US20090293380A1 - Friction damper - Google Patents

Friction damper Download PDF

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Publication number
US20090293380A1
US20090293380A1 US12/306,709 US30670907A US2009293380A1 US 20090293380 A1 US20090293380 A1 US 20090293380A1 US 30670907 A US30670907 A US 30670907A US 2009293380 A1 US2009293380 A1 US 2009293380A1
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US
United States
Prior art keywords
friction damper
peripheral surface
cylinder
slide
slide bearing
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.)
Abandoned
Application number
US12/306,709
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English (en)
Inventor
Kazuhiko Sasaki
Mitsuru Miyazaki
Kazuaki Shiki
Kazuhiro Nagashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oiles Corp
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Oiles Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oiles Corp filed Critical Oiles Corp
Publication of US20090293380A1 publication Critical patent/US20090293380A1/en
Abandoned legal-status Critical Current

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    • 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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/0237—Structural braces with damping devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/028—Earthquake withstanding shelters

Definitions

  • the present invention relates to a friction damper, and more particularly to a friction damper mounted between a pair of structural members of a building structure that relatively displaces with each other when repeated tensile and compressive forces are added thereto due to earthquake or the like and absorbing the energy.
  • dampers for rapidly attenuating vibration of structures generated by earthquake or the like are there one utilizing plastic deformation of steel bars and lead, one utilizing viscous shear of viscous material, one utilizing friction and so on.
  • dampers utilizing frictional force are advantageous in simple construction and easy handling compared with the above-mentioned dampers, and the following ones are known.
  • a vibration suppression damper described in the patent document 1 comprises: a cylinder body having a connection part connected to a member of a building; a rod with a connection part connected to the other member of the building; a holding cylinder mounted to the rod through a viscoelastic member; a slide member mounted through an elastic repellent member that applies a uniform urging force to an outer periphery of the holding cylinder and urged by the elastic-repellent member in a direction of outer periphery, and on the outer periphery of the slide member is provided a friction member slidingly contact with an inner periphery of the cylinder body.
  • an energy absorbing device for a structural member comprises: a container box formed of an outer frame and an inner frame that are axially slidable with each other; a dice fixed to an inside of either one of the inner frame or the outer frame; a fitting-in rod fixed to the other frame and extending through a hole of the dice in an axial direction of the container box, in which the hole diameter of the dice is set smaller than the outer diameter of the fitting-in rod and the fitting-in rod is a steel rod that is made to pass through the dice and hardened in advance, when a cyclic load of overtension and overcompression more or equal to a prescribed strength acts to a structural member, the energy absorbing device for the structural member absorbs energy while a part of the fitting-in rod passing through the dice deforming.
  • a friction damper comprises: a base body; a support member adhered to a long member of the base body and having a throughhole; a rod extending through the throughhole of the support member and relatively movable to the support member in an axial direction of the rod; a friction member having a cylindrical part interposed between the support member and a main body portion of the rod in the throughhole of the support member and fixed to be immobile in relation to an axial movement of the rod relative to the base body; a fastening means provided to the support member to fasten the cylindrical part of the friction member to the main body portion of the rod.
  • the slide friction damper comprises: an inner cylinder part to which a rubber elasticity part consisting of self-lubricity rubber is adhered and fixed through vulcanization fabrication; an arm part attached to the both ends of the inner cylinder part; an inner cylinder fitting with rubber elasticity body bonded thereto, the rubber elasticity body being press-fitted into an outer cylinder part; the outer cylinder part made of stainless steel as a low friction material; an outer cylinder fitting with a support bar fixed on its outer peripheral surface and protruding in a radial direction thereof; and a cylindrical rubber elastic body part elastically connecting the inner and outer cylinder fittings.
  • Patent document 1 Japanese Utility Model Publication Showa 63-115642 gazette
  • Patent document 2 Japan Patent 3290912 gazette
  • Patent document 3 Japan Patent Publication 2003-278828 gazette
  • Patent document 4 Japanese Patent Publication 2004-3563 gazette
  • the energy absorbing device for structural member described in the patent document 2 absorbs energy by deformation of a portion of the fitting-in rod passing through the dice when the fitting-in rod, which is hardened in advance, passes the hole of the dice smaller than diameter thereof, but special processing was required for the fitting-in rod itself, further when using it, since it was necessary to pay attention to that a difference in resistance force between at initial shock and after slide becomes large, grease, lubrication oil, or the solid lubricant is needed to be applied in advance to an inner peripheral surface of the dice or/and an outer peripheral surface of the fitting-in rod as occasion demands.
  • the friction damper described in the patent document 3 is invented by the present applicant, and energy is absorbed by the friction between the slide layer made of synthetic resin, which is formed on a face of the base material with net body and is also filled in meshes of the net body, and the rod, and optimal frictional resistance can be obtained by the fastening means, further it is a friction damper with high stability with little difference in resistance force between at initial shock and after slide.
  • the slide member consisting of the slide layer made of synthetic resin, which is formed on a face of the base material with net body and is also filled in meshes of the net body, the slide member deforms since the member consists of base material with net body, which causes a problem that a desired pressure cannot be added.
  • the slide friction damper described in the patent document 4 attenuates vibration by causing the self-lubricating rubber to contact the metal fittings with the rubber being compressed and through friction generated between the self-lubricating rubber and the metal fitting, since the self-lubricating rubber is used, the frictional force acquired is set small, so that the damper is unsuitable for common structures.
  • the present invention has been made in consideration of the problems in the above conventional techniques, and the object thereof is to provide a friction damper with simple construction having characteristics that there is little difference in resistance forces between at initial shock and after slide, and it is difficult to deform slide member under large fastening force, as a result, large frictional force can stably be generated.
  • the present invention relates to a friction damper, and this damper is characterized by comprising: a cylinder box; a plurality of cylinder members axially fixed in the cylinder box; a clearance formed between an outer peripheral surface of each cylinder member and an inner peripheral surface of the cylinder box; a slide bearing press-fitted into an inner peripheral surface of the cylinder member; and a shaft made of metal, the shaft being axially slidably press-fitted into an inner peripheral surface of the slide bearing; wherein when the cylinder box and the shaft move axially in relation to each other, an outer peripheral surface of the shaft and the inner peripheral surface of the slide bearing frictionally slide in relation to each other to absorb vibration energy.
  • the friction damper of the present invention When the friction damper of the present invention is mounted to an intermediate portion or an end portion of a structural member of a building structure such that the cylinder box and the shaft relatively axially movable with each other, and repeated tensile and compressive forces are added to the structural member of the building structure due to earthquake or the like, the inner peripheral surface of the slide bearing press-fitted into the cylinder member and the outer peripheral surface of the shaft frictionally slide with each other to absorb vibration energy, which provides a friction damper with simple construction and excellent reliability and safety.
  • the slide bearing includes a multi-layered member in which a metal layer on an outer peripheral surface side, a coat layer on an inner peripheral surface side made of synthetic resin compound for coating the metal layer and a junction layer for joining the metal layer and the coat layer are integrally formed with each other. Since the slide surface against the outer peripheral surface of the shaft made of metal is formed to be synthetic resin compound, adhesion phenomenon between the members are difficult to occur, which makes difference in resistance forces between at initial shock and after slide little.
  • the junction layer may be a porous bronze sintered layer. With this, synthetic resin compound as the coat layer can securely be held.
  • the synthetic resin compound may be polytetrafluoroethylene resin containing a filler, and as the filler, one or at least two selected from a group consisting of heat-resistant resin, reinforcing fiber, orthophosphate and solid lubricant can be used.
  • the slide bearing may be formed by rolling the f with the coat layer being inside.
  • the slide bearing may have a flange portion at an end portion of a cylindrical bearing portion. Inserting the flange portion between opposing sides of adjacent cylinder members prevents axial movement of the slide bearing when axial vibration is added.
  • the slide bearing can be extracted out of the cylinder member as occasion demands, so that consumable parts can easily be replaced and it is preferable in maintenance side of the friction damper.
  • plurality of the cylinder members can axially be fixed in the cylinder box, and a clearance may be formed between an outer peripheral surface of each cylinder member and an inner peripheral surface of the cylinder box.
  • FIG. 1( a ) is a front view of a friction damper according to an embodiment of the present invention
  • FIG. 1( b ) is a cross-sectional view taken along the line A-A of FIG. 1( a );
  • FIG. 1( c ) is an enlarged view of the encircled region B of FIG. 1( b );
  • FIG. 2( a ) is a front view of a housing of the friction damper shown in FIG. 1( a );
  • FIG. 2( b ) is a cross-sectional view taken along the line C-C of FIG. 2( a );
  • FIG. 3( a ) is a front view of a bearing of the friction damper shown in FIG. 1( a );
  • FIG. 3( b ) is a side view of the bearing shown in FIG. 3( a );
  • FIG. 4 is a detailed partial cross-sectional view of the bearing of the friction damper shown in FIG. 3 ;
  • FIG. 5 is a schematic view showing an example of use of the friction damper shown in FIG. 1( a );
  • FIG. 6 is a hysteresis curve of a friction damper according to the present invention.
  • FIG. 7 is a graph showing resistance force and an applied vibration cycle of a friction damper according to the present invention.
  • FIG. 1( a ) shows a friction damper according to an embodiment of the present invention
  • the friction damper 1 comprises: a cylinder (cylinder box) 2 and a rod (shaft) 3 relatively movable with each other in an axial direction X and; three housings (cylinder members) 6 axially fixed in the cylinder 2 by a pressure support pipe 4 and a fastening pipe 5 ; three slide bearings (hereinafter referred to as “bearings”) 7 , each of them press-fitted into each inner peripheral surface of the housing 6 ; and mounting parts 8 , 9 mounting the friction damper 1 to construction members or the like of a building structure.
  • the cylinder 2 is, as shown in FIG. 1( b ), integrally formed with a left end portion of the mounting part 9 at a right end portion thereof through screw fastening, and a joint of the two parts is filled with calking agent to improve weatherability.
  • To the mounting part 9 are screwed bolts 10 to mount the part 9 to a building structure.
  • the cylindrical pressure support pipe 4 In the cylinder 2 is disposed the cylindrical pressure support pipe 4 so as to abut a left side face of the mounting part 9 . Between this pressure support pipe 4 and the fastening pipe 5 connected through screw to a left end portion of the cylinder 2 are mounted three sets of housings 6 and bearings 7 .
  • the housing 6 is, as shown in FIGS. 2( a ) and 2 ( b ), formed to be cylindrical, and the inner diameter of the bearing 7 press-fitted into the housing 6 is slightly smaller than the outer diameter of the rod 3 , which allows the rod 3 to always be tightened.
  • the bearing 7 is, as shown in FIGS. 3( a ) and 3 ( b ), in addition to a cylindrical bearing portion 7 a , provided with a flange portion 7 b integrally formed with the cylindrical bearing portion 7 a , and the cylindrical bearing portion 7 a has a slit 7 f that is generated when manufacturing the bearing 7 through rolling.
  • This flange portion 7 b is, as shown in FIG. 1( c ), inserted between opposing sides of adjacent housings 6 , and the overall bearing 7 is fixed to be immobile in relation to a movement of the rod 3 relative to the cylinder 2 in the axial direction X.
  • the bearing 7 comprises, as shown in FIG. 4 , metal layer (back-metal layer) 7 c coated with copper; porous bronze sintered layer (junction layer) 7 d with pores that is formed by scattering and spreading bronze powder to one surface of the metal layer 7 c and sintering the powder; and a coat layer 7 e that is formed by filling the pores in the porous bronze sintered layer 7 d and coating the surface of the porous bronze sintered layer 7 d with polytetrafluoroethylene resin containing a filler, and the bearing 7 is manufactured by wholly sintering these materials and rolling them by a roll to a prescribed thickness to manufacture a multi-layered member, and further rolling the multi-layered member such that a face on the coat layer 7 e side of the multi-layered member is placed on the inner diameter side and another face on the metal layer 7 c side is placed on the outer diameter side, further attaching the flange portion 7 b to prevent slip-off.
  • a synthetic resin compound used for the coat layer of the bearing 7 may be, besides polytetrafluoroethylene resin containing a filler, synthetic resin compound based on polyamide-imide resin.
  • the filler used for the coat layer of the bearing 7 is made from one or at least two selected from a group consisting of heat-resistant resin, reinforcing fiber, phosphate and solid lubricant, for instance, the heat-resistant resin may be polyimide resin, the reinforcing fiber may be carbon fiber, the phosphate can be calcium phosphate and the solid lubricant may be graphite.
  • the heat-resistant resin may be polyimide resin
  • the reinforcing fiber may be carbon fiber
  • the phosphate can be calcium phosphate
  • the solid lubricant may be graphite.
  • the rod 3 is provided with a male screw portion 3 b at a left end portion of a cylindrical main body 3 a , and the male screw portion 3 b is screwed with a female screw portion 8 a of the mounting part 8 as well as a nut 11 for preventing slip-off.
  • a cover 12 Outside of the rod 3 adjacent to the nut 11 is mounted a cover 12 , and a right end portion of the cover 12 is fixed to the fastening pipe 5 through the bolt 13 , and a left end portion of the cover 12 is caused to slidably contact the sealing material 14 .
  • a pin 15 for mounting the friction damper 1 to a building structure.
  • the mounting part 9 At first, as illustrated in FIG. 1( b ), to a right end portion of the cylinder 2 is mounted the mounting part 9 through screw fastening, and between the cylinder 2 and the mounting part 9 is filled calking agent. Then, from a left opening of the cylinder 2 is inserted the pressure support pipe 4 into the cylinder 2 , and a right end portion of the pressure support pipe 4 is caused to abut a left end portion of the mounting part 9 .
  • the female screw portion 8 a of the mounting part 8 is caused to be screwed to the male screw portion 3 b , and the nut 11 is fastened until an left end portion thereof abuts a right end portion of the mounting part 8 to unify the rod 3 and the mounting part 8 .
  • a right end portion of the rod 3 is inserted into the cylinder 2 from the left opening of the cylinder 2 , and the rod 3 is moved right while the outer peripheral surface of the rod 3 sliding the inner peripheral surface of the bearing 7 to obtain the condition shown in FIG. 1( b ).
  • the housings 6 are axially fixed in the cylinder 2 with clearances S between the outer peripheral surfaces of the housings 6 and the inner peripheral surface of the cylinder 2 , so that, in the press-fitting work of the rod 3 , the rod 3 can be press-fitted under the condition that each of the housings 6 into which the bearings 7 are press-fitted is movable in an direction vertical to the axial direction such that the center of the rod 3 and the centers of the bearing 7 coincide with each other, which allows differences may not be produced among conditions of frictional surfaces between each of the bearing 7 and the rod 3 .
  • a cover 12 To the outside of the rod 3 is mounted a cover 12 ; the right end portion of the cover 12 is fixed to the fastening pipe 5 through the bolt 13 ; and the left end portion of the cover 12 is caused to slidably contact the sealing material 14 . Finally, the bolts 10 are screwed to the mounting part 9 , and the pin 15 is inserted into the hole portion 8 b of the mounting part 8 to complete assembling of the friction damper 1 .
  • FIG. 1( b ) to the right end portion of the cylinder 2 is mounted the mounting part 9 through screw fastening, and between the cylinder 2 and the mounting part 9 is filled the caulking agent. Then, from the left opening of the cylinder 2 is inserted the pressure support pipe 4 into the cylinder 2 , and the right end portion of the pressure support pipe 4 is caused to abut the left end portion of the mounting part 9 .
  • the female screw portion 8 a of the mounting part 8 is screwed to the male screw portion 3 b , and the nut 11 is fastened until the left end portion of the nut 11 abuts the right end portion of the mounting part 8 to unify the rod 3 and the mounting part 8 .
  • the rod 3 is inserted while the outer peripheral surface thereof sliding the inner peripheral surface of each of the bearings 7 of three housings 6 with inner peripheral surfaces into which the bearing 7 are press-fitted to dispose the three housings 6 to predetermined positions on the rod 3 .
  • the rod 3 to which each of the housings 6 into which the bearings 7 are press-fitted are arranged at predetermined positions thereon, is inserted from the left opening of the cylinder 2 until the left end of the pressure support pipe 4 arranged in the cylinder 2 abuts the right end of the housing 6 , and the fastening pipe 5 is caused to screw to a screw portion on a left end inner diameter side of the cylinder 2 to fix the three housings 6 so as not to move in an axial direction.
  • the cover 12 On the outside of the rod 3 is mounted the cover 12 , and the right end portion of the cover 12 is fixed to the fastening pipe 5 through the bolt 13 , and the left end portion of the cover 12 is caused to slidably contact the sealing material 14 . Finally, to the mounting part 9 are screwed the bolts 10 , and into the hole portion 8 b of the mounting part 8 is inserted the pin 15 to complete assembling of the friction damper 1 .
  • FIG. 5 shows a case that the friction damper 1 is used for a building structure, and between a lower beam 21 A and an upper beam 21 B, the friction dampers 1 ( 1 A to 1 D) are mounted between obliquely arranged steel pipe braces 22 ( 22 A, 22 B) and brackets 24 and the like.
  • the friction damper 1 ( 1 A) is connected to the bracket 24 by the pin 15 shown in FIG. 1 , and is connected to the oblique steel pipe brace 22 A by the bolts 10 .
  • constructing the mounting part 8 rotatable to the rod 3 allows the friction damper 1 to be mounted to the bracket 24 with ease.
  • each of the flange portions 7 b of the bearings 7 is held by opposing sides of adjacent housings 6 , and each of the flange portions 7 b is fixed to be immobile in relation to the movement of the rod 3 relative to the cylinder 2 in the direction indicated by the arrow X, which allows each of the bearings 7 to securely be fixed to prevent shift of each bearing 7 in position to each housing 6 .
  • the coat layer 7 e of the bearing 7 as a slide surface is a layer of polytetrafluoroethylene resin containing a filler, so that the friction damper 1 can be used without lubricant, and is excellent in dimension stability, mechanical strength and heat conductivity, and the coat layer 7 e is thin, resulting in lighter and small sized friction damper 1 .
  • the bearing 7 with multi-layered member comprising: the metal layer 7 c of the bearing 7 ; the porous bronze sintered layer 7 d as a junction layer integrally formed on a surface of the 7 c ; and the coat layer 7 e of synthetic resin compound filled in pores of the porous bronze sintered layer 7 d and coating the surface of the porous bronze sintered layer 7 d , in place of the porous bronze sintered layer 7 d as a junction layer for jointing the metal layer 7 c and the coat layer 7 e , the metal layer and the synthetic resin compound may be jointed by bonding agent when it is strong such that they can be jointed steadily under large fastening force, further they can be jointed directly.
  • the housing 6 and the bearing 7 are arranged three by three, that is, three sets of the housings 6 and the bearings 7 are disposed, the both may be arranged one by one, and two or four sets or more may be disposed.
  • Displacement and resistance force of the rod 3 were measured when the cylinder 2 of the friction damper 1 with the construction shown in FIG. 1 was fixed and the rod 3 was caused to axially move in relation to the cylinder 2 .
  • the bearing 7 a polytetrafluoroethylene resin multi-layered member bearing with back metal comprising a metal layer, porous bronze sintered layer as a junction layer and a polytetrafluoroethylene resin as a coat layer, in which the rod 3 of 190.7 mm in outer diameter and 1350 mm in length was used and a high speed testing machine capable of applying up to 3000 kN was used. The result is shown in FIG. 6 .
  • the axis of abscissas shows axial slide displacement (mm) of the rod 3
  • the axis of ordinates shows resistance force (kN) required to slide the rod 3
  • the graph is a hysteresis when the slides of the rod 3 are repeated eleven times.
  • FIG. 7 shows the change in resistance force in each cycle at the above test. With the graph, it is understood that the resistance force in each cycle is almost the same regardless of the number of times that the slides are repeated.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Dampers (AREA)
US12/306,709 2006-06-30 2007-06-27 Friction damper Abandoned US20090293380A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006180992 2006-06-30
JP2006-180992 2006-06-30
PCT/JP2007/062882 WO2008001804A1 (fr) 2006-06-30 2007-06-27 Amortisseur à friction

Publications (1)

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US20090293380A1 true US20090293380A1 (en) 2009-12-03

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US12/306,709 Abandoned US20090293380A1 (en) 2006-06-30 2007-06-27 Friction damper

Country Status (7)

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US (1) US20090293380A1 (fr)
EP (1) EP2037147B1 (fr)
JP (1) JP5052513B2 (fr)
KR (1) KR101331159B1 (fr)
CN (1) CN101484722B (fr)
TW (1) TWI403633B (fr)
WO (1) WO2008001804A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120247036A1 (en) * 2009-12-23 2012-10-04 Vsl International Ag Cable friction damper
US20130174501A1 (en) * 2012-01-06 2013-07-11 The Penn State Research Foundation Compressed elastomer damper for earthquake hazard reduction

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2944077B1 (fr) * 2009-04-06 2011-05-06 Messier Dowty Sa Dispositif a glissement avec friction controlee, tel qu'un amortisseur, pouvant fonctionner dans les deux sens
DE102009016824A1 (de) * 2009-04-09 2010-10-14 Rudolf Lonski Reibungsdämpfer mit Gehäuse, insbesondere für Trommelwaschmaschinen mit Schleudergang
CN102374250A (zh) * 2011-10-20 2012-03-14 沈阳建筑大学 复合筒可调摩擦阻尼器
JP6343437B2 (ja) * 2012-09-24 2018-06-13 三協立山株式会社 免震具及び免震具を備える被支持物
JP7098501B2 (ja) 2018-10-09 2022-07-11 キャタピラー エス エー アール エル パイプ部材
CN109356298B (zh) * 2018-11-02 2021-04-09 江苏蓝科减震科技有限公司 一阶摩擦型屈曲约束支撑

Citations (3)

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Publication number Priority date Publication date Assignee Title
US6367601B1 (en) * 1997-01-08 2002-04-09 Roberto Ferlicca Friction damper for washing machines
US20030026650A1 (en) * 2001-07-20 2003-02-06 Bruno Domange Process and device for the damping of motion between two cylindrical parts sliding with one another in translation and friction
US20050087414A1 (en) * 2002-01-16 2005-04-28 Akihiko Okimura Friction damper

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JPS63115642U (fr) 1987-01-23 1988-07-26
JP3290912B2 (ja) 1997-02-25 2002-06-10 株式会社巴コーポレーション 構造部材用エネルギー吸収装置
AU3739599A (en) * 1998-04-01 1999-10-18 Aksistem Elektromekanik Sanayi Ve Ticaret Ltd. Sti. A friction vibration damper
JP2002113283A (ja) * 2000-10-11 2002-04-16 Sharp Corp 減衰装置及びそれを用いた洗濯機
JP2004003563A (ja) 2002-05-31 2004-01-08 Tokai Rubber Ind Ltd 滑り摩擦ダンパー
JP2006038180A (ja) * 2004-07-29 2006-02-09 Oiles Ind Co Ltd 円筒軸受ブッシュ及び該円筒軸受ブッシュの製造方法
SI1637640T1 (sl) * 2004-09-15 2008-08-31 Suspa Holding Gmbh Dušilnik

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6367601B1 (en) * 1997-01-08 2002-04-09 Roberto Ferlicca Friction damper for washing machines
US20030026650A1 (en) * 2001-07-20 2003-02-06 Bruno Domange Process and device for the damping of motion between two cylindrical parts sliding with one another in translation and friction
US20050087414A1 (en) * 2002-01-16 2005-04-28 Akihiko Okimura Friction damper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120247036A1 (en) * 2009-12-23 2012-10-04 Vsl International Ag Cable friction damper
US10260588B2 (en) * 2009-12-23 2019-04-16 Vsl International Ag Cable friction damper
US20130174501A1 (en) * 2012-01-06 2013-07-11 The Penn State Research Foundation Compressed elastomer damper for earthquake hazard reduction
US8844205B2 (en) * 2012-01-06 2014-09-30 The Penn State Research Foundation Compressed elastomer damper for earthquake hazard reduction

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KR20090025326A (ko) 2009-03-10
WO2008001804A1 (fr) 2008-01-03
TW200815653A (en) 2008-04-01
EP2037147A1 (fr) 2009-03-18
KR101331159B1 (ko) 2013-11-20
CN101484722B (zh) 2011-06-15
JP5052513B2 (ja) 2012-10-17
JPWO2008001804A1 (ja) 2009-11-26
TWI403633B (zh) 2013-08-01
EP2037147A4 (fr) 2012-12-26
EP2037147B1 (fr) 2017-10-18
CN101484722A (zh) 2009-07-15

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