CN205639453U - Self -adaptation TMD controlling means - Google Patents
Self -adaptation TMD controlling means Download PDFInfo
- Publication number
- CN205639453U CN205639453U CN201620466964.XU CN201620466964U CN205639453U CN 205639453 U CN205639453 U CN 205639453U CN 201620466964 U CN201620466964 U CN 201620466964U CN 205639453 U CN205639453 U CN 205639453U
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- conductor plate
- tmd
- plate
- permanent magnet
- memorial alloy
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Abstract
The utility model provides a self -adaptation TMD controlling means, including bottom plate, first conductor plate, second conductor plate, third conductor plate and permanent magnet, first conductor plate, second conductor plate and third conductor plate are perpendicular with the bottom plate, and second conductor plate, other end connection third conductor plate are connected to the one end of first conductor plate, and the permanent magnet is fixed to be established on the bottom plate, first conductor plate, second conductor plate and third conductor plate encircle the permanent magnet, be equipped with the rigidity adjusting device between second conductor plate and the third conductor plate, be equipped with quality piece and spring in the rigidity adjusting device, second conductor plate and third conductor plate are connected respectively through the spring to the quality piece, the rigidity adjusting device can automatically regulated TMD natural frequency, the utility model discloses can solve current TMD frequency and not possess time -variant problem, implementation structure vertical direction vibration control reaches real time control's purpose.
Description
Technical field
This utility model relates to vibration damping and controls technical field, is specifically related to a kind of self adaptation TMD and controls device.
Background technology
Tuned mass damper (TMD) is to control device early in a kind of of application in Structure uniformity, TMD is mainly made up of with the big assembly of damping element three of dissipative structure vibrational energy mass, the flexible member of tuned frequency, TMD has its irreplaceable control advantage as a kind of passive control device, but, TMD only when its natural frequency is tuned to same or like with controlled natural frequency of structures, just can produce preferable effectiveness in vibration suppression.Therefore, before design TMD, the natural frequency of vibration holding structure exactly is the most necessary.; in Practical Project; impact due to various random factors; the natural frequency of vibration accurately determining structure is the most difficult; and controlled structure is after installing TMD device; its natural frequency of vibration can occur a certain degree of drift, this undoubtedly by affect the design of TMD and its build up after control effect to stature dynamic-load response.Simultaneously in TMD long-term work, it is possible to fatigue damage occurs.Its damping element, the damping member of small-sized TMD typically uses the high damping materials such as rubber, large-scale TMD then to use fluid viscous damper etc..Elastomeric material exists aging, and the shortcoming that rigidity is not readily separated with damping, and viscous damper exists leakage of oil and is difficult to the problems such as maintenance.
Utility model content
The purpose of this utility model is to solve the problem that existing TMD frequency does not have time-varying, it is achieved the vibration control of structure vertical direction, reaches the purpose controlled in real time.
The technical solution of the utility model is as follows:
A kind of self adaptation TMD controls device, including base plate, the first conductor plate, the second conductor plate, the 3rd conductor plate and permanent magnet, first conductor plate, the second conductor plate and the 3rd conductor plate are vertical with base plate, one end of first conductor plate connects the second conductor plate, the other end connects the 3rd conductor plate, permanent magnet is fixing to be located on base plate, and described first conductor plate, the second conductor plate and the 3rd conductor plate are around permanent magnet；It is provided with rigidity adjuster between second conductor plate and the 3rd conductor plate, described rigidity adjuster is provided with mass and spring, mass connects the second conductor plate and the 3rd conductor plate respectively by spring, and described rigidity adjuster can be automatically adjusted the natural frequency of TMD.
In order to preferably realize the adaptation function of TMD, described rigidity adjuster also includes controller and memorial alloy；Described memorial alloy is that bar shaped is shaft-like and its two connects the second conductor plate and the 3rd conductor plate respectively, described controller is located on memorial alloy and is connected with mass, and the junction of described memorial alloy and the second conductor plate, the 3rd conductor plate is provided with loading prestressing apparatus；Loading the vibration of the perceptually relevant structure of prestressing apparatus, simultaneously by conduct vibrations to controller, controller controls the rigidity of memorial alloy by controlling the size of current in inflow memorial alloy, thus regulates the frequency of TMD.
In order to control to make the better of vibration damping, controller is located at the middle part of memorial alloy, the junction of described spring and memorial alloy and the second conductor plate, the 3rd conductor plate is respectively equipped with add-in card, described spring is connected by add-in card and the second conductor plate, the 3rd conductor plate, and described memorial alloy is connected through add-in card and fixing with the second conductor plate, the 3rd conductor plate；Described controller is Fructus Rubi group, and described spring is provided with many groups, and described memorial alloy is provided with two.Described permanent magnet is provided with multiple and divides two rows to be vertically fixed on base plate, and the magnetic pole of two the most adjacent permanent magnets is reverse to be arranged, and described permanent magnet is bolted on base plate.
This utility model has the advantage that relative to prior art
1, this utility model can solve the problem that the problem that existing TMD frequency does not have time-varying, it is achieved the vibration control of structure vertical direction, reaches the purpose controlled in real time.
2, conductor plate of the present utility model and permanent magnet constitute eddy-current damping, memorial alloy (SMA), spring, induction apparatus and the rigidity adjuster of controller composition and mass and other additional mass define mass fraction, the natural frequency of TMD can be regulated in real time, make integrally-built effectiveness in vibration suppression optimal.
3, the controller of this utility model TMD, is by having enrolled corresponding program in sending Fructus Rubi, reaches the purpose controlled, and more, structural vibration reduction effect is the most more for such control effect.
4, the damping of this utility model TMD is the eddy-current damping being made up of conductor plate and permanent magnet, it is possible to achieve vertical vibration damping, and eddy-current damping connects simply, component is nearly all metal, is lost the least, and the later stage is hardly with safeguarding.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is that eddy-current damping of the present utility model closes magnetic induction line schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of self adaptation TMD of the present utility model is controlled device and is described in further detail.
As shown in Figure 1, a kind of self adaptation TMD of the present utility model controls device, including base plate the 9, first conductor plate the 1, second conductor plate the 2, the 3rd conductor plate 3 and multiple permanent magnet 4, first conductor plate the 1, second conductor plate 2 and the 3rd conductor plate 3 are vertical with base plate 9, one end of first conductor plate 1 connects the second conductor plate 2, the other end connects the 3rd conductor plate 3, permanent magnet 4 is fixing to be located on base plate 9, and first conductor plate the 1, second conductor plate 2 and the 3rd conductor plate 3 are arranged around permanent magnet 4；It is provided with rigidity adjuster between second conductor plate 2 and the 3rd conductor plate 3, rigidity adjuster includes 5, two groups of springs 8 of mass, controller 12 and two shaft-like memorial alloys of bar shaped 6, mass 5 connects the second conductor plate 2 and the 3rd conductor plate 3 respectively by spring 8, memorial alloy 6 two connects the second conductor plate 2 and the 3rd conductor plate 3 respectively, controller 12 is sent for Fructus Rubi, is located at the middle part of memorial alloy 6 and is connected with mass 5, and the junction of memorial alloy 6 and the second conductor plate the 2, the 3rd conductor plate 3 is provided with loading prestressing apparatus 7.
In addition, the junction of spring 8 and memorial alloy 6 and the second conductor plate the 2, the 3rd conductor plate 3 is respectively equipped with add-in card 10, spring 8 is connected with the second conductor plate the 2, the 3rd conductor plate 3 by add-in card 10, and memorial alloy 6 is connected through add-in card 10 is fixing with the second conductor plate the 2, the 3rd conductor plate 3.4 point of two row of permanent magnet is vertically fixed on base plate 9 by bolt 11, and the magnetic pole of two the most adjacent permanent magnets 4 is reverse to be arranged.
This utility model rigidity system is made up of spring and memory alloy wire, and to memory alloy wire Prestressing, and connection has current device, and size of current is by controller control.The eddy-current damping of conductor plate and permanent magnet composition realizes the purpose of vertical vibration damping, and wherein the connection between plate with plate is for welding.At side conductor plate, being welded with additional plate, carbine is on the hole of add-in card.Permanent magnet and base plate first bolt, and bottom sticks with glue the most again.
When overall structure generation vertical motion, magnetic induction line three conductor plates of cutting form current vortex in producing current vortexs, conductor plate, and the electric current in conductor then creates the magnetic field power mutually exclusive with the generation of the magnetic field of permanent magnet thus forms damping.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (8)
1. self adaptation TMD controls device, including base plate (9), it is characterized in that, also include the first conductor plate (1), second conductor plate (2), 3rd conductor plate (3) and permanent magnet (4), described first conductor plate (1), second conductor plate (2) and the 3rd conductor plate (3) are vertical with base plate (9), one end of described first conductor plate (1) connects the second conductor plate (2), the other end connects the 3rd conductor plate (3), described permanent magnet (4) is fixing to be located on base plate (9), described first conductor plate (1), second conductor plate (2) and the 3rd conductor plate (3) are around permanent magnet (4)；
It is provided with rigidity adjuster between described second conductor plate (2) and the 3rd conductor plate (3), described rigidity adjuster is provided with mass (5) and spring (8), described mass (5) connects the second conductor plate (2) and the 3rd conductor plate (3) respectively by spring (8), and described rigidity adjuster can be automatically adjusted the natural frequency of TMD.
2. a kind of self adaptation TMD as claimed in claim 1 controls device, it is characterised in that described rigidity adjuster also includes controller (12) and memorial alloy (6)；Described memorial alloy (6) is shaft-like in bar shaped and its two connects the second conductor plate (2) and the 3rd conductor plate (3) respectively, described controller (12) is located at memorial alloy (6) and above and is connected with mass (5), and described memorial alloy (6) and the second conductor plate (2), the junction of the 3rd conductor plate (3) are provided with loading prestressing apparatus (7).
3. a kind of self adaptation TMD as claimed in claim 2 controls device, it is characterised in that described controller (12) is located at the middle part of memorial alloy (6).
4. a kind of self adaptation TMD as claimed in claim 3 controls device, it is characterized in that, described spring (8) and memorial alloy (6) are respectively equipped with add-in card (10) with the second conductor plate (2), the junction of the 3rd conductor plate (3), described spring (8) is connected with the second conductor plate (2), the 3rd conductor plate (3) by add-in card (10), and described memorial alloy (6) passes add-in card (10) and fixing with the second conductor plate (2), the 3rd conductor plate (3) and is connected.
5. a kind of self adaptation TMD as claimed in claim 4 controls device, it is characterised in that described controller (12) is Fructus Rubi group.
6. a kind of self adaptation TMD as claimed in claim 5 controls device, it is characterised in that described spring (8) is provided with many groups, and described memorial alloy (6) is provided with two.
7. a kind of self adaptation TMD as claimed in claim 6 controls device, it is characterised in that described permanent magnet (4) is provided with multiple and divides two rows to be vertically fixed on base plate (9), and the magnetic pole of two the most adjacent permanent magnets (4) is reverse to be arranged.
8. a kind of self adaptation TMD as claimed in claim 7 controls device, it is characterised in that described permanent magnet (4) is fixed on base plate (9) by bolt (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620466964.XU CN205639453U (en) | 2016-05-20 | 2016-05-20 | Self -adaptation TMD controlling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620466964.XU CN205639453U (en) | 2016-05-20 | 2016-05-20 | Self -adaptation TMD controlling means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639453U true CN205639453U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620466964.XU Expired - Fee Related CN205639453U (en) | 2016-05-20 | 2016-05-20 | Self -adaptation TMD controlling means |
Country Status (1)
| Country | Link |
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| CN (1) | CN205639453U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805225A (en) * | 2016-05-20 | 2016-07-27 | 兰州理工大学 | TMD device controlling vibration of time varying structure |
| CN106368488A (en) * | 2016-11-10 | 2017-02-01 | 兰州理工大学 | Bidirectional TMD control device and parameter determination method |
| CN107161053A (en) * | 2017-06-12 | 2017-09-15 | 南京航空航天大学 | Automotive seat vibration absorber and method based on magnetic control shape memory alloy spring |
-
2016
- 2016-05-20 CN CN201620466964.XU patent/CN205639453U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805225A (en) * | 2016-05-20 | 2016-07-27 | 兰州理工大学 | TMD device controlling vibration of time varying structure |
| CN105805225B (en) * | 2016-05-20 | 2019-03-22 | 兰州理工大学 | A kind of TMD device of control Time variable structure vibration |
| CN106368488A (en) * | 2016-11-10 | 2017-02-01 | 兰州理工大学 | Bidirectional TMD control device and parameter determination method |
| CN107161053A (en) * | 2017-06-12 | 2017-09-15 | 南京航空航天大学 | Automotive seat vibration absorber and method based on magnetic control shape memory alloy spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20170520 |