CN106596017A - Eddy current damping characteristic testing device - Google Patents
Eddy current damping characteristic testing device Download PDFInfo
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- CN106596017A CN106596017A CN201611152778.XA CN201611152778A CN106596017A CN 106596017 A CN106596017 A CN 106596017A CN 201611152778 A CN201611152778 A CN 201611152778A CN 106596017 A CN106596017 A CN 106596017A
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- eddy
- current damping
- damping characteristic
- cantilever beam
- test device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention provides an eddy current damping characteristic testing device, comprising: a bottom plate, support plate, a screw nut mechanism, a guide rail, an L-shaped plate, a vertical beam, a support member and a cantilever beam wherein the guide rail, the vertical beam and the screw nut mechanism are mounted on the bottom plate. The eddy current damping characteristic testing device further comprises: an exciter, a force hammer, an accelerometer, a data acquisition card, a computer, a neodymium magnet disposed on the L-shaped plate, a scale A provided on the guide rail, and a scale B provided on the vertical beam. The vertical beam is fixedly connected to one end of the bottom plate through a bolt; the screw nut mechanism is installed at the other end of the bottom plate; the guide rail is mounted at two sides of the screw of the screw nut mechanism and is parallel with the screw. Through the adjustment of the screw nut mechanism, it is possible to enable the support plate and the L-shaped plate in connection with the support plate to slide on the guide rail. One end of the support structure is connected with the cantilever beam while the other end of the support structure can cooperate with the vertical beam in a vertically sliding manner so that the cantilever beam can be driven to slide vertically.
Description
Technical field
The invention belongs to mechanical vibration field, more particularly to a kind of eddy-current damping characteristic test device, which is intended to test
Can be used for the device of the eddy-current damping of suppression mechanical vibration.The eddy-current damping characteristic test device is additional to vibrating cantalever beam
Magnetic field produces eddy-current damping effect, and the eddy-current damping characteristic test device can be by changing magnetic induction line and cantilever beam vibration
The position relationship in face, magnetic field intensity, cantilever material, cantilever beam frequency of vibration and speed, cantilever beam and Magnet distance are to electric whirlpool
The variation characteristic of flow resistance damping characteristics is analyzed.
Background technology
Mechanical vibration are prevalent in various plant equipment.Vibratory output exceed allowed band, plant equipment will produce compared with
Big dynamic loading and noise, so as to affect its service behaviour and service life, can cause the initial failure of parts when serious.By
Increasingly complicated in modern mechanical structure, movement velocity is increasingly improved, and the harm of vibration is more projected.
Existing mechanical vibration control method can be largely classified into two big class of active damping and passive vibration damping.Passive vibration damping
Passive vibration damping is, and is fitted without dedicated energy device and energy is provided, by negative work being done to vibration insulating system, consume its vibrational energy
Amount, realizes vibration suppression.Passive vibration damping can be divided into dynamic absorber and passive energy dissipation again.Apparatus of the present invention current vortex resistance to be tested
Buddhist nun belongs to the one kind in passive energy dissipation method, and its mechanism of action is based on electromagnetic induction principle.
Specifically, according to the law of electromagnetic induction, a part of conductor of closed circuit does the fortune of cutting magnetic induction line in magnetic field
When dynamic, faradic current in conductor, can be produced；Can be obtained by Lenz's law, faradic magnetic field always hinders to cause faradic
The change of magnetic flux.Based on the faradic current for producing, the effect counter-force of an obstruction conductor motion will be produced in magnetic field, this
Theory shows to increase system damping using the current vortex in electromagnetic induction principle produced by conductor motion, so as to consume machinery
Vibrational energy in equipment.
Affect the factor of eddy-current damping characteristic to have a lot, including magnetic field intensity, conductor material, magnetic field arrangement, shake
Dynamic frequency and speed etc..As its theoretical modeling is complicated, patent of the present invention is directed to a kind of test device, by the side tested
Method carries out quantitative analyses to above-mentioned factor.
The content of the invention
The purpose of the present invention be can impact of the quantitative analyses multiple parameters to eddy-current damping characteristic, the purpose is to pass through
What technical scheme below was realized.
A kind of eddy-current damping characteristic test device, the eddy-current damping characteristic test device include：Base plate, support
Plate, guide rail, screw-nut body, L shaped plate, vertical beam, supporting member and cantilever beam, the guide rail, vertical beam and leading screw spiral shell
Parent agency be arranged on base plate on, also, the eddy-current damping characteristic test device also include vibrator, power hammer, accelerometer,
Data collecting card, computer, the neodium magnet being arranged in the L shaped plate, the rule A being arranged on the guide rail, be arranged on it is perpendicular
Rule B on straight beam, the vertical beam are bolted to connection in one end of the base plate, the screw-nut body peace
The base plate other end is mounted in, wherein the guide rails assembling is in the leading screw both sides of the screw-nut body and flat with the leading screw
OK, the L shaped plate by adjusting the screw-nut body and can make the gripper shoe and being connected with the gripper shoe is existed
Slide on the guide rail, one end of the supporting member is connected with the cantilever beam, the other end of the supporting member is can erect
The straight mode slided is coordinated with the vertical beam such that it is able to drive the cantilever beam vertically to slide.
Further, the base plate is the thin plate for being shaped as L-shaped.
Further, two axial end portions in the leading screw are provided with bearing respectively, and the bearing is fixed by bolt
On the base plate.
Further, the leading screw is fixedly connected with handwheel, and the nut of the screw-nut body is located on the leading screw,
When the leading screw is rotated, the nut can do linear movement.
Further, the gripper shoe be used for the ut socket for connecting the L shaped plate and the screw-nut body and
Can move on the guide rail, the L shaped plate is installed by bolt in the upper end of the gripper shoe, and the lower end of the gripper shoe leads to
Cross and be bolted on the ut socket, the ut socket is arranged on the nut, and the lower end of the gripper shoe also sets
There is gathering sill, the gathering sill is coordinated with the guide rail, and then enable the L shaped plate with the nut along the guide rail
Motion.
Further, the supporting member is made up of square box and two thin plates, and the square box can be enclosed within described perpendicular
Can move on straight beam and along the vertical beam, the square box is provided with a screwed hole, and bolt can pass through the screw thread
Hole is contacted with the vertical beam and then the supporting member is fixed with the vertical beam and realizes that position is adjustable, described two
Thin plate is used to fix the cantilever beam, has two screwed holes on one of thin plate, and during installation, the cantilever beam is attached to another
On thin plate, bolt is through the screwed hole until contacting with the cantilever beam so that the cantilever beam is fixed on the support structure
On part.
Further, the rule A can accurately record the position of the L shaped plate, and the neodium magnet passes through adhesive
It is bonded in the L shaped plate, changes Magnet quantity and then control magnetic field intensity in order to convenient in test process.
Further, the rule B can accurately record the position of the cantilever beam.
Further, the rule A and rule B constitutes an x-z coordinate system, with rule A as x-axis, with
Rule B is z-axis, and the neodium magnet can be moved in the x direction, and the cantilever beam can be moved in a z-direction, and then can
Precise control is carried out to the distance of the cantilever beam and the neodium magnet.
Further, the power hammer and the accelerometer are connected to the data collecting card, and the data collecting card connects
The computer is connected to, the accelerometer is attached on the cantilever beam, hammers the certain point tapped on the cantilever beam with the power into shape,
Frequency response curve is included carrying out on the computer qualitative analyses of eddy-current damping effect, or, with the vibrator to institute
State cantilever beam and apply the vibration of a characteristic frequency so as to carry out the quantitative test of eddy-current damping effect, the eddy-current damping
Characteristic test device can pass through to change the position relationship of magnetic induction line and cantilever beam vibration plane, magnetic field intensity, cantilever material, outstanding
Arm beam vibration frequency is analyzed to the variation characteristic of eddy-current damping characteristic with speed, cantilever beam and Magnet distance.
It is an advantage of the current invention that：
1st, distance, cantilever beam vibration of the apparatus of the present invention by change magnetic field intensity, cantilever material, cantilever beam and Magnet
The parameters such as frequency, can impact of the quantitative analyses multiple parameters to eddy-current damping characteristic；
2nd, apparatus of the present invention have two kinds of magnetic field arrangement forms of vertical direction and horizontal direction, can test magnetic induction line respectively and hang
When arm beam vibration face is vertical, magnetic induction line it is parallel with cantilever beam vibration plane when inhibition of vibration；
3rd, apparatus of the present invention adopt vibrator excitation cantilever arm beam, can accurately test different vibration velocities and frequency lower cantalever
The eddy-current damping characteristic of beam；
4th, apparatus of the present invention paste accelerometer on a cantilever beam, with reference to the use of data collecting card and analysis software,
Vibration data is obtained in real time can；
5th, the conveniently adjusted various parameters of eddy-current damping characteristic test device of the present invention, simple to operate, it is easy to using with
Promote.
Description of the drawings
By the detailed description for reading hereafter preferred implementation, various other advantages and benefit are common for this area
Technical staff will be clear from understanding.Accompanying drawing is only used for the purpose for illustrating preferred implementation, and is not considered as to the present invention
Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical part.In the accompanying drawings：
Fig. 1 is the axonometric chart of eddy-current damping characteristic test device of the present invention；
Fig. 2 is the top view of eddy-current damping characteristic test device of the present invention；
Fig. 3 is the profile that the line A-A along Fig. 1 of eddy-current damping characteristic test device of the present invention is intercepted；
Fig. 4 is the profile that the line B-B along Fig. 1 of eddy-current damping characteristic test device of the present invention is intercepted；
Fig. 5 is eddy-current damping characteristic test device of the present invention ground test philosophy figure；
Fig. 6 is the magnetic field arrangement figure of eddy-current damping characteristic test device of the present invention；
Fig. 7 is the neodium magnet location drawing of eddy-current damping characteristic test device of the present invention.
Reference in accompanying drawing is：
1- base plate 201- bearing A 202- leading screws
203- bearing B 204- handwheel 205- nuts
206- ut socket 301- guide rail A 302- guide rail B
4- gripper shoe 5-L shape plate 6- cantilever beams
7- supporting member 8- vertical beam 9- bolts
10- neodium magnet 11- rule A 12- rule B
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing in accompanying drawing public
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure and the reality that should not be illustrated here
The mode of applying is limited.On the contrary, there is provided these embodiments are able to be best understood from the disclosure, and can be by this public affairs
What the scope opened was complete conveys to those skilled in the art.
The present invention is described in further detail below in conjunction with the accompanying drawings.
The invention provides a kind of eddy-current damping characteristic test device, as shown in Figure 1, Figure 2, Figure 3, Figure 4, the current vortex
Damping characteristic test device includes base plate 1, screw-nut body, guide rail, gripper shoe 4, L shaped plate 5, cantilever beam 6, vertical beam 8, spiral shell
Bolt 9, neodium magnet 10,11- rule A, 12- rule B.
In the eddy-current damping characteristic test device of the present invention, base plate 1 is the thin plate of a L-shaped, is provided with base plate 1
Guide rail, vertical beam 8 and screw-nut body.It is fixed together by bolt 9 between vertical beam 8 and base plate 1, vertical beam 8
The groove for vertically extending is provided with, for installing rule 12.Guide rail 3 is fixedly connected on base plate 1, such as by bolt 9
Shown in Fig. 4, bearing 201 and bearing 203 are bolted to connection on base plate 1, and wherein the distance between two bearings are equal to and lead
The length of rail 3, respectively positioned at two axial end portions of leading screw 202, guide rail 3 is located at 202 both sides of leading screw and phase to two bearings 201,203
It is mutually parallel.Handwheel 204 and leading screw 202 are fixed together.Nut 205 is located between two bearings 201,203 and can be along leading screw
202 motions.
Gripper shoe 4 is used to connect L shaped plate 5 and ut socket 206 and can move on guide rail, and 4 upper end of gripper shoe passes through
Bolt 9 is fixedly connected L shaped plate 5, and 4 lower end of gripper shoe is fixed on ut socket 206 by bolt 9, and ut socket 206 is arranged on
On nut 205.There is gathering sill 4 lower end of gripper shoe, and this gathering sill is slidably coordinated with guide rail 3, and then can make L shaped plate
5 are moved along guide rail 3 together with nut 205.
Supporting member 7 is used for connecting cantilever beam 6 and vertical beam 8, and supporting member 7 is made up of square box and two thin plates, side
Shape frame can be enclosed within vertical beam 8 and can slide on vertical beam 8, and square box is provided with a screwed hole, and bolt 9 may pass through the spiral shell
Pit is contacted with vertical beam 8 and then supporting member 7 is fixed with vertical beam 8 and realizes that position is adjustable, shown in Fig. 2；Support structure
Two thin plates of part 7 are used for cantilever mounted beam 6, have two screwed holes on one of thin plate, and during installation, cantilever beam 6 is attached to another
On individual thin plate, bolt 9 is contacted through screwed hole with cantilever beam 6 makes cantilever beam 8 be fixed on supporting member 7.
Rule 11 (scale division value 0.5mm) is installed on guide rail 301, the position of L shaped plate 5 can be accurately recorded.In L shaped plate 5
Neodium magnet 10 is installed, neodium magnet 10 is bonded in L shaped plate 5 by adhesive, it is convenient in test process to change Magnet quantity,
10 distributing position of neodium magnet is shown in Fig. 7.The quantity that neodium magnet can be passed through to change controls magnetic field intensity.The vertical beam 8 is provided with recessed
Groove, is provided with rule 12 (scale division value 0.5mm) in groove, can accurately record the position of cantilever beam 6.
Above-mentioned rule 11 and rule 12 just constitute an x-z coordinate system, and with rule 11 as x-axis, rule 12 is z
Axle, then neodium magnet 10 can move in the x direction, cantilever beam 6 can be moved in a z-direction, and then can be to cantilever beam 6 and neodium magnet 10
Distance carry out precise control.
Four positions of the neodium magnet 10 on L-type plate and numbering are as shown in Figure 7.Water between neodium magnet 10 and cantilever beam 6
Flat distance is adjusted by handwheel 204, and the distance of its vertical direction moves to adjust by supporting member 7 on vertical beam 8.
Need to be included with the position that bolt is fixedly connected in the eddy-current damping characteristic test device：Guide rail 3 and base plate
1st, bearing 2 and base plate 1, vertical beam 8 and base plate 1, gripper shoe 4 and ut socket 206, L shaped plate 5 and gripper shoe 4, supporting member 7
With cantilever beam 6, supporting member 7 and vertical beam 8.
The eddy-current damping characteristic test device also includes power hammer, vibrator, accelerometer, data collecting card, computer
(being used for data display), as shown in Figure 5.Simple hammering is carried out on this device respectively as the case may be to test and characteristic frequency
Vibration suppression is tested.Simple hammering experiment is primarily to prove that the eddy-current damping characteristic that apparatus of the present invention are adopted can be used to
Suppress vibration.Vibration suppression experiment under characteristic frequency is mainly optimized design to inhibition of vibration, determines with optimal vibration suppression
Parameter value during effect.
In simply hammering experiment, firmly hammer percussion cantilever beam makes which produce vibration, and accelerometer is placed near beating point and uses
To gather cantilever Liang Sicheng, accelerometer and power hammer are all connected on data collecting card, by the data of data acquisition to computer point
Contrasted and processed in analysis software, compared the displacement of the impulsive force and accelerometer of power hammer, produce frequency response figure, calculate the resistance of beam
Buddhist nun's ratio, draws the attenuating of cantilever beam vibration.
In characteristic frequency vibration suppression experiment, the vibration of characteristic frequency, acceleration are produced using vibrator to cantilever beam
Meter is placed on impacting point nearby for gathering cantilever Liang Sicheng, and accelerometer and vibrator are all connected on data collecting card, by number
Contrasted and processed according to collecting in the data analysis software of computer, compared the position of the impulsive force and accelerometer of vibrator
Move, produce frequency response figure, calculate the damping ratio of beam, draw the attenuation of cantilever beam vibration, when Fig. 5 is using 3, No. 4 neodium magnets
The schematic diagram of characteristic frequency vibration suppression experiment.
Cantilever beam in the eddy-current damping characteristic test device can adopt the metal of different materials, different metal tools
There are different conductivitys, the eddy-current damping characteristic test device can test damping characteristic of the eddy-current damping to different metal,
Such as aluminum, copper, ferrum etc..
The eddy-current damping characteristic test device can change magnetic field intensity and magnetic field arrangement form.Wherein change magnetic field strong
Degree can be realized by the quantity of change neodium magnet.The eddy-current damping characteristic test device has two kinds of magnetic field arrangement forms, such as
Shown in Fig. 6, can test respectively magnetic induction line it is vertical with cantilever beam vibration plane when, magnetic induction line it is parallel with cantilever beam vibration plane when vibration suppression
Effect.
The eddy-current damping characteristic test device can change the distance between neodium magnet and cantilever beam, this distance available quarter
Degree chi A (scale division value 0.5mm) and rule B (scale division value 0.5mm) accurate measurement, therefore eddy-current damping can be tested out in machinery
Distance value during maximum effect is played in vibration damping.
The eddy-current damping characteristic test device of the present invention is by changing the various parameters for affecting eddy-current damping power with excellent
Change inhibition of vibration, be that the theoretical further research of eddy-current damping is laid a good foundation.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Enclose and be defined.
Claims (10)
1. a kind of eddy-current damping characteristic test device, it is characterised in that the eddy-current damping characteristic test device includes：Bottom
Plate, gripper shoe, guide rail, screw-nut body, L shaped plate, vertical beam, supporting member and cantilever beam, wherein the guide rail, described
Vertical beam and the screw-nut body are arranged on the base plate, also, the eddy-current damping characteristic test device is also wrapped
Include vibrator, power hammer, accelerometer, data collecting card, computer, the neodium magnet being arranged in the L shaped plate, be arranged on described leading
Rule A, the rule B being arranged on the vertical beam on rail, the vertical beam are bolted to connection in the bottom
One end of plate, the screw-nut body are arranged on the base plate other end, wherein the guide rails assembling is in the feed screw nut
Leading screw both sides of mechanism and parallel with the leading screw, by adjust the screw-nut body can make the gripper shoe and with
The L shaped plate of the gripper shoe connection is slided on the guide rail, and one end of the supporting member is connected with the cantilever beam,
The other end of the supporting member is coordinated with the vertical beam in the way of it vertically can slide such that it is able to drive the cantilever beam
Vertically slide.
2. eddy-current damping characteristic test device according to claim 1, it is characterised in that the base plate is to be shaped as L
The thin plate of shape.
3. eddy-current damping characteristic test device according to claim 1, it is characterised in that in two axles of the leading screw
Bearing is separately installed with to end, the bearing is by being bolted on the base plate.
4. eddy-current damping characteristic test device according to claim 1, it is characterised in that the leading screw is fixedly connected with
Handwheel, the nut of the screw-nut body are located on the leading screw, and when the leading screw is rotated, the nut can do linearly
Motion.
5. eddy-current damping characteristic test device according to claim 4, it is characterised in that the gripper shoe is used to connect
The ut socket of the L shaped plate and the screw-nut body and can move on the guide rail, the gripper shoe it is upper
The L shaped plate is installed by bolt in end, and the lower end of the gripper shoe is bolted on the ut socket, the nut
Sleeve is arranged on the nut, and the lower end of the gripper shoe is additionally provided with gathering sill, and the gathering sill is coordinated with the guide rail, entered
And the L shaped plate is moved along the guide rail with the nut.
6. eddy-current damping characteristic test device according to any one of claim 1 to 5, it is characterised in that described
Support component is made up of square box and two thin plates, and the square box can be enclosed within the vertical beam and can be along described vertical
Beam is moved, and the square box is provided with a screwed hole, and bolt can be contacted with the vertical beam through the screwed hole and then will
The supporting member is fixed with the vertical beam and realizes that position is adjustable, and described two thin plates are used to fix the cantilever beam,
There are two screwed holes on one of thin plate, the cantilever beam is attached on another thin plate during installation, bolt passes through the screw thread
Hole is until contacting with the cantilever beam so that the cantilever beam is fixed on the supporting member.
7. eddy-current damping characteristic test device according to any one of claim 1 to 5, it is characterised in that the quarter
Degree chi A can accurately record the position of the L shaped plate, and the neodium magnet is bonded in the L shaped plate by adhesive, in order to
It is convenient in test process to change Magnet quantity and then control magnetic field intensity.
8. eddy-current damping characteristic test device according to any one of claim 1 to 5, it is characterised in that the quarter
Degree chi B can accurately record the position of the cantilever beam.
9. eddy-current damping characteristic test device according to any one of claim 1 to 5, it is characterised in that the quarter
The degree chi A and rule B constitutes an x-z coordinate system, with rule A as x-axis, with rule B as z-axis, the neodium magnet
Can move in the x direction, the cantilever beam can be moved in a z-direction, and then can be to the cantilever beam and the neodymium magnetic
The distance of ferrum carries out precise control.
10. eddy-current damping characteristic test device according to any one of claim 1 to 5, it is characterised in that the power
Hammer and the accelerometer are connected to the data collecting card, and the data collecting card is connected to the computer, the acceleration
Meter is attached on the cantilever beam, hammers the certain point tapped on the cantilever beam with the power into shape, frequency response curve is included in the electricity
The qualitative analyses of eddy-current damping effect are carried out on brain, or, one specific frequency is applied to the cantilever beam with the vibrator
So as to carry out the quantitative test of eddy-current damping effect, the eddy-current damping characteristic test device can be by changing for the vibration of rate
Become the position relationship of magnetic induction line and cantilever beam vibration plane, magnetic field intensity, cantilever material, cantilever beam frequency of vibration and speed, hang
Arm beam is analyzed to the variation characteristic of eddy-current damping characteristic with Magnet distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152778.XA CN106596017B (en) | 2016-12-14 | 2016-12-14 | Eddy-current damping characteristic test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152778.XA CN106596017B (en) | 2016-12-14 | 2016-12-14 | Eddy-current damping characteristic test device |
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| CN106596017A true CN106596017A (en) | 2017-04-26 |
| CN106596017B CN106596017B (en) | 2019-01-29 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179515A (en) * | 2017-06-22 | 2017-09-19 | 同济大学 | A kind of eddy current damper health monitoring systems |
| CN107664566A (en) * | 2017-09-21 | 2018-02-06 | 湖北省地震局 | Portable vibration platform calibrating installation |
| CN107941443A (en) * | 2017-12-25 | 2018-04-20 | 上海大学 | A kind of single-degree-of-freedom is vortexed magnetic damping Proof-Of Principle experimental provision |
| CN108318204A (en) * | 2018-03-21 | 2018-07-24 | 天津大学 | A kind of electromagnetic impact vibration testing device |
| CN111458288A (en) * | 2020-05-14 | 2020-07-28 | 中国船舶科学研究中心 | Material damping characteristic testing device |
| CN114061876A (en) * | 2021-10-29 | 2022-02-18 | 哈尔滨工业大学（深圳） | Damping characteristic measuring device |
| CN114812423A (en) * | 2022-04-25 | 2022-07-29 | 山东光安智能科技有限公司 | Mechanical digital disc type roof separation layer sensor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195816A (en) * | 1997-01-07 | 1998-07-28 | Kajima Corp | Non-contact type cable damping device utilizing magnet |
| CN201327685Y (en) * | 2008-12-12 | 2009-10-14 | 韩玉贵 | Visual contrast electromagnetic damping demonstration device |
| CN102031751A (en) * | 2010-12-23 | 2011-04-27 | 湖南大学 | Big-tonnage cantilever type horizontal tuned mass damper for regulating eddy-current damping |
| CN102418769A (en) * | 2011-09-22 | 2012-04-18 | 北京航空航天大学 | Stiffness/damping adjustable double-cantilever beam sealed passive damper |
| KR101209131B1 (en) * | 2012-09-07 | 2012-12-07 | (주)대우건설 | Magnetic damper system for controlling vibration of distortion direction |
| CN202939881U (en) * | 2012-11-16 | 2013-05-15 | 安徽原创科普技术有限公司 | Magnetic damping effect contrast demonstration device |
| CN203085038U (en) * | 2013-01-07 | 2013-07-24 | 吉林大学 | Single-chip microcomputer contrast-type Lenz's law physics demonstration device |
| CN104819233A (en) * | 2015-04-03 | 2015-08-05 | 北京航空航天大学 | Two-freedom-degree electric eddy current tuning passive damper |
| CN104952331A (en) * | 2015-05-25 | 2015-09-30 | 南京新辉科教仪器有限公司 | Magnetic damping pendulum |
-
2016
- 2016-12-14 CN CN201611152778.XA patent/CN106596017B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195816A (en) * | 1997-01-07 | 1998-07-28 | Kajima Corp | Non-contact type cable damping device utilizing magnet |
| CN201327685Y (en) * | 2008-12-12 | 2009-10-14 | 韩玉贵 | Visual contrast electromagnetic damping demonstration device |
| CN102031751A (en) * | 2010-12-23 | 2011-04-27 | 湖南大学 | Big-tonnage cantilever type horizontal tuned mass damper for regulating eddy-current damping |
| CN102418769A (en) * | 2011-09-22 | 2012-04-18 | 北京航空航天大学 | Stiffness/damping adjustable double-cantilever beam sealed passive damper |
| KR101209131B1 (en) * | 2012-09-07 | 2012-12-07 | (주)대우건설 | Magnetic damper system for controlling vibration of distortion direction |
| CN202939881U (en) * | 2012-11-16 | 2013-05-15 | 安徽原创科普技术有限公司 | Magnetic damping effect contrast demonstration device |
| CN203085038U (en) * | 2013-01-07 | 2013-07-24 | 吉林大学 | Single-chip microcomputer contrast-type Lenz's law physics demonstration device |
| CN104819233A (en) * | 2015-04-03 | 2015-08-05 | 北京航空航天大学 | Two-freedom-degree electric eddy current tuning passive damper |
| CN104952331A (en) * | 2015-05-25 | 2015-09-30 | 南京新辉科教仪器有限公司 | Magnetic damping pendulum |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179515A (en) * | 2017-06-22 | 2017-09-19 | 同济大学 | A kind of eddy current damper health monitoring systems |
| CN107664566A (en) * | 2017-09-21 | 2018-02-06 | 湖北省地震局 | Portable vibration platform calibrating installation |
| CN107664566B (en) * | 2017-09-21 | 2023-11-24 | 湖北省地震局 | Portable vibrating table calibrating device |
| CN107941443A (en) * | 2017-12-25 | 2018-04-20 | 上海大学 | A kind of single-degree-of-freedom is vortexed magnetic damping Proof-Of Principle experimental provision |
| CN107941443B (en) * | 2017-12-25 | 2019-06-07 | 上海大学 | A kind of single-degree-of-freedom vortex magnetic damping Proof-Of Principle experimental provision |
| CN108318204A (en) * | 2018-03-21 | 2018-07-24 | 天津大学 | A kind of electromagnetic impact vibration testing device |
| CN108318204B (en) * | 2018-03-21 | 2023-09-12 | 天津大学 | Electromagnetic impact vibration experimental device |
| CN111458288A (en) * | 2020-05-14 | 2020-07-28 | 中国船舶科学研究中心 | Material damping characteristic testing device |
| CN114061876A (en) * | 2021-10-29 | 2022-02-18 | 哈尔滨工业大学（深圳） | Damping characteristic measuring device |
| CN114812423A (en) * | 2022-04-25 | 2022-07-29 | 山东光安智能科技有限公司 | Mechanical digital disc type roof separation layer sensor |
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