CN109977580A - A kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor - Google Patents
A kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor Download PDFInfo
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- CN109977580A CN109977580A CN201910268227.7A CN201910268227A CN109977580A CN 109977580 A CN109977580 A CN 109977580A CN 201910268227 A CN201910268227 A CN 201910268227A CN 109977580 A CN109977580 A CN 109977580A
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 31
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- 238000012360 testing method Methods 0.000 claims abstract description 14
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- G—PHYSICS
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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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
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Abstract
The invention discloses a kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor, include the following steps: to construct full freedom degree locomotive rotor dynamics model；Due to the presence for thering is gear to engage, can influence each other in gear train assembly；Consider that Static transmissions error carries out Analysis of response to whole system, analyzes influence of the Static transmissions error to system vibration response characteristic under rated speed；Consider the analysis that gear eccentricity influences gear-rotor system, analyzes the influence of rated speed, speed change degree, eccentric size to whole system；It further expands and considers not coaxial, transfer regularity under different operating conditions is simultaneously analyzed.The present invention has been fruitful by summarizing forefathers, so that the finite element model more closing to reality, error is smaller, test result is more acurrate, considers a variety of situations, different running speeds, so that it is closer to actual condition, more there are research significance and value, consider the coupling of the rotors such as gear, various combination can be calculated.
Description
Technical field
The present invention relates to the vibration analysis methods of rail locomotive vehicle rotor, in particular to a kind of to be based on rail locomotive vehicle
The vibration Simulation Analysis method of rotor.
Background technique
Rapid along with the economic development of the mankind on the whole in today's society, rhythm of life is very fast what is gradually become, life
Pursue and be continuously available promotions also with object qualitative diversity, thus people about trip tool select to also tend to it is convenient, safe,
Shu Yun.In order to adapt to numerous demands of people, bullet train also progressed into the visual field of people in recent years, and with people
Demand obtained vigorous growth, but therewith the safe and stable property of bring bullet train the problems such as, be in entire high speed
Solution is had in train R&D process.
Although domestic and foreign scholars have done many analysis and research to rotor dynamics, for the research in terms of locomotive
It is fewer, theoretical foundation is inadequate.Bending vibration, twisting vibration are the principal vibration forms of traditional sense upper rotor part system, closely
Nian Lai, the theoretical foundation that the analog simulation of these vibration modes comes out, sufficient explain of having no way had caused major accident
Phenomenon, it is difficult to which the situation of reality is accurately analyzed.
Summary of the invention
The purpose of the present invention is to provide a kind of vibration Simulation Analysis methods based on rail locomotive vehicle rotor, by total
Knot forefathers have been fruitful, so that the finite element model more closing to reality, error is smaller, and test result is more acurrate, consider a variety of
Situation, different running speeds consider the coupling of the rotors such as gear so that it closer to actual condition, more has research significance and value,
Various combination can be calculated, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor, includes the following steps:
Step 1: the foundation of system model is handled rotor as a rigid body in researching and analysing, and rotor tooth
Connection between wheel can be equivalent to bullet Huang, damping unit, and the elastic coupling system linear change, not consider rotation process position
The change set, can simplify processing is that the position for the being heart in the rotor is concentrated suffered by rotor, considers input and output torque factor, structure
Full freedom degree locomotive rotor dynamics model is built, finite element model is optimized；
Step 2: due to the presence for thering is gear to engage, can influence each other in gear train assembly, for the bearing of multiaxis
In the case that rotor-support-foundation system engages between gear, mutual coupled vibrations can be generated between uniaxial and no longer independent；
Step 3: considering that Static transmissions error carries out Analysis of response to whole system, in conjunction with rotor-support-foundation system related law
And pertinent literature is referred to, under actual condition, determine the Static transmissions error of system, analysis static transmitting under rated speed misses
Influence of the difference to system vibration response characteristic；
Step 4: considering the analysis that gear eccentricity influences gear-rotor system, analyze rated speed, speed change degree, bias
Influence of the size to whole system；
Step 5: further expanding and consider not coaxial, transfer regularity under different operating conditions is simultaneously analyzed.
Further, S1 further includes simulation model vibration calculating, and compares rotor-support-foundation system and rotor oscillation simulation model knot
Fruit, if comparing result unanimously if carry out locomotive rotor oscillation model test verifying, locomotive is re-established if inconsistent
Rotor oscillation simulation model model.
Further, S4 middle gear vibration of rotor system response frequency ingredient includes driving shaft rotational frequency, driven shaft turn
The meshing frequency of dynamic frequency, gear.
Further, the vibration for ingredient frequently is turned with master and slave moving axis, it is in a linear relationship, using gear mesh frequency as ingredient
Vibration, amplitude is unchanged；With the increase of eccentricity, driving shaft, driven shaft turn the linear increase of frequency amplitude, and gear is nibbled
Sum of fundamental frequencies rate does not change.
Further, different operating conditions are calculated after contrast simulation test result and experimental test result, lower turn of different rotating speeds
Sub- Vibration Condition.
Compared with prior art, the beneficial effects of the present invention are:
1. the vibration Simulation Analysis method proposed by the present invention based on rail locomotive vehicle rotor, on rail locomotive vehicle
Target of the typical rotor system as analysis, in conjunction with data with existing so that the finite element model more closing to reality, error compared with
Small, test result is more acurrate.
2. the vibration Simulation Analysis method proposed by the present invention based on rail locomotive vehicle rotor, constructs based on finite element
Theoretical more accurate rotor dynamics model, and carry out inherent characteristic and research and analyse, and consider uneven in system
The influence that measurement, rotor eccentricity, transmission error respond whole system considers a variety of situations, different running speeds, so that it is more
Closing to reality operating condition more has research significance and value.
3. the vibration Simulation Analysis method proposed by the present invention based on rail locomotive vehicle rotor considers the rotors couplings such as gear
It closes, various combination can be calculated.
Detailed description of the invention
Fig. 1 is algorithm flow chart of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor, includes the following steps:
Step 1: the foundation of system model is handled rotor as a rigid body in researching and analysing, and rotor tooth
Connection between wheel can be equivalent to bullet Huang, damping unit, and the elastic coupling system linear change, not consider rotation process position
The change set, can simplify processing is that the position for the being heart in the rotor is concentrated suffered by rotor, considers the factors such as input and output torque,
Full freedom degree locomotive rotor dynamics model is constructed, finite element model is optimized；
Step 2: due to the presence for thering is gear to engage, can influence each other in gear train assembly, for the bearing of multiaxis
In the case that rotor-support-foundation system engages between gear, mutual coupled vibrations can be generated between uniaxial and no longer independent.The present invention according to
Object according to entire gear-rotor system as research carries out the pendulum coupling inherent characteristic research of bending axis to system, and and single
Axis inherent characteristic, which is carried out, to be compared, and is obtained and is had to using whole system as research object, and carries out unbalance Response Analysis and grind ingeniously；
Step 3: considering that Static transmissions error carries out Analysis of response to whole system, in conjunction with rotor-support-foundation system related law
And pertinent literature is referred to, under actual condition, determine the Static transmissions error of system, analysis static transmitting under rated speed misses
Influence of the difference to system vibration response characteristic；
Step 4: considering the analysis that gear eccentricity influences gear-rotor system, analyze rated speed, speed change degree, bias
Influence of the conditions such as size to whole system.Available, gear-rotor system vibratory response frequency content mainly has driving shaft
Rotational frequency, driven shaft rotational frequency, gear meshing frequency；Therefore it can be simply considered that and be turned based on frequency with master and slave moving axis
The vibration of ingredient is wanted, substantially in a linear relationship, with gear mesh frequency vibration as main component, amplitude is substantially unchanged；
With the increase of eccentricity, driving shaft, driven shaft turn the linear increase of frequency amplitude, and gear mesh frequency does not change substantially；
Step 5: further expanding and consider not coaxial, transfer regularity under different operating conditions is simultaneously analyzed.
The present invention is using the typical rotor system on rail locomotive vehicle as the target of analysis, in conjunction with data with existing, building
More accurate rotor dynamics model based on finite element theory, and carry out inherent characteristic and research and analyse, and consider
The influence that amount of unbalance, rotor eccentricity, transmission error respond whole system in system, result of study can be railway locomotive
Rotor-support-foundation system design provides certain technical support with parameter optimization.
Algorithm flow of the invention such as Fig. 1, specific steps include:
Step 1: establishing rolling stock rotor oscillation simulation model model；
Step 2: carrying out simulation model vibration calculating；
Step 3: comparison rotor-support-foundation system and rotor oscillation simulation model if inconsistent as a result, return to the first step, such as
Fruit unanimously then carries out the verifying of locomotive rotor oscillation model test；
Step 4: contrast simulation test result and experimental test result；
Step 5: different operating conditions are calculated, different rotating speeds lower rotor part Vibration Condition.
Compared with prior art, the present invention although domestic and foreign scholars have done many analysis and research to rotor dynamics,
But inadequate for the fewer of the research in terms of locomotive, theoretical foundation, the present invention introduces finite element in rolling stock and builds
Mould and emulation can provide certain reference for the operation and production of vehicle, meanwhile, the present invention is productive in summary forefathers
On the basis of, so that the finite element model more closing to reality, error is smaller, and test result is more acurrate, considers a variety of situations, different
Running speed, so that it has bigger research significance and value closer to actual condition.
In conclusion the vibration Simulation Analysis method proposed by the present invention based on rail locomotive vehicle rotor, with track machine
Target of the typical rotor system as analysis on vehicle vehicle, in conjunction with data with existing, so that the finite element model is more close to reality
Border, error is smaller, and test result is more acurrate, constructs the more accurate rotor dynamics mould based on finite element theory
Type, and carry out inherent characteristic and research and analyse, and consider amount of unbalance in system, rotor eccentricity, transmission error to whole system
The influence of response considers a variety of situations, different running speeds, so that it closer to actual condition, more has research significance and value,
Consider the rotors coupling such as gear, various combination can be calculated, result of study can for railway locomotive rotor-support-foundation system design with
Parameter optimization provides certain technical support.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor, which comprises the steps of:
S1: the foundation of system model is handled rotor as a rigid body in researching and analysing, and between rotor gear
Connection can be equivalent to bullet Huang, damping unit, and the elastic coupling system linear change, not consider changing for rotation process position
Change, can simplify processing is that the position for the being heart in the rotor is concentrated suffered by rotor, considers input and output torque factor, is constructed entirely certainly
By degree locomotive rotor dynamics model, finite element model is optimized；
S2: it due to the presence for thering is gear to engage, can influence each other in gear train assembly, for the bearing rotor system of multiaxis
In the case where engagement between gear, mutual coupled vibrations can be generated between uniaxial and no longer independent；
S3: consider that Static transmissions error carries out Analysis of response to whole system, in conjunction with rotor-support-foundation system related law and refer to
Pertinent literature determines the Static transmissions error of system under actual condition, analysis under rated speed Static transmissions error to being
The influence for vibratory response characteristic of uniting；
S4: considering the analysis that gear eccentricity influences gear-rotor system, analyzes rated speed, speed change degree, eccentric size pair
The influence of whole system；
S5: it further expands and considers not coaxial, transfer regularity under different operating conditions is simultaneously analyzed.
2. a kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor according to claim 1, feature exist
In S1 further includes simulation model vibration calculating, and compares rotor-support-foundation system and rotor oscillation simulation model as a result, if comparing result
It is consistent then carry out locomotive rotor oscillation model test verifying, re-established if inconsistent rolling stock rotor oscillation emulation mould
Pattern type.
3. a kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor according to claim 1, feature exist
It include that driving shaft rotational frequency, driven shaft rotational frequency, gear are nibbled in, S4 middle gear vibration of rotor system response frequency ingredient
Sum of fundamental frequencies rate.
4. a kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor according to claim 3, feature exist
In, with master and slave moving axis turn frequency be ingredient vibration, it is in a linear relationship, using gear mesh frequency as the vibration of ingredient, amplitude without
Variation；With the increase of eccentricity, driving shaft, driven shaft turn the linear increase of frequency amplitude, and gear mesh frequency does not change.
5. a kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor according to claim 1, feature exist
In later contrast simulation test result and experimental test result calculate different operating conditions, different rotating speeds lower rotor part Vibration Condition.
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| CN201910268227.7A CN109977580A (en) | 2019-04-04 | 2019-04-04 | A kind of vibration Simulation Analysis method based on rail locomotive vehicle rotor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111353200A (en) * | 2020-03-03 | 2020-06-30 | 西南交通大学 | Locomotive motor bearing dynamics simulation analysis platform, device and method |
| CN115077826A (en) * | 2022-05-27 | 2022-09-20 | 东北大学 | Rotor system vibration response similar scaling experiment method considering coupling variable power number |
-
2019
- 2019-04-04 CN CN201910268227.7A patent/CN109977580A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111353200A (en) * | 2020-03-03 | 2020-06-30 | 西南交通大学 | Locomotive motor bearing dynamics simulation analysis platform, device and method |
| CN115077826A (en) * | 2022-05-27 | 2022-09-20 | 东北大学 | Rotor system vibration response similar scaling experiment method considering coupling variable power number |
| CN115077826B (en) * | 2022-05-27 | 2023-03-28 | 东北大学 | Rotor system vibration response similar scaling experiment method considering coupling variable power number |
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