CN110984664A - Multistage inductance tuning mass damper - Google Patents
Multistage inductance tuning mass damper Download PDFInfo
- Publication number
- CN110984664A CN110984664A CN201911311014.4A CN201911311014A CN110984664A CN 110984664 A CN110984664 A CN 110984664A CN 201911311014 A CN201911311014 A CN 201911311014A CN 110984664 A CN110984664 A CN 110984664A
- Authority
- CN
- China
- Prior art keywords
- magnet
- mass damper
- cavity
- tuned mass
- damper
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of structural vibration control, in particular to a multistage inductance tuned mass damper. The damper comprises a cavity and a plurality of damping units arranged in the cavity, wherein the damping units are uniformly arranged and keep consistent directions; the damping unit comprises a pipe body and a magnet, and the magnet is arranged in the pipe body in a sliding mode and slides back and forth along the axial direction of the pipe body; the outer wall of the middle part of the tube body is also wound with a closed coil, the closed coil is connected with a resistor in series, and the length of a covering surface of the closed coil is smaller than the movement length of the magnet; the magnet slides back and forth in the tube body, and the resistor generates heat and consumes energy through electromagnetic induction. The damper has the advantages of simple structure, convenient assembly, low material cost, small occupied space and the like, and not only can play the energy consumption and vibration reduction characteristics of the damper.
Description
Technical Field
The invention relates to the technical field of structural vibration control, in particular to a multistage inductance tuned mass damper.
Background
At present, the technical development of China is fast in the field of structural vibration reduction, various tuned mass dampers come into force, and mainly comprise pendulum tuned mass dampers, guide rail type tuned mass dampers, eddy current tuned mass dampers, particle dampers, magnetorheological tuned mass dampers and the like. However, the tuned mass damper still has some disadvantages, such as large occupied space when the pendulum damper works, noise influence of the particle damper, complex structure, high cost, poor durability, unobvious effect and the like of many tuned mass dampers. Therefore, the research on the damper with remarkable effect, economic materials and small occupied space has great significance. The inductive tuned mass damper can fully convert the mechanical energy of the vibration of the structure into electric energy and dissipate the electric energy through heating or other modes, has obvious effect, and has the advantages of low material cost, small occupied space and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a multistage inductance tuned mass damper which is suitable for horizontal or vertical vibration suppression of a structure, can exert the characteristics of energy consumption and vibration reduction of the damper, and has the advantages of low material cost, small occupied space and the like.
In order to solve the technical problems, the invention adopts the technical scheme that:
a multi-stage inductance tuned mass damper comprises a cavity and a plurality of damping units arranged in the cavity, wherein the damping units are uniformly arranged and keep consistent directions; the damping unit comprises a pipe body and a magnet, and the magnet is arranged in the pipe body in a sliding mode and slides back and forth along the axial direction of the pipe body; the outer wall of the middle part of the tube body is also wound with a closed coil, the closed coil is connected with a resistor in series, and the length of a covering surface of the closed coil is smaller than the movement length of the magnet; the magnet slides back and forth in the tube body, and the resistor generates heat and consumes energy through electromagnetic induction. The number of turns of the closed coil and the resistance value of the resistor can be obtained according to energy consumption requirements and vibration characteristics of the structure in an optimized mode. The magnet slides through the closed coil to effect a change in magnetic flux.
The damper is suitable for a structure vibrating in the horizontal or vertical direction, when the damper is used, the cavity is fixed on the vibrating structure, mechanical energy generated by vibration is converted into electric energy, and the electric energy is converted into heat energy through the resistor to be dissipated. When the structure vibrates horizontally or vertically, the cavity fixed on the structure vibrates along with the structure, the magnet slides relatively in the tube body, the magnetic flux of the coil wound outside the tube body changes rapidly, induced current is generated in the resistor and the loop of the closed coil, and the resistor generates heat and consumes energy. The technical scheme has the advantages of simple structure, reasonable assembly, small occupied space, easy acquisition of the component materials of each component part and low cost.
As one preferable scheme, the damping unit further comprises an elastic member for pulling to reset, and two ends of the magnet with polarities are respectively connected with the elastic member and connected to two ends of the tube body through the elastic member. The elastic part mainly plays a role in limiting and resetting the magnet and adjusting the vibration frequency. The selected stiffness of the spring can be determined based on the optimal frequency ratio to the structure.
Preferably, the tube body is provided with a guide rail for sliding guidance, and the magnet is provided with an axle for sliding matching with the guide rail. The guide rail is fixed in the tube body, is generally made of metal material and is mainly used for guiding the magnet to move along the axial direction of the tube body so as to change the magnetic flux of the magnet in the closed coil.
Preferably, the magnet is provided with a transverse hole at both ends, and the wheel shaft is rotatably assembled in the transverse hole. The axle, which is generally composed of two wheels and an axle, is fitted in the transverse hole of the magnet and slides in cooperation with the guide rail.
As one preferable scheme, the damping device further comprises a partition board, wherein the partition board is fixedly arranged in the cavity and divides the cavity into a plurality of chambers, and each chamber is uniformly provided with a plurality of damping units. The partition board can be a plastic board or a steel board.
As a preferable scheme, the damping units are distributed in a matrix arrangement, and are uniform and aligned.
Preferably, the elastic member is a spring.
Preferably, the cavity is a rectangular cavity.
Preferably, the pipe body is a cylindrical plastic pipe.
Preferably, the magnet is a cylindrical bar-shaped permanent magnet. The polar direction of the magnet is consistent with the axial direction of the tube body.
Compared with the prior art, the invention has the beneficial effects that: the invention discloses a multistage inductance tuning mass damper, which converts mechanical energy generated by structural vibration into electric energy, converts the electric energy into heat energy through a resistor and dissipates the heat energy, thereby achieving the effects of energy consumption and vibration reduction. The damper has the advantages of simple structure, convenient assembly, low material cost, small occupied space and the like, and not only can play the energy consumption and vibration reduction characteristics of the damper.
Drawings
Fig. 1 is a top view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the tube.
Fig. 3 is a schematic view of the structure of the magnet (without the axle).
Fig. 4 is a schematic view of the structure of the magnet (pulley shaft).
Figure 5 is a schematic view of the structure of the damping unit (without the closing coil).
Figure 6 is an internal structural view of the damping unit (without the closing coil).
Figure 7 is an axial view of the damping unit (without the closing coil).
The damping device comprises a cavity 1, a damping unit 2, a tube 3, a magnet 4, a closed coil 5, a resistor 6, an elastic part 7, a guide rail 8, a wheel shaft 9, a transverse hole 10 and a partition plate 11.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
examples
As shown in fig. 1 to 7, the present embodiment provides a multi-stage inductance tuned mass damper, which includes a cavity 1, a partition 11 and a plurality of damping units 2 disposed in the cavity 1, wherein the cavity 1 is rectangular as a whole and can be made of metal material or alternative building material, and when in use, the cavity 1 is fixed on a vibrating structure. Meanwhile, the partition plate 11 is fixedly arranged in the cavity 1, the cavity 1 is divided into three chambers, and each chamber is uniformly provided with three damping units 2. Specifically, the damping units 2 are uniformly arranged in a matrix and keep consistent directions.
Wherein, damping unit 2 includes body 3, magnet 4 and elastic component 7, and magnet 4 slides and sets up in body 3, makes a round trip to slide along body 3 axial, and elastic component 7 is connected respectively at the both ends of 4 area polarities of magnet to be connected to body 3 both ends through elastic component 7. In this embodiment, the tube bodies 3 of the damping units 2 in the same vertical row are aligned, and the partition plate 11 separates the damping units 2, so that one end of the elastic member 7 can be connected and fixed to the partition plate 11, thereby limiting and resetting the magnet 4 and adjusting the vibration frequency. In particular, where the elastic member 7 is a spring, the spring rate may be determined according to an optimal frequency ratio to the structure.
Specifically, body 3 is cylindrical plastic conduit, and magnet 4 is cylinder bar permanent magnet, is equipped with the guide rail 8 that is used for the sliding guide in the body 3, and magnet 4 is equipped with and is used for cooperating the gliding shaft 9 of guide rail 8. The magnet 4 is provided with a transverse through hole 10 at both ends, and the wheel shaft 9 is rotatably assembled in the transverse through hole 10. The wheel axle 9, which is generally composed of two wheels and an axle, is fitted in the transverse hole 10 of the magnet 4 and slides in cooperation with the guide rail 8.
In addition, the outer wall of the middle part of the tube body 3 is also wound with a closed coil 5, and the closed coil 5 is connected with a resistor 6 in series, namely the head and the tail of the coil are connected with the resistor 6 by leads. It should be noted that the closing coil 5 is a copper coil, the length of the covering surface of the closing coil 5 is smaller than the moving length of the magnet 4, the magnet 4 slides through the covering surface of the closing coil 5, and when the magnet 4 slides in the tube 3 relative to the closing coil 5, the magnetic flux in the closing coil 5 can be changed to generate an induced current in the coil. The number of turns of the closed coil 5 and the resistance value of the resistor 6 can be obtained according to energy consumption requirements and the vibration characteristic optimization of the structure.
The damper is suitable for a structure vibrating in the horizontal or vertical direction, when the damper is used, the cavity 1 is fixed on the vibrating structure, mechanical energy generated by vibration is converted into electric energy, and the electric energy is converted into heat energy through the resistor 6 to be dissipated. When the structure vibrates horizontally or vertically, the cavity 1 fixed on the structure vibrates along with the structure, the magnet 4 slides relatively in the tube body 3, magnetic flux of a coil wound outside the tube body 3 changes rapidly according to electromagnetic induction, induced current is generated in the loop of the resistor 6 and the closed coil 5, and the resistor 6 generates heat and consumes energy to play a role in vibration reduction.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A multistage inductance tuning mass damper is characterized in that: the damping device comprises a cavity (1) and a plurality of damping units (2) arranged in the cavity (1), wherein the damping units (2) are uniformly arranged and keep consistent directions; the damping unit (2) comprises a pipe body (3) and a magnet (4), wherein the magnet (4) is arranged in the pipe body (3) in a sliding mode and slides back and forth along the axial direction of the pipe body (3); a closed coil (5) is further wound on the outer wall of the middle part of the tube body (3), the closed coil (5) is connected with a resistor (6) in series, and the length of a covering surface of the closed coil (5) is smaller than the movement length of the magnet (4); the magnet (4) slides back and forth in the tube body (3), and the resistor (6) generates heat and consumes energy through electromagnetic induction.
2. The multi-stage inductively tuned mass damper of claim 1, wherein: damping unit (2) still include elastic component (7) that are used for the pulling to reset, elastic component (7) are connected respectively at the both ends of magnet (4) area polarity to be connected to body (3) both ends through elastic component (7).
3. The multi-stage inductively tuned mass damper of claim 1 or 2, wherein: the magnetic body (4) is provided with a wheel shaft (9) which is used for being matched with the guide rail (8) to slide.
4. The multi-stage inductively tuned mass damper of claim 3, wherein: and transverse through holes (10) are formed in two ends of the magnet (4), and the wheel shaft (9) is rotatably assembled in the transverse through holes (10).
5. The multi-stage inductively tuned mass damper of claim 1, wherein: still include baffle (11), baffle (11) are fixed to be located in cavity (1) to divide into a plurality of cavities with cavity (1), each cavity evenly is equipped with a plurality of damping unit (2).
6. The multi-stage inductively tuned mass damper of claim 5, wherein: the damping units (2) are distributed in a matrix arrangement mode, and are uniform and aligned.
7. The multi-stage inductively tuned mass damper of claim 2, wherein: the elastic piece (7) is a spring.
8. The multi-stage inductively tuned mass damper of claim 5, wherein: the cavity (1) is a rectangular cavity.
9. The multi-stage inductively tuned mass damper of claim 8, wherein: the pipe body (3) is a cylindrical plastic pipeline.
10. The multi-stage inductively tuned mass damper of claim 9, wherein: the magnet (4) is a cylindrical bar-shaped permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311014.4A CN110984664A (en) | 2019-12-18 | 2019-12-18 | Multistage inductance tuning mass damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311014.4A CN110984664A (en) | 2019-12-18 | 2019-12-18 | Multistage inductance tuning mass damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110984664A true CN110984664A (en) | 2020-04-10 |
Family
ID=70095543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911311014.4A Pending CN110984664A (en) | 2019-12-18 | 2019-12-18 | Multistage inductance tuning mass damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110984664A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730975A1 (en) * | 1987-09-15 | 1989-03-23 | Siemens Ag | Magnetic spring and a method for adjustment |
| JPH09273591A (en) * | 1996-04-04 | 1997-10-21 | Nippon Steel Corp | Base-isolating device |
| CN2906124Y (en) * | 2006-04-26 | 2007-05-30 | 刘宗锋 | Sleeve winding type electromagnetic generation damper |
| CN102493572A (en) * | 2011-12-27 | 2012-06-13 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Adjustable damping energy storage type tuned mass damper |
| CN203836048U (en) * | 2014-05-28 | 2014-09-17 | 温州大学 | Electromagnetic damper |
| CN104912998A (en) * | 2015-06-26 | 2015-09-16 | 太阳鸟游艇股份有限公司 | Yacht engine cabin vibration absorber |
| CN205207532U (en) * | 2015-12-17 | 2016-05-04 | 中国地震局工程力学研究所 | One -way damping case of assembled based on harmonious mass damper principle |
| CN106284728A (en) * | 2016-09-23 | 2017-01-04 | 上海交通大学 | Transient state kinetic energy absorption cell and its implementation and purposes |
| CN106639470A (en) * | 2016-12-06 | 2017-05-10 | 山东大学 | Vibration-attenuation control device for eddy current damper |
| CN207829204U (en) * | 2018-01-23 | 2018-09-07 | 上海路博减振科技股份有限公司 | A kind of rail mounted eddy current tuned mass damper |
| CN108560754A (en) * | 2018-04-27 | 2018-09-21 | 同济大学 | A kind of eddy current tuned mass damper of half active variable mass variable damping |
| CN108843719A (en) * | 2018-08-26 | 2018-11-20 | 华东交通大学 | A kind of Frequency Adjustable formula damping intelligence control dynamic vibration absorber |
-
2019
- 2019-12-18 CN CN201911311014.4A patent/CN110984664A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730975A1 (en) * | 1987-09-15 | 1989-03-23 | Siemens Ag | Magnetic spring and a method for adjustment |
| JPH09273591A (en) * | 1996-04-04 | 1997-10-21 | Nippon Steel Corp | Base-isolating device |
| CN2906124Y (en) * | 2006-04-26 | 2007-05-30 | 刘宗锋 | Sleeve winding type electromagnetic generation damper |
| CN102493572A (en) * | 2011-12-27 | 2012-06-13 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Adjustable damping energy storage type tuned mass damper |
| CN203836048U (en) * | 2014-05-28 | 2014-09-17 | 温州大学 | Electromagnetic damper |
| CN104912998A (en) * | 2015-06-26 | 2015-09-16 | 太阳鸟游艇股份有限公司 | Yacht engine cabin vibration absorber |
| CN205207532U (en) * | 2015-12-17 | 2016-05-04 | 中国地震局工程力学研究所 | One -way damping case of assembled based on harmonious mass damper principle |
| CN106284728A (en) * | 2016-09-23 | 2017-01-04 | 上海交通大学 | Transient state kinetic energy absorption cell and its implementation and purposes |
| CN106639470A (en) * | 2016-12-06 | 2017-05-10 | 山东大学 | Vibration-attenuation control device for eddy current damper |
| CN207829204U (en) * | 2018-01-23 | 2018-09-07 | 上海路博减振科技股份有限公司 | A kind of rail mounted eddy current tuned mass damper |
| CN108560754A (en) * | 2018-04-27 | 2018-09-21 | 同济大学 | A kind of eddy current tuned mass damper of half active variable mass variable damping |
| CN108843719A (en) * | 2018-08-26 | 2018-11-20 | 华东交通大学 | A kind of Frequency Adjustable formula damping intelligence control dynamic vibration absorber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106641062B (en) | Magnetoelectricity reaction equation variable-damp vibration damper | |
| CN106795939B (en) | Vibration absorber for damping vibrations occurring in a wind power installation | |
| CN109268443B (en) | Quasi-zero rigidity positive rigidity adjusting method, quasi-zero rigidity adjusting method and vibration isolator | |
| CN103775550B (en) | Single-degree-of-freedom magnetic force isolation mounting | |
| CN107061587A (en) | A kind of axial current vortex system of double-deck permanent-magnet type moves back counterrecoil mechanism | |
| CN110984418B (en) | Adjustable ultra-low frequency vertical eddy current tuned mass damper | |
| US8910963B2 (en) | Suspension fork, in particular for a bicycle | |
| CN104455139B (en) | Spring vibration isolation device based on self-adaptive electromagnetic damping and vibration isolating method | |
| WO2006102207A3 (en) | Electromagnetic motor to create a desired low frequency vibration or to cancel an undesired low frequency vibration | |
| CN109027090A (en) | Ternary vibration absorber, design and the assembly method of parallel connection damping and used matter unit | |
| CN110805645B (en) | Flexible supporting electromagnetic quasi-zero stiffness vibration isolation device | |
| CN104595402A (en) | Electromagnetic branch circuit damping vibration absorber adopting ring-shaped permanent magnet | |
| US6405841B1 (en) | Electromagnetic shock absorber | |
| CN106015420A (en) | Semi-active vibration control eddy current damper | |
| CN1807922A (en) | Magnetic levitation type spring buffer shock absorber | |
| CN108425986B (en) | Cylindrical eddy current damping device, damping adjustment method and bridge vibration reduction structure | |
| CN111677799B (en) | Three-degree-of-freedom electromagnetic vibration isolator based on horizontal pre-pressing spring | |
| CN106761005B (en) | A kind of unlocking structure of permanent-magnetism electromagnetic intermodulation | |
| CN209067730U (en) | The ternary vibration absorber of parallel connection damping and used matter unit | |
| CN110984664A (en) | Multistage inductance tuning mass damper | |
| CN208153613U (en) | A kind of MR damper | |
| Hong et al. | Magnetic circuit design and computation of a magnetorheological damper with exterior coil | |
| CN109163046A (en) | Ternary vibration absorber, design and the assembly method of parallel connection used matter and spring unit | |
| CN207080542U (en) | A kind of double-deck permanent-magnet type axial direction current vortex system moves back counterrecoil mechanism | |
| US11967875B2 (en) | Electromagnetic linear actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |
|
| RJ01 | Rejection of invention patent application after publication |