CN105756219A - Horizontal bidirectional visco elastic collision tuned mass damper system and working method thereof - Google Patents
Horizontal bidirectional visco elastic collision tuned mass damper system and working method thereof Download PDFInfo
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- CN105756219A CN105756219A CN201610299668.XA CN201610299668A CN105756219A CN 105756219 A CN105756219 A CN 105756219A CN 201610299668 A CN201610299668 A CN 201610299668A CN 105756219 A CN105756219 A CN 105756219A
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- 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
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Abstract
The invention relates to a horizontal bidirectional visco elastic collision tuned mass damper system and a working method thereof. The horizontal bidirectional visco elastic collision tuned mass damper system comprises a hollow circular outer cylinder, an upper cover plate arranged above the hollow circular outer cylinder and a lower cover plate arranged under the hollow circular outer cylinder; a universal joint is arranged in the middle of the lower end surface of the upper cover plate; a circular visco elastic limiting device is arranged in the middle of the upper end surface of the lower cover plate. The horizontal bidirectional visco elastic collision tuned mass damper system further comprises a first cylindrical mass block and a second cylindrical mass block; the circle center part at the upper end of the first cylindrical mass block is hinged to the universal joint through a first rigid rod, and the circle center part at the lower end of the first cylindrical mass block is connected with the circle center part at the upper end of the second cylindrical mass block through a second rigid rod; the lower part of the second cylindrical mass block is positioned in the circular visco elastic limiting device; the first cylindrical mass block is also connected with the inner wall of the hollow circular outer cylinder through a plurality of springs. The horizontal bidirectional visco elastic collision tuned mass damper system provided by the invention is simple in structure and easy to realize and overcomes the defect that the damping effect of a TMD device is very sensitive to the frequency and has poor adaptability to different excitations.
Description
Technical field
The present invention relates to a kind of horizontal bidirectional viscoelasticity collision Tuned mass damper system and method for work thereof.
Background technology
Tuned mass damper (TMD) is as the one in common passive control, nowadays, has comparatively ripe with TMD device and be widely applied in the Structures under Wind of civil engineering, overpass vibration control.But, TMD device has non-adjustable and adaptivity difference inherent shortcoming, frequency is very sensitive and that difference the is encouraged bad adaptability of the effectiveness in vibration suppression of TMD device.In view of the deficiencies in the prior art, the present invention will cause this phenomenon of substantial amounts of energy expenditure based on collision process, will introduce viscoelasticity stopping means, and utilize collision to realize further power consumption in viscoelasticity P-TMD antivibrator in tradition TMD device.
By the design of the Reasonable Parameters of device being will be carried out device passive conversion of collision in various degree and different power consumption pattern under difference encourages, and thus give the adaptive capacity that this antivibrator is certain to different external drives.It is to say, this device will can retain the advantage that tradition TMD device passively controls, the parameter that can pass through to design in advance again gives it to a certain extent and external drive and structure is changed better adaptability, and will not increase control cost too much.
Summary of the invention
It is an object of the invention to provide a kind of horizontal bidirectional viscoelasticity collision Tuned mass damper system and method for work thereof, this system simple structure, easily realize, and the effectiveness in vibration suppression that improves TMD device is very sensitive to frequency and the defect of bad adaptability to difference excitation.
nullFor achieving the above object，The technical scheme is that a kind of horizontal bidirectional viscoelasticity collision Tuned mass damper system，Including hollow circular urceolus、It is located at the upper cover plate above hollow circular urceolus and is located at the lower cover below hollow circular urceolus，Middle part, described upper cover plate lower surface is provided with a universal hinge，The middle part of described lower cover upper surface is provided with a circular viscoelasticity stopping means，Also include first、Second cylindrical mass block，Described first position, the center of circle, cylindrical mass block upper end is hinged by one first rigid rod and described universal hinge，First position, the center of circle, cylindrical mass block lower end is connected with described second position, the center of circle, cylindrical mass block upper end by one second rigid rod，Described second cylindrical mass block bottom is positioned at described circular viscoelasticity stopping means，Described first cylindrical mass block is connected also by the inwall of some springs with described hollow circular urceolus.
In an embodiment of the present invention, described universal hinge is welded in middle part, described upper cover plate lower surface.
In an embodiment of the present invention, described circular viscoelasticity stopping means includes a circle collision ring being welded in middle part, described lower cover upper surface and is affixed on the viscoelastic material inside described circular collision ring.
In an embodiment of the present invention, described first cylindrical mass block is by being connected to the inwall of spring with described hollow circular urceolus from all directions.
In an embodiment of the present invention, it is connected by AB structure glue between described first cylindrical mass block and spring.
In an embodiment of the present invention, the connection of described first cylindrical mass block and the first rigid rod and the second rigid rod is threaded, and the first cylindrical mass block circle centre position has punching tapping.
In an embodiment of the present invention, the connection of described second cylindrical mass block and the second rigid rod is threaded, and the second cylindrical mass block circle centre position has punching tapping.
In an embodiment of the present invention, described first and second rigid rod surface is all threaded.
In an embodiment of the present invention, described upper cover plate, lower cover are embedded on described hollow circular urceolus, and are connected by AB structure glue.
Present invention also offers a kind of based on the method for work of horizontal bidirectional viscoelasticity collision Tuned mass damper system described in above-mentioned any one, including following three kinds of mode of operations,
(1) when the relative maximum amplitude of the second cylindrical mass block and first threshold under the gap width of the second cylindrical mass block pre-set and viscoelasticity stopping means is more than external drive level, second cylindrical mass block will not occur with the collision of viscoelasticity stopping means, and viscoelasticity P-TMD is operated deteriorating to a general T MD completely；The power consumption of this timer is only presented as mechanical energy power consumption and the part damping energy dissipation of the first cylindrical mass block；
(2) when the gap width of the second cylindrical mass block pre-set and viscoelasticity stopping means is less than the first predetermined threshold value, and during more than the second predetermined threshold value, intermittence is occurred by the second cylindrical mass block with viscoelasticity stopping means, the cycle movement pattern of the first cylindrical mass block will be disturbed, and now then regard a collision superposition tuned mass damper as by approximate for device；The mechanical energy being presented as the first cylindrical mass block is consumed energy and the combination of the second cylindrical mass block energy by collision by the power consumption pattern of device；
(3) when the gap width of the second cylindrical mass block pre-set and viscoelasticity stopping means is less than second predetermined threshold value, collision will frequently occur, and device is completely transformed into the antivibrator that energy by collision is master.
Compared to prior art, the method have the advantages that
(1) by the Reasonable Parameters of PTMD device is designed, such as the gap etc. of quality size, coupling stiffness, damping, viscoelastic layer thickness and mass and stopping means, it is possible to achieve the passive conversion of device difference power consumption pattern under different external drives；
(2) the difference power consumption pattern of PTMD device, improves that the effectiveness in vibration suppression of TMD device is very sensitive to frequency and the defect of bad adaptability to difference excitation, and this device has stronger adaptivity；
(3) PTMD device is the same with TMD device, simple structure, easily realizes, and is therefore easy to be applied to during the vibration damping of Practical Project controls.
Accompanying drawing explanation
Fig. 1 is the schematic front view of horizontal bidirectional of the present invention collision tuned mass damper PTMD.
Fig. 2 is the schematic side view of horizontal bidirectional of the present invention collision tuned mass damper PTMD.
Fig. 3 is the schematic top plan view of horizontal bidirectional of the present invention collision tuned mass damper PTMD.
In figure: 1 is upper cover plate, 2 is universal hinge, and 3,11 is rigid rod, and 4 is urceolus, and 5 is mass, and 6 is spring, and 7 is mass, and 8 is circular collision ring, and 9 is viscoelastic material, and 10 is lower cover.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is specifically described.
nullA kind of horizontal bidirectional viscoelasticity collision Tuned mass damper system of the present invention，Including hollow circular urceolus、It is located at the upper cover plate above hollow circular urceolus and is located at the lower cover below hollow circular urceolus，Middle part, described upper cover plate lower surface is provided with a universal hinge，The middle part of described lower cover upper surface is provided with a circular viscoelasticity stopping means，Also include first、Second cylindrical mass block，Described first position, the center of circle, cylindrical mass block upper end is hinged by one first rigid rod and described universal hinge，First position, the center of circle, cylindrical mass block lower end is connected with described second position, the center of circle, cylindrical mass block upper end by one second rigid rod，Described second cylindrical mass block bottom is positioned at described circular viscoelasticity stopping means，Described first cylindrical mass block is connected also by the inwall of some springs with described hollow circular urceolus.
Described universal hinge is welded in middle part, described upper cover plate lower surface.
Described circular viscoelasticity stopping means includes a circle collision ring being welded in middle part, described lower cover upper surface and is affixed on the viscoelastic material inside described circular collision ring.
Described first cylindrical mass block is by being connected to the inwall of spring with described hollow circular urceolus from all directions.It is connected by AB structure glue between described first cylindrical mass block and spring.The connection of described first cylindrical mass block and the first rigid rod and the second rigid rod is threaded, and the first cylindrical mass block circle centre position has punching tapping.The connection of described second cylindrical mass block and the second rigid rod is threaded, and the second cylindrical mass block circle centre position has punching tapping.Described first and second rigid rod surface is all threaded.
Described upper cover plate, lower cover are embedded on described hollow circular urceolus, and are connected by AB structure glue.
Present invention also offers a kind of based on the method for work of horizontal bidirectional viscoelasticity collision Tuned mass damper system described in above-mentioned any one, including following three kinds of mode of operations,
(1) when the relative maximum amplitude of the second cylindrical mass block and first threshold under the gap width of the second cylindrical mass block pre-set and viscoelasticity stopping means is more than external drive level, second cylindrical mass block will not occur with the collision of viscoelasticity stopping means, and viscoelasticity P-TMD is operated deteriorating to a general T MD completely；The power consumption of this timer is only presented as mechanical energy power consumption and the part damping energy dissipation of the first cylindrical mass block；
(2) when the gap width of the second cylindrical mass block pre-set and viscoelasticity stopping means is less than the first predetermined threshold value, and during more than the second predetermined threshold value, intermittence is occurred by the second cylindrical mass block with viscoelasticity stopping means, the cycle movement pattern of the first cylindrical mass block will be disturbed, and now then regard a collision superposition tuned mass damper as by approximate for device；The mechanical energy being presented as the first cylindrical mass block is consumed energy and the combination of the second cylindrical mass block energy by collision by the power consumption pattern of device；
(3) when the gap width of the second cylindrical mass block pre-set and viscoelasticity stopping means is less than second predetermined threshold value, collision will frequently occur, and device is completely transformed into the antivibrator that energy by collision is master.
Wherein, the first predetermined threshold value, the second predetermined threshold value determine by current external stimulation level, are specifically determined by the relative maximum amplitude of the second cylindrical mass block under current external stimulation level.
Tell about technical solution of the present invention in detail below.
As Figure 1-3, the horizontal bidirectional viscoelasticity collision tuned mass damper device of the present invention, it is made up of urceolus 4, upper and lower cover plates 1 and 10, mass 5 and 7, spring 6, universal hinge 2, rigid rod 3 and 11, viscoelastic material 9.Wherein, lower cover welds a viscoelasticity stopping means (this viscoelasticity stopping means includes circular collision ring, can paste viscoelastic material inside collision ring).Mass is cylindrical, circle centre position has punching tapping, and it is divided into two kinds, and one is that the most beneath mass 7 can collide with viscoelasticity stopping means, another kind of mass 5 surface is provided with a number of spring 6, and spring 6 is connected by AB structure glue with the surface of mass 5.Lower cover 10 embeds the inwall of urceolus 4 by appropriate design size, fixes again through AB structure glue.Universal hinge 2 and upper cover plate are by being welded to connect, and rigid rod 3 and 11 surface is threaded, it is simple to be connected with mass 5 and 7.
Change along with external drive, tuned frequency that device is initial and different gaps will make the power consumption pattern of device by along with kinetic energy with relative motion in various degree at mass dissimilar between mass unit and agent structure and potential energy power consumption, or change in different ratios between energy by collision.This just will make the relatively conventional passive device of this passive device have more work power consumption pattern, and the transformation process of the pattern that consumes energy is not required to manually intervene, and the gap of quality size, coupling stiffness, damping, viscoelastic layer thickness and mass and stopping means etc. that can be by designing in advance determines.
(1) when the setting of the gap width pre-set has exceeded the relative maximum amplitude of mass under this stimulation level, collision will not occur, and viscoelasticity P-TMD is operated deteriorating to a general T MD completely；The power consumption of this timer is only presented as mechanical energy power consumption and the part damping energy dissipation of mass.
(2) working as gap width and be reduced to a certain degree, collision intermittence occurs, and the cycle movement pattern of mass will be disturbed, and now then can regard that is collided a superposition tuned mass damper as by approximate for device.Power consumption pattern is by the combination of the different proportion of the mechanical energy Yu energy by collision that are presented as mass.
(3) gap continues to reduce, and collision will frequently occur, and device is completely transformed into the antivibrator that energy by collision is master.
Therefore, this self adaptation viscoelasticity P-TMD expection will have multiple work and power consumption pattern, and its mode of operation is by closely related with intensity and the frequency content of the initial parameter value set and external drive, it is possible to carry out self-adaptative adjustment along with the change of external drive.Certainly, maximum in order to make device energy-wasting reach, it is necessary to carry out optimized design for parameters such as the vibration damping purpose coupling stiffness to just setting, gap widths.
It is above presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, when produced function is without departing from the scope of technical solution of the present invention, belong to protection scope of the present invention.
Claims (10)
- null1. a horizontal bidirectional viscoelasticity collision Tuned mass damper system，It is characterized in that: include hollow circular urceolus、It is located at the upper cover plate above hollow circular urceolus and is located at the lower cover below hollow circular urceolus，Middle part, described upper cover plate lower surface is provided with a universal hinge，The middle part of described lower cover upper surface is provided with a circular viscoelasticity stopping means，Also include first、Second cylindrical mass block，Described first position, the center of circle, cylindrical mass block upper end is hinged by one first rigid rod and described universal hinge，First position, the center of circle, cylindrical mass block lower end is connected with described second position, the center of circle, cylindrical mass block upper end by one second rigid rod，Described second cylindrical mass block bottom is positioned at described circular viscoelasticity stopping means，Described first cylindrical mass block is connected also by the inwall of some springs with described hollow circular urceolus.
- 2. horizontal bidirectional viscoelasticity according to claim 1 collision Tuned mass damper system, it is characterised in that: described universal hinge is welded in middle part, described upper cover plate lower surface.
- 3. horizontal bidirectional viscoelasticity according to claim 1 collision Tuned mass damper system, it is characterised in that: described circular viscoelasticity stopping means includes a circle collision ring being welded in middle part, described lower cover upper surface and is affixed on the viscoelastic material inside described circular collision ring.
- 4. horizontal bidirectional viscoelasticity according to claim 1 collision Tuned mass damper system, it is characterised in that: described first cylindrical mass block is by being connected to the inwall of spring with described hollow circular urceolus from all directions.
- 5. the horizontal bidirectional viscoelasticity collision Tuned mass damper system according to claim 1 or 4, it is characterised in that: it is connected by AB structure glue between described first cylindrical mass block and spring.
- 6. horizontal bidirectional viscoelasticity according to claim 1 collision Tuned mass damper system, it is characterized in that: the connection of described first cylindrical mass block and the first rigid rod and the second rigid rod is threaded, the first cylindrical mass block circle centre position has punching tapping.
- 7. horizontal bidirectional viscoelasticity according to claim 1 collision Tuned mass damper system, it is characterised in that: the connection of described second cylindrical mass block and the second rigid rod is threaded, and the second cylindrical mass block circle centre position has punching tapping.
- 8. horizontal bidirectional viscoelasticity according to claim 1 collision Tuned mass damper system, it is characterised in that: described first and second rigid rod surface is all threaded.
- 9. horizontal bidirectional viscoelasticity according to claim 1 collision Tuned mass damper system, it is characterised in that: described upper cover plate, lower cover are embedded on described hollow circular urceolus, and are connected by AB structure glue.
- 10. the method for work colliding Tuned mass damper system based on horizontal bidirectional viscoelasticity described in claim 1 to 9 any one, it is characterised in that: include following three kinds of mode of operations,(1) when the relative maximum amplitude of the second cylindrical mass block and first threshold under the gap width of the second cylindrical mass block pre-set and viscoelasticity stopping means is more than external drive level, second cylindrical mass block will not occur with the collision of viscoelasticity stopping means, and viscoelasticity P-TMD is operated deteriorating to a general T MD completely；The power consumption of this timer is only presented as mechanical energy power consumption and the part damping energy dissipation of the first cylindrical mass block；(2) when the gap width of the second cylindrical mass block pre-set and viscoelasticity stopping means is less than the first predetermined threshold value, and during more than the second predetermined threshold value, intermittence is occurred by the second cylindrical mass block with viscoelasticity stopping means, the cycle movement pattern of the first cylindrical mass block will be disturbed, and now then regard a collision superposition tuned mass damper as by approximate for device；The mechanical energy being presented as the first cylindrical mass block is consumed energy and the combination of the second cylindrical mass block energy by collision by the power consumption pattern of device；(3) when the gap width of the second cylindrical mass block pre-set and viscoelasticity stopping means is less than second predetermined threshold value, collision will frequently occur, and device is completely transformed into the antivibrator that energy by collision is master.
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| CN201610299668.XA CN105756219B (en) | 2016-05-09 | 2016-05-09 | Horizontal bidirectional viscoplasticity collides Tuned mass damper system and its method of work |
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| CN201610299668.XA CN105756219B (en) | 2016-05-09 | 2016-05-09 | Horizontal bidirectional viscoplasticity collides Tuned mass damper system and its method of work |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107143052A (en) * | 2017-07-03 | 2017-09-08 | 大连理工大学 | The space damper that a kind of many power consumption modes are combined |
| CN110805530A (en) * | 2019-09-20 | 2020-02-18 | 株洲时代新材料科技股份有限公司 | Tuned mass damping device |
| CN110805529A (en) * | 2019-09-20 | 2020-02-18 | 株洲时代新材料科技股份有限公司 | Tuned mass damping device |
| WO2021052427A1 (en) * | 2019-09-20 | 2021-03-25 | 株洲时代新材料科技股份有限公司 | Tuned mass damping device |
| CN113089865A (en) * | 2021-03-15 | 2021-07-09 | 株洲时代新材料科技股份有限公司 | Tuned mass damping device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107143052A (en) * | 2017-07-03 | 2017-09-08 | 大连理工大学 | The space damper that a kind of many power consumption modes are combined |
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