CN103628586A - Magneto-rheological semi-active rolling type mass pendulum damper - Google Patents
Magneto-rheological semi-active rolling type mass pendulum damper Download PDFInfo
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- CN103628586A CN103628586A CN201310591043.7A CN201310591043A CN103628586A CN 103628586 A CN103628586 A CN 103628586A CN 201310591043 A CN201310591043 A CN 201310591043A CN 103628586 A CN103628586 A CN 103628586A
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- rail wheel
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- rolling
- rubber pad
- magnetorheological
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Abstract
The invention provides a magneto-rheological semi-active rolling type mass pendulum damper, and belongs to the field of structural vibration control in civil engineering. The magneto-rheological semi-active rolling type mass pendulum damper comprises a magneto-rheological track device, a rolling shaft and balancing weights. The track is a circular arc-shaped track, the balancing weights are connected through the rolling shaft and move in a reciprocating mode along the track, and therefore the purposes of energy dissipation and vibration attenuation are achieved. A closed magneto-rheological device is arranged inside a slideway according to the design, an external power source is used for adjusting magneto-rheological fluid properties to control rolling resistance of the rolling shaft inside the track, and then rolling angles and rolling speeds of the rolling shaft are controlled. The magneto-rheological semi-active rolling type mass pendulum damper is applicable to flexible structures and high-rise structures of civil engineering structures, breaks the limit that rolling mass damper control force is uncontrollable, and is low in power dissipation and high in force output; semi-active control over the rolling tuning mass pendulum damper can be realized only through a small number of currents.
Description
Technical field:
The invention belongs to the vibration isolation field of civil engineering, specifically, be by the magnetorheological system of balance staff, to control radial motion speed and the pendulum angle of quality pendulum, thereby regulate half ACTIVE CONTROL damper of control.
Background technology:
Tuning quality pendulum damper device (Pendulum Tuned Mass Dampers is called for short PTMD), is with a wide range of applications because it controls the respond well increasing approval that obtained as a kind of passive energy dissipation device.Tuning quality pendulum damper device divides two kinds: suspension PTMD and rail mounted PTMD.Suspension PTMD is suspended to controlled structures top by messenger wire for balancing weight (suspension rod), and balancing weight is done single pendulum back and forth movement along the track of circular arc.Damper requirement messenger wire or the length of boom of this form are larger, and space availability ratio is lower.Mass is suspended on controlled structures, once suspended structure lost efficacy, the large mass falling will destroy structure generation, cause potential safety hazard.Rail mounted PTMD is placed on mass on arc-shaped rail, and when vibrations occur structure, mass moves reciprocatingly along arc orbit.Comparatively speaking, rail mounted regulates wobble quality damper space availability ratio high, and more safe and reliable.
The vibration attenuation mechanism of PTMD is: controlled structures is during to a lateral movement, and balancing weight is because the effect of the inertia rightabout to structure motion swings, and to structure, applies the control with reverse movement direction, thereby reaches the effect of passive energy dissipation.Research shows, under optimal control parameter, PTMD damper can reduce that main body controlled structures wind shakes or earthquake response reaches more than 50%, in Transmission Tower System, TV transmission tower, highrise building, has wide practical use.
Traditional rail mounted PTMD is mainly comprised of balancing weight, track.For traditional PTMD, there is following problem: (1) is when controller moves, the damping of controller can not regulate, and the damping of PTMD is higher than controlled structures conventionally, so tend to occur such phenomenon: when dynamic excitation stops, structural vibration decays, but PTMD is still at reciprocally swinging, force structure to continue vibration, make to control effect proper that it is anti-.(2) in traditional PTMD swing process, control cannot regulate, and can not regulate in real time control according to external drive and architectural characteristic, reaches optimal control results.If PTMD can regulate in real time swing speed and amplitude of fluctuation according to the difference of the external drive of feedback in resisting the process that earthquake and wind shakes, reach the effect that regulates control, will address the above problem, make PTMD give play to optimum performance.
Summary of the invention
In order to solve the problems referred to above of PTMD, the invention provides a kind of magnetorheological half active tumbling-type quality pendulum damper device, by support, balancing weight, roller bearing and magnetorheological control track form; Two support vertical symmetries that structure is identical are fixed on building, are furnished with the magnetorheological control track of upper curved arc on each support; Annular balancing weight is fixed on the centre of roller bearing through roller bearing; The two ends of roller bearing are fixed with rail wheel; Roller bearing is arranged on the magnetorheological control track of both sides by rail wheel level.
Magnetorheological control track is comprised of support, rail wheel, magnetic flow liquid, magnet exciting coil, diaphragm seal, sealing rubber pad, rubber seal and seal cover; Support has penetrating curved deep-slotted chip breaker, and the size of arc sealing rubber pad is a bit larger tham the deep-slotted chip breaker on support, arc sealing rubber pad from the outside of support by the airtight bonding of the deep-slotted chip breaker support; Sealing rubber pad is hollow, and both ends open; In the middle of sealing rubber pad, in lowest segment, locate to have penetrating arc chute; The length of chute is less than half length of diaphragm seal; Arc diaphragm seal and the same radian of sealing rubber pad inner chamber; Solid metal diaphragm seal is inserted in the inner chamber of sealing rubber pad; Diaphragm seal can slide along arc in sealing rubber pad; The middle segmental arc of diaphragm seal has a circular opening; In the middle of rail wheel, thin two ends are thick; In the middle of diaphragm seal, hole is a bit larger tham the thin axle of rail wheel, is less than the thick axle at rail wheel two ends; The thin shaft length of rail wheel is a bit larger tham the thickness of diaphragm seal; The thin axle of rail wheel is stuck in the middle hole of diaphragm seal; The internal diameter of rubber seal is adjacent to the thin axle of rail wheel, and fixing seal is bonded on diaphragm seal, and the outside dimension of rubber seal is less than the width of chute.Seal cover covers the region at sealing rubber pad place in the outside of support, make to form closed area between seal cover and support; In closed area, interval is fixed wtih two magnet exciting coils, and two magnet exciting coils interconnect with wire, and wire outsourcing is with insulated hull; Magnetic flow liquid is filled in the enclosure space of rail wheel motion.
Sleeve and roller bearing are fixed on the both sides of balancing weight with the form of thread, in order to control moving axially of balancing weight.
Between roller bearing and rail wheel, with being axially connected external member, be fixedly linked.
Deep-slotted chip breaker can be selected different radiuses, to regulate the cycle of PTMD.
Rubber buffer is placed at the two ends of deep-slotted chip breaker, to slow down the impact of rail wheel to support.
The present invention compares with traditional PTMD, and portion designs a kind of magnetorheological device in orbit, by the variation adjustable track resistance of magnetic flow liquid character, controls pendulum angle and the swing speed of PTMD, thereby regulates the control of PTMD.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of integral body of the present invention
Fig. 2 is side elevational view of the present invention
Fig. 3 is the constructional drawing of rail wheel and support
In figure: 1 support, 2 balancing weights, 3 seal covers, 4 roller bearings, 5 sleeves, 6 axially connect external member, 7 rubber gaskets, 8 diaphragm seals, 9 rail wheels, 11 cushion pads.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details
A magnetorheological half active tumbling-type quality pendulum damper device, by support 1, balancing weight 2 roller bearings 4 and magnetorheological control track form; Two support 1 vertical symmetry that structure is identical are fixed on building, are furnished with the magnetorheological control track of upper curved arc on each support 1; Annular balancing weight 2 is fixed on the centre of roller bearing 4 through roller bearing 4; The two ends of roller bearing 4 are fixed with rail wheel 9; Roller bearing 4 is arranged on the magnetorheological control track of both sides by rail wheel 9 levels.
Magnetorheological control track is comprised of support 1, rail wheel 9, magnetic flow liquid, magnet exciting coil, diaphragm seal 8, sealing rubber pad 7, rubber seal and seal cover 3; Support 1 has penetrating curved deep-slotted chip breaker, and the size of arc sealing rubber pad 7 is a bit larger tham the deep-slotted chip breaker on support 1, arc sealing rubber pad 7 from the outside of support 1 by the airtight bonding of the deep-slotted chip breaker support 1; Sealing rubber pad 7 is hollow, and both ends open; In the middle of sealing rubber pad 7, in lowest segment, locate to have penetrating arc chute; The length of chute is less than half length of diaphragm seal 8; The same radian of inner chamber of arc diaphragm seal 8 and sealing rubber pad 7; Solid metal diaphragm seal 8 is inserted in the inner chamber of sealing rubber pad 7; Diaphragm seal 8 can slide along arc in sealing rubber pad 7; The middle segmental arc of diaphragm seal 8 has a circular opening; In the middle of rail wheel 9, thin two ends are thick; In the middle of diaphragm seal 8, hole is a bit larger tham the thin axle of rail wheel 9, is less than the thick axle at rail wheel 9 two ends; The thin shaft length of rail wheel 9 is a bit larger tham the thickness of diaphragm seal 8; The thin axle of rail wheel 9 is stuck in the middle hole of diaphragm seal 8; Ring-shaped rubber sealing ring is in the inner side of support 1; The internal diameter of ring-shaped rubber sealing ring is adjacent to the thin axle of rail wheel 9, and fixing seal is bonded on diaphragm seal 8, and the outside dimension of rubber seal is less than the width of chute, and rubber seal is not rotated with rail wheel 9.Seal cover 3 covers the region at sealing rubber pad 7 places in the outside of support 1, make to form closed area between seal cover 3 and support 1; In closed area, interval is fixed wtih two magnet exciting coils, and two magnet exciting coils interconnect with wire, and wire outsourcing, with insulated hull, prevents from contacting with magnetic flow liquid; Magnetic flow liquid is filled in the enclosure space of rail wheel 9 motions.
Between roller bearing 4 and rail wheel 9, with being axially connected external member 6, be fixedly linked.
Deep-slotted chip breaker can be selected different radiuses, to regulate the cycle of PTMD.
When generation earthquake or wind shake, balancing weight 2, due to reciprocating rolling on the magnetorheological control track of acting on of inertia, applies a rightabout control to structure.The size of control is relevant to the angle of swing and angular velocity.When earthquake or wind shake when excessive, excessive and affect effectiveness in vibration suppression for fear of roll angle, according to the control algolithm of the feedback information of structure and response, foreign current is applied on magnet exciting coil, the electromagnetic field that forms suitable intensity is controlled viscosity and the mobility of magnetic flow liquid, the resistance that adjustable track wheel 9 rolls in orbit, thus angle and the angular velocity that balancing weight 2 rolls changed, reach the effect that regulates control.Also can magnetic field intensity be increased to a certain degree according to the feedback result of structure, make roller bearing 4 and magnetorheological control track keep relative static, reach the object of controlling rolling amplitude.
Claims (6)
1. a magnetorheological half tumbling-type quality pendulum damper device initiatively, by support (1), balancing weight (2) roller bearing (4) and magnetorheological control track composition; It is characterized in that: two supports (1) vertical symmetry that structure is identical is fixed on building, is furnished with the magnetorheological control track of upper curved arc on each support (1); Annular balancing weight (2) is fixed on the centre of roller bearing (4) through roller bearing (4); The two ends of roller bearing (4) are fixed with rail wheel (9); Roller bearing (4) is arranged on the magnetorheological control track of both sides by rail wheel (9) level.
2. a kind of magnetorheological half active tumbling-type quality pendulum damper device according to claim 1, is characterized in that magnetorheological control track is comprised of support (1), rail wheel (9), magnetic flow liquid, magnet exciting coil, diaphragm seal (8), sealing rubber pad (7), rubber seal and seal cover (3); Support (1) has penetrating curved deep-slotted chip breaker, and the size of arc sealing rubber pad (7) is a bit larger tham the deep-slotted chip breaker on support (1), arc sealing rubber pad (7) from the outside of support (1) by the airtight bonding of deep-slotted chip breaker support (1); Sealing rubber pad (7) is hollow, and both ends open; In the middle of sealing rubber pad (7), in lowest segment, locate to have penetrating arc chute; The length of chute is less than half length of diaphragm seal (8); The same radian of inner chamber of arc diaphragm seal (8) and sealing rubber pad (7); Solid metal diaphragm seal (8) is inserted in the inner chamber of sealing rubber pad (7); Diaphragm seal (8) can slide along arc in sealing rubber pad (7); The middle segmental arc of diaphragm seal (8) has a circular opening; In the middle of rail wheel (9), thin two ends are thick; In the middle of close (8), hole is a bit larger tham the thin axle of rail wheel (9), is less than the thick axle at rail wheel (9) two ends; The thin shaft length of rail wheel (9) is a bit larger tham the thickness of diaphragm seal (8); The thin axle of rail wheel (9) is stuck in the middle hole of diaphragm seal (8); Ring-shaped rubber sealing ring is in the inner side of support (1); The internal diameter of ring-shaped rubber sealing ring is adjacent to the thin axle of rail wheel (9), and fixing seal to be bonded in diaphragm seal (8) upper, the outside dimension of rubber seal is less than the width of chute; Seal cover (3) covers the region at sealing rubber pad (7) place in the outside of support (1), make to form closed area between seal cover (3) and support (1); In closed area, interval is fixed wtih two magnet exciting coils, and two magnet exciting coils interconnect with wire, and wire outsourcing, with insulated hull, prevents from contacting with magnetic flow liquid; Magnetic flow liquid is filled in the enclosure space of rail wheel (9) motion.
3. a kind of magnetorheological half active tumbling-type quality pendulum damper device according to claim 1, is characterized in that sleeve (5) and roller bearing (4) are fixed on the both sides of balancing weight (2) with the form of thread, in order to control moving axially of balancing weight (2).
4. according to claim 1 a kind of magnetorheological half tumbling-type quality pendulum damper device initiatively, is characterized in that between roller bearing (4) and rail wheel (9) being connected external member (6) and being fixedly linked with axial.
5. according to claim 1 a kind of magnetorheological half tumbling-type quality pendulum damper device initiatively, is characterized in that deep-slotted chip breaker can select different radiuses, to regulate the cycle of PTMD.
6. a kind of magnetorheological half active tumbling-type quality pendulum damper device according to claim 1, is characterized in that rubber buffer (11) is placed at the two ends of deep-slotted chip breaker, to slow down the impact of rail wheel (9) to support (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310591043.7A CN103628586B (en) | 2013-11-20 | 2013-11-20 | A kind of magnetorheological half active tumbling-type quality pendulum damper |
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| CN201310591043.7A CN103628586B (en) | 2013-11-20 | 2013-11-20 | A kind of magnetorheological half active tumbling-type quality pendulum damper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337591A (en) * | 2016-09-30 | 2017-01-18 | 陈政清 | Novel pendulum-type eddy current damping tuned mass vibration absorber |
| CN108221874A (en) * | 2017-12-25 | 2018-06-29 | 洛阳水利勘测设计有限责任公司 | A kind of large-sized aqueduct and construction method using inertia compensation system antidetonation |
Citations (7)
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|---|---|---|---|---|
| DE2806757B2 (en) * | 1978-02-17 | 1981-01-15 | Kabe-Werk Lufttechnik Und Entstaubung Gmbh & Co Kg, 6370 Oberursel | Arrangement for damping vibrations on buildings |
| US20040074162A1 (en) * | 2002-03-07 | 2004-04-22 | Chong-Shien Tsai | Structure of an anti-shock device |
| CN201301503Y (en) * | 2008-11-14 | 2009-09-02 | 大连理工大学 | Viscoelastic multidimensional vibration damper |
| WO2009124589A1 (en) * | 2008-04-09 | 2009-10-15 | Alga Spa | Bearings acting as energy dissipating devices |
| CN101793302A (en) * | 2010-03-18 | 2010-08-04 | 河海大学 | Three-cylinder type large-capacity magneto-rheological damper |
| CN103335052A (en) * | 2013-07-02 | 2013-10-02 | 大连理工大学 | Driven viscous damper adjustable in damping force |
| CN203559501U (en) * | 2013-11-20 | 2014-04-23 | 大连理工大学 | Magneto-rheological semi-active rolling type pendulum mass damper |
-
2013
- 2013-11-20 CN CN201310591043.7A patent/CN103628586B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2806757B2 (en) * | 1978-02-17 | 1981-01-15 | Kabe-Werk Lufttechnik Und Entstaubung Gmbh & Co Kg, 6370 Oberursel | Arrangement for damping vibrations on buildings |
| US20040074162A1 (en) * | 2002-03-07 | 2004-04-22 | Chong-Shien Tsai | Structure of an anti-shock device |
| WO2009124589A1 (en) * | 2008-04-09 | 2009-10-15 | Alga Spa | Bearings acting as energy dissipating devices |
| CN201301503Y (en) * | 2008-11-14 | 2009-09-02 | 大连理工大学 | Viscoelastic multidimensional vibration damper |
| CN101793302A (en) * | 2010-03-18 | 2010-08-04 | 河海大学 | Three-cylinder type large-capacity magneto-rheological damper |
| CN103335052A (en) * | 2013-07-02 | 2013-10-02 | 大连理工大学 | Driven viscous damper adjustable in damping force |
| CN203559501U (en) * | 2013-11-20 | 2014-04-23 | 大连理工大学 | Magneto-rheological semi-active rolling type pendulum mass damper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337591A (en) * | 2016-09-30 | 2017-01-18 | 陈政清 | Novel pendulum-type eddy current damping tuned mass vibration absorber |
| CN106337591B (en) * | 2016-09-30 | 2019-01-11 | 陈政清 | A kind of novel pendulum-type eddy-current damping tuning mass bumper |
| CN108221874A (en) * | 2017-12-25 | 2018-06-29 | 洛阳水利勘测设计有限责任公司 | A kind of large-sized aqueduct and construction method using inertia compensation system antidetonation |
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| CN103628586B (en) | 2015-10-14 |
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