CN104896007B - A transmission system torsional vibration reducing method and application thereof - Google Patents
A transmission system torsional vibration reducing method and application thereof Download PDFInfo
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- CN104896007B CN104896007B CN201510155620.7A CN201510155620A CN104896007B CN 104896007 B CN104896007 B CN 104896007B CN 201510155620 A CN201510155620 A CN 201510155620A CN 104896007 B CN104896007 B CN 104896007B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 83
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/1204—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon with a kinematic mechanism or gear system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2232/00—Nature of movement
- F16F2232/02—Rotary
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The invention provides a transmission system torsional vibration reducing method and application thereof. The method is characterized in that a torsional vibration damper, which is a tuned rotary inertia damper, is added on a transmission shaft in a parallel connection manner, and the torsional rotation movement around the transmission shaft is used for reducing the vibration level of a certain first order torsional mode frequency. The method is flexible, can effectively reduce vibration without damage to the original structure of the transmission system, and can be used for later repair of the transmission system. The method can be applied to wind energy/tidal current energy generator sets; the torsional vibration damper is installed on a shaft, connected with a generator, of a high speed shaft coupler to greatly reduce a first-order mode component in the torsional vibration, so that a transmission system can operate more stably, the reliability of the structure can be improved and the service life can be prolonged.
Description
Technical field
The present invention relates to mechanical antivibration area, more particularly to a kind of Torsional Vibration of Shafts oscillation damping method and its should
With.
Background technology
For the wind power generating set with gearbox drive and marine tidal-current energy generator group, its transmission system twisting vibration with
Based on first-order modal frequency.Significantly reduce first-order modal component in twisting vibration, will cause that transmission system operation is more steady, each zero
The torsional fatigue load of part is smaller, is conducive to improving reliability of structure and life-span.
At present in wind power generating set and marine tidal-current energy generator group, the vibration damping more in the form of gear box vibration damping support.
The technical scheme of reduction transmission system twisting vibration common in automobile industry has driven disc type and double mass flywheel formula torsional oscillation to subtract
Shake device.Driven disc type and double Mass Flywheel Type Torsional Vibration Damper can effectively reduce high frequency vibrating equivalent to mechanical low pass filter
It is dynamic.Both modes be all on load transfer path with cascade add spring-damper damper unit, but driven disc type and
Double Mass Flywheel Type Torsional Vibration Damper needs "off" transmission system and adds shock absorber with cascade, and this is just changed originally
The structure type of transmission system, therefore, both technical schemes cannot be implemented in the transmission system run.
Therefore, how to found a kind of flexibility strong, can effectively subtract on the basis of transmission system original structure is not destroyed
The new Torsional Vibration of Shafts oscillation damping method for shaking, real category current industry pole needs improved target.
The content of the invention
It is an object of the invention to provide a kind of Torsional Vibration of Shafts oscillation damping method, make that its flexibility is strong, good damping result, energy
Enough vibration dampings notable on the basis of transmission system original structure is not destroyed, so as to overcome the existing vibration-proof structure inconvenience later stage to repair
Deficiency.
A further object of the present invention is to provide using said system in the transmission system of wind-force/marine tidal-current energy generator group
Application.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of Torsional Vibration of Shafts oscillation damping method, is to install torsional vibration damper, the torsion with parallel form on power transmission shaft
The shock absorber that shakes is tuning rotary inertia damper, and is reversed by certain single order in the twist motion of power transmission shaft reduction transmission system
The level of vibration of modal frequency.
Further, the torsional vibration damper is arranged on the maximum phase of certain single order torsion mode vibration shape of the transmission system
To corner.
Further, the arrange parameter of the torsional vibration damper is obtained in accordance with the following methods：A. former transmission system is calculated
Modal frequency, it is determined that needing certain single order Torsion mode frequency ω of vibration dampingr；B. it is the rotary inertia of torsional vibration damper and institute to set μ
State certain single order Torsion mode frequency ωrThe ratio between modal mass, select μ values, and according toCalculate torsional vibration damper
The natural frequency of vibration compares f with the optimum frequency of certain single order Torsion mode frequencyopt；According toCalculate torsional vibration damper
Optimal damping rate ζdopt；C. according to Id=μ ImodeCalculate the rotary inertia I of torsional vibration damperd, wherein ImodeIt is mesh to be damped
Mark the modal mass of mode；According to ωd=foptωrCalculate the natural frequency of vibration ω of torsional vibration damperd；According to Kdamper=Idωd 2Meter
Calculate the torsional rigidity K of torsional vibration damperdamper；According toCalculate torsional vibration damper
Torsion damping Cdamper。
Further, μ values are 0.01~0.05 in the step B.
Further, the torsional vibration damper is the rotatable loop configuration on the power transmission shaft, including outer shroud
Partial flywheel and the spring-damper structure of annular inner portion, the flywheel are connected with spring-damper structure；When the flywheel with
When power transmission shaft relatively rotates, the spring-damper structure produces the power of circumferencial direction.
Further, the spring-damper structure includes inner ring and spring-damper unit, on the inner ring radially
To multiple evaginations are externally provided with, the inner edge of the flywheel is provided with multiple convexes radially inward, and the evagination intersects with convex
Arrange and be uniformly distributed, the spring-damper unit is connected between adjacent evagination and convex.
Further, the spring-damper unit is set by single-row or multiple row, and each column is along the circumference with ring heart as the center of circle
It is uniformly distributed.
Further, the torsional vibration damper includes the installation sleeve for being fixed on the power transmission shaft, the inner ring
It is fixedly connected with installation sleeve.
Further, the two ends of the installation sleeve are separately installed with bearing, the bearing block of the bearing and the outer shroud
Partial flywheel is fixedly connected.
The application of described Torsional Vibration of Shafts oscillation damping method, is the high speed shaft shaft coupling in wind-force/marine tidal-current energy generator group
The torsional vibration damper is installed, to reduce the vibration water of transmission system single order Torsion mode frequency on the axle that device is connected with generator
It is flat.
At least there is advantages below due to using above-mentioned technical proposal, the present invention：
(1) driven disc type and double Mass Flywheel Type Torsional Vibration Damper can be effectively reduced equivalent to mechanical low pass filter
Dither；The present invention increases a torsional vibration damper on power transmission shaft with parallel form, equivalent to mechanical trapper, Ke Yiyou
Effect reduces the level of vibration of a certain modality-specific frequency of torsional direction in transmission system.
(2) driven disc type and double Mass Flywheel Type Torsional Vibration Damper are needed "off" transmission system and are added with cascade
Shock absorber, this just changes the structure type of original transmission system, cannot implement in the transmission system run.The present invention
Torsional vibration damper is added with parallel form, the form of original transmission system is not destroyed, can be used in the transmission system run,
Reduce vibration or repair abnormal vibrations.
(3) method of the present invention can apply on blower fan but is not limited to blower fan, it is also possible to be applied to marine tidal-current energy hair
Group of motors or car transmissions etc..As a example by being applied to generating set, can be connected with generator in high speed shaft shaft coupling
Axle on the torsional vibration damper of the form is installed, by reducing first-order modal component in twisting vibration, transmission system will be caused
Operation is more steady, and the torsional fatigue load of each parts is smaller, is conducive to improving reliability of structure and life-span.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand technological means of the invention, below
With reference to accompanying drawing, the present invention is described in further detail with specific embodiment.
Figure 1A is torsional vibration damper schematic diagram.
Figure 1B is sectional view along AA in Figure 1A.
Fig. 2 is former transmission system schematic diagram.
Fig. 3 is the transmission system schematic diagram with torsional vibration damper.
Fig. 4 is comparison diagram before and after transmission system frequency response curve.
Specific embodiment
The present invention provides a kind of Torsional Vibration of Shafts oscillation damping method, is added with parallel form predominantly in transmission system and turned round
Shaken shock absorber, and vibration damping, effect is significant are carried out for a certain modality-specific frequency on torsional direction, and parallel form does not change original
First drive system structure form, can be used to repair abnormal vibrations afterwards.
The mechanics principle of the technical scheme for tuning rotary inertia vibration damping, i.e., tuning rotary inertia damper (including turn
Dynamic inertia block, spring and damping unit) it is connected in transmission system, it is humorous with the control vibration shape of transmission system by rotary inertia block
Shake and the torsional vibration energy in transmission system is transferred on tuning rotary inertia damper, so as to suppress the torsion of transmission system
Vibration.
Based on above-mentioned principle, the structure of torsional vibration damper may be designed as following form：One is had compared with large rotating inertia
Flywheel be connected on former power transmission shaft by spring-damper structure, when flywheel and power transmission shaft relatively rotate, spring-resistance
Buddhist nun's structure produces the power of circumferencial direction.
Below by taking double-feedback aerogenerator group as an example, embodiments of the present invention and operation principle are introduced.
As shown in Figure 1A, Figure 1B, torsional vibration damper is connected installed in wind power generating set high speed shaft shaft coupling with generator
Axle on, the structure type of torsional vibration damper is set to be arranged on rotatable loop configuration on power transmission shaft 1, including outer ring portion
Flywheel 7 and annular inner portion spring-damper structure, the flywheel 7 is connected with spring-damper structure；When the torsional oscillation vibration damping
When device relatively rotates with power transmission shaft 1, the spring-damper structure produces the power of circumferencial direction.
Installation sleeve 2 is fixedly connected with power transmission shaft 1 by interference fit, the spring-damper of torsional vibration damper annular inner portion
Structure has inner ring 6, and inner ring 6 is fixed in installation sleeve 2.The two ends of installation sleeve 2 are provided with bearing, respectively right bearing 3,
Left bearing 10, corresponding, the right bearing 3 is arranged in right axle bearing 5, and outside is equipped with right bearing lid 4；Left bearing 10 is arranged on
On left shaft holder 8, outside is equipped with left bearing lid 9.Locking nut 11 is threadingly attached in installation sleeve 2, for fixed left
Bearing 10.Left bearing lid 9, right bearing lid 4 are separately fixed on left and right bearing 8,3 by bolt 12；Left shaft holder 8, right bearing
Seat 5 is fixedly connected by bolt and pad 13 with the flywheel 7.
As shown in Figure 1B, the spring-damper structure includes multiple spring-damper units 14, the inner edge edge of the flywheel 7
Multiple convexes are radially-inwardly provided with, multiple evaginations are radially provided with the inner ring 6, the evagination crosses one another with convex
Arrange and be uniformly distributed, the spring-damper unit 14 is connected between adjacent evagination and convex.
The multiple spring-damper unit 14 is set by axially single-row or multiple row, and each column is along the circle with ring heart as the center of circle
Week is uniformly distributed.Spring-damper unit 14 in Figure 1A, Figure 1B is the form of dually arrayed, each column circumference uniform distribution 8, only
Example, can be in the form of, any columns arrangement any number of using circumference uniform distribution.Spring in spring-damper unit 14 includes
But extension spring, compression spring, torsionspring etc. are not limited to, damper includes but is not limited to cylinder damper, hydraulic damping
Device etc..
Additionally, being based on above-mentioned design basic thought, the structure of torsional vibration damper can have following variants：
To be fixedly connected between power transmission shaft 1 and installation sleeve 2, between installation sleeve 2 and torsional vibration damper inner ring 6, can be with
Using interference fit, be bonded connect, spline connection, pin connection, expansion set connection, type face connection, astrolabe connection etc. various types of attachment.
Bearing 3,10 is rolling bearing, the including but not limited to all kinds of rolling bearings such as deep groove ball bearing, taper roll bearing.
Right side bearing 3 passes through left side bearing cap 9, left side by right side bearing cap 4, the support flying wheel 7 of right side bearing block 5, left side bearing 10
The support flying wheel 7 of bearing block 8.Bearing 3,10 allows that flywheel 7 makees circular-rotation around power transmission shaft 1.
Based on above-mentioned form of implementation, the brief introduction of work principle of oscillation damping method of the present invention is as follows.
When torsional vibration damper is not installed, as shown in Fig. 2 transmission system can be reduced to two mass spring oscillators, i.e. wind wheel and
Generator amature is connected with torsionspring-damping unit.
Note：The rotary inertia of wind wheel and generator amature, transmission system rigidity, damped coefficient are equivalent paramount in Fig. 2
The numerical value of fast axle side, it is all such below.
The undamped modal frequency of former transmission system is：
Wherein：
Ir--- wind wheel rotary inertia
Ig--- generator amature rotary inertia
Kdrivetrain--- equivalent transmission system torsional rigidity
Ratio of damping is：
Wherein：
Cdrivetrain--- equivalent transmission system reverses damping
Have damping modal frequency be：
The modal frequency ω for calculating hereinrIt is transmission system fundamental frequency.In wind power generating set transmission system zero
The twisting vibration of part based on the frequency content, therefore, herein specify reduce wind power generating set transmission system First-Order Mode
State frequency.
After torsional vibration damper is installed on the axle that high speed shaft shaft coupling is connected with generator, the kinetic model of transmission system
As shown in Figure 3：
Wherein：
Id--- the rotary inertia of torsional vibration damper
Kdamper--- the torsional rigidity of torsional vibration damper
Cdamper--- the torsion damping of torsional vibration damper
For convenience of discussion, created symbol：
The ratio between rotary inertia of μ --- torsional vibration damper and former transmission system,
ωd--- the natural frequency of vibration of torsional vibration damper,
ζd--- the ratio of damping of torsional vibration damper,
The ratio of the natural frequency of vibration of f --- torsional vibration damper and former transmission system frequency,
When frequency than f close to 1 when, torsional vibration damper and former driveline resonance, by the vibrational energy in former transmission system
Amount is transferred on torsional vibration damper, so as to suppress the twisting vibration of former transmission system.
According to the vibration attenuation mechanism of tuning rotary inertia damper, the optimal parameter of torsional vibration damper is：
For the wind power generating set with gearbox drive and marine tidal-current energy generator group, its transmission system twisting vibration with
Based on first-order modal frequency.The method provided using the present invention significantly reduces first-order modal component in twisting vibration, will cause to pass
Dynamic system operation is more steady, and the torsional fatigue load of each parts is smaller, is conducive to improving reliability of structure and life-span.As schemed
Shown in 4, after installing torsional vibration damper, the torsion vibration response amplitude of transmission system significantly reduces.
Oscillation damping method of the invention is in practical application, be not limited to install described in wind power generating set transmission system
Form torsional vibration damper, can be applied in the transmission system of any products, such as marine tidal-current energy generating set or car transmissions.
Also, twisting vibration of the former transmission system near setting modal frequency can be significantly reduced, setting modal frequency can be any
The modal frequency of order, such as the 2nd rank or the 5th rank etc. are specified, but vibration damping can only be carried out for certain single order, it is impossible to while subtracting
The level of vibration of small two ranks modal components.
For different transmission systems, the design cycle of torsional vibration damper can be carried out by following processes：
The modal frequency of former transmission system is calculated first, and determination needs the frequencies omega of certain first-order modal of vibration dampingrAnd mould
At state vibration shape maximum relative rotation.It is the installation site of torsional vibration damper at Mode Shape maximum relative rotation, pacifies as far as possible
The big place of relative rotation in Mode Shape, can improve effectiveness in vibration suppression.
Determine the ratio of inertias μ of torsional vibration damper, calculate the rotary inertia I of torsional vibration damperd.μ is bigger, and effectiveness in vibration suppression is got over
It is good, but cost is higher.According to engineering practical experience, generally, μ takes 0.01~0.05.
For fan transmission system, Id=μ (Ir+Ig)。
For other transmission systems, Id=μ Imode.Wherein ImodeIt is the modal mass of target modalities to be damped.
According to selected ratio of inertias μ, optimum frequency ratio is calculated
Then the natural frequency of vibration of torsional vibration damper is：
ωd=foptωr
The torsional rigidity of torsional vibration damper is：
Kdamper=Idωd 2
According to selected ratio of inertias μ, the optimal damping rate of torsional vibration damper is calculated
The then torsion of torsional vibration damper damps and is：
According to the rotary inertia I of the torsional vibration damper for calculatingd, torsional rigidity Kdamper, reverse damping Cdamper, passed with reference to original
The structure limitation of dynamic system, carries out the detailed design of torsional vibration damper with reference to Figure 1A, Figure 1B, including structure type, specification,
Spring-damper element number, the rigidity of spring-damper unit and damped coefficient, the rotary inertia of flywheel etc..
Specifically, flywheel 7, left shaft holder 8, right axle bearing 5, left bearing lid 9, right bearing lid 4, left bearing 10 it is outer
Circle, the outer ring of right bearing 3 and between total rotary inertia of connecting bolt be the rotary inertia I being calculatedd, spring-
The equivalent torsional stiffness of damping unit 14 is the K being calculateddamper, it is equivalent to reverse the C that damping is as calculateddamper。
For the structure in Figure 1A, Figure 1B, spring-damper unit 14 is dually arrayed, each column circumference uniform distribution 8, altogether
16.By taking pressure-bearing spring, pressure-bearing damping as an example, when flywheel 7 is rotated clockwise or counterclockwise with respect to power transmission shaft 1, each column circumference
On there are 4 spring-damper units 14 to produce the relative rotation of restoring force resistance flywheels 7 and power transmission shaft 1, biserial amount to 8 springs-
Damping unit 14 produces restoring force.If the rigidity of each spring-damper unit 14 is K1, damp and be C1；It is uniformly distributed along the circumference
Spring-damper unit 14 is R (a diameter of 2R of the circumference that spring-damper unit 14 is formed) with the axial line distance of power transmission shaft 1.
Then have：
Kdamper=8K1R2
Cdamper=8C1R2
Then, the rigidity of spring-damper unit 14 is：Damp and be：
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, this
Art personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (9)
1. a kind of Torsional Vibration of Shafts oscillation damping method, it is characterised in that be that torsional oscillation vibration damping is installed with parallel form on power transmission shaft
Device, the torsional vibration damper is tuning rotary inertia damper, and by the twist motion of power transmission shaft reduction transmission system
The level of vibration of certain single order Torsion mode frequency；
The arrange parameter of the torsional vibration damper is obtained in accordance with the following methods：
A. the modal frequency of former transmission system is calculated, it is determined that needing certain single order Torsion mode frequency ω of vibration dampingr；
B. it is the rotary inertia and certain single order Torsion mode frequency ω of torsional vibration damper to set μrThe ratio between modal mass, select μ
Value, and according toCalculate the natural frequency of vibration of torsional vibration damper and the optimum frequency ratio of certain single order Torsion mode frequency
fopt；According toCalculate the optimal damping rate ζ of torsional vibration damperd opt；
C. according to Id=μ ImodeCalculate the rotary inertia I of torsional vibration damperd, wherein ImodeIt is the mode of target modalities to be damped
Quality；
According to ωd=foptωrCalculate the natural frequency of vibration ω of torsional vibration damperd；
According to Kdamper=Idωd 2Calculate the torsional rigidity K of torsional vibration damperdamper；
According toCalculate the torsion damping C of torsional vibration damperdamper。
2. Torsional Vibration of Shafts oscillation damping method according to claim 1, it is characterised in that the torsional vibration damper is arranged on
At the maximum relative rotation of certain single order torsion mode vibration shape of the transmission system.
3. Torsional Vibration of Shafts oscillation damping method according to claim 1, it is characterised in that μ values are in the step B
0.01~0.05.
4. Torsional Vibration of Shafts oscillation damping method according to claim 1, it is characterised in that the torsional vibration damper is to install
The rotatable loop configuration on the power transmission shaft, including outer ring portion flywheel and the spring-damper structure of annular inner portion, institute
Flywheel is stated to be connected with spring-damper structure；When the flywheel and power transmission shaft relatively rotate, the spring-damper structure
Produce the power of circumferencial direction.
5. Torsional Vibration of Shafts oscillation damping method according to claim 4, it is characterised in that the spring-damper structure bag
Inner ring and spring-damper unit are included, multiple evaginations are radially provided with the inner ring, the inner edge of the flywheel is radially
Multiple convexes are provided inwardly with, the evagination intersects with convex and arranges and be uniformly distributed, and the spring-damper unit is connected to
Between adjacent evagination and convex.
6. Torsional Vibration of Shafts oscillation damping method according to claim 5, it is characterised in that the spring-damper unit is pressed
Single-row or multiple row is set, and each column is along the even circumferential distribution with ring heart as the center of circle.
7. Torsional Vibration of Shafts oscillation damping method according to claim 5, it is characterised in that the torsional vibration damper includes using
In the installation sleeve being fixed on the power transmission shaft, the inner ring is fixedly connected with installation sleeve.
8. Torsional Vibration of Shafts oscillation damping method according to claim 6, it is characterised in that the two ends of the installation sleeve point
Bearing is not installed, the bearing block of the bearing is fixedly connected with the flywheel of the outer ring portion.
9. the application of the Torsional Vibration of Shafts oscillation damping method described in any one of claim 1-8, it is characterised in that be wind-force/
The torsional vibration damper is installed on the axle that the high speed shaft shaft coupling of marine tidal-current energy generator group is connected with generator, to reduce power train
The level of vibration of unified rank Torsion mode frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155620.7A CN104896007B (en) | 2015-04-02 | 2015-04-02 | A transmission system torsional vibration reducing method and application thereof |
Applications Claiming Priority (1)
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| WO2017070915A1 (en) * | 2015-10-30 | 2017-05-04 | 林高合 | Flywheel device |
| CN109654162B (en) * | 2019-02-01 | 2024-04-12 | 青岛理工大学 | Active composite damping-variable rotation control device |
| CN109899448A (en) * | 2019-03-11 | 2019-06-18 | 汉腾汽车有限公司 | A kind of automobile twisting vibration wideband vibration and noise reducing device |
| CN110103972B (en) * | 2019-05-23 | 2020-09-01 | 衢州职业技术学院 | Torsional resonance control method of vehicle multi-power source coupled transmission system |
| CN112560216A (en) * | 2019-09-24 | 2021-03-26 | 上海汽车集团股份有限公司 | Parameter configuration method and device and vehicle |
| CN111364410B (en) * | 2020-01-20 | 2025-02-18 | 中国海洋大学 | Vibration reduction structure and vibration reduction method of a permeable breakwater |
| CN111288149B (en) * | 2020-02-12 | 2021-09-28 | 常州工学院 | Portable high damping is gyration power vibration attenuation gear drive for axle |
| CN115030986B (en) * | 2022-05-13 | 2023-04-18 | 安徽工程大学 | Piezoelectric active flywheel for suppressing torsional vibration of vehicle transmission shaft and control method |
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Address after: 071051 No.88, Fengfeng street, high tech Development Zone, Baoding City, Hebei Province Patentee after: Guoneng United Power Technology (Baoding) Co.,Ltd. Address before: 071051 No.88, Fengfeng street, high tech Development Zone, Baoding City, Hebei Province Patentee before: GUODIAN UNITED POWER TECHNOLOGY (BAODING) Co.,Ltd. |