CN101832358A - Peg-top vibration-reducing damper for controlling structure to vibrate in multiple dimensions and manufacturing method thereof - Google Patents
Peg-top vibration-reducing damper for controlling structure to vibrate in multiple dimensions and manufacturing method thereof Download PDFInfo
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- CN101832358A CN101832358A CN 201010136243 CN201010136243A CN101832358A CN 101832358 A CN101832358 A CN 101832358A CN 201010136243 CN201010136243 CN 201010136243 CN 201010136243 A CN201010136243 A CN 201010136243A CN 101832358 A CN101832358 A CN 101832358A
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Abstract
The invention relates to a peg-top vibration-reducing damper for controlling a structure to vibrate in multiple dimensions and a manufacturing method thereof, belonging to the technical fields of wind resistance, vibration resistance and vibration reduction of structural engineering. The peg-top vibration-reducing damper comprises a peg-top outer frame, a peg-top inner frame, a peg-top outer support shaft, a peg-top rotor, a peg-top inner support shaft, an annular frame drum, a universal rolling spherical hinge, a spacing wall, a motor and the like, wherein the peg-top outer frame can rotate around a certain horizontal shaft of a building structure; the peg-top inner frame can rotate around a horizontal shaft orthogonal to the certain horizontal shaft; the peg-top outer support shaft is fixed on the spacing wall; the peg-top rotor is rotated by electric power; the annular frame drum can rotate on a horizontal plane; the universal rolling spherical hinge is installed at the bottom of the annular frame drum; the spacing wall is fixed on a structure main body; and the motor provides the electric power. The invention can improve the dynamic characteristics of the original structure, realizes the function of transferring and dissipating part kinetic energy which should be borne by the structure under the external dynamic action, and realizes dissipation of energy in multiple dimensions, thereby reducing the destructiveness of the original building structure.
Description
Technical field
The present invention relates to gyrodamper of a kind of control structure multi-dimensional vibration and preparation method thereof, this damper can carry out tuning energy-dissipating and shock-absorbing in the substantially horizontal and the horizontal plane intort direction of structure, belongs to the antidetonation wind resistance antivibration area of structural engineering.
Background technique
Along with improving constantly of civil construction project theory and technical merit, worldwide great building structure is to maximization, complicated and toweringization development.Structure is therefore general gentle partially, wind shake and environmental factor effect such as earthquake under be out of shape apparent in viewly, the Security of structure and personnel's comfort level have been subjected to acid test.Fact proved, structure under wind action, will produce the buffeting of down wind and beam wind to the whirlpool shake, complex vibration form such as galloping.Structure under geological process, both comprised level two to vertical vibration, also comprise and reversing and rocking vibration.Therefore, especially the tall and slender structure translation of under hurricane or geological process, generation be can not ignore and the space oscillations of twisted coupling of building structure.Carry out the level of building structure and reverse coupling connection Study on Vibration Control, guarantee that Security and the applicability of structure in natural disaster and use is significant.
Thereby the core objective of structural vibration control theory is to utilize electrical secondary system or spare system to attract the vibrational energy of agent structure that agent structure vibration reaction is reduced.The structural vibration control technology provides an effective way for solving the problem that exists in traditional Aseismic Structure System.Yet, present vibration damping control research mostly is to become areal model to consider designs simplification, the reaction of structure under hurricane or geological process is multidimensional, particularly for non-symmetry structure, do not consider that the control of multidimensional coupling vibration damping will cause effectiveness in vibration suppression to reduce greatly, can not satisfy the needs of actual engineering.In addition, need provide little, the effectiveness in vibration suppression of taking up room significantly to install and in actual engineering, to use for some structures with special shape or structure.Therefore, exploitation damped system flexible for installation, that be quick on the draw, have the tuning effectiveness in vibration suppression of multidimensional has the important engineering meaning.
Summary of the invention
The present invention proposes gyrodamper of a kind of control structure multi-dimensional vibration and preparation method thereof, this damper has multidimensional vibration reduction, effectiveness in vibration suppression is obvious and characteristics such as adjustable, flexible arrangement.Under hurricane or geological process, the tuning quality of damper inside can rotate, and the dead axle gyro can provide opposing torque to reduce the structure level distortion, and damper integral body has the function of dissipation external kinetic energy, thereby guarantees structural safety.
To achieve these goals, the present invention has taked following technological scheme:
A kind of gyro damper of control structure multi-dimensional vibration, this damper comprise can around gyro external frame that building structure certain level axle rotates, can around with the aforementioned levels axle mutually the gyro inner gimbal that rotates of the horizontal axis of quadrature, be fixed on the back shaft gyro on the spacing walls outside, rely on gyrorotor that electric power rotates, back shaft in the gyro, can be at the ring frame tube that rotates on the horizontal plane, the universal rolling ball pivot that is installed in the ring frame tube bottom, the motor etc. that is fixed on the spacing walls on the main structure body and electric power is provided.
Gyroscopic apparatus in the damper is a rate gyroscope, promptly have inside and outside two frameworks, gyro inner gimbal (2) is fixed in the gyro external frame (1) by rotating shaft and surveys, gyrorotor (4) is fixed on gyro inner gimbal (2) bosom position by back shaft (5) in the gyro, gyro external frame (1) is fixedlyed connected with the outer back shaft (3) of gyro, makes the rotor axis of rotation have two rotational freedoms.Thereby guarantee that gyroscopic apparatus rotates with certain angular velocity under dynamic action, generation has the moment of opposing horizontal quadrature two to displacement, try hard to keep the constant characteristic of its axis of rotation relative inertness dimensional orientation, produce big Horizontal displacement or deflection thereby can suppress structure.Described ring frame tube (6) is installed between agent structure inwall (10) and the spacing walls (8).
The ring frame tube is 0.01 meter to 0.1 meter with the distance that is fixed on structure or ring frame tube spacing walls, and the height of spacing walls is more than 0.65 times of ring frame tube height.Guarantee that serious toppling or slippage do not take place the ring frame tube in vibration.
Under the normal state, the spin axis of gyrorotor keeps vertical direction, and guarantees all to arrange symmetrically in the pairwise orthogonal substantially horizontal.Need evenly to arrange the universal rolling ball pivot at the ring frame tube bottom, and in same footpath down to arranging less more than two, guarantee that the ring frame tube under the normal condition is in the horizontal arrangement state.Scribble oiling agent on the surface of contact of universal rolling ball pivot and agent structure.Motor is whole gyroscopic apparatus power supply, and each gyrorotor at the uniform velocity rotates with unequal angular velocity when motion.
The spacing walls that is fixed on the main structure body has enough big rigidity, and the distortion with respect to main structure body does not take place under dynamic action.
Under dynamic actions such as hurricane or earthquake, dead axle gyro system in the damper can provide opposing torque to reduce the structure level distortion, the ring frame tube can rotate, provides to suppress the rotator inertia square that structure level reverses, thus the purpose of control structure multidimensional dynamic response.
Concrete vibration attenuation mechanism of the present invention is as follows: for two-degrees-of freedom gyro, when gyrorotor rotation does not take place and the agent structure that is connected with back shaft outside the gyro when relatively rotating, because the influence of friction in the gyroscopes frame bearing, back shaft will be changed original orientation by drive in the gyro.When gyrorotor with at a high speed around its axis of rotation rotation the time, bear when relatively rotating the impact moment that produces around gyro external frame axle (or input axis) because of agent structure, the orientation of gyrostatic rotor shaft does not significantly change, and rotor shaft is only done small vibration, and this is with regard to the stabilization of gyro.As seen, rate gyroscope has the opposing of generation disturbance torque, tries hard to keep the constant characteristic of its axis of rotation relative inertness dimensional orientation, promptly gyrostatic gyroscopic inertia or stability.Therefore, when the rotating speed of gyro was enough big, utilizing the gyroscopic inertia of gyro can control structure be Horizontal displacement around the bending deflection of vertical axis, thereby avoids structure to destroy.
At torsional direction, can rotate around the structure vertical axis owing to be equipped with the ring frame tube of universal rolling ball pivot, thereby form dissipative structure kinetic energy with the rotator inertia square of construction torsion reverse movement, also can suitably reduce the torsional displacement of structure.
The present invention utilizes its gyroscopic inertia to reduce its horizontal displacement by structurally arranging a plurality of two-degrees-of freedom gyros of rotation fast.Arrange rotatable annular frame tube simultaneously, antitorque rotator inertia square is provided, can alleviate the torsional displacement of structure.Can improve the dynamic property of original structure generally, be implemented in the function that can shift the part kinetic energy that should bear under the external impetus effect, realize the multidimensional power consumption, thereby reduce existing building structural damage degree with dissipative structure.
Compared with prior art, advantage of the present invention is as follows:
1) two-degrees-of freedom gyro among the present invention can provide moment to structure by high speed rotating, and the Horizontal displacement that guarantees structure is in limited range.The volume of gyro is less, can adopt the mode of even dispersed placement.The rotational velocity Adjustable real-time of gyro, effectiveness in vibration suppression is controlled.
2) the tuning rotator inertia square that can provide control to reverse of the ring frame cartridge system among the present invention reduces reversing of structure, thereby shifts and the kinetic energy of dissipative structure main body, has realized the function of multidimensional vibration reduction.
3) the present invention can adjust scheme flexibly according to structural type, arranges at different heights.Requisite space is less, simple structure, and damping power consumption cost performance is outstanding.
Description of drawings
Fig. 1 the present invention is along the generalized section of building cross section;
Fig. 2 the present invention is along the generalized section of building longitudinal section;
Monomer gyro three-dimensional side view among Fig. 3 the present invention.
Among the figure: 1, gyro external frame, 2, the gyro inner gimbal, 3, the outer back shaft of gyro, 4, gyrorotor, 5, back shaft in the gyro, 6, the ring frame tube, 7, the universal rolling ball pivot, 8, spacing walls, 9, motor, 10, inner structural wall.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1-Figure 3, the application of present embodiment is high 80 a meters tower structure, and last cross section is circular, and average diameter is about 20 meters.Present embodiment comprise can around gyro external frame 1 that building structure certain level axle rotates, can around with the aforementioned levels axle mutually the gyro inner gimbal 2 that rotates of the horizontal axis of quadrature, be fixed on back shaft 3 gyro on the spacing walls 8 outside, rely on gyrorotor 4 that electric power rotates, back shaft 5 in the gyro, can be at the ring frame tube 6 that rotates on the horizontal plane, be installed in the universal rolling ball pivot 7 of ring frame tube 6 bottoms, the motor 9 etc. that is fixed on the spacing walls 8 on the main structure body and electric power is provided.All parts all can be steel or alloy material.Gyroscopic apparatus in the damper is a rate gyroscope, promptly has 2 two frameworks of external frame 1 and inner gimbal, makes gyrorotor have two rotational freedoms.
In the present embodiment, the height of ring frame tube 6 is 2 meters, and inside radius is 7 meters, and outer radius is 9.5 meters.Ring frame tube 6 is 0.1 meter with the spacing of ring frame tube spacing walls 8, and the height of spacing walls 8 is 1.8 meters, and thickness is 0.5 meter.Guarantee that serious toppling or slippage do not take place ring frame tube 6 in vibration.
In the present embodiment, have 8 gyros, for each gyro, the diameter of gyrorotor 4 is 0.8 meter, and thickness is 0.2 meter.Under the normal state, the spin axis of gyrorotor 4 remains on vertical direction, and guarantees all to arrange symmetrically in the pairwise orthogonal substantially horizontal.
Need evenly to arrange universal rolling ball pivot 7 in ring frame tube 6 bottoms, and be arranged in juxtaposition two downwards, evenly arrange, have 8 groups at circumference in same footpath.Scribble oiling agent on the surface of contact of universal rolling ball pivot 3 and agent structure.
The gyro damper of the control structure multi-dimensional vibration of present embodiment is a following steps for manufacturing:
At first, according to the oeverall quality of the gyrodamper of definite control structure multi-dimensional vibrations such as quality, rotary inertia and rigidity of the planar dimension of practical structures, fundamental period, estimation.Determine the quality and motor 9 total outputs of single gyrorotor 4 quality, size and maximum (top) speed and ring frame tube 6 again.
Secondly, according to design proposal, each parts of processing and fabricating.For tower structure or tall and slender structure,, need reconstruct joist along inner structural wall, so that there are enough spaces to lay ring frame tube 6 with enough rigidity if the position that plan is installed does not have plane floor or joist.Also need to build rigidity spacing walls 8 in the joist outer end.The ring frame tube 6 that the bottom is equipped with universal rolling ball pivot 7 is installed in joist top, and between agent structure inwall 10 and spacing walls 8, guarantees ring frame tube 6 strict levels and have suitable space with spacing walls 8.
In spacing walls 8 outsides gyro is installed symmetrically then, is guaranteed symmetry and even.The outer back shaft 3 of gyro is affixed with spacing walls 8.The electric wire of each gyro is gathered and link to each other with motor 9.Motor 9 can be fixed on the agent structure.Motor control switch can be placed in the structure control chamber and carry out at the uniform velocity rotation so that start gyro according to the structural vibration situation.
More than be an exemplary embodiments of the present invention, but enforcement of the present invention is not limited thereto.
Claims (7)
1. the gyro damper of a control structure multi-dimensional vibration, it is characterized in that: comprising can be around the gyro external frame (1) of building structure certain level axle rotation, can around with the aforementioned levels axle gyro inner gimbal (2) that rotates of the horizontal axis of quadrature mutually, be fixed on the outer back shaft (3) of gyro on the spacing walls (8), rely on the gyrorotor (4) of electric power rotation, back shaft (5) in the gyro, the ring frame tube (6) that can on horizontal plane, rotate, be installed in the universal rolling ball pivot (7) of ring frame tube (6) bottom, the motor (9) that is fixed on the spacing walls (8) on the main structure body and electric power is provided, wherein, gyroscopic apparatus in the described damper is a rate gyroscope, in promptly having, outer two frameworks, gyro inner gimbal (2) is fixed on gyro external frame (1) inboard by rotating shaft, gyrorotor (4) is fixed on gyro inner gimbal (2) bosom position by back shaft (5) in the gyro, gyro external frame (1) is fixedlyed connected with the outer back shaft (3) of gyro, thereby make the rotor axis of rotation have two rotational freedoms, guarantee that gyroscopic apparatus rotates with certain angular velocity under dynamic action, generation has opposing horizontal quadrature two to the moment of disturbing, try hard to keep the constant characteristic of its axis of rotation relative inertness dimensional orientation, produce big Horizontal displacement or deflection thereby can suppress structure; Described ring frame tube (6) is installed between agent structure inwall (10) and the spacing walls (8).
2. the gyro damper of a kind of control structure multi-dimensional vibration according to claim 1; it is characterized in that: ring frame tube (6) is 0.01 meter to 0.1 meter with the distance that is fixed on structure or ring frame tube spacing walls (8); the height of spacing walls (8) is more than 0.65 times of ring frame tube (6) height, guarantees that serious toppling or slippage do not take place in vibration ring frame tube (6).
3. the gyro damper of a kind of control structure multi-dimensional vibration according to claim 1 is characterized in that: under the normal state, the spin axis of gyrorotor (4) keeps vertical direction, and guarantees all to arrange symmetrically in the pairwise orthogonal substantially horizontal.
4. the gyro damper of a kind of control structure multi-dimensional vibration according to claim 1, it is characterized in that: evenly arrange universal rolling ball pivot (7) in ring frame tube (6) bottom, and down to arranging less more than two, guarantee that the ring frame tube (6) under the normal condition is in the horizontal arrangement state in same footpath; Scribble oiling agent on the surface of contact of universal rolling ball pivot (3) and agent structure.
5. the gyro damper of a kind of control structure multi-dimensional vibration according to claim 1 is characterized in that: motor (9) is whole gyroscopic apparatus power supply, and each gyrorotor (4) at the uniform velocity rotates with unequal angular velocity when motion.
6. the gyro damper of a kind of control structure multi-dimensional vibration according to claim 1 is characterized in that: the spacing walls (8) that is fixed on the main structure body has enough big rigidity, and the distortion with respect to main structure body does not take place under dynamic action.
7. according to the making method of the gyro damper of the described a kind of control structure multi-dimensional vibration of arbitrary claim among the claim 1-6, it is characterized in that: making step is as follows:
At first, quality, rotary inertia and rigidity according to the planar dimension of practical structures, fundamental period, estimation are determined the oeverall quality of the gyrodamper of control structure multi-dimensional vibration, determine the quality and motor (9) total output of single gyrorotor (4) quality, size and maximum (top) speed and ring frame tube (6) again;
Secondly, according to design proposal, each parts of processing and fabricating, for tower structure or tall and slender structure, if the position that plan is installed does not have plane floor or joist, need reconstruct joist along inner structural wall, so that there are enough spaces to lay ring frame tube (6) with enough rigidity; Also need to build rigidity spacing walls (8) in the joist outer end; The ring frame tube (6) that the bottom is equipped with universal rolling ball pivot (7) is installed in joist top, and is positioned between agent structure inwall (10) and the spacing walls (8), guarantees the strict level of ring frame tube (6) and has suitable space with spacing walls (8);
Then, in spacing walls (8) outside gyro is installed symmetrically, is guaranteed symmetry and even, the outer back shaft (3) of gyro is affixed with spacing walls (8); The electric wire of each gyro is gathered and link to each other with motor (9); Motor (9) is fixed on the agent structure, and motor control switch is placed in the structure control chamber and carries out at the uniform velocity rotation so that start gyro according to the structural vibration situation.
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| CN201010136243XA CN101832358B (en) | 2010-03-26 | 2010-03-26 | Peg-top vibration-reducing damper for controlling structure to vibrate in multiple dimensions and manufacturing method thereof |
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| CN201010136243XA CN101832358B (en) | 2010-03-26 | 2010-03-26 | Peg-top vibration-reducing damper for controlling structure to vibrate in multiple dimensions and manufacturing method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005852A (en) * | 2010-12-08 | 2011-04-06 | 沈阳工业大学 | Device for suppressing noise and vibration of radial flux motor |
| CN105121896A (en) * | 2013-03-26 | 2015-12-02 | 标致雪铁龙集团 | Method for balancing an internal combustion engine in a vehicle |
| CN105798541A (en) * | 2014-12-31 | 2016-07-27 | 五冶集团上海有限公司 | Manufacturing method for tower damper |
| CN106838109A (en) * | 2017-02-21 | 2017-06-13 | 安徽工业大学 | Three-dimensional shock insulation device based on active mass balance and free gyroscope balance |
| CN106931069A (en) * | 2017-02-21 | 2017-07-07 | 安徽工业大学 | Based on gyroscopic anti-torsion apsacline three-dimensional shock insulation device |
| CN107194121A (en) * | 2017-06-22 | 2017-09-22 | 北京航空航天大学 | A kind of reliability estimation method of flexible drive gyro |
| CN109577505A (en) * | 2019-01-15 | 2019-04-05 | 中建钢构有限公司 | Wind resistance shock mitigation system |
| CN111350630A (en) * | 2020-03-08 | 2020-06-30 | 北京工业大学 | Multi-wind wheel multi-directional energy collection type wind power generator tower adopting multi-dimensional vibration damper |
| CN111720485A (en) * | 2020-06-24 | 2020-09-29 | 江苏科技大学 | Embedded gyroscope type six-degree-of-freedom stable platform |
| CN113864398A (en) * | 2021-09-28 | 2021-12-31 | 合肥工业大学 | Array type tuned mass damper for vibration reduction of blade disc |
| CN115662438A (en) * | 2022-10-20 | 2023-01-31 | 武昌理工学院 | Speech recognition device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005852A (en) * | 2010-12-08 | 2011-04-06 | 沈阳工业大学 | Device for suppressing noise and vibration of radial flux motor |
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| CN105121896A (en) * | 2013-03-26 | 2015-12-02 | 标致雪铁龙集团 | Method for balancing an internal combustion engine in a vehicle |
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| CN105798541A (en) * | 2014-12-31 | 2016-07-27 | 五冶集团上海有限公司 | Manufacturing method for tower damper |
| CN106838109B (en) * | 2017-02-21 | 2019-03-15 | 安徽工业大学 | Three-dimensional shock insulation device based on active mass balance and free gyroscope balance |
| CN106931069A (en) * | 2017-02-21 | 2017-07-07 | 安徽工业大学 | Based on gyroscopic anti-torsion apsacline three-dimensional shock insulation device |
| CN106838109A (en) * | 2017-02-21 | 2017-06-13 | 安徽工业大学 | Three-dimensional shock insulation device based on active mass balance and free gyroscope balance |
| CN106931069B (en) * | 2017-02-21 | 2019-04-02 | 安徽工业大学 | Based on gyroscopic anti-torsion apsacline three-dimensional shock insulation device |
| CN107194121A (en) * | 2017-06-22 | 2017-09-22 | 北京航空航天大学 | A kind of reliability estimation method of flexible drive gyro |
| CN107194121B (en) * | 2017-06-22 | 2019-10-18 | 北京航空航天大学 | A kind of reliability estimation method of flexible drive gyro |
| CN109577505A (en) * | 2019-01-15 | 2019-04-05 | 中建钢构有限公司 | Wind resistance shock mitigation system |
| CN111350630A (en) * | 2020-03-08 | 2020-06-30 | 北京工业大学 | Multi-wind wheel multi-directional energy collection type wind power generator tower adopting multi-dimensional vibration damper |
| CN111350630B (en) * | 2020-03-08 | 2021-06-04 | 北京工业大学 | Multi-wind wheel multi-directional energy collection type wind power generator tower adopting multi-dimensional vibration damper |
| CN111720485A (en) * | 2020-06-24 | 2020-09-29 | 江苏科技大学 | Embedded gyroscope type six-degree-of-freedom stable platform |
| CN113864398A (en) * | 2021-09-28 | 2021-12-31 | 合肥工业大学 | Array type tuned mass damper for vibration reduction of blade disc |
| CN115662438A (en) * | 2022-10-20 | 2023-01-31 | 武昌理工学院 | Speech recognition device |
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