CN105317923A - Method for restraining vibration of small rotating machine rotor system through ultrasonic vibration - Google Patents
Method for restraining vibration of small rotating machine rotor system through ultrasonic vibration Download PDFInfo
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- CN105317923A CN105317923A CN201410323693.8A CN201410323693A CN105317923A CN 105317923 A CN105317923 A CN 105317923A CN 201410323693 A CN201410323693 A CN 201410323693A CN 105317923 A CN105317923 A CN 105317923A
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Abstract
The invention provides a method for restraining vibration of a small rotating machine rotor system through ultrasonic vibration. The method includes the steps that 1, when a vibrating rotor and a stator are not in contact, an ultrasonic vibrator part (1) is fixed to the detected maximum vibration position, and a gap not smaller than the amplitude of the rotor (5) is kept between the surface of the ultrasonic vibrator part (1) and the surface of the rotor (5); 2, when the rotor (5) and the stator are in contact due to vibration, the ultrasonic vibrator part (1) is fixed to the radial end face of the contact face of the rotor (5) and the stator; 3, when large vibration with the amplitude larger than 1/10 of the diameter of the rotor (5) is generated by the rotor system, an ultrasonic vibrator system is started, squeezing film radial force and friction force generated by vibration of the ultrasonic vibrator system push the rotor (5) to be close to the axis position, namely, the balance position, and the amplitude and friction coefficient of the rotor (5) are reduced. The equipment failure rate is low, and the operational stability of the system is good. The method can be applied to restraining vibration of the small rotating machine rotor system.
Description
Technical field
The present invention relates to science, specifically provide a kind of method utilizing ultrasonic vibration to suppress small rotary machinery vibration of rotor system.
Background technique
In prior art, the extensive use in national economy of all kinds of miniature high-speed rotating machineries, along with turning, stator gap is more and more less, its vibration causes equipment failure problem more and more outstanding, because rotating speed is very high, these faults can cause serious harm, not only affect the stable operation of equipment, and some even causes catastrophic consequence.
The method of current suppression vibration mainly adopts dynamic balancing technique, but dynamic balancing technique lost efficacy sometimes, and dynamic balancing must be carried out when shutdown, cannot accomplish online suppression vibration; The method controlling vibration mainly comprises electromagnetic method, damped method, various regulators etc.; but control vibrotechnique also imperfection under many circumstances; as electromagnetic method need not be applied in non-ferrous material, magnetic flow liquid temperature influence is larger; damper usually can lose efficacy, and produces serious unstable problem etc. in the supercritical region of rotor.
Therefore, people expect that the ultrasonic vibration that can utilize obtaining a kind of technique effect excellent suppresses the method for small rotary machinery rotor oscillation.
Summary of the invention
The object of the invention is the vibration in order to suppress small rotary machinery rotor-support-foundation system, to reduce equipment failure, improve system run all right, make up the deficiency suppressing vibrotechnique at present, the present invention proposes a kind of utilize ultrasonic vibration to cause suspension and antifriction effect, produce larger radial force and suitable frictional force and act on the method that radial surface that vibration turns stator realizes suppressing vibration.
The invention provides a kind of method utilizing ultrasonic vibration to suppress small rotary machinery vibration of rotor system, it is characterized in that: first determine the maximum position place that rotor 5 vibrates; Ultrasonic vibrator parts 5 are used to be fixed on described rotor-support-foundation system; Different phase for different situations or vibration uses following method specifically to process respectively:
1. when the rotor 5 vibrated does not contact with stator, ultrasonic vibrator parts 1 are fixed on the vibration maximum position place detected, make ultrasonic vibrator parts 1 surface keep being not less than the gap of rotor 5 amplitude with rotor 5 surface by micro-adjusting mechanism 2; 2., when rotor 5 contacts owing to vibrating with stator, moveable ultrasonic vibrator parts 1 are fixed on rotor 1 with on the radial end face at stator surface of contact place; 3. when rotor-support-foundation system generation amplitude is greater than the larger vibration of rotor 5 diameter 1/10th, open ultrasonic vibrator system, ultrasonic vibrator system vibration produce squeeze film radial force and frictional force drive rotor 5 to its axis and equilibrium position close, thus the amplitude of rotor and friction factor are reduced, reach the object suppressing vibration.
The described method utilizing ultrasonic vibration to suppress small rotary machinery vibration of rotor system, it is characterized in that: when the vibration of rotor-support-foundation system is larger, adopt at least 2 ultrasonic vibrator systems to suppress vibration simultaneously, be about at least 2 ultrasonic vibrator systems along the circumferential direction uniform radial the and circumference circumferentially and by it being arranged on place, rotor maximum vibration position radial cross section fix, the radial force that at least 2 ultrasonic vibrator systems produce or frictional force act on rotor 5 radial surface simultaneously, can suppress larger vibration.
When vibrating rotator 5 does not contact with stator, for the rotor-stator system do not contacted, also replace and use following method to suppress small rotary machinery vibration of rotor system:
Micro-adjusting mechanism is utilized to adjust the gap length on ultrasonic vibrator and rotor 5 surface, as shown in Equation 1, gap h
0less, W is larger for squeeze film bearing capacity, and the effect suppressing rotor 5 to vibrate is better;
The described ultrasonic vibration vibration suppression device be arranged on rotor 5 utilizing ultrasonic vibration to suppress the method for small rotary machinery vibration of rotor system to use is constructed as follows: ultrasonic vibrator parts 1, micro-adjusting mechanism 2, seal casinghousing 3, eccentric mass 4; Wherein: micro-adjusting mechanism 2 and ultrasonic vibrator parts 1 to be arranged on rotor 5 and can be adjustable along its axial position; Micro-adjusting mechanism 2 is arranged between rotor 5 and ultrasonic vibrator parts 1; Eccentric mass 4 to be arranged on rotor 5 and the spin axis of its deviation of gravity center rotor 5, and ultrasonic vibrator parts 1, micro-adjusting mechanism 2, eccentric mass 4 are all arranged in seal casinghousing 3.
In Fig. 8: seal casinghousing 3 is that " by rotor-support-foundation system and ultrasonic vibrator parts 1 system sealing " as shown in Figure 1 is encapsulated in an interior casing; Eccentric mass 4 is as shown in Figure 1 eccentric balance weight structure parts arranged on rotor 5, and its action principle forms reverse vibration source to slacken vibration as auxiliary reverse counterweight; During system vibration, amplitude h1 and h2 of rotor is by sensor measurement.
The present invention is achieved through the following technical solutions:
First set up the model of rotor-support-foundation system, utilize signal processing technology and Model Calculating Method to obtain the dynamics of system, analyze the maximum position place obtaining rotor 5 and vibrate; When vibrating rotator 5 does not contact with stator, moveable ultrasonic vibrator parts 1 are fixed on rotor 5 and vibrate maximum position place, ultrasonic vibrator parts 1 surface is made to keep certain gap with rotor 5 surface by micro-adjusting mechanism 2, gap can not be greater than rotor 5 amplitude, rotor 5 surface that ultrasonic vibrator parts 1 surface can not be made again to encounter be vibrated, finally by rotor-support-foundation system and ultrasonic vibrator parts 1 system sealing, be used for adjusting environmental stress; When rotor 5 contacts owing to vibrating with stator, moveable ultrasonic vibrator parts 1 to be fixed on the radial end face near rotor 5 and stator surface of contact and by system sealing.
When rotor-support-foundation system is started working, produce larger vibration, now open ultrasonic vibrator system; When vibrating rotator does not contact with stator, utilize levitation effect, ultrasonic vibrator parts 1 vibration causes the extruding air film in small―gap suture, the radial force that ultrasonic extruding air film produces acts on rotor 5 radial surface of vibration, drive rotor 5 to its axis and equilibrium position close, thus the amplitude of rotor 5 is reduced, reach the object suppressing vibration; When rotor 5 contacts with stator, utilize antifriction effect, the vibration of ultrasonic vibrator parts 1 causes extruding air film in point of contact surrounding and acts on rotor 5 radial surface of vibration, for slight contact, the radial force that extruding air film produces can make to turn stator surface of contact separately, namely drive rotor 5 to its axis and equilibrium position close, rotor 5 vibrates and reduces, for serious contact, even if radial force cannot make surface of contact separately, antifriction effect also makes the friction factor turned between stator reduce, and makes serious contact change slight contact into, suppresses the vibration of rotor-support-foundation system.
When the vibration of rotor-support-foundation system is larger, multiple ultrasonic vibrator parts 1 can be adopted to suppress vibration simultaneously, fix by the uniform radial and circumference circumferentially and by it being arranged on cross section, place, rotor 5 maximum vibration position of multiple ultrasonic vibrator parts 1, the radial force that multiple like this ultrasonic vibrator parts 1 produce or frictional force act on rotor 5 radial surface simultaneously, can suppress larger vibration; For the rotor-stator system do not contacted, micro-adjusting mechanism 2 can also be utilized to adjust the gap length on ultrasonic vibrator parts 1 and rotor 5 surface, and theoretical according to squeeze film, gap is less, and squeeze film bearing capacity is larger, and the effect suppressing rotor 5 to vibrate is better.
This method can solve the problem suppressing the vibration of rotor-support-foundation system many places larger, namely wanting to suppress the plurality of positions of vibration to install one or more ultrasonic vibrator parts 1, the suspension utilizing ultrasonic vibrator parts 1 to produce and antifriction effect suppress the vibration of rotor 5 many places simultaneously.
Advantage and effect: this method can carry out the suppression of vibration of rotor system under non-stop-machine condition, be a kind of completely online method suppressing vibration, greatly reduce the loss of shutdown; And the many places of rotor 5 can be suppressed to vibrate simultaneously, there is higher utilization efficiency; And due to the controllability of ultrasonic vibration, make the suppression precision of this method very high, suppress vibrating effect remarkable, compensate for the deficiency in current vibration suppression field.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is the structure principle chart that ultrasonic vibration of the present invention suppresses the principle schematic of vibration;
Fig. 2 is the non-contact partial enlarged drawing that ultrasonic vibration of the present invention suppresses the principle schematic of vibration;
Fig. 3 is the gentle touchdown partial enlarged drawing that ultrasonic vibration of the present invention suppresses the principle schematic of vibration;
Fig. 4 be ultrasonic vibration of the present invention suppress vibration principle schematic seriously contact partial enlarged drawing;
Fig. 5 is the non-contact squeeze film schematic diagram that ultrasonic vibration of the present invention suppresses the principle schematic of vibration;
Fig. 6 is the contact squeeze film schematic diagram that ultrasonic vibration of the present invention suppresses the principle schematic of vibration;
Fig. 7 is many ultrasonic vibrators action principle schematic diagram (being 3 ultrasonic vibrator parts 1 in figure);
Fig. 8 is that the present invention suppresses rotor many places vibration principle schematic diagram (being 3 places in figure).
Embodiment
Reference character implication illustrates: ultrasonic vibrator parts 1, micro-adjusting mechanism 3, seal casinghousing 3, eccentric mass 4, rotor 5, supporting member 6; The amplitude h1 of rotor 5 during system vibration, rotor 5 be squeezed the amplitude h2 after the effect of film radial force, micro-adjusting mechanism 2 and the primary clearance h3 on rotor 5 surface, to be produced by ultrasonic vibrator and to act on squeeze film radial force F1 and frictional force F2, the squeeze film 7 of rotor surface.
A kind of method utilizing ultrasonic vibration to suppress small rotary machinery vibration of rotor system, see accompanying drawing 1-8, the present embodiment is to suppress the vibration of small rotary machinery rotor-support-foundation system to reduce equipment failure, improve system run all right, make up at present suppress the deficiency of vibrotechnique and propose a kind of utilize ultrasonic vibration to cause suspension and antifriction effect, produces larger radial force and suitable frictional force and acts on the method that radial surface that vibration turns stator realizes suppressing to vibrate.
A kind of method utilizing ultrasonic vibration to suppress small rotary machinery vibration of rotor system: first determine the maximum position place that rotor 5 vibrates; Ultrasonic vibrator parts 5 are used to be fixed on described rotor-support-foundation system; Different phase for different situations or vibration uses following method specifically to process respectively:
1. when the rotor 5 vibrated does not contact with stator, ultrasonic vibrator parts 1 are fixed on the vibration maximum position place detected, make ultrasonic vibrator parts 1 surface keep being not less than the gap of rotor 5 amplitude with rotor 5 surface by micro-adjusting mechanism 2; 2., when rotor 5 contacts owing to vibrating with stator, moveable ultrasonic vibrator parts 1 are fixed on rotor 1 with on the radial end face at stator surface of contact place; 3. when rotor-support-foundation system generation amplitude is greater than the larger vibration of rotor 5 diameter 1/10th, open ultrasonic vibrator system, ultrasonic vibrator system vibration produce squeeze film radial force and frictional force drive rotor 5 to its axis and equilibrium position close, thus the amplitude of rotor and friction factor are reduced, reach the object suppressing vibration.
The described method utilizing ultrasonic vibration to suppress small rotary machinery vibration of rotor system, when the vibration of rotor-support-foundation system is larger, adopt at least 2 ultrasonic vibrator systems to suppress vibration simultaneously, be about at least 2 ultrasonic vibrator systems along the circumferential direction uniform radial the and circumference circumferentially and by it being arranged on place, rotor maximum vibration position radial cross section fix, the radial force that at least 2 ultrasonic vibrator systems produce or frictional force act on rotor 5 radial surface simultaneously, can suppress larger vibration.
When vibrating rotator 5 does not contact with stator, for the rotor-stator system do not contacted, also replace and use following method to suppress small rotary machinery vibration of rotor system:
Micro-adjusting mechanism is utilized to adjust the gap length on ultrasonic vibrator and rotor 5 surface, as shown in Equation 1, gap h
0less, W is larger for squeeze film bearing capacity, and the effect suppressing rotor 5 to vibrate is better;
The described ultrasonic vibration vibration suppression device be arranged on rotor 5 utilizing ultrasonic vibration to suppress the method for small rotary machinery vibration of rotor system to use is constructed as follows: ultrasonic vibrator parts 1, micro-adjusting mechanism 2, seal casinghousing 3, eccentric mass 4; Wherein: micro-adjusting mechanism 2 and ultrasonic vibrator parts 1 to be arranged on rotor 5 and can be adjustable along its axial position; Micro-adjusting mechanism 2 is arranged between rotor 5 and ultrasonic vibrator parts 1; Eccentric mass 4 to be arranged on rotor 5 and the spin axis of its deviation of gravity center rotor 5, and ultrasonic vibrator parts 1, micro-adjusting mechanism 2, eccentric mass 4 are all arranged in seal casinghousing 3.
In Fig. 8: seal casinghousing 3 is that " by rotor-support-foundation system and ultrasonic vibrator parts 1 system sealing " as shown in Figure 1 is encapsulated in an interior casing; Eccentric mass 4 is as shown in Figure 1 eccentric balance weight structure parts arranged on rotor 5, and its action principle forms reverse vibration source to slacken vibration as auxiliary reverse counterweight; During system vibration, amplitude h1 and h2 of rotor is by sensor measurement.
In FIG, rotor 5 system with eccentric mass 4 is driven by motor, sets up the model of system, utilizes signal processing technology and Model Calculating Method to obtain the dynamics of system, analyzes the maximum position place of known rotor 5 vibration, ultrasonic vibrator parts 1 and micro-adjusting mechanism 2 are arranged on this position, rotor 5 section at ultrasonic vibrator parts 1 place as shown in Figure 1, opening switch, when rotor 5 does not contact with stator, utilize levitation effect, ultrasonic vibrator parts 1 vibrate the radial force F1 causing the extruding air film 7 in small―gap suture to produce and act on vibrating rotator 5 radial surface, the surperficial maximum displacement of rotor 5 being subject to radial forces changes to h2 by h1, so the impact of squeeze film radial force F1 that produces due to ultrasonic vibration of the vibration at place and being suppressed, when rotor 5 contacts with stator, utilize antifriction effect, the vibration of ultrasonic vibrator 1 causes extruding air film 7 in point of contact surrounding and acts on vibrating rotator 5 radial surface, for slight contact, the radial force F1 that extruding air film 7 produces can make to turn stator surface of contact separately, namely drive rotor 5 to its axis and equilibrium position close, rotor 5 vibrates and reduces, for serious contact, even if radial force F1 cannot make surface of contact separately, the frictional force F2 that antifriction effect produces also makes the friction factor turned between stator reduce, serious contact is made to change slight contact into, suppress the vibration of rotor 5.
In fig. 2, if single ultrasonic vibrator parts suppress the effect of vibration not meet the demands, multiple ultrasonic vibrator parts 1 can be used simultaneously, and be distributed in rotor 5 cross-sectional periphery, open makes vibration reduce simultaneously, as shown in Figure 7,3 ultrasonic vibrator parts 1 are evenly distributed on and circumferentially suppress rotor 5 to vibrate.
In fig. 8, if there is plurality of positions to need to suppress vibration in rotor 5, the present embodiment also can head it off, namely needing to suppress each position of vibration all to place ultrasonic vibrator parts 1, open simultaneously and reduce vibration, as shown in Figure 8, rotor placed 3 groups of ultrasonic vibrator systems (being made up of ultrasonic vibrator parts 1 and micro-adjusting mechanism 2), and every group system can place 1 ultrasonic vibrator parts 1 or micro-adjusting mechanism 2 incessantly, can be good at solving and suppress vibration problem.
The present embodiment is achieved through the following technical solutions:
First set up the model of rotor-support-foundation system, utilize signal processing technology and Model Calculating Method to obtain the dynamics of system, analyze the maximum position place obtaining rotor 5 and vibrate; When vibrating rotator 5 does not contact with stator, moveable ultrasonic vibrator parts 1 are fixed on rotor 5 and vibrate maximum position place, ultrasonic vibrator parts 1 surface is made to keep certain gap with rotor 5 surface by micro-adjusting mechanism 2, gap can not be greater than rotor 5 amplitude, rotor 5 surface that ultrasonic vibrator parts 1 surface can not be made again to encounter be vibrated, finally by rotor-support-foundation system and ultrasonic vibrator parts 1 system sealing, be used for adjusting environmental stress; When rotor 5 contacts owing to vibrating with stator, moveable ultrasonic vibrator parts 1 to be fixed on the radial end face near rotor 5 and stator surface of contact and by system sealing.
When rotor-support-foundation system is started working, produce larger vibration, now open ultrasonic vibrator system; When vibrating rotator does not contact with stator, utilize levitation effect, ultrasonic vibrator parts 1 vibration causes the extruding air film in small―gap suture, the radial force that ultrasonic extruding air film produces acts on rotor 5 radial surface of vibration, drive rotor 5 to its axis and equilibrium position close, thus the amplitude of rotor 5 is reduced, reach the object suppressing vibration; When rotor 5 contacts with stator, utilize antifriction effect, the vibration of ultrasonic vibrator parts 1 causes extruding air film in point of contact surrounding and acts on rotor 5 radial surface of vibration, for slight contact, the radial force that extruding air film produces can make to turn stator surface of contact separately, namely drive rotor 5 to its axis and equilibrium position close, rotor 5 vibrates and reduces, for serious contact, even if radial force cannot make surface of contact separately, antifriction effect also makes the friction factor turned between stator reduce, and makes serious contact change slight contact into, suppresses the vibration of rotor-support-foundation system.
When the vibration of rotor-support-foundation system is larger, multiple ultrasonic vibrator parts 1 can be adopted to suppress vibration simultaneously, fix by the uniform radial and circumference circumferentially and by it being arranged on cross section, place, rotor 5 maximum vibration position of multiple ultrasonic vibrator parts 1, the radial force that multiple like this ultrasonic vibrator parts 1 produce or frictional force act on rotor 5 radial surface simultaneously, can suppress larger vibration; For the rotor-stator system do not contacted, micro-adjusting mechanism 2 can also be utilized to adjust the gap length on ultrasonic vibrator parts 1 and rotor 5 surface, and theoretical according to squeeze film, gap is less, and squeeze film bearing capacity is larger, and the effect suppressing rotor 5 to vibrate is better.
This method can solve the problem suppressing the vibration of rotor-support-foundation system many places larger, namely wanting to suppress the plurality of positions of vibration to install one or more ultrasonic vibrator parts 1, the suspension utilizing ultrasonic vibrator parts 1 to produce and antifriction effect suppress the vibration of rotor 5 many places simultaneously.
Advantage and effect: this method can carry out the suppression of vibration of rotor system under non-stop-machine condition, be a kind of completely online method suppressing vibration, greatly reduce the loss of shutdown; And the many places of rotor 5 can be suppressed to vibrate simultaneously, there is higher utilization efficiency; And due to the controllability of ultrasonic vibration, make the suppression precision of this method very high, suppress vibrating effect remarkable, compensate for the deficiency in current vibration suppression field.
Claims (4)
1. utilize ultrasonic vibration to suppress a method for small rotary machinery vibration of rotor system, it is characterized in that: first determine the maximum position place that rotor (5) vibrates; Ultrasonic vibrator parts (5) is used to be fixed on described rotor-support-foundation system; Different phase for different situations or vibration uses following method specifically to process respectively:
1. when the rotor (5) vibrated does not contact with stator, ultrasonic vibrator parts (1) are fixed on the vibration maximum position place detected, make ultrasonic vibrator parts (1) surface keep being not less than the gap of rotor (5) amplitude with rotor (5) surface by micro-adjusting mechanism (2); 2., when rotor (5) contacts owing to vibrating with stator, moveable ultrasonic vibrator parts (1) are fixed on rotor (1) with on the radial end face at stator surface of contact place; 3. when rotor-support-foundation system generation amplitude is greater than the larger vibration of rotor (5) diameter 1/10th, open ultrasonic vibrator system, ultrasonic vibrator system vibration produce squeeze film radial force and frictional force drive rotor (5) to its axis and equilibrium position close, thus the amplitude of rotor and friction factor are reduced, reach the object suppressing vibration.
2. according to the method utilizing ultrasonic vibration to suppress small rotary machinery vibration of rotor system described in claim 1, it is characterized in that: when the vibration of rotor-support-foundation system is larger, adopt at least 2 ultrasonic vibrator systems to suppress vibration simultaneously, be about at least 2 ultrasonic vibrator systems along the circumferential direction uniform radial the and circumference circumferentially and by it being arranged on place, rotor maximum vibration position radial cross section fix, the radial force that at least 2 ultrasonic vibrator systems produce or frictional force act on rotor (5) radial surface simultaneously, can suppress larger vibration.
3. according to the method utilizing ultrasonic vibration to suppress small rotary machinery vibration of rotor system described in claim 1, it is characterized in that: when vibrating rotator (5) does not contact with stator, for the rotor-stator system do not contacted, also replace and use following method to suppress small rotary machinery vibration of rotor system:
Micro-adjusting mechanism is utilized to adjust the gap length on ultrasonic vibrator and rotor (5) surface, shown in (1), gap h
0less, W is larger for squeeze film bearing capacity, and the effect suppressing rotor (5) to vibrate is better;
4. utilize described in one of them ultrasonic vibration to suppress the method for small rotary machinery vibration of rotor system according to claim 1-3, it is characterized in that: the described ultrasonic vibration vibration suppression device be arranged on rotor (5) utilizing ultrasonic vibration to suppress the method for small rotary machinery vibration of rotor system to use is constructed as follows: ultrasonic vibrator parts (1), micro-adjusting mechanism (2), seal casinghousing (3), eccentric mass (4); Wherein: it is upper and can be adjustable along its axial position that micro-adjusting mechanism (2) and ultrasonic vibrator parts (1) are arranged in rotor (5); Micro-adjusting mechanism (2) is arranged between rotor (5) and ultrasonic vibrator parts (1); Eccentric mass (4) is arranged in rotor (5) and goes up and the spin axis of its deviation of gravity center rotor (5), and ultrasonic vibrator parts (1), micro-adjusting mechanism (2), eccentric mass (4) are all arranged in seal casinghousing (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410323693.8A CN105317923B (en) | 2014-07-08 | 2014-07-08 | A kind of method for suppressing small rotary machinery vibration of rotor system using ultrasonic vibration |
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| CN201410323693.8A CN105317923B (en) | 2014-07-08 | 2014-07-08 | A kind of method for suppressing small rotary machinery vibration of rotor system using ultrasonic vibration |
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| CN105317923A true CN105317923A (en) | 2016-02-10 |
| CN105317923B CN105317923B (en) | 2017-12-26 |
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| CN201410323693.8A Expired - Fee Related CN105317923B (en) | 2014-07-08 | 2014-07-08 | A kind of method for suppressing small rotary machinery vibration of rotor system using ultrasonic vibration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805643A (en) * | 2019-11-07 | 2020-02-18 | 西安交通大学 | Self-powered rotating shaft vibration active control system and active control method |
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| CN1176354A (en) * | 1996-09-07 | 1998-03-18 | Itw－阿特克有限公司 | Rotation damper |
| CN102072276A (en) * | 2010-12-30 | 2011-05-25 | 上海交通大学 | Electromagnetic active control device for longitudinal vibration of marine shafting |
| US20110319177A1 (en) * | 2009-02-10 | 2011-12-29 | Siemens Aktiengesellschaft | Damping system and method for eliminating torsion vibrations |
| DE102010041405A1 (en) * | 2010-09-27 | 2012-03-29 | Zf Friedrichshafen Ag | Arrangement for compensating rotational irregularities on a drive shaft |
| CN203193433U (en) * | 2012-11-14 | 2013-09-11 | 吉林大学 | Novel supporting structure used for high-speed motor rotor |
| CN103375529A (en) * | 2012-04-24 | 2013-10-30 | 美卓造纸机械公司 | Arrangement for damping vibration of rollers of calender |
-
2014
- 2014-07-08 CN CN201410323693.8A patent/CN105317923B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176354A (en) * | 1996-09-07 | 1998-03-18 | Itw－阿特克有限公司 | Rotation damper |
| US20110319177A1 (en) * | 2009-02-10 | 2011-12-29 | Siemens Aktiengesellschaft | Damping system and method for eliminating torsion vibrations |
| DE102010041405A1 (en) * | 2010-09-27 | 2012-03-29 | Zf Friedrichshafen Ag | Arrangement for compensating rotational irregularities on a drive shaft |
| CN102072276A (en) * | 2010-12-30 | 2011-05-25 | 上海交通大学 | Electromagnetic active control device for longitudinal vibration of marine shafting |
| CN103375529A (en) * | 2012-04-24 | 2013-10-30 | 美卓造纸机械公司 | Arrangement for damping vibration of rollers of calender |
| CN203193433U (en) * | 2012-11-14 | 2013-09-11 | 吉林大学 | Novel supporting structure used for high-speed motor rotor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110805643A (en) * | 2019-11-07 | 2020-02-18 | 西安交通大学 | Self-powered rotating shaft vibration active control system and active control method |
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Granted publication date: 20171226 Termination date: 20180708 |