CN107490463A - A kind of online Modal detection positioner - Google Patents
A kind of online Modal detection positioner Download PDFInfo
- Publication number
- CN107490463A CN107490463A CN201710712219.8A CN201710712219A CN107490463A CN 107490463 A CN107490463 A CN 107490463A CN 201710712219 A CN201710712219 A CN 201710712219A CN 107490463 A CN107490463 A CN 107490463A
- Authority
- CN
- China
- Prior art keywords
- measured piece
- exciting
- hammer
- control module
- laser vibration
- 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.)
- Granted
Links
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention discloses a kind of online Modal detection positioner, including hammer stimulating device, automatic fixer, self-operated measuring unit and electronic control module.The hammer stimulating device has the exciting hammer that exciting force is provided for measured piece.Automatic fixer is used for fixing measured piece, applies the boundary condition in detection process for measured piece.Self-operated measuring unit has the laser vibration measurer for being used for detecting measured piece pumping signal.Above-mentioned exciting hammer realizes the position adjustments on transverse and longitudinal direction with laser vibration measurer by linear motion unit.In the process of running, after electronic control module detection measured piece is in place, control automatic fixer clamps measured piece, then controls exciting hammer to move to specified location with laser vibration measurer, and after exciting is hammered into shape and taps measured piece, mould measurement information is obtained by laser vibration measurer.It is low that the present invention solves existing manual Modal detection plant automation degree, it is impossible to realizes that continuous-stable exports exciting force, and double hit problem easily occurs during mode measurement percussion.
Description
Technical field
The invention belongs to mould measurement apparatus field, designs a kind of online Modal detection positioner, especially automates
Degree is high, mould measurement process stabilization, can repeat to provide uniformity height, the strong exciting force of controllability for measured piece.
Background technology
Mode is the natural vibration characteristic of mechanical structure, and generally use modal test measures the dynamic characteristic of mechanical structure,
By the intrinsic frequency of analytical structure, model of vibration and modal damping theoretical foundation is provided for the dynamic analysis of mechanical structure.Mould
State experiment usually uses hammering method, and tapping tested mechanical structure using the power hammer of installation force snesor enters row energization, vibration measurement with laser
Instrument obtains the pumping signal of hammering mechanical structure each point.Make the machinery for being that exciting device discord is tested the advantages of in this way
Structure is connected, and any quality will not be added to mechanical structure, thus does not interfere with the dynamic characteristic of measured piece.
The size of exciting force depends on the size that operator exerts oneself, the speed of reaction, material of power hammer etc..Hammering method at present
It is to be hammered into shape to tap measured piece by manual operation power, because the size and Orientation of hammer force is it is difficult to ensure that consistent, therefore the actuation duration is difficult
With control, repeatability is poor, and double hit easily occurs in power pulse.The ultromotivity hammer device that presently, there are simultaneously, measured piece fix dress
Put and be short of unified consideration with laser measuring device for measuring, systematicness is poor, and automaticity is low, can not much meet aerospace field
Deng the demand for measuring mode high automation.
The content of the invention
The invention aims to low, the test device system that solves existing Modal detection plant automation degree
Difference, hammer force size and quality can not ensure in handwork hammer striking, and repeatability is poor, and operating personnel's technology is relied on and asked greatly etc.
Topic, there is provided a kind of automaticity is high, and test quality is good, online Modal detection positioner simple to operate.
Online Modal detection positioner of the invention, including hammer stimulating device, automatic fixer, self-operated measuring unit
With electronic control module.
The hammer exciting bank has the exciting hammer that exciting force is provided for measured piece；The automatic fixer is used for installing
Measured piece, boundary condition when providing fixed for measured piece；The self-operated measuring unit has accumulation signal at collection measuring point
Laser vibration measurer；The electronic control module is used for controlling the motion of exciting hammer and laser vibration measurer, and the collection of signal.
Above-mentioned exciting hammer is driven by servomotor to be swung, and taps measured piece；And driven by two linear motion units, it is real
Existing horizontal and vertical position adjustments；Laser vibration measurer is driven by two linear motion units simultaneously, is realized horizontal and vertical
Position adjustments.
Whether measured piece is in place on electronic control module detection automatic fixer；It is automatically controlled when measured piece is in place
The power that module controls automatic fixer to set clamps measured piece.When electronic control module judges that the clamping force of measured piece reaches setting
After value, control exciting hammer moves to specified beating position.After electronic control module detects the motion of exciting hammer in place, Laser Measuring is controlled
The laser head of Vibration Meter launches the specified tested point on laser arrival measured piece.When electronic control module detects that laser vibration measurer moves
After in place, control exciting hammer taps measured piece；Laser vibration measurer obtains detection information simultaneously, feeds back to electronic control module, completes quilt
Survey on part and specify the exciting information gathering of measuring point.Then the laser head of control laser vibration measurer reaches next tested point, then secondary control
Exciting hammer processed taps measured piece, repeated acquisition process.
During exciting hammer taps, the angle on target and target velocity of electronic control module setting exciting hammer, control exciting hammer
After speed 0 reaches target velocity with certain acceleration time, control exciting hammers 105 uniform motion into shape；Until the hammer of exciting hammer 105
When head taps termination close-target angle, exciting hammer 105 moves to angle on target, i.e. beating point with certain deceleration time, completes
Tap；Complete after tapping, exciting hammer returns to original state with the identical characteristics of motion, and preparation taps next time.
The advantage of the invention is that：
1st, the online Modal detection positioner of the present invention, can solve hammer force existing for existing hand force hammer test device
Size and Orientation is difficult to ensure that unanimously repeatability is poor, and double hit problem easily occurs in power pulse；
2nd, the online Modal detection positioner of the present invention, automaticity is high, small to the dependence of people；Reduce manual survey
In examination by adjust laser head position find measured piece measuring point used in the time, Modal detection efficiency is greatly improved；
3rd, the online Modal detection positioner of the present invention, by origin switch, limit switch, photoelectricity correlation switch and power pass
Sensor improves the control accuracy and security of whole system；
4th, the online Modal detection positioner of the present invention, percussion angle on target is set by host computer and target velocity is very big
The complexity of control system is simplified, it is easy to use, it is easy to examination and maintenance, there is wide applicability
Brief description of the drawings
Fig. 1 is the online Modal detection positioner overall structure diagram of the present invention；
Fig. 2 is hammer stimulating apparatus structure schematic diagram in the online Modal detection positioner of the present invention；
Fig. 3 is automatic hammering cellular construction schematic diagram in hammer stimulating device；
Fig. 4 is automatic fixer structural representation in the online Modal detection positioner of the present invention；
Fig. 5 is measured piece installation way schematic diagram in the online Modal detection positioner of the present invention
Fig. 6 is the buffer structure schematic diagram of automatic fixer；
Fig. 7 is self-operated measuring unit structural representation in the online Modal detection positioner of the present invention.
In figure：
1- taps exciting bank 2- automatic fixer 3- self-operated measuring units
4- electronic control module 5- measured piece 101- linear motion units A
102- linear motion unit B 103- servomotor 104- swing rods
105- excitings hammer 106- servomotor supporting table 107- exciting force snesors into shape
108- origin switch 109- limit switch 110- blocks
201- clamping unit 202- clamping force snesor 203- electric cylinders
204- clamping pedestal 205- push rod 206- sleeves
207- springs 201a- fixes clamping part 201b- activity clamping parts
201c- measured pieces positioning support 201d- locating slot 201e- half slots
201f- measured piece detection switch 301- laser vibration measurer 302- linear motion units C
303- linear motion units D
Embodiment
The present invention can be described in further detail with reference to accompanying drawing below.
Online Modal detection positioner of the invention, including hammer stimulating device 1, automatic fixer 2, automatic measurement dress
3 and electronic control module 4 are put, as shown in Figure 1.
The hammer stimulating device 1 is installed on No.1 platform, single by two linear motion units and an automatic hammering
Member composition, as shown in Figure 2；It is respectively linear motion unit A101 and linear motion unit B102 to make two linear motion units；
Linear motion unit A101 is set along x-axis, and linear motion unit B102 is set along y-axis, and linear motion unit B102 bottom
It is fixedly installed on linear motion unit A101 mobile platform.The automatic hammering unit includes servomotor 103, swing rod
104 hammer 105 into shape with exciting, as shown in Figure 3；Wherein, the axis of servomotor 103 is set along y-axis, and output shaft down, is set through level
After the perforation opened up in the servomotor supporting table 106 put, servomotor supporting table 106 is fixed in the end of servomotor 103
Upper surface；Above-mentioned servomotor supporting table 106 is fixedly installed on linear motion unit B102 mobile platform.Swing rod 104 hangs down
Directly set in the axis of servomotor 103, end is fixedly sleeved on the output shaft of servomotor 103.The tup of exciting hammer 105 can
It is replaced by the different materials such as steel, aluminium, nylon, rubber；The hammer handle of exciting hammer 105 is flexible material, and end is fixedly mounted on swing rod
104 front ends.The tup of exciting hammer 105 taps and is also equipped with exciting force snesor 107 on end, for measuring the size of percussion power.
Thus, it can realize that exciting hammers 105 position adjustments on x, y-axis direction into shape by two linear motion units；Pass through servomotor
103 driving swing rod 105 horizontal directions are swung, and then drive exciting hammer 105 to swing, and exciting force is provided for measured piece 5.Swing rod 104
End both sides are separately installed with origin switch 108 and limit switch 109；Swing rod end is provided with block 110 simultaneously.Wherein, it is former
Point switch 108 is optoelectronic switch, and when block 110 moves to the groove of optoelectronic switch, swing rod 104 is located at original state；Pass through
Origin switch realizes that exciting hammers the monitoring of 105 original states into shape.Limit switch is used for limiting the percussion angle of exciting hammer 105, protection
Exciting hammer 105.
The automatic fixer 2 is installed on No. two platforms, for providing boundary condition when fixing for measured piece 5,
It is made up of the clamping unit 201, the clamping force snesor 202 that are set gradually along y-axis with electric cylinder 203, as shown in Figure 4.Wherein, fill
Folder unit 201 is wholy set on clamping pedestal 204, including fixed clamping part 201a and movable clamping part 201b；Wherein, it is fixed
Slide rail fixed between clamping part 201a and clamping pedestal 204, and being installed on movable clamping part 201b and clamping pedestal 204 along y-axis
Between be slidably installed, movable clamping part 201b is moved along y-axis.On above-mentioned fixed clamping part 201a two are designed with along x-axis
Locating slot 201d is provided with individual measured piece positioning support 201c, two measured piece positioning support 201c；Along perpendicular on fixed clamping part 201a
Nogata is vertically also provided with half slot 201e to being provided with half slot 201d on movable clamping part 201b.Thus, will
The both sides of measured piece 5 are caught in the locating slot 201d on two measured pieces positioning support 201c, while by the post of the bottom design of measured piece 5
Shape bar is placed between the half slot 201e on fixed clamping part 201a and movable clamping part 201b, and with fixing on clamping part 201a
Half slot 201e coordinate, as shown in Figure 5；Now moved by electric cylinder 203 along y-axis promotion activity clamping part 201b, make work
Dynamic clamping part 201b is close to fixed clamping part 201a until being bonded, now on movable clamping part 201b and fixed clamping part 201a
Half slot 201e docking, the bottom cylindrical rods of measured piece 5 are clamped, realize the fixation of measured piece 5.The axis of electric cylinder 203
Set along y-axis, telescopic end end face is fixed with the one end of clamping force snesor 202, and the other end of clamping force snesor 202 is provided with along y
The push rod 205 that axle is set, the output end of push rod 205 are placed in the sleeve 206 that axis is set along y-axis；The sleeve 206 is fixedly installed in
In movable clamping part 201b side walls；And spring 207 is provided with sleeve 206, spring 207 is located at the output end end face of push rod 205
Between movable clamping part 201b side walls, as shown in Figure 6.Moved from there through the promotion activity clamping part 201b of electric cylinder 203, it is fixed
Measured piece 5；And during the promotion activity clamping part 201b of electric cylinder 203, power is played by the spring 207 in sleeve 206
Cushioning effect, avoid causing power to impact clamping force snesor 202.Measured piece detection is also equipped with above-mentioned clamping unit 201
Switch, is photoelectricity correlation switch, and its transmitting terminal, respectively positioned at fixed clamping part 201a both sides, judges clamping unit with receiving terminal
Whether measured piece 5 is placed on 201.By rationally setting No. two positions of platform, exciting hammer 105 is set to be tapped by position adjustments
Each position on to measured piece 5.
Described self-operated measuring unit 3 is installed on No. 3 platforms, is made up of two sets of measuring units；Two sets of measuring units are equal
It is made up of two linear motion units and a laser vibration measurer 301, as shown in Figure 7；Two linear motion units are made to be respectively
Straight line units C302 and straight line units D303, linear motion unit C302 are set along x-axis, and linear motion unit D303 is set along y-axis
Put, and linear motion unit D303 bottom is fixedly installed on linear motion unit C302 mobile platform.Laser vibration measurer
301 are installed in horizontal vialog supporting table 304, and the vialog supporting table 304 is fixedly installed in linear motion unit D303
Mobile platform on.Realize that position of the laser vibration measurer 301 on x, y-axis direction is adjusted from there through two linear motion units
Section, and by rationally setting No. three positions of platform, the laser for sending the laser head of laser vibration measurer 301, with laser vibration measurer
The regulation of 301 positions, each position on measured piece 5 can be mapped to, obtain the exciting information of each measuring point on test block；And carry out
During measurement, carry out the exciting infomation detection of different measuring points successively by laser vibration measurer 301 in two sets of measuring units, greatly improve
Detection efficiency.
Whether the electronic control module 4 is put by the photoelectricity correlation switch condition adjudgement measured piece 5 detected on clamping unit 201
Put in place；When measured piece 5 is in place, photoelectricity correlation switch is blocked；The upper computer detection of electronic control module 4 is to penetrating switch
The signal being blocked, control electric cylinder 203 move, promotion activity clamping part 201b movements, fixed measured piece 5.Electronic control module 4 is logical
The data for crossing detection clamping force snesor 202 judge the stationary state of measured piece 5；The host computer of electronic control module 4 detects dress in real time
Data of grip force sensor 202, and being contrasted with the clamping force of inner setting, until the clamping force snesor 202 of detection
When data reach the clamping force of setting, the stop motion of electric cylinder 203 is controlled by the PLC of electronic control module 4, now measured piece 5 is fixed；
And now the PLC of electronic control module 4 particular register state is set.When the upper computer detection of electronic control module 4 is to the specific of PLC
When buffer status is set, control linear motion unit A101 and linear motion unit B102 is moved, and reaches exciting hammer 105
Specify beating position；After upper computer detection is moved in place to exciting hammer 105, control linear motion unit C302 and linear motion
Cells D 303 is moved, make laser vibration measurer 301 laser head launch laser reach measured piece 5 on specified tested point.When upper
Position machine examination is measured after laser vibration measurer 301 moves in place, and control servomotor 103 drives swing rod 104 to swing, and exciting is hammered 105 into shape
Measured piece 5 is tapped, the telegram in reply control of percussion power data feedback is measured by the exciting force snesor 107 on the percussion end of exciting hammer 105
The host computer of module 4, while laser vibration measurer 301 obtains detection information, feeds back to the host computer of electronic control module 4, completes tested
The exciting information gathering of measuring point is specified on part 5.Then the laser head of control laser vibration measurer 301 reaches next tested point, again
Exciting hammer 105 is controlled to tap measured piece 5, repeated acquisition process.Because self-operated measuring unit 3 has two sets of measurements single in the present invention
Member, it is respectively No.1 laser vibration measurer and No. two laser vibration measurers to make the laser vibration measurer 301 in two sets of measuring units, then is entering
When type detects, No.1 laser vibration measurer reaches first measuring position first, and No. two laser vibration measurers reach the second point position；With
Afterwards, exciting information monitoring at the first measuring point and the second measuring point is proceeded by；Subsequent exciting hammer 105 encourages measured piece 5 again, simultaneously
No.1 laser vibration measurer reaches the 3rd point position, and No. two laser vibration measurers reach the 4th point position, proceed by the 3rd survey
Point and exciting information monitoring at the 4th measuring point；So repeatedly, replaced by No.1 laser vibration measurer with No. two laser vibration measurers time
All measuring points are gone through, greatly improve detection efficiency.
In the control process of above-mentioned exciting hammer 105, the host computer of electronic control module 4 is given when tapping measured piece 5 angle and
Target velocity, by controlling percussion angle to avoid double hit problem occur during tapping, pass through control targe speed control tup
Acceleration during percussion；Specially：When electric on servomotor, swing rod is located at original state, passes through the host computer of electronic control module 4
Angle on target (exciting hammer swing angle) and target velocity when the exciting hammer 105 of setting taps, control exciting hammer 105 into shape from speed
After 0 reaches target velocity with certain acceleration time, control exciting hammers 105 uniform motion into shape；Until the tup of exciting hammer 105 taps
When terminating close-target angle, exciting hammer 105 moves to angle on target, i.e. beating point with certain deceleration time, completes to tap；Strike
The speed of moment exciting hammer is hit close to 0, prevents double hit phenomenon occur when tapping.Complete after tapping, exciting hammer 105 is transported with identical
Dynamic rule returns to original state, and preparation taps next time.Because the acceleration time is certain with deceleration time, therefore pass through sets target
Acceleration when speed is settable tap.
Claims (9)
- A kind of 1. online Modal detection positioner, it is characterised in that：Including hammer stimulating device, automatic fixer, automatic Measurement apparatus and electronic control module；The hammer exciting bank has the exciting hammer that exciting force is provided for measured piece；The automatic fixer is used for installing measured piece, boundary condition when providing fixed for measured piece；The self-operated measuring unit has the laser vibration measurer of accumulation signal at collection measuring point；The electronic control module is used for controlling the motion of exciting hammer and laser vibration measurer, and the collection of signal.
- A kind of 2. online Modal detection positioner as claimed in claim 1, it is characterised in that：Exciting hammer is driven by servomotor Swing, tap measured piece；And driven by two linear motion units, realize horizontal and vertical position adjustments.
- A kind of 3. online Modal detection positioner as claimed in claim 1, it is characterised in that：The initial position of exciting hammer passes through Origin switch determines；Exciting hammer is limited by limit switch simultaneously and taps angle.
- A kind of 4. online Modal detection positioner as claimed in claim 1, it is characterised in that：Laser vibration measurer is straight by two Line moving cell drives, and realizes horizontal and vertical position adjustments.
- A kind of 5. online Modal detection positioner as claimed in claim 1, it is characterised in that：Self-operated measuring unit has 1 Laser vibration measurer above.
- A kind of 6. online Modal detection positioner as claimed in claim 1, it is characterised in that：Automatic fixer, which has, to be fixed Clamping part and movable clamping part；Measured piece is positioned by the locating slot on fixed clamping part both sides clamping pedestal；Promoted by electric cylinder Movable clamping part, by measured piece bottom clamping, realizes the fixation of measured piece close to fixed clamping part；Electric cylinder passes through force snesor Measured piece is fixed with the power of setting.
- A kind of 7. online Modal detection positioner as claimed in claim 1, it is characterised in that：It is provided with automatic fixer Photoelectricity correlation switch, for judging whether measured piece is installed in place.
- A kind of 8. online Modal detection positioner as claimed in claim 1, it is characterised in that：Electronic control module detection is automatic fixed Whether measured piece is in place on device；When measured piece is in place, electric control module controls automatic fixer is to set Power clamps measured piece；After electronic control module judges that the clamping force of measured piece reaches setting value, control exciting hammer, which moves to specify, to be struck Hit position；After electronic control module detects the motion of exciting hammer in place, the laser head of laser vibration measurer is controlled to launch laser arrival Specified tested point on measured piece；After electronic control module detects laser vibration measurer motion in place, control exciting hammer taps tested Part；Laser vibration measurer obtains detection information simultaneously, feeds back to electronic control module, completes to specify the exciting information of measuring point to adopt on measured piece Collection；Then the laser head of control laser vibration measurer reaches next tested point, controls exciting hammer to tap measured piece, repeated acquisition again Process.
- A kind of 9. online Modal detection positioner as claimed in claim 1, it is characterised in that：The exciting hammer of electronic control module setting Angle on target and target velocity, control exciting hammer after speed 0 reaches target velocity with certain acceleration time, control exciting Hammer uniform motion into shape；Until when the tup of exciting hammer taps termination close-target angle, exciting hammer is moved to certain deceleration time Angle on target, i.e. beating point, complete to tap；Complete after tapping, exciting hammer returns to original state with the identical characteristics of motion, prepares Tap next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712219.8A CN107490463B (en) | 2017-08-18 | 2017-08-18 | A kind of online Modal detection positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712219.8A CN107490463B (en) | 2017-08-18 | 2017-08-18 | A kind of online Modal detection positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107490463A true CN107490463A (en) | 2017-12-19 |
| CN107490463B CN107490463B (en) | 2019-11-22 |
Family
ID=60646649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710712219.8A Active CN107490463B (en) | 2017-08-18 | 2017-08-18 | A kind of online Modal detection positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107490463B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444844A (en) * | 2018-03-26 | 2018-08-24 | 王立 | A kind of communication equipment test device |
| CN108871550A (en) * | 2018-06-01 | 2018-11-23 | 浙江欧迪恩传动科技股份有限公司 | Intrinsic frequency acquisition device for automobile axle shaft |
| CN110207874A (en) * | 2019-07-08 | 2019-09-06 | 长春理工大学 | A kind of experimental rig for probing into non-destructive testing residual stress |
| CN110865158A (en) * | 2019-12-10 | 2020-03-06 | 浙江大学 | Nondestructive testing device and method for internal quality of fruit |
| CN111089695A (en) * | 2019-12-27 | 2020-05-01 | 上海文倍测控科技有限公司 | Automatic modal testing method |
| CN113138069A (en) * | 2021-04-06 | 2021-07-20 | 北京工业大学 | Mechanical indication electric meter main shaft fastening detection device |
| US20220134483A1 (en) * | 2020-11-02 | 2022-05-05 | Hyundai Motor Company | Hammer Device, Apparatus for Detecting Fault of Welded Part, and Method Using the Same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185754A (en) * | 1996-12-24 | 1998-07-14 | Mitsubishi Heavy Ind Ltd | Impulse hammer apparatus |
| US20030172714A1 (en) * | 2002-03-12 | 2003-09-18 | Tokai Rubber Industries, Ltd. | Apparatus and method for evaluating damping performance of vibration-damping devices |
| CN1552552A (en) * | 2003-05-29 | 2004-12-08 | 中国科学院光电技术研究所 | Computer-controlled large-scale aspheric surface belt repairing manipulator |
| JP2009204517A (en) * | 2008-02-28 | 2009-09-10 | Tokyo Institute Of Technology | Oscillation analytic method and oscillation analytic equipment |
| CN204903118U (en) * | 2015-06-30 | 2015-12-23 | 宁波大学 | System for non -contact measures flexible construction's mode mode of vibration |
| CN105929866A (en) * | 2016-06-21 | 2016-09-07 | 华南理工大学 | Hinge plate vibration control device based on multiple laser displacement sensor and method |
| CN106017832A (en) * | 2016-05-11 | 2016-10-12 | 东华大学 | Mode testing apparatus for plate-shaped part |
| CN106153281A (en) * | 2016-06-22 | 2016-11-23 | 东北大学 | A kind of testing stand that vibration isolator generation can be vibrated and impacted |
| CN106940275A (en) * | 2017-03-22 | 2017-07-11 | 南京航空航天大学 | A kind of falling weight impact test plate grip platform and impact velocity measuring method |
| CN106940449A (en) * | 2017-04-10 | 2017-07-11 | 中国地质大学（武汉） | A kind of shallow-layer shear wave earthquake focus exploration device based on linear electric motors |
-
2017
- 2017-08-18 CN CN201710712219.8A patent/CN107490463B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185754A (en) * | 1996-12-24 | 1998-07-14 | Mitsubishi Heavy Ind Ltd | Impulse hammer apparatus |
| US20030172714A1 (en) * | 2002-03-12 | 2003-09-18 | Tokai Rubber Industries, Ltd. | Apparatus and method for evaluating damping performance of vibration-damping devices |
| CN1552552A (en) * | 2003-05-29 | 2004-12-08 | 中国科学院光电技术研究所 | Computer-controlled large-scale aspheric surface belt repairing manipulator |
| JP2009204517A (en) * | 2008-02-28 | 2009-09-10 | Tokyo Institute Of Technology | Oscillation analytic method and oscillation analytic equipment |
| CN204903118U (en) * | 2015-06-30 | 2015-12-23 | 宁波大学 | System for non -contact measures flexible construction's mode mode of vibration |
| CN106017832A (en) * | 2016-05-11 | 2016-10-12 | 东华大学 | Mode testing apparatus for plate-shaped part |
| CN105929866A (en) * | 2016-06-21 | 2016-09-07 | 华南理工大学 | Hinge plate vibration control device based on multiple laser displacement sensor and method |
| CN106153281A (en) * | 2016-06-22 | 2016-11-23 | 东北大学 | A kind of testing stand that vibration isolator generation can be vibrated and impacted |
| CN106940275A (en) * | 2017-03-22 | 2017-07-11 | 南京航空航天大学 | A kind of falling weight impact test plate grip platform and impact velocity measuring method |
| CN106940449A (en) * | 2017-04-10 | 2017-07-11 | 中国地质大学（武汉） | A kind of shallow-layer shear wave earthquake focus exploration device based on linear electric motors |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444844A (en) * | 2018-03-26 | 2018-08-24 | 王立 | A kind of communication equipment test device |
| CN108871550A (en) * | 2018-06-01 | 2018-11-23 | 浙江欧迪恩传动科技股份有限公司 | Intrinsic frequency acquisition device for automobile axle shaft |
| CN110207874A (en) * | 2019-07-08 | 2019-09-06 | 长春理工大学 | A kind of experimental rig for probing into non-destructive testing residual stress |
| CN110865158A (en) * | 2019-12-10 | 2020-03-06 | 浙江大学 | Nondestructive testing device and method for internal quality of fruit |
| CN110865158B (en) * | 2019-12-10 | 2023-08-18 | 浙江大学 | Nondestructive testing device and method for internal quality of fruits |
| CN111089695A (en) * | 2019-12-27 | 2020-05-01 | 上海文倍测控科技有限公司 | Automatic modal testing method |
| CN111089695B (en) * | 2019-12-27 | 2022-10-25 | 上海文倍测控科技有限公司 | Automatic modal testing method |
| US20220134483A1 (en) * | 2020-11-02 | 2022-05-05 | Hyundai Motor Company | Hammer Device, Apparatus for Detecting Fault of Welded Part, and Method Using the Same |
| CN113138069A (en) * | 2021-04-06 | 2021-07-20 | 北京工业大学 | Mechanical indication electric meter main shaft fastening detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107490463B (en) | 2019-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107490463B (en) | A kind of online Modal detection positioning device | |
| CN104406872B (en) | Reisilometer detects support and continuous multi-measuring point auto resilient mounting with continuous multi-measuring point | |
| US5696312A (en) | Accelerated impact testing apparatus | |
| CN104931218B (en) | A kind of system of the Mode Shape of non-contact measurement flexible structure | |
| CN108098138A (en) | A kind of closed loop control method and equipment of laser high-speed processing intermittent line | |
| EP3517928B1 (en) | Natural frequency measuring device and method of measuring a natural frequency of a system | |
| CN105866031B (en) | A kind of scan table, scanned imagery device and method for Terahertz non-destructive testing | |
| CN105716816B (en) | Modal test device | |
| CN110530741A (en) | It is a kind of can mass simultaneous test full-automatic drop hammer impact testing machine | |
| CN104515668A (en) | Ejection-type horizontal impact platform driven by air pressure | |
| CN105654000A (en) | Test method for two-dimensional code scanning equipment performance based on different angles | |
| CN204903118U (en) | System for non -contact measures flexible construction's mode mode of vibration | |
| CN206787482U (en) | A kind of auxiliary monitor station suitable for magnetostrictive displacement sensor | |
| CN205228756U (en) | Electric tool's test pressure simulation mechanism | |
| CN113390961A (en) | Hollowing detection marking device and robot | |
| CN110631788A (en) | Rigidity testing device and method | |
| CN112747790B (en) | Flexible rocket projectile guidance cabin physical quantity testing system | |
| CN219909101U (en) | Pile foundation vertical bearing capacity detection device for building construction | |
| CN206430999U (en) | A kind of full-automatic fixed load impact fatigue testing machine | |
| Peukert et al. | Dynamic interaction between precision machine tools and their foundations | |
| CN103537422B (en) | A kind of Mechanical pulse vibration exciter | |
| CN211235328U (en) | Full-automatic drop hammer impact testing machine capable of simultaneously testing in batches | |
| CN210603790U (en) | Rigidity testing device | |
| CN105547452B (en) | Three axis amplitude measuring instrument of carbon badminton racket | |
| KR101729285B1 (en) | System for measuring and analyzing dynamic stiffness of structure |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |