CN104032125A - Method for exciting vibration time efficiency of transverse and torsional vibration coupling resonance by alternate torque - Google Patents
Method for exciting vibration time efficiency of transverse and torsional vibration coupling resonance by alternate torque Download PDFInfo
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- CN104032125A CN104032125A CN201310692831.5A CN201310692831A CN104032125A CN 104032125 A CN104032125 A CN 104032125A CN 201310692831 A CN201310692831 A CN 201310692831A CN 104032125 A CN104032125 A CN 104032125A
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- rotating shaft
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- alternate torque
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008878 coupling Effects 0.000 title abstract description 8
- 238000010168 coupling process Methods 0.000 title abstract description 8
- 238000005859 coupling reaction Methods 0.000 title abstract description 8
- 230000010355 oscillation Effects 0.000 claims description 5
- 230000001550 time effect Effects 0.000 claims description 5
- 230000005284 excitation Effects 0.000 abstract 1
- 230000035882 stress Effects 0.000 description 10
- 230000032683 aging Effects 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 4
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to a method for exciting vibration time efficiency of transverse and torsional vibration coupling resonance by alternate torque, which is characterized in that alternate torque output by a torsional vibration motor is taken as an external excitation torque to drive a high rigidity rotating shaft for rotating, alternate torque can excite the transverse vibration with same frequency, simultaneously, another direction transverse vibration which is characterized in that the value is sum or difference of motor rotation frequency and alternate torque frequency is excited, when alternate torque frequency is equal to an certain-step torsion inherent frequency of high rigidity rotating shaft, at moment, transverse and torsional vibration are enhanced, transverse and torsional vibration coupling resonance is generated by the high rigidity rotating shaft, and the generated corresponding dynamic stress can eliminate the residual stress of the high rigidity rotating shaft. The method solves the problem that the time efficiency of transverse and torsional vibration coupling resonance is in the control of motor rotating speed, residual stress of the high rigidity rotating shaft can be eliminated through a mode that alternate torque excites the transverse and torsional vibration coupling resonance, efficiency is increased, and security and reliability for production can be enhanced.
Description
Technical field
The present invention relates to vibration ageing device and method thereof in field of machining, particularly a kind of alternate torque and excite the horizontal coupled resonance oscillation time-effect method of turning round.
Background technology
Rotating shaft all can produce unrelieved stress in the whole process of mechanical workout, and the existence of unrelieved stress can reduce the dimensional stability of rotating shaft, makes rotating shaft produce in the course of the work fatigure failure, and when high speed rotating, rotating shaft fault will produce havoc.Use rotating machine to drive rotating shaft rotation, in the time that frequency corresponding to motor speed of rotation equals transverse vibration rank natural frequency and twisting vibration rank natural frequency, there is the horizontal coupled resonance of turning round in rotating shaft, but some weak point of this method: the one, be not easy to configure rotating shaft and eccentric disc and make rotational frequency corresponding to motor speed of rotation just in time equal transverse vibration rank natural frequency and twisting vibration rank natural frequency; The 2nd, even if configured rotational frequency, when drive is shaped as the high rigidity rotating shaft of tubbiness, natural frequencies and torsion vibration natural frequencies are higher, need very high rotating speed could produce the horizontal coupled resonance of turning round, to the component such as motor, bearing, shaft coupling require high, safety and stability is low, performance difficulty.Produce alternate torque with Torsional Vibration Motor and drive rotating shaft rotation, alternate torque as external drive moment loading in high rigidity rotating shaft, alternate torque will excite the transverse vibration of same frequency, evoke numerical value is the other direction transverse vibration of motor rotation frequency and alternate torque frequency sum or difference simultaneously, in the time that alternate torque frequency equals high rigidity rotating shaft rank torsional natural frequency, excitement of torsional is resonated, now transverse vibration and twisting vibration strengthened, there is the horizontal coupled resonance of turning round in high rigidity rotating shaft, produces corresponding dynamic stress and eliminate the unrelieved stress of high rigidity rotating shaft.
Summary of the invention
The invention provides a kind of alternate torque and excite the horizontal coupled resonance oscillation time-effect method of turning round, solve the horizontal problem of turning round coupled resonance oscillating aging and be limited by motor speed that produces, the alternate torque producing by Torsional Vibration Motor excites the horizontal coupled resonance of turning round to eliminate unrelieved stress, has improved the safety and reliability of producing.The technical scheme that the present invention addresses the above problem is as follows:
1. alternate torque excites the horizontal coupled resonance oscillation time-effect method method of turning round, and concrete steps are:
(1) by experiment, obtain the transverse vibration of high rigidity rotating shaft and each rank natural frequency of twisting vibration,
(2) by calculating, determine eccentricity and the quality of mass,
(3) by calculating, determine quantity, geometric parameter and the position of built-in disk and cantilever disk,
(4) by calculating, determine size and the frequency of Torsional Vibration Motor output alternate torque,
(5) start Torsional Vibration Motor, setting rotation frequency is high rigidity rotating shaft rank torsional natural frequencies, alternate torque will excite the transverse vibration of same frequency, excite numerical value is the other direction transverse vibration of motor rotation frequency and alternate torque frequency sum or difference simultaneously, excitement of torsional resonance simultaneously, there is the horizontal coupled resonance of turning round in high rigidity rotating shaft, produces corresponding dynamic stress and eliminate the unrelieved stress of high rigidity rotating shaft.
Outstanding advantages of the present invention is:
The invention solves horizontal turn round coupled resonance oscillating aging be not easy to configure rotating shaft and eccentric disc produce horizontally turn round coupled resonance, high rigidity rotating shaft needs very high rotating speed could produce the horizontal problem of turning round coupled resonance, improve the safety and stability that high rigidity rotating shaft is carried out to oscillating aging, implement simple, efficiency is high, and the effect of vibration stress relief that the method reaches is better.
Brief description of the drawings
Fig. 1 of the present inventionly excites the horizontal coupled resonance oscillating aging implementation method schematic diagram of turning round by alternate torque.
Fig. 2 is high rigidity rotating shaft of the present invention and built-in disk, cantilever disk combination.
Fig. 3 is transverse vibration time domain, the spectrogram being excited by alternate torque of the present invention.
Fig. 4 is twisting vibration time domain, the spectrogram being excited by alternate torque of the present invention.
Embodiment
Being combined into example with 2 built-in disks, 1 cantilever disk and high rigidity rotating shaft is described further technical scheme of the present invention.
Contrast Fig. 1, of the present inventionly excites the horizontal coupled resonance oscillating aging implementation method of turning round to comprise Torsional Vibration Motor 1, resilient coupling 2, preposition completely liq lubrication sliding bearing 3, high rigidity rotating shaft 4, built-in disk 5, mass 6, rearmounted completely liq lubrication sliding bearing 7, cantilever disk 8, motor support base 9, base plate 10, preposition bearings 11, rearmounted bearings 12 by alternate torque.Torsional Vibration Motor 1 is connected by bolt with motor support base 9, preposition completely liq lubrication sliding bearing 3 is connected by bolt with preposition bearings 11, rearmounted completely liq lubrication sliding bearing 7 has bolt to be connected with rearmounted bearings 12, and motor support base 9, preposition bearings 11 and rearmounted bearings 12 are by being bolted on base plate 10.Start Torsional Vibration Motor 1 and produce alternate torque, by resilient coupling 2, alternate torque is applied to one end of high rigidity rotating shaft 4, the rotation frequency of setting Torsional Vibration Motor 1 is high rigidity rotating shaft 4 certain rank torsional natural frequency, alternate torque will excite the transverse vibration of same frequency, excite numerical value is the other direction transverse vibration of reversing motor 1 rotation frequency and alternate torque frequency sum or difference simultaneously, excitement of torsional resonance simultaneously, there is the horizontal coupled resonance of turning round in high rigidity rotating shaft 4, produces corresponding dynamic stress and eliminate the unrelieved stress of high rigidity rotating shaft 4.
Claims (1)
1. alternate torque excites the horizontal coupled resonance oscillation time-effect method method of turning round, and concrete steps are:
(1) by experiment, obtain the transverse vibration of high rigidity rotating shaft and each rank natural frequency of twisting vibration,
(2) by calculating, determine eccentricity and the quality of mass,
(3) by calculating, determine quantity, geometric parameter and the position of built-in disk and cantilever disk,
(4) by calculating, determine size and the frequency of Torsional Vibration Motor output alternate torque,
(5) start Torsional Vibration Motor, setting rotation frequency is high rigidity rotating shaft rank torsional natural frequencies, alternate torque will excite the transverse vibration of same frequency, excite numerical value is the other direction transverse vibration of motor rotation frequency and alternate torque frequency sum or difference simultaneously, excitement of torsional resonance simultaneously, there is the horizontal coupled resonance of turning round in high rigidity rotating shaft, produces corresponding dynamic stress and eliminate the unrelieved stress of high rigidity rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692831.5A CN104032125B (en) | 2013-12-17 | 2013-12-17 | A kind of alternate torque excites the horizontal coupled resonance oscillation time-effect method of turning round |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692831.5A CN104032125B (en) | 2013-12-17 | 2013-12-17 | A kind of alternate torque excites the horizontal coupled resonance oscillation time-effect method of turning round |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104032125A true CN104032125A (en) | 2014-09-10 |
| CN104032125B CN104032125B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310692831.5A Expired - Fee Related CN104032125B (en) | 2013-12-17 | 2013-12-17 | A kind of alternate torque excites the horizontal coupled resonance oscillation time-effect method of turning round |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768981A (en) * | 2017-01-20 | 2017-05-31 | 广西大学 | A kind of grooved cam impact type alternation torque loading device |
| CN106802237A (en) * | 2017-01-20 | 2017-06-06 | 广西大学 | A kind of Leahy formula alternation torque loading device |
| CN106807614A (en) * | 2017-01-20 | 2017-06-09 | 广西大学 | A kind of torsional excitation device excited by electromagnetic actuators |
| CN106877562A (en) * | 2017-01-20 | 2017-06-20 | 广西大学 | A kind of torsional oscillation loading device excited by eccentric motor |
| CN112322888A (en) * | 2020-09-29 | 2021-02-05 | 沈阳工业大学 | Online reduction method and device for additive composite manufacturing stress based on symmetric high-frequency vibration |
-
2013
- 2013-12-17 CN CN201310692831.5A patent/CN104032125B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 李岩舟等: "新型曲轴振动时效装置的设计", 《机械设计与制造》 * |
| 黎家玲等: "旋转扭振电机及其数值仿真研究", 《电工技术学报》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768981A (en) * | 2017-01-20 | 2017-05-31 | 广西大学 | A kind of grooved cam impact type alternation torque loading device |
| CN106802237A (en) * | 2017-01-20 | 2017-06-06 | 广西大学 | A kind of Leahy formula alternation torque loading device |
| CN106807614A (en) * | 2017-01-20 | 2017-06-09 | 广西大学 | A kind of torsional excitation device excited by electromagnetic actuators |
| CN106877562A (en) * | 2017-01-20 | 2017-06-20 | 广西大学 | A kind of torsional oscillation loading device excited by eccentric motor |
| CN106807614B (en) * | 2017-01-20 | 2022-02-25 | 广西大学 | Torsional vibration exciter excited by electromagnetic actuator |
| CN106768981B (en) * | 2017-01-20 | 2023-05-09 | 广西大学 | Groove cam impact type alternating torque loading device |
| CN106802237B (en) * | 2017-01-20 | 2023-05-09 | 广西大学 | Cam impact type alternating torque loading device |
| CN112322888A (en) * | 2020-09-29 | 2021-02-05 | 沈阳工业大学 | Online reduction method and device for additive composite manufacturing stress based on symmetric high-frequency vibration |
| CN112322888B (en) * | 2020-09-29 | 2022-08-30 | 沈阳工业大学 | Online reduction method and device for additive composite manufacturing stress based on symmetric high-frequency vibration |
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| CN104032125B (en) | 2016-05-18 |
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