Prior art keywords
- chamber
- damping
- hydraulic
- actuator
- electric
- 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.)
- Withdrawn
Links
- 238000013016 damping Methods 0.000 title claims abstract description 77
- 230000009977 dual effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 17
- 230000036316 preload Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 6
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 244000145845 chattering Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/008—Reduction of noise or vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
- E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/44—Vibration dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/007—Control for preventing or reducing vibration, chatter or chatter marks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
- B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- 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
- F16F15/005—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion using electro- or magnetostrictive actuation means
- F16F15/007—Piezoelectric elements being placed under pre-constraint, e.g. placed under compression
-
- 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
- F16F15/023—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 fluid means
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
도 1은 본 발명에 따르는 감쇠 장치를 포함하는 감쇠 시스템을 개략적으로 도시한다;
도 2는 도 1에서의 감쇠 장치의 부분적인 확대를 도시한다;
도 3 내지 도 7은 도 2에 도시된 감쇠 장치 부분의 변형예를 도시한다;
도 8은 부품 자체의 치수 파라미터가 변하면서 그려진 선행하는 수치들에 따르는 감쇠 시스템의 부품의 전달 함수도를 도시한다;
도 9는 압연기 스탠드(rolling mill stand)의 초크(chocks)에 있는 감쇠 시스템의 일실시예를 개략적으로 나타낸다;
도 10은 본 발명에 따르는 감쇠 장치의 일실시예의 종단면을 나타낸다.
도면에서 동일한 참조 번호와 문자는 동일한 부재 또는 구성 요소를 가리킨다.
Claims (15)
- 유압 작동 시스템에 의한 진동 감쇠 시스템은:
- 가동부(11)를 구비한 적어도 하나의 유압 액츄에이터(1),
- 대응하는 유압 공급 회로(2), 및
- 상기 유압 액츄에이터(1)의 상기 가동부(11)에 작용하는 진동력을 위한 유압 진동 감쇠 수단 (3)을 포함하며; 상기 진동력의 감쇠를 활성화하도록 상기 감쇠 수단(3)이 상기 유압 회로(2)에 연결되고,
상기 감쇠 수단(3)은 상기 유압 회로(2)에 유압식으로 연결된 제 1 챔버(34, 134)와 전기 감쇠부(32, 132)에 연결된 가동부(35, 135)를 구비한 이중 챔버 실린더(31)를 포함하며, 그리고 교정된 파이프/통로(36, 136)에 의하여 상기 제 1 챔버(34, 134)는 상기 이중 챔버(31)의 제 2 챔버(33, 133)에 유압식으로 연결 및 연통되는 것을 특징으로 하는, 감쇠시스템.
- 제 1 항에 있어서,
상기 제 2 챔버(34)를 향한 압력파의 전파는 상기 교정 파이프(36)의 임계 주파수와 관련하여 허용/금지되는, 감쇠 시스템.
- 제 1 항 또는 제 2 항에 있어서,
상기 제 1 챔버(34)는 상기 제 2 챔버(33)의 부피보다 작은 부피를 갖는, 감쇠 시스템.
- 제 3 항에 있어서,
상기 제 1 챔버(34)의 부피에 대한 상기 제 2 챔버(33)의 비는 적어도 10인, 감쇠 시스템.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
상기 가동부(35)는 상기 제 1 챔버(34) 내부로 향하는 제 1 면(35A) 및 상기 제 2 챔버(33) 내부로 향하는 제 2 면(35A)을 포함하며, 상기 제 1 면(35A)의 표면은 상기 제 2 면(35B)보다 큰, 감쇠 시스템.
- 제 1 항 내지 제 5 항 중 어느 한 항에 있어서,
상기 전기 감쇠부(32)는 상기 두 챔버(33, 34) 중 어느 하나의 내측에 배치된, 감쇠 시스템.
- 제 1 항 내지 제 6 항 중 어느 한 항에 있어서,
상기 전기 감쇠 시스템(32)은 수동 전자기 유형인, 감쇠 시스템.
- 제 7 항에 있어서,
상기 전기 감쇠부(32)의 동작 파라미터는 제어 가능하며, 상기 감쇠 시스템은
-상기 유압 액츄에이터(1)의 상기 가동부(11)의 이동 및/또는 속도 및/또는 가속도 및/또는
-상기 유압 회로(2)에 있는 압력의 측정을 위한 수단(5)에 연결된 처리 수단(6)을 더 포함하여 상기 동작 파라미터를 제어하는 시스템.
- 제 1 항 내지 제 6 항 중 어느 한 항에 있어서,
상기 전기 감쇠부(32)는 능동 전기 액츄에이터를 포함하며, 상기 감쇠 시스템은
-상기 유압 액츄에이터(1)의 상기 가동부(11)의 이동 및/또는 속도 및/또는 가속도 및/ 또는
-상기 유압 회로(2)에 있는 압력을 측정하기 위한 수단(5)과 연결된 처리 수단(6)을 더 포함하는 시스템.
- 제 9 항에 있어서,
상기 전기 감쇠부(32)는 압전 액츄에이터를 포함하며, 상기 표면(35A, 35B)의 차이는 상기 압전 액츄에이터(32)를 위한 예압을 규정하기에 적합한, 감쇠 시스템.
- 제 9 항 또는 제 10 항에 있어서,
상기 전기 감쇠부(32)는 압전 액츄에이터를 포함하며, 상기 압전 액츄에이터(32)에 작용하여 이의 예압을 규정하도록 상기 시스템은 예압 스프링(9)을 포함하는, 감쇠 시스템.
- 제 8 항 또는 제 9 항에 있어서,
상기 처리 수단은 상기 측정 수단(5)이 상기 임계 주파수보다 높은 진동 주파수를 감지하면 상기 전기 감쇠부(32)의 감쇠 효과를 제어하도록 프로그램되는, 감쇠 시스템
- 제 1 항 내지 제 12 항 중 어느 한 항에 있어서,
상기 통로(34)는 상기 이중 챔버 실린더 (31) 및 상기 가동부(35, 135)의 커플링에서 형성된, 감쇠 시스템.
- 제 13 항에 있어서,
상기 통로는 상기 커플링의 각 섹터에 위치하거나, 또는 상기 가동부(25, 135)의 전체 둘레를 따라 분배된, 시스템.
- 적어도 하나의 압연 스탠드(mill stand) 및 휨 제어를 위한 적어도 하나의 유압 액츄에이터(1), 및 제 1 항 내지 제14 항 중 어느 하나에 따르는 적어도 하나의 대응되는 감쇠 시스템을 포함하는 압연기.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI2012A000476 | 2012-03-26 | ||
IT000476A ITMI20120476A1 (it) | 2012-03-26 | 2012-03-26 | Sistema di smorzamento di vibrazioni mediante un sistema di attuazione idraulico |
PCT/IB2013/052386 WO2013144831A1 (en) | 2012-03-26 | 2013-03-26 | Vibration damping system by means of a hydraulic actuation system |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2020177000055U Division KR200485703Y1 (ko) | 2012-03-26 | 2013-03-26 | 유압 작동 시스템에 의한 진동 감쇠 시스템 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20140127909A true KR20140127909A (ko) | 2014-11-04 |
Family
ID=46022531
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020147027052A Withdrawn KR20140127909A (ko) | 2012-03-26 | 2013-03-26 | 유압 작동 시스템에 의한 진동 감쇠 시스템 |
KR2020177000055U Expired - Lifetime KR200485703Y1 (ko) | 2012-03-26 | 2013-03-26 | 유압 작동 시스템에 의한 진동 감쇠 시스템 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2020177000055U Expired - Lifetime KR200485703Y1 (ko) | 2012-03-26 | 2013-03-26 | 유압 작동 시스템에 의한 진동 감쇠 시스템 |
Country Status (9)
Country | Link |
---|---|
US (1) | US9599131B2 (ko) |
EP (1) | EP2831429B1 (ko) |
KR (2) | KR20140127909A (ko) |
CN (1) | CN104204552B (ko) |
CA (1) | CA2867030C (ko) |
EA (1) | EA029304B1 (ko) |
ES (1) | ES2577384T3 (ko) |
IT (1) | ITMI20120476A1 (ko) |
WO (1) | WO2013144831A1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014109066A1 (de) * | 2014-06-27 | 2015-12-31 | Claas Industrietechnik Gmbh | Getriebeanordnung |
MX392283B (es) * | 2014-07-25 | 2025-03-24 | Hoffmann La Roche | Dosificacion de un fluido a un volumen de menos de un milimetro. |
US10012217B2 (en) * | 2015-05-20 | 2018-07-03 | Bell Helicopter Textron Inc. | Controlled pump augmentation for active vibration isolation |
JP6879695B2 (ja) * | 2016-08-30 | 2021-06-02 | Kyb株式会社 | セミアクティブダンパ |
CN110756593B (zh) * | 2018-07-26 | 2020-10-27 | 宝山钢铁股份有限公司 | 一种抑制冷连轧机组振动的张力制度优化方法 |
CN114160583B (zh) * | 2021-11-29 | 2023-10-20 | 太原理工大学 | 一种轧机垂直振动的伺服阻尼器 |
CN116550759B (zh) * | 2023-07-11 | 2023-09-15 | 太原理工大学 | 一种基于减振装置的轧机辊系振动抑制方法和系统 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB906128A (en) * | 1960-04-06 | 1962-09-19 | Georg Weisheit | Improvements in and relating to electromagnetically actuated fluid flow control valves for use in control circuits |
DE2108783C3 (de) * | 1971-02-24 | 1975-12-04 | Nowosibirskij Metallurgitscheskij Sawod Imeni A.N. Kusmina, Nowosibirsk (Sowjetunion) | Einrichtung zum automatischen Regeln der Dicke von Flachwalzgut |
US5140203A (en) * | 1988-09-27 | 1992-08-18 | Mannesmann Rexroth Gmbh | Control motor for a servo-valve |
US5154263A (en) * | 1990-12-11 | 1992-10-13 | Monroe Auto Equipment Company | Method and apparatus for controlling the flow of damping fluid through a piston |
US5479777A (en) * | 1994-04-15 | 1996-01-02 | Mednext Inc. | Torque and speed control methods and apparatus for pneumatic motors |
CN1316601A (zh) * | 2000-04-04 | 2001-10-10 | 许金鲁 | 单向压式、单向拉式非线性增阻尼压液缓冲技术原理及应用 |
AT500766B1 (de) * | 2003-03-10 | 2008-06-15 | Voest Alpine Ind Anlagen | Verfahren und vorrichtung zur vermeidung von schwingungen |
DE102004045100A1 (de) * | 2004-09-17 | 2006-03-23 | Audi Ag | Dämpfungseinrichtung |
AT506398B1 (de) * | 2008-06-18 | 2009-09-15 | Siemens Vai Metals Tech Gmbh | Verfahren und vorrichtung zur unterdrückung von schwingungen in einer walzanlage |
JP5364323B2 (ja) * | 2008-09-12 | 2013-12-11 | カヤバ工業株式会社 | シリンダ装置 |
AT507088B1 (de) * | 2008-12-05 | 2010-02-15 | Siemens Vai Metals Tech Gmbh | Verfahren und vorrichtung zur aktiven unterdrückung von druckschwingungen in einem hydrauliksystem |
AT507087B1 (de) * | 2008-12-05 | 2010-02-15 | Siemens Vai Metals Tech Gmbh | Verfahren und vorrichtung zur semi-aktiven reduktion von druckschwingungen in einem hydrauliksystem |
-
2012
- 2012-03-26 IT IT000476A patent/ITMI20120476A1/it unknown
-
2013
- 2013-03-26 ES ES13723223.7T patent/ES2577384T3/es active Active
- 2013-03-26 US US14/384,127 patent/US9599131B2/en not_active Expired - Fee Related
- 2013-03-26 CA CA2867030A patent/CA2867030C/en not_active Expired - Fee Related
- 2013-03-26 KR KR1020147027052A patent/KR20140127909A/ko not_active Withdrawn
- 2013-03-26 WO PCT/IB2013/052386 patent/WO2013144831A1/en active Application Filing
- 2013-03-26 KR KR2020177000055U patent/KR200485703Y1/ko not_active Expired - Lifetime
- 2013-03-26 EA EA201401061A patent/EA029304B1/ru not_active IP Right Cessation
- 2013-03-26 EP EP13723223.7A patent/EP2831429B1/en active Active
- 2013-03-26 CN CN201380016229.8A patent/CN104204552B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
EP2831429B1 (en) | 2016-03-23 |
US9599131B2 (en) | 2017-03-21 |
EA029304B1 (ru) | 2018-03-30 |
CA2867030A1 (en) | 2013-10-03 |
CN104204552B (zh) | 2016-08-24 |
US20150047404A1 (en) | 2015-02-19 |
WO2013144831A1 (en) | 2013-10-03 |
EA201401061A1 (ru) | 2015-02-27 |
KR20170002649U (ko) | 2017-07-24 |
KR200485703Y1 (ko) | 2018-02-08 |
CN104204552A (zh) | 2014-12-10 |
ES2577384T3 (es) | 2016-07-14 |
EP2831429A1 (en) | 2015-02-04 |
ITMI20120476A1 (it) | 2013-09-27 |
CA2867030C (en) | 2017-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR200485703Y1 (ko) | 유압 작동 시스템에 의한 진동 감쇠 시스템 | |
EP2624973B1 (en) | Vibration damping system for a rolling mill with first and second passive hydraulic elements | |
US9593739B2 (en) | Negative stiffness hydraulic system | |
CN102271832A (zh) | 用于半有源降低液压系统内压缩振荡的方法和装置 | |
Song et al. | A novel piezoelectric-based active-passive vibration isolator for low-frequency vibration system and experimental analysis of vibration isolation performance | |
AU2002220028A1 (en) | Smart skin structures | |
EP1340002A2 (en) | Smart skin structures | |
CN103047363A (zh) | 一种刚度及阻尼可调的主动隔振装置 | |
CA3040730A1 (en) | A multipurpose viscous damper | |
Ni et al. | Study on a dynamic stiffness-tuning absorber with squeeze-strain enhanced magnetorheological elastomer | |
EP3077702B1 (en) | Negative stiffness hydraulic system | |
Sarath et al. | Application of smart fluid to control vibration in metal cutting: a review | |
Wang et al. | Optimization design of the magnetic multi-mass damper for multi-frequency vibration suppression | |
Wang et al. | Electromagnetic vibration absorber with tunable negative stiffness for variable frequency vibration control | |
Choi et al. | Design of a piezostack-based inertial actuator and application to vibration control: experimental investigation | |
Han et al. | Design and control of a hybrid mount featuring a magnetorheological fluid and apiezostack | |
US20170012494A1 (en) | Vibration Damper Comprising A Generator Connection | |
Sirviö | Vibration control of a four-chamber hydraulic cylinder system with a variable volume Helmholtz resonator | |
Zhang et al. | A variable stiffness MR damper for vibration suppression | |
KR100887976B1 (ko) | 차량용 롤 마운트 장치 | |
Zhou et al. | Variable stiffness and damping magnetorheological isolator | |
RU2301923C1 (ru) | Виброизолятор с переменным демпфированием | |
Hong et al. | Experimental Validation of Enhanced Active Vibration Isolation Methodology on a Structure with Three Transmission Paths Excited by Amplitude Modulated Signal in Mid-frequency Band | |
Wang et al. | Study on damping control for vibration isolation and its application | |
To¨ ho¨ nen et al. | Damping of Oscillatory Rolling Contact by Piezoelectric Actuators |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0105 | International application |
Patent event date: 20140926 Patent event code: PA01051R01D Comment text: International Patent Application |
|
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20140926 Comment text: Request for Examination of Application |
|
PG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20160330 Patent event code: PE09021S01D |
|
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20160901 Patent event code: PE09021S01D |
|
E601 | Decision to refuse application | ||
PE0601 | Decision on rejection of patent |
Patent event date: 20170420 Comment text: Decision to Refuse Application Patent event code: PE06012S01D Patent event date: 20160901 Comment text: Notification of reason for refusal Patent event code: PE06011S01I Patent event date: 20160330 Comment text: Notification of reason for refusal Patent event code: PE06011S01I |
|
PC1205 | Withdrawal of application forming a basis of a converted application | ||
WICV | Withdrawal of application forming a basis of a converted application |