CN113883222A - Multi-line spectrum frequency vibration reduction device with adjustable parameters - Google Patents
Multi-line spectrum frequency vibration reduction device with adjustable parameters Download PDFInfo
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- CN113883222A CN113883222A CN202111088870.5A CN202111088870A CN113883222A CN 113883222 A CN113883222 A CN 113883222A CN 202111088870 A CN202111088870 A CN 202111088870A CN 113883222 A CN113883222 A CN 113883222A
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- frequency vibration
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- bottom plate
- reduction device
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- 230000009467 reduction Effects 0.000 title claims abstract description 21
- 238000001228 spectrum Methods 0.000 title claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 230000003595 spectral effect Effects 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 description 16
- 238000004806 packaging method and process Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
- F16F15/035—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means by use of eddy or induced-current damping
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a parameter-adjustable multi-line spectrum frequency vibration reduction device. The invention comprises the following steps: the electromagnetic unit is arranged between the top plate and the bottom plate and comprises an electromagnet for generating a magnetic field; the rotor mass unit comprises a rotor mass block and an elastic element, the rotor mass block is connected with a conductive and non-conductive metal piece, and two ends of the mass block are connected to the top plate and the bottom plate through the elastic element respectively; the magnetic field intensity of the electromagnet is adjusted by controlling the current in the electromagnet coil, and the rotor mass block reciprocates in the vertical direction between the top plate and the bottom plate through the elastic element to drive the metal piece to move in the magnetic field, so that eddy current damping is generated. The invention realizes the damping adjustment of the mass spring system by adjusting the size of the magnetic field through the electromagnet by utilizing the eddy current phenomenon generated by the movement of the conductive non-magnetic metal in the magnetic field.
Description
Technical Field
The invention relates to the technical field of vibration control, in particular to a multi-line spectrum frequency vibration reduction device with adjustable parameters.
Background
The vibration phenomenon is ubiquitous in daily life, such as vibration of a bridge under excitation of wind, earthquake and the like, vibration of vehicles and ships during running, vibration of strings and the like. For most machines and structures, vibrations are generally considered to be harmful, for example, vibrations may reduce the accuracy of the use of the instrument, shorten the life of the machine, and the like. Therefore, the harmful vibration is effectively controlled.
The dynamic vibration absorber is an effective vibration reduction measure. The dynamic vibration absorber is composed of mass, spring and damping element, the dynamic vibration absorber is attached to the main vibration system as a subsystem, as long as the vibration natural frequency of the vibration absorber is the same as the vibration frequency of the main vibration system, the vibration of the main vibration system can be effectively inhibited or eliminated, no external energy is needed, when the excitation force frequency is stable, the vibration attenuation effect of the vibration absorber is the best, and the device has simple structure, so that the dynamic vibration absorber is widely applied in engineering practice.
However, the conventional dynamic vibration absorber can only control a single frequency, that is, only the vibration at the natural frequency of the dynamic vibration absorber is reduced, and meanwhile, the dynamic vibration absorber needs to be added with proper damping, because the dynamic vibration absorber can generate a new modal frequency near the frequency on a main system while reducing the line spectrum vibration at the working frequency of the dynamic vibration absorber, the amplitude of the newly generated modal frequency is greatly suppressed by the proper damping, but the conventional vibration absorber cannot effectively adjust the damping in the prior art, the vibration reduction line spectrum frequency is single, the vibration reduction line spectrum frequency cannot be adjusted, and the applicability is poor.
Disclosure of Invention
Therefore, the invention aims to solve the technical problems that the traditional vibration absorber cannot realize effective damping adjustment, has single vibration-damping line spectrum frequency, cannot adjust the vibration-damping line spectrum frequency and has poor applicability.
In order to solve the above technical problem, the present invention provides a multi-line spectrum frequency vibration reduction device with adjustable parameters, comprising: the electromagnetic unit is arranged between the top plate and the bottom plate and comprises an electromagnet for generating a magnetic field; the rotor mass unit comprises a rotor mass block and an elastic element, the rotor mass block is connected with a conductive and non-conductive metal piece, and two ends of the mass block are connected to the top plate and the bottom plate through the elastic element respectively; the magnetic field intensity of the electromagnet is adjusted by controlling the current in the electromagnet coil, and the rotor mass block reciprocates in the vertical direction between the top plate and the bottom plate through the elastic element to drive the metal piece to move in the magnetic field, so that eddy current damping is generated.
In one embodiment of the present invention, the mover mass includes mounting grooves symmetrically disposed at upper and lower ends of the mover mass, and the elastic element is a coil spring mounted in the mounting grooves.
In an embodiment of the invention, the mover mass unit further includes a guide shaft, the guide shaft passes through the mounting grooves at the upper and lower ends of the mover mass block, the spiral spring is sleeved on the guide shaft, and the upper and lower ends of the guide shaft are respectively connected with the top plate and the bottom plate.
In one embodiment of the invention, two mounting grooves symmetrically arranged along the longitudinal section of the rotor mass block are arranged at the upper end and the lower end of the rotor mass block.
In one embodiment of the present invention, the electromagnetic unit further comprises: the mounting bracket is vertically distributed with a plurality of electromagnets along the mounting bracket, and the electromagnets are mounted on the mounting bracket through fixing bolts.
In one embodiment of the invention, the number of the rotor mass units is four, two rotor mass units are symmetrically arranged along the transverse direction of the mounting bracket, two rotor mass units are symmetrically arranged along the longitudinal direction of the mounting bracket, and each rotor mass unit is used for damping one line spectrum frequency vibration.
In one embodiment of the invention, the metal piece is an aluminum plate.
In one embodiment of the invention, the number of the electromagnets is four, and the respective magnetic poles of the four electromagnets are respectively opposite to each aluminum plate in the four aluminum plates.
In one embodiment of the invention, threaded holes are distributed on the outer wall of the rotor mass block, and the threaded holes are used for installing counterweight bolts.
In one embodiment of the invention, the top plate and the bottom plate are further provided with packaging side plates, and the packaging side plates are respectively connected with the top plate and the bottom plate through bolts.
Compared with the prior art, the technical scheme of the invention has the following advantages:
firstly, the eddy current damping is adjusted by adjusting the magnetic force of the current adjusting electromagnet, and because the damping in the actual physical structure is not easy to realize, damping materials such as rubber are generally added, but all damping materials can introduce rigidity at the same time, the working frequency of the dynamic vibration absorber can be changed, and the control effect is influenced. Meanwhile, the magnitude of the damping can not be controllably adjusted, the danger of additional rigidity is avoided by adjusting the magnitude of the magnetic force of the electromagnet through adjusting the current, and the continuous and controllable adjustment of the damping can be realized through adjusting the current, so that the optimal damping of the dynamic vibration absorber can be obtained;
the device of the embodiment of the invention can comprise four groups of single-degree-of-freedom mass spring systems with different parameters, namely four springs with the stiffness k1～k4The mass of the corresponding four rotors is m1～m4The vibration damper has four working frequencies simultaneously, and can simultaneously reduce four line spectrum (or modal frequency) vibration responses of structural vibration responses; through parameter design, the combination of any frequency can be customized according to actual needs in a targeted manner, in addition, each group of mass spring systems is provided with an independent electromagnet unit, the damping adjustment of the mass spring systems is realized by adjusting the size of a magnetic field through electromagnets, and the independent adjustment of the damping of different mass spring systems can be realized;
thirdly, in practical engineering, the rigidity of the spring cannot be accurately and quantitatively determined in the manufacturing process, so that the natural frequency of the manufactured dynamic vibration absorber has deviation from the design frequency, and the vibration reduction effect is influenced;
and fourthly, mounting a thin aluminum plate with a certain thickness on each rotor mass block, wherein the thickness direction of the aluminum plate is opposite to the magnetic pole of the electromagnet in the device, and the damping adjustment of the mass spring system is realized by utilizing the eddy current phenomenon generated by the movement of the conductive non-magnetic metal in a stable magnetic field.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic diagram of the overall structure of the parameter-adjustable multi-spectral frequency vibration reduction device (omitting the side plate of the package) according to the present invention.
Fig. 2 is a front view schematically showing the structure of fig. 1.
Fig. 3 is a sectional view a-a of fig. 2.
Fig. 4 is a schematic view of the mounting bracket structure of the present invention.
FIG. 5 is a schematic diagram of the overall structure of the multi-spectral frequency vibration reduction device with adjustable parameters of the present invention.
The specification reference numbers indicate: 1. a top plate; 2. a base plate; 3. an electromagnetic unit; 31. an electromagnet; 32. mounting a bracket; 33. fixing the bolt; 4. a mover mass unit; 41. a rotor mass block; 411. a threaded hole; 42. an elastic element; 43. a metal member; 44. mounting grooves; 45. a guide shaft; 5. and packaging the side plates.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1 to 5, the multi-line spectrum frequency vibration reduction device with adjustable parameters of the present invention includes: the device comprises a top plate 1, a bottom plate 2, an electromagnetic unit 3 and a rotor quality unit 4; the electromagnetic unit 3 is arranged between the top plate 1 and the bottom plate 2, and the electromagnetic unit 3 comprises an electromagnet 31 for generating a magnetic field; the mover mass unit 4 comprises a mover mass block 41 and an elastic element 42, the mover mass block 41 is connected with a conductive and non-conductive metal piece 43, and two ends of the mass block are respectively connected to the top plate 1 and the bottom plate 2 through the elastic element 42; the metal piece 43 is preferably an aluminum plate with a certain thickness.
The magnetic field intensity of the electromagnet 31 is adjusted by controlling the current in the coil of the electromagnet 31, and the mover mass block 41 reciprocates in the vertical direction between the top plate 1 and the bottom plate 2 through the elastic element 42, so as to drive the metal piece 43 to move in the magnetic field, thereby generating eddy current damping.
Specifically, the mover mass block 41 includes mounting grooves 44 symmetrically disposed at upper and lower ends of the mover mass block 41, the elastic element 42 is a coil spring, the coil spring is mounted in the mounting grooves 44, the mover mass unit 4 further includes a guide shaft 45, the guide shaft 45 passes through the mounting grooves 44 at the upper and lower ends of the mover mass block 41, the coil spring is sleeved on the guide shaft 45, and the upper and lower ends of the guide shaft 45 are respectively connected with the top plate 1 and the bottom plate 2.
Specifically, the upper and lower ends of the mover mass 41 are respectively provided with two mounting grooves 44 symmetrically arranged along the longitudinal section of the mover mass 41, so that the upper and lower ends of the mover mass 41 can better vibrate up and down along the guide shaft 45 under the action of the coil springs.
Specifically, the electromagnetic unit 3 further includes: the mounting bracket 32 is vertically distributed with four electromagnets 31 along the mounting bracket 32, the electromagnets 31 are mounted on the mounting bracket 32 through fixing bolts 33, the number of the rotor mass units 4 is four, two rotor mass units 4 are symmetrically arranged along the transverse direction of the mounting bracket 32, two rotor mass units 4 are symmetrically arranged along the longitudinal direction of the mounting bracket 32, and each rotor mass unit 4 is used for reducing the vibration of one line spectrum frequency; the electromagnet 31 includes a cylindrical iron core and a coil, and respective cylindrical ends of the four cylindrical iron cores are respectively opposite to an aluminum plate. Through the structural arrangement, the rotor mass block 41 and the elastic element are restricted by the guide shaft 4542 form a single degree of freedom mass spring system, and the device of this embodiment may comprise four sets of single degree of freedom mass spring systems of different parameters, i.e. four spring rates k1～k4The mass of the corresponding four rotors is m1～m4. The invention has four working frequencies simultaneously, and can simultaneously reduce four line spectrum (or modal frequency) vibration responses of the structural vibration response. By parameter design, the combination of any frequency can be customized according to actual needs in a targeted manner. In addition, each group of mass spring systems is provided with an independent electromagnet 31 unit, so that independent adjustment of damping of different mass spring systems can be realized.
Specifically, threaded holes 411 are distributed on the outer wall of the mover mass block 41, and the threaded holes 411 are used for installing counterweight bolts. Through the structural arrangement, the weight of the rotor mass block 41 can be adjusted in a mode of increasing or decreasing the counterweight bolts, and the rotor mass block is used for fine adjustment of line spectrum frequency and correction when small deviation occurs to the line spectrum frequency.
Specifically, the top plate 1 and the bottom plate 2 are further provided with packaging side plates 5, and the packaging side plates 5 are respectively connected with the top plate 1 and the bottom plate 2 through bolts. Through the structural arrangement, the electromagnetic unit 3 and the rotor quality unit 4 in the vibration damper can be protected.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. 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. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. A multi-spectral frequency vibration canceling device with adjustable parameters, comprising:
a top plate and a bottom plate;
the electromagnetic unit is arranged between the top plate and the bottom plate and comprises an electromagnet for generating a magnetic field;
the rotor mass unit comprises a rotor mass block and an elastic element, the rotor mass block is connected with a conductive and non-conductive metal piece, and two ends of the mass block are connected to the top plate and the bottom plate through the elastic element respectively;
the magnetic field intensity of the electromagnet is adjusted by controlling the current in the electromagnet coil, and the rotor mass block reciprocates in the vertical direction between the top plate and the bottom plate through the elastic element to drive the metal piece to move in the magnetic field, so that eddy current damping is generated.
2. The multi-spectral frequency vibration reduction device with adjustable parameters according to claim 1, wherein the mover mass includes mounting grooves symmetrically formed at upper and lower ends of the mover mass, and the elastic element is a coil spring mounted in the mounting grooves.
3. The multi-line spectrum frequency vibration reduction device with adjustable parameters of claim 2, wherein the mover mass unit further comprises a guide shaft, the guide shaft passes through mounting grooves at the upper end and the lower end of the mover mass block, the spiral spring is sleeved on the guide shaft, and the upper end and the lower end of the guide shaft are respectively connected with the top plate and the bottom plate.
4. The multi-line-spectrum-frequency vibration reduction device with adjustable parameters according to claim 3, wherein two mounting grooves are symmetrically arranged along a longitudinal section of the rotor mass block at both the upper end and the lower end of the rotor mass block.
5. The multi-spectral frequency vibration reduction apparatus according to claim 1, wherein the electromagnetic unit further comprises: the mounting bracket is vertically distributed with a plurality of electromagnets along the mounting bracket, and the electromagnets are mounted on the mounting bracket through fixing bolts.
6. The multi-spectral frequency vibration reduction device with adjustable parameters according to claim 1, wherein the number of the mover mass units is four, two mover mass units are symmetrically arranged along the transverse direction of the mounting bracket, two mover mass units are symmetrically arranged along the longitudinal direction of the mounting bracket, and each mover mass unit is used for reducing one spectral frequency vibration.
7. The multi-line spectrum frequency vibration reduction device with adjustable parameters according to any one of claims 1 to 6, wherein the metal member is an aluminum plate.
8. The multi-line spectrum frequency vibration reduction device with adjustable parameters of claim 7, wherein the number of the electromagnets is four, and the magnetic poles of the four electromagnets are respectively opposite to each aluminum plate in the four aluminum plates.
9. The multi-line spectrum frequency vibration reduction device with adjustable parameters of claim 7, wherein threaded holes are distributed on the outer wall of the rotor mass block, and the threaded holes are used for installing counterweight bolts.
10. The multi-spectral frequency vibration reduction device according to claim 7, wherein the top plate and the bottom plate are further provided with encapsulated side plates, and the encapsulated side plates are respectively connected with the top plate and the bottom plate through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111088870.5A CN113883222A (en) | 2021-09-16 | 2021-09-16 | Multi-line spectrum frequency vibration reduction device with adjustable parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111088870.5A CN113883222A (en) | 2021-09-16 | 2021-09-16 | Multi-line spectrum frequency vibration reduction device with adjustable parameters |
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| Publication Number | Publication Date |
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| CN113883222A true CN113883222A (en) | 2022-01-04 |
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| CN202111088870.5A Pending CN113883222A (en) | 2021-09-16 | 2021-09-16 | Multi-line spectrum frequency vibration reduction device with adjustable parameters |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003307255A (en) * | 2002-04-15 | 2003-10-31 | Toshiba Corp | Magnetic spring damping device |
| US20110316206A1 (en) * | 2010-06-23 | 2011-12-29 | PAVCO Co., Ltd. | Active dynamic vibration absorber apparatus for vehicle |
| CN202117195U (en) * | 2011-06-13 | 2012-01-18 | 天津商业大学 | Vibration absorber with multiple natural frequencies |
| CN105317912A (en) * | 2015-11-13 | 2016-02-10 | 哈尔滨工程大学 | Wideband semi-active vibration absorber with adjustable rigidity and damping |
| CN106151341A (en) * | 2015-04-02 | 2016-11-23 | 陕西飞机工业（集团）有限公司 | A kind of multiple degrees of freedom dynamic vibration absorber |
| CN206128342U (en) * | 2016-09-07 | 2017-04-26 | 同济大学 | A vertical tuned mass damper for model test |
| CN206592468U (en) * | 2017-03-27 | 2017-10-27 | 重庆理工大学 | A kind of dynamic vibration absorber of frequency-adjustable |
| CN109811639A (en) * | 2019-01-25 | 2019-05-28 | 东南大学 | Intelligent vibration damping device and its control method based on Parameter adjustable section damper system |
| CN210177731U (en) * | 2019-04-29 | 2020-03-24 | 上海蓝科建筑减震科技股份有限公司 | Tunable-frequency damping eddy current tuned mass damper |
| CN110939679A (en) * | 2019-12-25 | 2020-03-31 | 中国科学院沈阳自动化研究所 | Semi-active vibration isolation system |
-
2021
- 2021-09-16 CN CN202111088870.5A patent/CN113883222A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003307255A (en) * | 2002-04-15 | 2003-10-31 | Toshiba Corp | Magnetic spring damping device |
| US20110316206A1 (en) * | 2010-06-23 | 2011-12-29 | PAVCO Co., Ltd. | Active dynamic vibration absorber apparatus for vehicle |
| CN202117195U (en) * | 2011-06-13 | 2012-01-18 | 天津商业大学 | Vibration absorber with multiple natural frequencies |
| CN106151341A (en) * | 2015-04-02 | 2016-11-23 | 陕西飞机工业（集团）有限公司 | A kind of multiple degrees of freedom dynamic vibration absorber |
| CN105317912A (en) * | 2015-11-13 | 2016-02-10 | 哈尔滨工程大学 | Wideband semi-active vibration absorber with adjustable rigidity and damping |
| CN206128342U (en) * | 2016-09-07 | 2017-04-26 | 同济大学 | A vertical tuned mass damper for model test |
| CN206592468U (en) * | 2017-03-27 | 2017-10-27 | 重庆理工大学 | A kind of dynamic vibration absorber of frequency-adjustable |
| CN109811639A (en) * | 2019-01-25 | 2019-05-28 | 东南大学 | Intelligent vibration damping device and its control method based on Parameter adjustable section damper system |
| CN210177731U (en) * | 2019-04-29 | 2020-03-24 | 上海蓝科建筑减震科技股份有限公司 | Tunable-frequency damping eddy current tuned mass damper |
| CN110939679A (en) * | 2019-12-25 | 2020-03-31 | 中国科学院沈阳自动化研究所 | Semi-active vibration isolation system |
Non-Patent Citations (1)
| Title |
|---|
| 王梁坤;施卫星;鲁正: "电涡流TMD阻尼特性的有限元模拟与参数优化", 《结构工程师》 * |
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