WO1992002743A1 - Dispositif amortisseutr de vibrations - Google Patents

Dispositif amortisseutr de vibrations Download PDF

Info

Publication number
WO1992002743A1
WO1992002743A1 PCT/JP1990/001022 JP9001022W WO9202743A1 WO 1992002743 A1 WO1992002743 A1 WO 1992002743A1 JP 9001022 W JP9001022 W JP 9001022W WO 9202743 A1 WO9202743 A1 WO 9202743A1
Authority
WO
WIPO (PCT)
Prior art keywords
suspension
weight
pendulum
frame
vibration
Prior art date
Application number
PCT/JP1990/001022
Other languages
English (en)
Japanese (ja)
Inventor
Hisanori Abiru
Kazumi Tamura
Takeji Matsumoto
Hideaki Harada
Manabu Fujishiro
Original Assignee
Mitsubishi Jukogyo Kabushiki Kaisha
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 Mitsubishi Jukogyo Kabushiki Kaisha filed Critical Mitsubishi Jukogyo Kabushiki Kaisha
Priority to PCT/JP1990/001022 priority Critical patent/WO1992002743A1/fr
Publication of WO1992002743A1 publication Critical patent/WO1992002743A1/fr

Links

Classifications

    • 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
    • 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
    • E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping 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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect

Definitions

  • the present invention relates to a vibration control device (Dynamic ⁇ Dano, ⁇ ) applied to the vibration control of tower-like structures (pylons, observation towers, etc.) and high-rise buildings.
  • a vibration control device Dynamic ⁇ Dano, ⁇
  • tower-like structures pylons, observation towers, etc.
  • Fig. 12 it is composed of a weight 1, a hanging member 2, a damper 8, and a spring 9 which can be attached as required. However, it was directly attached to the structure 7. In other words, in the case of single suspension (single-stage suspension), the period was adjusted by changing the length of the suspended material.
  • reference numeral 71 denotes a vibrating body.
  • the vibrating body 71 is suspended from a suspension frame 73 by a suspension member 79 having no bending rigidity. Further, the suspension 73 is suspended by the structure 74 by the suspension member 79 having no bending rigidity.
  • a damper 76 is interposed between the structure 74 and the lower end section of the suspension frame 73, and the vibrating body 71 and the lower end section of the suspension frame 73. Lower end of the above structure 74 and suspension frame 7 3 A spring 77 was interposed between the gate, the vibrating body 71 and the lower end of the suspension frame 73 as necessary.
  • the vibration of the structure 74 is transmitted to the vibrator 71 via the damper 76, the spring 77, and the suspension frame 73.
  • the vibration is transmitted and the vibrating body 71 vibrates.
  • the vibration of the structure 74 is suppressed by the vibration of the vibrating body 71.
  • the point of action of the damper and the spring is located at the bottom of the suspension member 79, so the vibrator and the suspension frame are large. Vibrating. For this reason, the damper 76 and the spring 77 need to have a large stroke.
  • an oil damper used for a conventional vibration damping device generally has a speed proportional damping force characteristic. there were .
  • the present invention solves the problems described below and provides a vibration damping device for a compact tower-like structure, a high-rise building, and the like, and further provides a damper having a small stroke.
  • An object of the present invention is to provide a vibration damping device using a vibration damping member such as a spring.
  • the length of the pendulum (the length of the hanging material) becomes longer, and the problem of space (particularly in the vertical direction) is reduced.
  • the length of a pendulum with a period of 6 seconds is about 9 m, and for a normal high-rise building, a height of three stories is required. Therefore 3 It is necessary to crush the space corresponding to the floor in order to install the damping device.
  • the period of the pendulum is adjusted by changing the length of the hanging material.However, changing the length of the hanging material is not the same as changing the length of the hanging material. You have to prepare a lot of different hanging materials. And it takes a lot of time and effort to replace it. Also, it is difficult to fine-tune the period of the pendulum.
  • the weight of the pendulum type vibration damping device is hung by the hanging material, and if the hanging material breaks and the weight falls down In some cases, the floor may be severely impacted and the floor may be broken. In addition, most of the weight of the pendulum type vibration damper is concentrated on the weight, and the weight is held when the vibration damper is installed or when the maintenance is performed. Chige
  • a conventional dynamic damper that has a damping force characteristic of a general speed proportional type, a dynamic damper that uses a ', installs the weight amplitude and that The ratio of the obtained structure amplitudes is constant irrespective of the magnitude of the amplitude. Also, the larger the ratio between the weight amplitude and the structure amplitude, the greater the damping effect.
  • the vibration damping device of the present invention has the following features.
  • an upper suspension is provided between the mounting frame and the gate.
  • a connecting material for joining the upper hanging frame and the lower hanging frame, and to hang the ⁇ -weight forward in multiple stages.
  • the upper suspension frame and the lower suspension frame are formed in a quadrilateral, and the upper suspension frame and the lower suspension frame are connected by four joints.
  • the mounting angle of the lower hanging frame quadrilateral with respect to the upper hanging frame quadrilateral has been changed so that the hanging materials do not overlap.
  • the vibration damping device of the means (2) is characterized in that a spring for adjusting the frequency of the pendulum is provided between the suspension frames.
  • the vibration control device of the above-mentioned means (2) is characterized in that the vibration control device is installed between the dambor and the suspension frame.
  • a spring for adjusting the frequency of the pendulum and a damper are provided between the suspension frames.
  • the vibration damping device according to the above means ⁇ ) is characterized in that a hanger horizontal support device for adjusting the frequency of the pendulum is provided.
  • a foot for lowering the impact when the weight falls and a jack for maintenance are provided at the lower part of the weight. It is characterized by having a device.
  • a slide jig is installed between the end of the hanging material and the hanging frame and the weight, and the position of the hanging point is determined.
  • the length of the pendulum is changed by the turnbuckle attached to the hanging material, and the period of the pendulum is adjusted.
  • a suspension mechanism shall be installed on the suspension frame, and a turnbuckle shall be installed on the suspension material.
  • the feature of this is that the length of the pendulum is changed, and the period of the pendulum is adjusted.
  • AO a structure in which vibration is suppressed, a plurality of first hanging members having bending rigidity, one end of which is supported by the structure to be rotatable; and A suspending frame supported at the other end of the suspending member in a rotationally self-supporting manner; one end of the suspending frame is supported in the rotating self-supporting manner, and the other end is pivotally supported by the vibrating body.
  • Vibration of the structure is transmitted to the vibrating body via the suspension and the suspension frame.
  • it is necessary to attach a variable stroke device between the structure and the suspension and the suspension and the suspension frame at a position near the suspension point. This is what we did.
  • the vibration damping device of the present invention configured as described above has the following operation.
  • each pendulum of an n-stage suspended pendulum is about 1 / n that of a conventional pendulum.
  • the suspended material below the gripped part is independent of the length of the pendulum and suspended above the gripped part.
  • the length of the rebar is the effective pendulum length.
  • Adjusting the length of the hanging material changes the length of the pendulum. At the same time, by extending and contracting the suspension frames, it is possible to avoid contact between the suspension frames and irregularities in the installation positions of the suspension frames.
  • the damping force is proportional to the square of the speed.
  • the dynamic damping factor increases, and as the structure amplitude increases, the dynamic damper becomes heavier.
  • the ratio of the weight amplitude to the structure amplitude decreases, and the amplitude of the weight of the dynamic damper can be suppressed.
  • FIG. 1 is a diagram showing a first embodiment of the present invention.
  • FIG. 2 is a diagram showing a second embodiment of the present invention
  • FIG. 3 is a diagram showing a third embodiment of the present invention.
  • FIG. 4 is a diagram showing a fourth embodiment of the present invention.
  • FIG. 5 to FIG. 7 show a fifth embodiment of the present invention.
  • FIG. 8 is a diagram showing a sixth embodiment of the present invention.
  • FIG. 9 is a diagram showing a seventh embodiment of the present invention.
  • FIG. 10 to FIG. 11 are views showing an eighth embodiment of the present invention.
  • FIG. 12 Ru Oh a diagram showing a conventional apparatus.
  • FIG. 13 is a diagram showing a structure of a vibration damping device according to a ninth embodiment of the present invention.
  • FIG. 14 is a diagram showing a state in which the vibration damping device is operated
  • FIG. 15 is a configuration diagram showing a tenth embodiment of the present invention
  • Fig. 16 is a diagram showing the structure of a problematic vibration damping device.
  • ⁇ Fig. 17 is a side view of the eleventh embodiment of the present invention.
  • Fig. 18 is the same plan
  • Figure 19 shows the relationship between building amplitude and weight amplitude, and the relationship between building amplitude and building decay.
  • FIG. 21 to FIG. 25 are views showing other embodiments of the present invention.
  • FIG. 1 shows a first embodiment of the present invention. It has a three-stage, two-point suspension structure, and controls vibration in one direction (the X-axis direction in Fig. 1).
  • Fig. 1 is a weight
  • 2, 3 and 4 are hanging materials
  • 5 and 6 are upper hanging frames
  • 5a and 6a are connecting materials
  • 5 'and 6' are lower hanging materials.
  • 7 indicates a structure (mounting frame)
  • 8 indicates a dam
  • 9 indicates a spring.
  • the weight 1 is suspended by the suspending member 2 and the upper suspending frame 5.
  • the upper suspending frame 5 is in a horizontal state.
  • a highly rigid connecting member 5a protruding downward from both ends of the upper suspension frame 5 and a lower suspension frame 5 'are provided.
  • the lower suspension frame 5 ′ is suspended by the suspension member 3 and the upper suspension frame 6.
  • the upper suspension frame 6 is in a horizontal state.
  • a connecting member 6a protruding downward from both ends of the upper suspension frame 6 and a lower suspension member 6 'can be provided.
  • the lower suspension member 6' is a suspension member 4 and is attached to the structure (mounting frame) 7. It is suspended.
  • the height of the hanging material mounting part of the connecting materials 5a and 6a should be almost the same as the mounting point of the hanging material 2 with respect to the weight 1, and the hanging materials 2, 3, 4
  • the upper suspension frames 5 and 6 restrict the movement in the y-axis direction perpendicular to the X2 plane in Fig. 1 so that the z-components overlap each other. (Not shown). Assuming now that the lengths of the hanging members 2, 3, and 4 are £ ',-' £ 3, the period T of the first embodiment is
  • the length of each pendulum is 4 m or less, and the length of the pendulum can be reduced to half or less of the conventional 9 m. Therefore, if the floor height of the floor on which the vibration damping device is installed is 9 m in the conventional type, it can be reduced to 4 mm.
  • Fig. 2 shows a second embodiment of the present invention in the case of a three-stage four-point suspension.
  • the suspension members 2, 3, 4 and the upper suspension frames 5, 6 are combined by shaking 45 '.
  • the levels of the suspension frames 5 and 6 are arranged in the same horizontal plane, so that the required space in the height direction is kept small.
  • the device according to the second embodiment functions as a damper for vibrations in any direction of 360 'in a plane.
  • the period T of the device of the second embodiment is also expressed by equation (1), where the lengths of the hanging members 2, 3, and 4 are £ ⁇ ;:, £ 3.
  • the period of the pendulum in Fig. 2 is 6.02 seconds according to equation (1). This is the same as the period of a 9 m long pendulum of a normal single suspension. In this way, the length of the pendulum, which previously required a length of 9 m, can be reduced to 1/3 of 3 m by dividing it into three.
  • FIG. 3 shows a third embodiment of the present invention, which is a three-stage four-point suspension system having a spring.
  • the suspension members 2, 3, 4 and the upper suspension frames 5, 6 are swung by 45 '(Fig. 3 (b)).
  • the level of the rims 5 and 6 are arranged in the same horizontal plane to minimize the required space in the height direction.
  • the device according to the third embodiment functions as a damper for vibrations in any direction of 360 'in the plane, and adjusts the frequency in each direction.
  • suspension frames 5 ', 6' and weight 1 Springs 9 and 10 are installed between them.
  • T x and T y are as follows. 0 102 X 980
  • FIG. 4 shows a fourth embodiment of the present invention, which is a three-stage, four-point suspension system having a spring and a damper.
  • the device of the fourth embodiment functions as a damper for vibrations in any direction of 360 in the plane, and adjusts the frequency in each direction.
  • I5 springs 9 and 10 are installed between the lower suspension frames 5 'and 6' and the weight 1 for the purpose of I5.
  • dangnos, ⁇ 8 and 11 are installed between the lower suspension frames 5 'and 6' and the weights.
  • 5 to 7 show a fifth embodiment of the present invention.
  • Fig. 5 (a) shows an example of a two-stage suspension, weight 1 and suspensions 2 and 3, suspension frame 5 and horizontal support bracket 14 for suspension, and way. It consists of a support that protrudes from g.
  • the hanging member horizontal support brackets 14 are the same as shown in Fig. (B).
  • the hanging members 2 and 3 are plural, the same. It is supported as shown in Fig. (C), and the other end is supported by a support base 12 or a suspension frame 5 so as to be able to move up and down by bolts.
  • the hanging member is fixed to the bolt 15 via the metal fittings 16, 17 or 18, 19, 20, 21.
  • the hanging members 2 and 3 may be completely fixed to the bracket 14, or may be supported only in the horizontal direction, and may be free (not supported) in the vertical direction. .
  • Fig. 6 shows that the horizontal supports 14 of the hanging members shown in Fig. 5 are divided into two steps, and the period of the pendulum in two directions (X, Y directions) in the plane can be adjusted separately. This is what we did.
  • FIG. 6 (a) shows only the hanging member 2 and the metal fitting 14 in FIG. 5, and the metal fitting 14 is connected to the X direction as shown in FIG. 5 (a).
  • Figure (b) shows the X direction X14, which is free to swing in the X direction but free to swing in the Y direction.
  • (C) is the Y direction Y14, which is free in the Y direction but restricted in the X direction.
  • the pendulum By attaching the hanging member horizontal support bracket 14 as shown in Fig. 5 to restrain the horizontal displacement of the hanging members 2 and 3, the pendulum is shown in Fig. 7. Vibration like this. That is, The length of the hanging members 2 and 3 above the bracket 14 is the effective length of the pendulum, and the period of the pendulum corresponding to the length can be obtained.
  • FIG. 7 shows the movement of only the weight 1, the movement of the suspension frame 5 with respect to the structure 7 in FIG. 5 is also the same.
  • FIG. 8 shows a sixth embodiment of the present invention.
  • Two-stage swing .
  • a weight 1 hanging members 2 and 3
  • a hanging frame 5 legs 34
  • a jacket 35 The suspension frame is composed of an upper suspension frame, a lower suspension frame, and a connecting member.
  • FIG. 9 shows a seventh embodiment of the present invention.
  • This figure constitutes a double-suspended pendulum, and the weight 1 and the hanging members 15, 2 and 3, the hanging frame 5, and the length of the hanging members are changed. It is composed of a hook 44 and a slide jig 45 between the hanging material end, the weight and the hanging frame.
  • the slide jig is fixed to the weight and the suspension frame by the bolt 46, but the slide jig is fixed to the weight and the suspension frame.
  • the fixing position can be changed according to the length (£) of the hanging material. I can do it.
  • the jig for changing the length of the hanging material and the jig for the slide portion are provided in this embodiment if they have the function. It is not limited.
  • variable length is almost the same, and if the length of the hanging material () is set to the measurement surface length, it is set so that it becomes 1/2 of the variable length. Combing is also short, and combing is also possible. In other words, when changing the period of the pendulum to a long period, the turn knocker 44 is extended so that (£) becomes longer, and the extended amount is used. Lower the jig 45. Conversely, when changing to the shorter cycle side, shorten the turnbuckle 44 to shorten (£) the power and increase the slide jig 45 by the reduced amount. Thus, the cycle can be adjusted without changing the suspension height (L) of the weight and the suspension frame.
  • FIG. 10 to FIG. 11 show an eighth embodiment of the present invention.
  • Fig. 10 (a) shows a two-stage suspended pendulum, with weight 1, suspension members 2 and 3, suspension frames 5 and 6, turn knob 54 and extension. It consists of a retractable slide mechanism 55.
  • the tenth (b) shows an example in which the period of the pendulum is shortened, and when the length of the hanging members 2 and 3 is shortened by the use of the knocker 54, The case where the length of the suspension frame is shortened by the slide mechanism 55 is shown.
  • Fig. 10 (c) shows an example in which the period of the pendulum is lengthened, and when the length of the hanging members 2 and 3 is increased by the turn-knocking hole 54, The case where the length of the suspension frame is increased by the slide mechanism 55 is shown.
  • the turn knocker 54 of the suspension members 2 and 3 may be a normal turn back knob 44.
  • the slide mechanism for suspension frames 5 and 6 has a length adjustment Any mechanism that allows adjustment is fine.
  • Fig. 11 shows one example.
  • Fig. 11 (a) shows that the upper member 56 and the lower member 57 of the suspension frame can be engaged in a sheath shape, and the bolt holes 58 and 59, which have been drilled in advance, are 5 bolts. This is an example in which 60 are combined.
  • Fig. 11 (b) shows the same way that the upper and lower members of the suspension frame can be engaged in a sheath, and they are installed outside (bolts in this figure) and bolted. This is an example.
  • FIGS. 13 to 15 another set of fruits of the present invention.
  • a vibration damping device according to the embodiment will be described.
  • 71 is a weight.
  • the weight 71 is vibrated in order to suppress the vibration of the structure 74.
  • Both ends of this weight 71 are one ends of a bending-rigid hanging member 72 ′, and can be rotated in any direction by the vision joint 75. Supported.
  • the other end of the hanging member 72 ′ is supported by a suspension frame 73 by a pinion 75 in a moving manner.
  • the suspension frame 73 has a U-shape, and absorbs the vibration energy of the structure 74 between the vicinity of the other end of the suspension member 72 ′ and the suspension frame 73.
  • a damper 76 and a spring 7 are provided to determine the frequency of the pendulum as required.
  • both ends of the suspension frame 73 are one ends of suspension members 72 having bending rigidity, and the movement of the suspension frame 73 is performed in all directions by the binding 75. Supported by. Further, the other end 5 of the hanging member 72 is supported by the structure 74 by the vision point 75. A damper 76 for absorbing vibration energy of a structure 74 and, if necessary, a vibration between the vicinity of the other end of the suspension member 72 and the suspension frame 73. 77 The spring 77 for determining the wave number is interposed.
  • a vibration exciter 78 operated by automatic control is provided with a structure 74, a suspension member 72, and a suspension frame 73. This is an example in which it is arranged between hanging members 72 '. According to this other embodiment, even when the st zo stroke of the vibrator 78 is small, it is possible to give the weight 71 a large amplitude. In other words, by detecting the vibration of the structure 74 and controlling the stroke of the vibrator 78, the vibration of the structure 74 is reduced by the vibration energy of the weight 71. To reduce the amount of water absorbed.
  • FIGS. 17 to 25 another alternative to the present invention is shown. A set of embodiments of a damping device is described.
  • FIG. 17 is a side view of one embodiment of the present invention
  • FIG. 18 is a plan view thereof.
  • 81 is the weight
  • 82 is the installation floor
  • 83 is the hydrostatic bearing or stove
  • 84 is the link 5
  • 85 is the universal surge.
  • reference numeral 86 denotes a vision point
  • reference numeral 87 denotes a reaction wall
  • reference numeral 88 denotes a spring
  • reference numeral 89 denotes an oil reservoir
  • reference numeral 81 denotes an installation floor.
  • a weight that is mounted on the base 82 via a hydrostatic bearing or stove 83, and two links 84 are provided between the weight 81 and the installation floor 82. , 0 It can be mounted via a joint 85 and a joint 86.
  • reaction wall 87 erected and fixed on the installation floor 82 is connected to the link 84, and a spring 88 and an oil member 89 are connected to each other.
  • the speed is proportional to the square of the speed.
  • oil dams which are the damping characteristics of molds, the relationship between building amplitude and weight amplitude, and the relationship between building amplitude and damping effect (damping effect) on buildings.
  • This example aims to reduce the amplitude (several on) of a building generated by winds that normally blow about 10 to 20 m, and to improve the livability, and the building amplitude is 10 cm.
  • the amplitude of the plumb bob is linearly B and zB up to about 12 cm. At 12 cm the weight amplitude is about 60 cm. This Above, the ratio of the weight amplitude to the building amplitude starts to decrease, and when the building amplitude is 100 ci (corresponding to the amplitude during a large earthquake), the weight amplitude is suppressed to about 160 cm.
  • the effect of the decay on the building was about 4.5% up to a building amplitude of 12 cm5, but decreased to about 2.2%, about 2.2% at a building amplitude of 100 ci. .
  • the reaction force is applied by hitting the sto-no to the building. The extinction effect is secured, though only half, compared to the adverse effects of adding
  • I 0 is a great advantage.
  • the weight mass amplitude becomes 500 cm (the same as the ratio up to a building amplitude of 12 ⁇ ). )
  • 1000 cn becomes 10 * immediately, making it impossible to design in practice. For this reason, it is necessary to reduce the amplitude for 1 second, so that a large reaction force is applied to the building, and it will exert a bad shadow. become .
  • a general speed proportional type oil chamber has a certain speed level V. , The flow rate through the valve begins to be restricted, and automatically becomes proportional to the velocity squared.
  • Fig. 21 shows the case of single pendulum type
  • Fig. 22 shows the case of multiple pendulum type
  • Fig. 23 shows the case of tilted pendulum type
  • Fig. 24 shows the case of inverted pendulum type
  • Fig. 25 Are examples in which a spring and an oil member are directly attached to the weight, and the operation s and the effect are the same as those described above.
  • 91 indicates a weight
  • 92 indicates a hanging rod or cable
  • 93 indicates an oil chamber
  • 94 indicates a ceiling
  • 95 indicates a reaction wall.
  • 22 have you in FIG, 101 weight, 102 suspended Ri bar or to case b le, 103 Oh Lee Noreda down Roh, -, 104 ceiling 105 0 Hanchikarakabe, 106 full-les chromatography
  • 111 is the weight
  • 112 is the rod
  • 112 is the oil chamber
  • 114 is the wall
  • 115 is the reaction wall
  • 121 is a weight
  • 122 is a rod
  • 123 is an oil nose
  • 124 is a floor
  • 125 is a reaction wall
  • 126 is a spring.
  • Reference numeral 131 denotes a weight
  • 132 denotes an opening
  • 133 denotes an oil nose
  • ⁇ 134 denotes a floor
  • 135 denotes a reaction wall
  • 136 denotes a spring.
  • the speed level at which the above-mentioned square characteristic is obtained is very small, and in an extreme case, it is possible to set the speed level to zero, so that the square characteristic is obtained over the entire speed range. .
  • the required pendulum length is divided into short lengths, so that the total height of the pendulum can be reduced by multi-stage suspension. I can do it.
  • the cycle of the multi-stage suspended vibration damper can be calculated as a normal pendulum having a length obtained by simply adding the lengths of the above-mentioned divided pendulums. Therefore, in comparison with the conventional vibration damping device, the height required to obtain the same cycle as the conventional type can be reduced in the multi-stage suspension vibration damping device. Yes (the greater the number of divisions, the smaller the overall height).
  • the stroke of the damper as an attenuator is lZn in the case of n-stage suspension, as compared with the conventional pendulum.
  • the length of the pendulum can be freely adjusted by moving the position of the horizontal support bracket of the hanging member.
  • the jacket 35 loaded on the legs 34 makes it possible to easily lift the Eight 1 so that installation and maintenance can be performed smoothly. ⁇ No.
  • the weight of the legs 34 and the jacks 35 attached to the lower part of the weight 1 can be counted as a part of the weight of the weight 1.
  • the length of the hanging material is changed by the turn knocking and the length of the hanging frame is changed by the sliding mechanism. The period can be adjusted.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

L'invention se rapporte à un dispositif amortisseur de vibrations (du type dynamique), destiné à l'amortissement des vibrations dans des structures du type tours et autres bâtiments à nombreux étages, et plus particulièrement à un dispositif amortisseur de vibrations du type pendulaire qui comprend un poids (1), un ressort (9), un organe amortisseur (8), des éléments de suspension (2, 3 4) et un cadre de montage (7), et qui se caractérisent en ce que les cadres de suspension supérieurs (5, 6) et les cadres de suspension inférieurs (5', 6') constitués chacun par un quadrilatère sont disposés entre le cadre de montage (7) et le poids (1), en ce que les cadres de suspension supérieurs (5, 6) et les cadres de suspension inférieurs (5', 6') sont soutenus par quatre bras (5a, 5b), de façon à ce que la suspension du poids (1) se fasse par étapes, et en ce que les angles de montage des quadrilatères des cadres de suspension inférieurs ne sont pas égaux à ceux des quadrilatères des cadres de suspension supérieurs, pour éviter que les éléments de suspension (2, 3 4) ne se chevauchent. L'invention décrit également un tel dispositif amortisseur de vibrations, qui est conçu pour un système amortisseur du type dynamique constitué d'un système vibratoire et d'un organe amortisseur à huile (8) et qui se caractérise en ce qu'il utilise un type d'organe amortisseur à huile (8) dont la force d'amortissement est proportionnelle au carré d'une vitesse dépassant un certain niveau de vitesse.
PCT/JP1990/001022 1990-08-10 1990-08-10 Dispositif amortisseutr de vibrations WO1992002743A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1990/001022 WO1992002743A1 (fr) 1990-08-10 1990-08-10 Dispositif amortisseutr de vibrations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1990/001022 WO1992002743A1 (fr) 1990-08-10 1990-08-10 Dispositif amortisseutr de vibrations

Publications (1)

Publication Number Publication Date
WO1992002743A1 true WO1992002743A1 (fr) 1992-02-20

Family

ID=13986671

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1990/001022 WO1992002743A1 (fr) 1990-08-10 1990-08-10 Dispositif amortisseutr de vibrations

Country Status (1)

Country Link
WO (1) WO1992002743A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004007990A1 (fr) 2002-07-10 2004-01-22 Guido Tschopp Glissiere a retour au point zero
CN100396861C (zh) * 2006-03-03 2008-06-25 北京工业大学 悬吊式调谐质量阻尼器减振控制装置
WO2018099896A1 (fr) * 2016-11-29 2018-06-07 Burkhard Dahl Pendule à masse ellipsoïdal spatial compact
CN110424563A (zh) * 2019-08-12 2019-11-08 哈尔滨工业大学（深圳） 一种多功能可拓展模块的振动控制阻尼器
WO2020001719A1 (fr) * 2018-06-29 2020-01-02 Vestas Wind Systems A/S Unité d'amortissement pour structure de tour
CN112900408A (zh) * 2021-02-03 2021-06-04 郝效祖 一种工程监理用探钎机
WO2023227182A1 (fr) * 2022-05-25 2023-11-30 Engiso Aps Amortisseur de suspension à étages multiples pour amortir une structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934041A (ja) * 1982-08-13 1984-02-24 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン 振動緩衝装置
JPS624939A (ja) * 1985-07-02 1987-01-10 Nippon Kokan Kk <Nkk> ２節振子式動吸振器
JPS6231735A (ja) * 1985-08-05 1987-02-10 Nippon Kokan Kk <Nkk> ２節振子式動吸振器
JPH01131353A (ja) * 1987-11-12 1989-05-24 Ishikawajima Harima Heavy Ind Co Ltd 振子式動吸振器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934041A (ja) * 1982-08-13 1984-02-24 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン 振動緩衝装置
JPS624939A (ja) * 1985-07-02 1987-01-10 Nippon Kokan Kk <Nkk> ２節振子式動吸振器
JPS6231735A (ja) * 1985-08-05 1987-02-10 Nippon Kokan Kk <Nkk> ２節振子式動吸振器
JPH01131353A (ja) * 1987-11-12 1989-05-24 Ishikawajima Harima Heavy Ind Co Ltd 振子式動吸振器

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004007990A1 (fr) 2002-07-10 2004-01-22 Guido Tschopp Glissiere a retour au point zero
CN100396861C (zh) * 2006-03-03 2008-06-25 北京工业大学 悬吊式调谐质量阻尼器减振控制装置
US11255395B2 (en) 2016-11-29 2022-02-22 Burkhard Dahl Compact spatial ellipsoidal mass pendulum
WO2018099896A1 (fr) * 2016-11-29 2018-06-07 Burkhard Dahl Pendule à masse ellipsoïdal spatial compact
WO2020001719A1 (fr) * 2018-06-29 2020-01-02 Vestas Wind Systems A/S Unité d'amortissement pour structure de tour
CN112313409A (zh) * 2018-06-29 2021-02-02 维斯塔斯风力系统有限公司 塔结构的阻尼器单元
CN112313409B (zh) * 2018-06-29 2023-08-18 维斯塔斯风力系统有限公司 塔结构的阻尼器单元
US11560878B2 (en) 2018-06-29 2023-01-24 Vestas Wind Systems A/S Damper unit for a tower structure
CN110424563A (zh) * 2019-08-12 2019-11-08 哈尔滨工业大学（深圳） 一种多功能可拓展模块的振动控制阻尼器
CN110424563B (zh) * 2019-08-12 2021-05-18 哈尔滨工业大学（深圳） 一种多功能可拓展模块的振动控制阻尼器
CN112900408B (zh) * 2021-02-03 2022-02-18 郝效祖 一种工程监理用探钎机
CN112900408A (zh) * 2021-02-03 2021-06-04 郝效祖 一种工程监理用探钎机
WO2023227182A1 (fr) * 2022-05-25 2023-11-30 Engiso Aps Amortisseur de suspension à étages multiples pour amortir une structure

Similar Documents

Publication Publication Date Title
EP3976906B1 (fr) Amortisseur à masse pendulaire
CN208329288U (zh) 一种建筑幕墙支撑结构
WO1992002743A1 (fr) Dispositif amortisseutr de vibrations
US4303164A (en) Structure for damping the oscillation of building cranes
JP2005207521A (ja) 制振装置
JP2003278827A (ja) 塔状構造物制振装置
JPH058966A (ja) 昇降機のテールコードの制振装置
CN106677053B (zh) 一种用于钢箱梁桥的主梁
JP2019086125A (ja) 吊り物制振構造
JPH0310817B2 (fr)
JPH02289770A (ja) 制振装置
JPH0227070A (ja) 建物の制振装置
JP2003336683A (ja) 制振装置における制振体の固有振動数設定方法
JP2010183993A (ja) 什器または機器類の吊り免震構造
WO2023058251A1 (fr) Dispositif d&#39;isolation sismique de table et de dispositif de suspension
CN217501086U (zh) 一种高层建筑混凝土浇筑施工简易布料装置
JPH0416680A (ja) 制振装置
JPS59103048A (ja) 振り子式動吸振器
JP2009168248A (ja) 制振装置における制振体の固有振動数設定方法及び装置
JP2512957Y2 (ja) 構造物制振装置
JP2001140496A (ja) 超高層建物の吊り制震方法及び吊り制震構造
JP2021195976A (ja) 動吸振装置
JP2003294083A (ja) 免震装置
JP2009191601A (ja) 屋根架構の耐震補強構造
JPH09165186A (ja) パネル吊下げ装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE

NENP Non-entry into the national phase

Ref country code: CA