WO2019113718A1 - Dissipateur à masse syntonisée bidirectionnelle à base de multiples leviers composites - Google Patents

Dissipateur à masse syntonisée bidirectionnelle à base de multiples leviers composites Download PDF

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Publication number
WO2019113718A1
WO2019113718A1 PCT/CL2018/000039 CL2018000039W WO2019113718A1 WO 2019113718 A1 WO2019113718 A1 WO 2019113718A1 CL 2018000039 W CL2018000039 W CL 2018000039W WO 2019113718 A1 WO2019113718 A1 WO 2019113718A1
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WO
WIPO (PCT)
Prior art keywords
mass
levers
dmsb
bidirectional
lever
Prior art date
Application number
PCT/CL2018/000039
Other languages
English (en)
Spanish (es)
Inventor
Luis Alejandro ROZAS TORRES
Rubén Luis BOROSCHEK KRAUSKOPF
Rodrigo Alfredo AILLAPAN QUINTEROS
Original Assignee
Universidad De Chile
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 Universidad De Chile filed Critical Universidad De Chile
Publication of WO2019113718A1 publication Critical patent/WO2019113718A1/fr

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Classifications

    • 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
    • E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/36—Bearings or like supports allowing movement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • 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
    • 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
    • F16F15/04—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 elastic 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
    • 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
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54—Anti-seismic devices or installations

Definitions

  • the present invention relates to a bidirectional tuned mass sink based on multiple composite levers, which corresponds to a type of tuned mass dissipator capable of simultaneously controlling two perpendicular vibrating modes whose frequencies are not necessarily equal.
  • the tuned mass dampers are devices used in structural control, these mechanisms basically consist of a mass, spring and damper system, usually fixed to a vibrating system to reduce the demand on structural elements by dissipating energy.
  • the present invention relates to "bidirectional tuned mass dissipator based on multiple composite levers" (hereinafter DMSB) which corresponds to a type of tuned mass dissipator capable of simultaneously controlling two perpendicular vibrating modes whose frequencies are not necessarily equal.
  • DMSB didirectional tuned mass dissipator based on multiple composite levers
  • the mechanisms that make up the DMSB allow the mass of it to cover large displacements in any direction in the plane. These displacements typically occur when the DMSB is used to control vibrations produced by the effects of earthquakes, wind, excitations caused by rotating machinery, among others.
  • the DMSB can also be used to control vibrations in smaller mechanisms or structures, such as those resulting from the passage of vehicles or excitations due to pedestrian crossing. Its use can also be extended to control vibrations produced by the operation of equipment resulting from its operation, impact loads, among others.
  • document CN 102995786 discloses a horizontally adjustable two-directional tuned mass damper comprising a rectangular base that is provided with a longitudinal carriage, in which a transverse carriage is disposed on the upper part of the longitudinal carriage; the front end and the rear end of the longitudinal carriage are each provided with a first shock absorber; one end of each first shock absorber is connected to a longitudinal carriage body by a universal coupling, and the other end of the first shock absorber is connected to the base by another universal coupling; the front end and the rear end of the cross slide are respectively provided with a second damper; one end of each shock absorber is connected to a transverse body of the carriage by a universal coupling, and the other end of the second shock absorber is connected to a second sliding block by another universal coupling; two longitudinal sliding rails are respectively arranged on the two sides of the base; the second sliding blocks correspond respectively with the longitudinal sliding rails; and an equilibrium weight is
  • the adjustable two-way tuned mass damper disclosed in this document is capable of absorbing bidirectional impacts and only needs a set of counterweights, so that the weight of the tuned mass damper is lighter than that of the traditional tuned mass damper ; and the two-way adjustable tuned dough damper is especially suitable for buildings such as a high-voltage power transmission tower and a radio tower.
  • the document CN 105756219 discloses a horizontal bidirectional viscoelastic tuned mass damper system and a working method thereof.
  • the horizontal bidirectional viscoelastic tuned mass cushion system comprises a hollow circular outer cylinder, an upper cover plate disposed above the hollow circular outer cylinder and a lower cover plate disposed below the hollow circular outer cylinder; a universal joint is disposed in the middle of the surface of the lower end of the upper cover plate; a circular viscoelastic limiting device is disposed in the middle of the upper end surface of the lower cover plate.
  • the shock absorber system adjusted by bi-directional horizontal viscoelastic collision also comprises a first block of cylindrical mass and a second block of cylindrical mass; the central part of the circle at the upper end of the first cylindrical mass block is articulated with the universal joint through a first rigid rod, and the central part of the circle at the lower end of the first cylindrical block is connected to the central part of the cylinder.
  • circle to the upper end of the second block of cylindrical mass through a second rigid rod; the bottom of the second block of dough cylindrical is located in the circular viscoelastic limiting device;
  • the first cylindrical mass block is also connected to the inner wall of the hollow circular outer cylinder through a plurality of springs.
  • the horizontal bidirectional viscoelastic tuned mass cushion system disclosed in this document is simple in structure and easy to perform and overcomes the defect of the cushioning effect of a traditional device.
  • CN 101021089 discloses a horizontal bidirectional multi-tuned mass damping device arranged in an area of a structure. It is characterized in that said device can be arranged by zones, in each zone the mass tuned in the direction of the guide is composed of two blocks of dough, said two blocks of dough, a guide rod and a rigid rod are part of a system; said device uses a guide and a device the lower roller and makes the roller slide along the direction of the guide to implement the control of the vibration in the direction of the guide; the mass tuned in the direction of the guide rod is provided by a mass block mentioned above, said device uses the roller of the lower part of the device and slides said roller along the guide bar to implement the control of the vibration in the direction of the guide rod.
  • Said invention is applicable to a high-rise tower, a nuclear power plant, an underground space structure and related structures.
  • the DMSB is composed of a mass which rests on systems that support its weight and at the same time allow its displacement in the plane. These systems can be of different types depending on the magnitude of the mass, being the most common: frictional sliders; bidirectional spherical wheels; low friction perpendicular rails, or similar devices.
  • the mass of the DMSB can be materialized, if used as a vibration control device in structures, by means of a reinforced concrete box inside which it is possible to use a high density filler, such as steel balls, barite or other to reach the target mass.
  • Other possibilities for the mass of the DMSB include the use of steel plates.
  • the mass can be materialized by any element that allows reaching the design mass of the DMSB.
  • the mass is connected to the structure, equipment or vibratory mechanism to be controlled, by means of multiple compound levers, each of which has three articulated points. It is these levers that allow to accommodate the displacements of the DMSB mass in the plane.
  • the compound levers are formed in turn by two biarticulated arms. The first one, the main arm, has at one end a pivot or articulation point anchored to the structure to be controlled. This arm, depending on the application of the DMSB, can be materialized by means of a lattice structure. At the opposite end, a second pivot point capable to move on the plane joins it with the second arm, or secondary arm.
  • the secondary arm in turn has a connection that connects it with the mass of the DMSB, by means of a pivot point capable of moving again in the plane.
  • the DMSB is shown schematically in an arbitrary deformed position.
  • the restitutive elements can be helical tension or compression springs; Belleville type disc spring assemblies; elastomeric springs; gas springs or any other element that subject to deformation restores the initial resting position of the DMSB as outlined in figure 1.
  • the dampers fulfill the function to dissipate energy and can be linear or non-linear viscous dampers; friction dampers; viscoelastic shock absorbers or any element that fulfills the function of dissipating energy.
  • Both the lever ratios and the stiffness of the springs can be adjusted in such a way that the mass of the DMSB vibrates with different frequencies according to each of its main axes. It is this feature that converts the DMSB into a bidirectional vibration control system, capable of adjusting to control two mutually perpendicular vibratory modes of different frequencies.
  • vibrations that occur in two mutually perpendicular directions.
  • these vibrations do not necessarily have the same frequency, since in general, the system to be controlled can have different dynamic properties according to each of said directions.
  • the DMSB is able to vibrate in opposition to the system to be controlled with different vibrating frequencies in its two main directions.
  • the present invention offers the possibility of adjusting these frequencies in different ways. One of these, the most direct, is simply to use restitutive elements (springs) of different rigidities in each of the two main directions of the invention, see figure 1.
  • Another alternative is to use springs of equivalent stiffness but whose location in the levers according to the X axes and the Y axis is different from each other. In this way, by means of a change in the geometric configuration, the global stiffness of the DMSB becomes different in its main directions, vibrating in this way with different frequencies in each one of them. It is also possible to use a combination of the aforementioned alternatives, ie springs of different stiffnesses and locations.
  • the vibration frequency of the DMSB is adjusted to match, or is close to, the vibration frequency of the equipment or structure in which it is located.
  • the dissipator enters into resonance oscillating in opposition to the system to be controlled thereby reducing the vibrations that occur in the latter.
  • the mass of the dissipator is subject to large displacements, which can occur according to any direction in the plane. Accommodating these displacements by means of springs and shock absorbers in a direct way is not always possible due to the restrictions in the deformations maximum that these elements are capable of supporting. That is why the present invention has a system of composite levers within which the springs and shock absorbers are installed.
  • Figure 1 shows a schematic plan view of the constituent elements of the bidirectional tuned mass dissipator based on multiple composite levers of the present invention.
  • Figure 2 shows a schematic plan view with an arbitrary deformation of the bidirectional tuned mass sink based on multiple composite levers of the present invention.
  • Figure 3 shows a schematic view of the composite levers in rest state of the composite levers of the bi-directional tuned mass dissipator based on multiple composite levers of the present invention.
  • Figure 4 shows a schematic view of the composite levers in the state of deformation of the composite levers of the bi-directional tuned mass dissipator based on multiple composite levers of the present invention.
  • the present invention relates to "bidirectional tuned mass dissipator based on multiple composite levers" (hereinafter DMSB) which corresponds to a type of tuned mass dissipator capable of simultaneously controlling two perpendicular vibrating modes whose frequencies are not necessarily equal.
  • DMSB didirectional tuned mass dissipator based on multiple composite levers
  • the mechanisms that make up the DMSB allow the mass of it to cover large displacements in any direction in the plane. These displacements typically occur when the DMSB is used to control vibrations produced by the effects of earthquakes, wind, excitations caused by rotating machinery, among others. Notwithstanding the above, the DMSB can also be used to control vibrations in smaller mechanisms or structures, such as those resulting from the passage of vehicles or excitations due to pedestrian crossing.
  • the mass (1) of the dissipator is connected to the structure (9) by means of main levers (2) and secondary levers (3).
  • the main lever (2) is connected to the structure (9) by means of a first pivot point (4).
  • the main lever (2) is connected to the secondary lever (3) by means of a second pivot (5).
  • the secondary lever (3) is connected to the ground
  • the springs (7) and the dampers (8) are connected between the mass (1) of the heatsink and the main lever (3).
  • Figure 2 shows the deformed DMSB in an arbitrary position. It is possible to observe that the mass (1) of the dissipator moves. For this, the main levers (2) and the secondary levers (3) move causing the springs (7) and shock absorbers (8) located on the left, upper and lower part of figure 2 to stretch as a result of the displacement of the mass (1) and the main levers
  • the main lever (2) and the secondary lever (3) form composite levers which are formed in turn by two Particulate arms.
  • the first of them, main arm (2) has at one end a pivot point (4) or articulation anchored to the structure (9) to be controlled.
  • a second pivot point (5) capable of traveling in the plane joins it with the second arm or secondary arm (3).
  • the secondary arm (3) in turn has a connection that connects it with the mass (1) of the DMSB, by means of a pivot point (6) able to move again in the plane.
  • the combination of the turning capabilities of the arms that make up the levers (2, 3), together with the three articulated points described (4, 5, 6), enable the mass (1) to move in the plane in any direction.
  • the DMSB is shown schematically in an arbitrary deformed position.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Power Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

L'invention concerne un dissipateur à masse syntonisée bidirectionnelle à base de multiples leviers composites (DMSB) dans lequel une masse (1) contrôle la vibration d'une structure (9), la masse (1) dudit dissipateur étant reliée à la structure (9) par des leviers principaux (2) et des leviers secondaires (3) ; le levier principal (2) étant relié à la structure (9) par un premier point pivot (4) ; le levier principal (2) étant relié au levier secondaire (3) par un deuxième pivot (5) ; le levier secondaire (3) est relié à la masse (1) par un troisième pivot (6) ; et entre la masse (1) du dissipateur et le levier principal (3) sont reliés des ressorts (7) et amortisseurs (8).
PCT/CL2018/000039 2017-12-11 2018-12-06 Dissipateur à masse syntonisée bidirectionnelle à base de multiples leviers composites WO2019113718A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CL2017003159A CL2017003159A1 (es) 2017-12-11 2017-12-11 Disipador de masa sintonizada bidireccional en base a múltiples palancas compuestas
CL3159-2017 2017-12-11

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WO2019113718A1 true WO2019113718A1 (fr) 2019-06-20

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PCT/CL2018/000039 WO2019113718A1 (fr) 2017-12-11 2018-12-06 Dissipateur à masse syntonisée bidirectionnelle à base de multiples leviers composites

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CL (1) CL2017003159A1 (fr)
WO (1) WO2019113718A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110952433A (zh) * 2020-01-13 2020-04-03 郑州大学 一种用于销接式吊索的tmd减振架
CN112253681A (zh) * 2020-09-22 2021-01-22 江苏科技大学 一种拉压式吸能缓冲装置
CN113374108A (zh) * 2021-07-07 2021-09-10 北京市建筑设计研究院有限公司 一种用于隔震层的具有双阶屈服点的金属复合消能器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109488723A (zh) * 2018-12-29 2019-03-19 东莞中子科学中心 一种粒子加速器调谐质量减振器
CN113285380B (zh) * 2021-05-24 2022-10-25 国网安徽省电力有限公司淮北供电公司 一种具有防护功能的电力自动化设备机箱

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07133844A (ja) * 1993-11-11 1995-05-23 Tatsuji Ishimaru 制振装置用てこ機構及び構造体
JPH10169707A (ja) * 1996-12-06 1998-06-26 Showa Electric Wire & Cable Co Ltd 免震装置
JPH1136664A (ja) * 1997-07-17 1999-02-09 Showa Electric Wire & Cable Co Ltd 動吸振器
JP2003056200A (ja) * 2001-08-09 2003-02-26 Univ Nihon 構造物の制振装置
CN203174801U (zh) * 2013-03-11 2013-09-04 同济大学 双向独立刚度颗粒调谐质量阻尼器
CN103541460A (zh) * 2013-11-08 2014-01-29 同济大学 新型调谐颗粒质量阻尼器
CN106988592A (zh) * 2017-04-06 2017-07-28 东南大学 一种摆动式调谐质量阻尼器装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07133844A (ja) * 1993-11-11 1995-05-23 Tatsuji Ishimaru 制振装置用てこ機構及び構造体
JPH10169707A (ja) * 1996-12-06 1998-06-26 Showa Electric Wire & Cable Co Ltd 免震装置
JPH1136664A (ja) * 1997-07-17 1999-02-09 Showa Electric Wire & Cable Co Ltd 動吸振器
JP2003056200A (ja) * 2001-08-09 2003-02-26 Univ Nihon 構造物の制振装置
CN203174801U (zh) * 2013-03-11 2013-09-04 同济大学 双向独立刚度颗粒调谐质量阻尼器
CN103541460A (zh) * 2013-11-08 2014-01-29 同济大学 新型调谐颗粒质量阻尼器
CN106988592A (zh) * 2017-04-06 2017-07-28 东南大学 一种摆动式调谐质量阻尼器装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110952433A (zh) * 2020-01-13 2020-04-03 郑州大学 一种用于销接式吊索的tmd减振架
CN112253681A (zh) * 2020-09-22 2021-01-22 江苏科技大学 一种拉压式吸能缓冲装置
CN113374108A (zh) * 2021-07-07 2021-09-10 北京市建筑设计研究院有限公司 一种用于隔震层的具有双阶屈服点的金属复合消能器

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