CN106706291A - Rotor tester used for rotating tracking continuous scanning laser Doppler vibrometry - Google Patents
Rotor tester used for rotating tracking continuous scanning laser Doppler vibrometry Download PDFInfo
- Publication number
- CN106706291A CN106706291A CN201611206442.7A CN201611206442A CN106706291A CN 106706291 A CN106706291 A CN 106706291A CN 201611206442 A CN201611206442 A CN 201611206442A CN 106706291 A CN106706291 A CN 106706291A
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- China
- Prior art keywords
- excitation
- main shaft
- servo
- rotating
- leaf dish
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005284 excitation Effects 0.000 claims abstract description 54
- 238000012360 testing method Methods 0.000 claims abstract description 34
- 229910001018 Cast iron Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000004417 polycarbonate Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229910001008 7075 aluminium alloy Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a rotor tester used for rotating tracking continuous scanning laser Doppler vibrometry. The rotor tester comprises a driving motor, a main shaft and a rotating bladed disc. The main shaft is connected with the motor shaft of the driving motor. The rotating bladed disc is installed at the tail end of the main shaft. A servo excitation disc and a rotating speed measurement device are installed on the main shaft. The servo excitation disc is installed at the internal side of the rotating bladed disc. Multiple AC electromagnetic excitations used for providing excitation for the rotating bladed disc are symmetrically installed on the servo excitation disc. The rotating speed measurement device is installed at the internal side of the servo excitation disc. The servo excitation system is designed to realize noncontact excitation of the rotating bladed disc, and the output signals of a hollow sleeve type photoelectric sensor installed on the rotor main shaft are converted into rotating speed signals to be inputted to a TCSLDV test system so as to realize high-precision rotating speed real-time monitoring. The system has high degree of integration and the bladed disc can be replaced so as to provide experimental basis for tracking continuous scanning laser Doppler vibrometry of high-speed rotating machinery.
Description
Technical field
The invention belongs to test and technical field of measurement and test, the vibration characteristics test experiments for rotating leaf dish.
Background technology
Measurement to rotation status lower blade disc vibration characteristic, is a job for very challenging property.Conventional contact
Measure and dynamic strain piece is fitted in the maximum position of pilot blade strain, by accurate slip ring electrical feedthrough by the telecommunications of foil gauge
Number it is delivered to data collecting instrument, or strain signal is delivered to by collection by the wireless signal transmitter of centre-lock
On instrument, so as to obtain dynamic stress during blade vibration.Foil gauge measurement is subject to high temperature, high-revolving influence under rotation status,
To foil gauge and the slip ring electrical feedthrough for installing the fixed, ability of anti-top load and collection transmission signal of corresponding transfer wire
Requirement very high is proposed, foil gauge installing space is limited, the data channel of test is limited by electrical feedthrough structure, collection
Data volume is not enough to react the vibration shape of whole blade.Track continuous scanning laser resonant method technology (Tracking
Continuous Scanning Laser Doppler Vibrometry, TCSLDV) as a kind of emerging contactless survey
Examination technology is more and more applied to the vibration-testing field of rotating machinery.Therefore a kind of rotor examination for TCSLDV is designed
Device is tested to be very important.
The content of the invention
The technical problems to be solved by the invention are directed to the defect of involved traditional test in background technology, design one
Plant the Rotor test device for laser-Doppler vibration-testing.The exerciser carries out exciting using alternating electromagnetic excitation to leaf dish,
Real-time rotary speed information is monitored by the photoelectric sensor being mounted on an axle.In addition to conveniently meeting testing requirement and equipment
Long-term safety is used, and the design of exerciser can realize a kind of replaceable different leaf dishes of exerciser, and have a housing as bag
Hold casing.
Technical scheme：
A kind of Rotor test device for rotating the continuous scanning laser resonant method of tracking, including motor, main shaft
And rotation leaf dish；The main shaft is connected with the motor shaft of the motor；The rotation leaf dish is arranged on main shaft end
End；Servo-actuated excitation disk and rotation-speed measuring device are installed on the main shaft；The servo-actuated excitation disk is arranged on the pivoting leaf
Disk inner side, is symmetrically installed with some for for the alternating electromagnetic that the rotation leaf dish provides excitation swashs on the servo-actuated excitation disk
Encourage；The rotation-speed measuring device is arranged on the servo-actuated excitation disk inner side.
The rotation leaf dish is formed using Q345 cold-reduced sheet plate cuttings, and is engaged with leaf dish center cone by tapered sleeve solid
Dingan County is mounted in main the tip of the axis.
The rotation leaf dish is the bladed-disk assemblies or the wheel disc with twist blade of different leaves number.
The alternating electromagnetic excitation uses soft iron core, from the A grades of enamel-covered wire of heat proof material insulation.
The alternating electromagnetic excitation is connected with the servo-actuated excitation disk by screw thread pair；Adjusted by adjusting the screw thread pair
Working clearance between the blade of the alternating electromagnetic excitation and the rotation leaf dish.
The housing of protective effect is provided with outside the rotation leaf dish and the servo-actuated excitation disk；The shroud upper panel of the housing
From polycarbonate plastic plate.
The main shaft is supported by bearing bag；The bearing bag is arranged on the upper of the cast iron platform by bearing bag bearing
Side.
The rotation-speed measuring device is the hollow jacket-type photoelectric sensor of high accuracy, is enclosed within the main shaft, and lead to
Insulated leg is crossed to fix.
The main shaft is connected by flexible clutch with the motor shaft of the motor.
The motor is fixed on cast iron platform top by the motor insulated leg at its two ends.
Beneficial effect：The test that Rotor test device for TCSLDV experimental tests of the invention rotates at a high speed for rotor
Environment, devises servo-actuated excitation system realization to rotating the non-contact exciting of leaf dish.The shroud upper panel of housing is higher from light transmittance
Material process, the security of the Rotor test device can be improved, while can guarantee that laser beam well through preceding again
Cover plate is projected in leaf dish to be tested.The output signal of the hollow jacket-type photoelectric sensor by that will be arranged on rotor main shaft
Be converted to tach signal input TCSLDV test systems, it is possible to achieve high-precision rotating speed real-time monitoring.Rotor main shaft rear end with
Motor is directly connected to by flexible clutch, and power-transmission system effect is high, rotor is possessed the potentiality of rotation at a high speed.Should
Exerciser level of integrated system is high and replaceable leaf dish, is the continuous scanning laser Doppler vibration-testing of tracking of high-speed rotating machine
There is provided experimental basis.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the Rotor test device of TCSLDV experimental tests of the invention.
Wherein, 1-housing, 2-rotation leaf dish, 3-flange, 4-servo-actuated excitation disk, 5-carbon brush, 6-bearing bag branch
Seat, 7-bearing bag, 8-photoelectric sensor, 9-insulated leg, 10-main shaft, 11-flexible clutch, 12-motor insulation branch
Seat, 13-motor, 14-motor insulated leg, 15-housing support base, 16-tapered sleeve, 17-leaf dish center cone, 18-
Alternating electromagnetic is encouraged, 19-slip ring, 20-rear sealing plate, 21-middle installation side, 22-cast iron platform, 23-shroud upper panel.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is a kind of structural representation of the Rotor test device of TCSLDV experimental tests of the invention.As shown in figure 1, this hair
The Rotor test device of bright TCSLDV experimental tests by rotor, rotor supports, Power Component, photoelectric sensor, excitation system and
Housing is constituted.Rotor includes main shaft 10 and rotation leaf dish 2；Rotor takes cantilever support, and cast iron platform is supported on by rotor supports
22 tops.Rotor supports include bearing bag 7 and bearing bag bearing 8.Power Component includes motor 13, water cooling box and change
Frequency device, water cooling box is that external equipment is used for motor water cooling in experimentation, and frequency converter is used for the rotating speed of controlled motor, is electricity
The external equipment of machine.Excitation system includes alternating electromagnetic excitation 18 and servo-actuated excitation disk 4.
Rotation leaf dish 2 is formed using Q345 cold-reduced sheet plate cuttings, positioned at the front end of rotor-support-foundation system, 3 and leaf is covered by vertebra
Disk center's cone 2 is engaged the end for being fixedly mounted on main shaft 10, and leaf dish 2 is rotated by main shaft 10 rotates；In the present invention, revolve
Rotating disc 2 can need to change according to experiment, and dismounting is simple.The present invention to the bladed-disk assemblies of different leaves number or can be carried
The wheel disc of twist blade is tested.Main shaft 10 is formed using the quenched post-processings of 40Cr, and cast iron platform is arranged on by bearing bag 7
21 tops.
Servo-actuated excitation disk 4 is processed using 7075 aluminium sheets, it is ensured that the intensity requirement of servo-actuated excitation disk 4；Servo-actuated excitation disk 4
It is spaced apart on main shaft 10 with rotation leaf dish 2, it is servo-actuated as main shaft 10 is rotated.Alternating electromagnetic excitation 18 and rotation
The distance of rotating disc 2 needs regulation according to experiment, and some alternating electromagnetic excitations 4, alternating current are symmetrically installed with servo-actuated excitation disk 4
Magnetic pumping 4 uses soft iron core, from the A grades of enamel-covered wire of heat proof material insulation, and is connected with servo-actuated excitation disk 4 by screw thread pair；
The purpose that alternating electromagnetic excitation 18 is symmetrically installed is to reduce the influence of amount of unbalance.Alternating electromagnetic excitation 18 is installed by screw thread pair
On servo-actuated excitation disk 4, alternating electromagnetic can be conveniently adjusted by screw thread pair and encourage 18 to be encouraged on the thickness direction of disk 4 servo-actuated
Fitting depth, so as to realize alternating electromagnetic excitation 18 and rotation leaf dish 2 blade between the working clearance regulation.Alternating electromagnetic
18 pairs of rotation leaf dishes 2 of excitation provide the excitation of a certain frequency, and the size and excited frequency of exciting force can be by software and power
Amplifier is controlled according to experiment needs；Copper slip ring 19 is additionally provided with servo-actuated excitation disk 4, copper slip ring 19 is fixed with brass screw
On servo-actuated excitation disk, carbon brush 5, position and the copper slip ring 19 of carbon brush 5 are installed on the inwall of housing 1 near rotation leaf dish 2
Corresponding, brass screw is connected with the wire of AC excitation tape insulation enamel-covered wire：Remove enamel-covered wire and be wrapped in copper spiral shell in copper cash one end
Nail on, it is another to terminate in AC excitation, in addition, there is insulating materials between screw and follower disk, pumping signal will not pass to
On Moving plate.Pumping signal by the carbon brush 5 on housing 1 after the amplification of power amplifier by being transmitted to copper slip ring 19
On, pumping signal is delivered to alternating electromagnetic excitation 18 by fastening brass screw used.
Situation about being hurted sb.'s feelings in order to ensure that will not occur leaf destruction to fly out in rotor high-speed rotation, the present invention is devised
The protective housing 1 of sufficient intensity, rotation leaf dish 2 and servo-actuated excitation disk 4 are arranged in housing 1, and the constrained of housing 1 is shell
Body support base 15, the constrained of rear sealing plate 20 is flange 3 and middle installation side 21, and housing 1 and rear sealing plate 20 are used
Q235 materials are processed., from light transmittance PC plate (polycarbonate plastic plate) higher, laser beam can be very for the shroud upper panel 23 of housing 1
Got in rotation leaf dish 2 through PC plate well, and receive the reflected signal for carrying the rotation vibration information of leaf dish 2.
Bearing bag 7 includes that bearing, axle be cold and bearing holder (housing, cover)；Selection of Bearings model 6009, basic dynamic radial load rating
It is 21KN；Bearing holder (housing, cover) entirety boring, is installed together after bearing and axle cold charge with bearing holder (housing, cover)；And installed by bearing bag bearing 8
In the top of cast iron platform 22, main shaft 10 is passed through the bearing bag 7, is supported by bearing bag 7 and bearing bag bearing 8.
Photoelectric sensor 8 is the hollow jacket-type photoelectric sensor of high accuracy, is enclosed within main shaft 10, and by compressing method
Orchid ensures the accuracy of measurement rotating speed；The other end of main shaft 10 is directly connected by flexible clutch 11 with the motor shaft of motor 13
Connect；Motor 13 is fixed on the top of cast iron platform 22 by the motor insulated leg 13,15 at its two ends.Rotor-support-foundation system is with bearing
The form of bag 7 is connected by bolt with bearing bag bearing 6, and bearing bag bearing 6 is connected with the cast iron platform 22 of experimental bench.
Motor 13 is rotated leaf dish 2 and is servo-actuated the synchronous high of excitation disk 4 by flexible clutch 11 in the present invention
Speed rotation.
Jacket-type photoelectric sensor 8 is arranged on the rotor main shaft 10 after housing 1 and stabilization is carried out to it by insulated leg 9
Reinforce.Jacket-type photoelectric sensor 8 is by the control cabinet of speed feedback to TCSLDV systems.For on rotor main shaft 10 in the present invention
Hollow jacket-type photoelectric sensor 8 devises the hold-down support of insulation, it is ensured that know clearly photoelectric sensor during rotor operation
Stability, insulated leg 9 it also avoid the electromagnetic interference of outer bound pair photoelectric sensor.In addition, the support base 12 of motor
Insulating materials is also with 14 to process, also for reducing motor to the electromagnetic interference of photoelectric sensor.
Motor 13 in the present invention selects Siemens's asynchronous alternating current servo motor moment of torsion for needed for rotor-support-foundation system is provided.
Because the rotating speed upper limit of the drive mechanisms such as gear pair or synchronous toothed belt is relatively low, rotor-support-foundation system passes through with motor 13 in the present invention
Flexible clutch 11 is connected directly between the rear end of rotor main shaft 10, rather than use drive mechanism rotor driven, therefore can be significantly
Improve its potentiality for rotating at a high speed.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of Rotor test device that continuous scanning laser resonant method is tracked for rotating, including motor (13), master
Axle (10) and rotation leaf dish (2)；The main shaft (10) is connected with the motor shaft of the motor (13)；The rotation leaf dish
(2) installed in the main shaft (10) end；It is characterized in that：Servo-actuated excitation disk (4) is installed on the main shaft (10) and is turned
Speed measuring device；Servo-actuated excitation disk (4) is right on servo-actuated excitation disk (4) installed in rotation leaf dish (2) inner side
It is provided with some for being called that rotation leaf dish (2) provides the alternating electromagnetic for encouraging excitation (18)；The rotation-speed measuring device
Installed in servo-actuated excitation disk (4) inner side.
2. Rotor test device according to claim 1, it is characterised in that：It is described rotation leaf dish (2) by tapered sleeve (16) with
Leaf dish center cone (17) is engaged the end for being fixedly mounted on main shaft (10).
3. Rotor test device according to claim 1, it is characterised in that：Rotation leaf dish (2) is different leaves number
Bladed-disk assemblies or the wheel disc with twist blade.
4. Rotor test device according to claim 1, it is characterised in that：Alternating electromagnetic excitation (18) uses soft iron
Core, from the A grades of enamel-covered wire of heat proof material insulation.
5. Rotor test device according to claim 1, it is characterised in that：Alternating electromagnetic excitation (18) is servo-actuated with described
Excitation disk (4) is connected by screw thread pair；Alternating electromagnetic excitation (18) and the rotation are adjusted by adjusting the screw thread pair
Working clearance between the blade of leaf dish (2).
6. Rotor test device according to claim 1, it is characterised in that：Swash in rotation leaf dish (2) and described being servo-actuated
Encourage the housing (1) that protective effect is provided with outside disk (4)；The shroud upper panel (23) of the housing (1) selects polycarbonate plastic plate.
7. Rotor test device according to claim 1, it is characterised in that：The main shaft (10) is supported by bearing bag (7)；
The bearing bag (7) by bearing bag bearing (6) installed in the cast iron platform (22) top.
8. Rotor test device according to claim 1, it is characterised in that：The rotation-speed measuring device is hollow outer for high accuracy
Shell type photoelectric sensor, is enclosed within the main shaft (10), and fixed by insulated leg.
9. Rotor test device according to claim 1, it is characterised in that：The main shaft (10) is by flexible clutch (11)
Motor shaft with the motor (13) is connected.
10. Rotor test device according to claim 1, it is characterised in that：The motor (13) is by its two ends
Motor insulated leg is fixed on cast iron platform (22) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206442.7A CN106706291A (en) | 2016-12-23 | 2016-12-23 | Rotor tester used for rotating tracking continuous scanning laser Doppler vibrometry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206442.7A CN106706291A (en) | 2016-12-23 | 2016-12-23 | Rotor tester used for rotating tracking continuous scanning laser Doppler vibrometry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106706291A true CN106706291A (en) | 2017-05-24 |
Family
ID=58903714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611206442.7A Pending CN106706291A (en) | 2016-12-23 | 2016-12-23 | Rotor tester used for rotating tracking continuous scanning laser Doppler vibrometry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106706291A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918065A (en) * | 2018-06-19 | 2018-11-30 | 东北大学 | A kind of experimental provision and test method of drum barrel-wheel disc bolt fastening structure |
| CN114485730A (en) * | 2022-01-25 | 2022-05-13 | 湖南大学 | DVL error calibration method and system based on Newton iteration method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62150133A (en) * | 1985-12-25 | 1987-07-04 | Hitachi Ltd | Apparatus for testing rotation of blade |
| GB2297384A (en) * | 1993-10-13 | 1996-07-31 | Mtu Muenchen Gmbh | Testing rotor blades |
| CN201408074Y (en) * | 2009-05-03 | 2010-02-17 | 罗清 | Electric torsion vibration exciter |
| CN103323195A (en) * | 2013-07-06 | 2013-09-25 | 北京航空航天大学 | Whirling vibration excitation and dynamic measurement device |
-
2016
- 2016-12-23 CN CN201611206442.7A patent/CN106706291A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62150133A (en) * | 1985-12-25 | 1987-07-04 | Hitachi Ltd | Apparatus for testing rotation of blade |
| GB2297384A (en) * | 1993-10-13 | 1996-07-31 | Mtu Muenchen Gmbh | Testing rotor blades |
| CN201408074Y (en) * | 2009-05-03 | 2010-02-17 | 罗清 | Electric torsion vibration exciter |
| CN103323195A (en) * | 2013-07-06 | 2013-09-25 | 北京航空航天大学 | Whirling vibration excitation and dynamic measurement device |
Non-Patent Citations (3)
| Title |
|---|
| D DI MAIO ET.AL: "Applications of continuous tracking SLDV measurement methods to axially symmetric rotating structures using different excitation methods", 《MECHANICAL SYSTEMS AND SIGNAL PROCESSING》 * |
| S.ZUCCA ET.AL: "Measuring the performance of underplatform dampers for turbine blades by rotating laser Doppler Vibrometer", 《MECHANICAL SYSTEMS AND SIGNAL PROCESSING》 * |
| 周自强: "《机械工程测控技术》", 30 March 2016 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918065A (en) * | 2018-06-19 | 2018-11-30 | 东北大学 | A kind of experimental provision and test method of drum barrel-wheel disc bolt fastening structure |
| CN108918065B (en) * | 2018-06-19 | 2019-08-23 | 东北大学 | A kind of experimental provision and test method of drum barrel-wheel disc bolt fastening structure |
| CN114485730A (en) * | 2022-01-25 | 2022-05-13 | 湖南大学 | DVL error calibration method and system based on Newton iteration method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |