CN106124126B - The separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic - Google Patents
The separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic Download PDFInfo
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- CN106124126B CN106124126B CN201610529355.9A CN201610529355A CN106124126B CN 106124126 B CN106124126 B CN 106124126B CN 201610529355 A CN201610529355 A CN 201610529355A CN 106124126 B CN106124126 B CN 106124126B
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- 238000012360 testing method Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 110
- 230000001133 acceleration Effects 0.000 claims description 33
- 238000005259 measurement Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
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- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic, first, tests the vibratory response under base state；Secondly, add an examination of on transmission shaft heavy, and test the vibratory response under the state；Then, transmission shaft is dismantled and installed after overturning 180 degree, test the vibratory response under the state；Finally, the remaining unbalancing value of power train all parts is calculated.The present invention can test and isolate the unbalancing value of all parts in transmission system on vehicle.
Description
Technical field
The invention belongs to automotive transmission, and in particular to a kind of separated test point of whole vehicle state underdrive system unbalance dynamic
Analysis method.
Background technology
At present, consumer and automaker to 4-wheel driven car and after drive the noise of transmission system generation and vibration problem is got over
More to pay close attention to.Wherein, power train includes transmission shaft, drive axle and power takeoff (PTU) or speed changer, is that 4-wheel driven car drives to pass with after
The key component of dynamic system, the low-frequency noise and vibration problem that its unbalance dynamic produces are more and more prominent.
Transmission shaft, power takeoff, there are different size of residue in the fabrication process for the rotation axis of speed changer and drive axle
Unbalancing value.After they are assemblied in vehicle, the remaining unbalance dynamic of meeting generation system.Under normal circumstances, only it is driven
Axis does unbalance dynamic test and checks in the fabrication process.The residue of transmission shaft, drive axle and power takeoff (or speed changer) is moved not
Balance phase can be overlapped mutually in vehicle assembling process so that the unbalance dynamic of transmission system is possible larger and produces vibration and makes an uproar
Sound problem.The imbalance of power train is formed by stacking by the unbalance vector of each rotary part, generally by control unit not
Balance reduces the imbalance of transmission system.Therefore, the unbalance dynamic of transmission system all parts is tested and isolated on vehicle
Measure has very important meaning to the remaining unbalancing value for controlling transmission system.
The content of the invention
, can be the object of the present invention is to provide a kind of separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic
The unbalancing value of all parts in transmission system is tested and isolated on vehicle.
The separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic of the present invention, comprises the following steps：
The first step, placement sensor：
Photoelectric sensor is arranged near transmission shaft by (1a), it is ensured that photoelectric sensor can detect transmission
The rotating speed of axis；
(1b) when testing the remaining unbalancing value of transmission shaft and drive axle input shaft, by unidirectional acceleration transducer cloth
Put on drive axle；
When testing the remaining unbalancing value of transmission shaft and transmission output shaft, unidirectional acceleration transducer is arranged in
On speed changer；
When testing the remaining unbalancing value of transmission shaft and power takeoff output shaft, unidirectional acceleration transducer is arranged in
On power takeoff；
Second step, chooses test speed：
Vehicle is placed in two drives or 4 wheel driven rotating hub, or on smooth pitch and straight road surface, by vehicle by 60km/h
It is even to accelerate to 140km/h, the vibratory response of unidirectional acceleration transducer is measured, the speed for choosing vibration amplitude and phase stabilization is made
For follow-up test speed；
3rd step, tests the vibratory response of power train original state：
Vehicle is set to measure the vibratory response of unidirectional acceleration transducer, test n times, record is every in selected vehicle speed cruise
The vibration amplitude and phase once tested；
4th step, vibratory response of the test power train after test mass is increased：
Increase test mass on transmission shaft, vehicle is measured the vibration of unidirectional acceleration transducer in selected vehicle speed cruise
Response, tests n times, records the vibration amplitude tested each time and phase；
5th step, test power train overturn the vibratory response after 180 ° in transmission shaft：
(5a) removes test mass；
(5b) pulls down transmission shaft and drive axle is defeated when testing the remaining unbalancing value of transmission shaft and drive axle input shaft
Enter the connection bolt of axis, be bolted after transmission shaft is overturn 180 ° with the input shaft of drive axle with being connected；
When testing the remaining unbalancing value of transmission shaft and transmission output shaft, transmission shaft and transmission output shaft are pulled down
Connection bolt, be bolted after transmission shaft is overturn 180 ° with transmission output shaft with being connected；
When testing the remaining unbalancing value of transmission shaft and power takeoff output shaft, transmission shaft and power takeoff output shaft are pulled down
Connection bolt, be bolted after transmission shaft is overturn 180 ° with power takeoff output shaft with being connected；
(5c) makes vehicle measure the vibratory response of unidirectional acceleration transducer, test n times, note in selected vehicle speed cruise
Record the vibration amplitude tested each time and phase；
6th step, calculates transmission shaft and drive axle input shaft, or transmission output shaft, or the residue of power takeoff output shaft is moved
Amount of unbalance：
Based on the data measured by the 3rd step to the 5th step, transmission shaft and drive are calculated using influence coefficient method
Dynamic bridge input shaft, or transmission output shaft, or the remaining unbalancing value of power takeoff output shaft.
When vehicle is being tested on smooth pitch and straight road surface, the requirement of road pavement is as follows：
(1) road surface drying is without ponding；
(2) road surface is without accumulated snow, dust, sandstone and other fragments being scattered.
During measurement, wind speed is no more than 5m/s.
In the first step,
When testing the remaining unbalancing value of transmission shaft and drive axle input shaft, unidirectional acceleration transducer is arranged in
Within 1cm near the bearing hole of drive axle input shaft；
When testing the remaining unbalancing value of transmission shaft and transmission output shaft, unidirectional acceleration transducer is arranged in
Within 1cm near the bearing hole of transmission output shaft；
When testing the remaining unbalancing value of transmission shaft and power takeoff output shaft, unidirectional acceleration transducer is arranged in
Within 1cm near the bearing hole of power takeoff output shaft.
Beneficial effects of the present invention：It is sleeved on the present invention provides one and the residues of power train all parts is isolated on vehicle moves
The test of amount of unbalance and analysis method so that the remaining dynamic injustice of the rotation axis of transmission shaft, drive axle and power takeoff or speed changer
Weigh can objective quantification, for transmission system unbalance dynamic produce vibration noise problem optimize direction is provided.Meanwhile evade
Only the respective remaining unbalancing value that aptitude test on unbalance dynamic machine goes out the problem of.
Brief description of the drawings
Fig. 1 is the arrangement of each sensor in the remaining unbalancing value for tested in the present invention transmission shaft and drive axle input shaft
Figure；
Fig. 2 is the layout drawing of test mass in the remaining unbalancing value for tested in the present invention transmission shaft and drive axle input shaft；
Fig. 3 is the scheme of installation after upset transmission shaft 180 degree with drive axle in the present invention；
Fig. 4 is the unbalance dynamic vector correlation of transmission shaft, drive axle input shaft and system；
In figure：1-transmission shaft, 2-drive axle, 3- test mass, 4- photoelectric sensors, the unidirectional acceleration transducers of 5-, 6-
Drive axle input shaft.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
The separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic as shown in Figure 1, comprises the following steps：
The first step, placement sensor：
Photoelectric sensor 4 is arranged near transmission shaft by (1a), it is ensured that photoelectric sensor 4 can detect biography
The rotating speed of moving axis.
(1b) when testing the remaining unbalancing value of transmission shaft and drive axle input shaft, by unidirectional acceleration transducer 5
It is disposed adjacent near the bearing hole of drive axle input shaft within 1cm.
When testing the remaining unbalancing value of transmission shaft and transmission output shaft, unidirectional acceleration transducer 5 is arranged
Within 1cm near the bearing hole close to transmission output shaft.
When testing the remaining unbalancing value of transmission shaft and power takeoff output shaft, unidirectional acceleration transducer 5 is arranged
Within 1cm near the bearing hole close to power takeoff output shaft.
Second step, chooses test speed：
Vehicle is placed in two drives or 4 wheel driven rotating hub, or on smooth pitch and straight road surface；By vehicle by 60km/h
It is even to accelerate to 140km/h, the vibratory response of unidirectional acceleration transducer 5 is measured, chooses the speed of vibration amplitude and phase stabilization
As follow-up test speed.
3rd step, tests the vibratory response of power train original state：
Vehicle is set to measure the vibratory response of unidirectional acceleration transducer 5, test n times, record is every in selected vehicle speed cruise
The vibration amplitude and phase once tested.
4th step, vibratory response of the test power train after test mass is increased：
Increase test mass on transmission shaft, vehicle is measured the vibration of unidirectional acceleration transducer 5 in selected vehicle speed cruise
Response, tests n times, records the vibration amplitude tested each time and phase.
5th step, test power train overturn the vibratory response after 180 ° in transmission shaft：
(5a) removes test mass.
(5b) pulls down transmission shaft and drive axle is defeated when testing the remaining unbalancing value of transmission shaft and drive axle input shaft
Enter the connection bolt of axis, be bolted after transmission shaft is overturn 180 ° with the input shaft of drive axle with being connected.
When testing the remaining unbalancing value of transmission shaft and transmission output shaft, transmission shaft and transmission output shaft are pulled down
Connection bolt, be bolted after transmission shaft is overturn 180 ° with transmission output shaft with being connected.
When testing the remaining unbalancing value of transmission shaft and power takeoff output shaft, transmission shaft and power takeoff output shaft are pulled down
Connection bolt, be bolted after transmission shaft is overturn 180 ° with power takeoff output shaft with being connected.
(5c) makes vehicle measure the vibratory response of unidirectional acceleration transducer 5, test n times, note in selected vehicle speed cruise
Record the vibration amplitude tested each time and phase.
6th step, calculates transmission shaft and drive axle input shaft, or transmission output shaft, or the residue of power takeoff output shaft is moved
Amount of unbalance：
Based on the data measured by the 3rd step to the 5th step, transmission shaft and drive are calculated using influence coefficient method
Dynamic bridge input shaft, or transmission output shaft, or the remaining unbalancing value of power takeoff output shaft.
Below exemplified by isolating transmission shaft and the respective remaining unbalancing value of drive axle, the present invention is carried out in detail
Explanation：
1st, unidirectional acceleration transducer 5 is arranged within 1cm near the bearing hole close to drive axle input shaft 6, close
Photoelectric sensor 4 is arranged near transmission shaft 1 within 1cm, referring to Fig. 1.
2nd, test request is in two drives or 4 wheel driven rotating hub, or is carried out on smooth pitch and straight road surface；Dry nothing in road surface
The debris such as ponding, cleaning road snow, dust, sandstone and other fragments being scattered.5m/s is not to be exceeded in wind speed during measurement,
It must be noted that influence of the measurement result from fitful wind.Vehicle-state should be checked before test, it is ensured that vehicle-state is intact.By vehicle by
60km/h is even to accelerate to 140km/h, measures the vibratory response of unidirectional acceleration transducer 5.Choose vibration amplitude and phase stabilization
Speed for follow-up test speed (such as：120km/h).
3rd, the vibratory response of power train original state is tested：
Vehicle is set to test the vibratory response of unidirectional acceleration transducer 5 in selected vehicle speed cruise (120km/h)Survey
Examination 6 times, records the vibration amplitude tested each time and phase, referring to table 1.If transmission shaft 1 and drive axle input shaft 6 is dynamic
Amount of unbalance is respectivelyWithThen：
WhereinIt is to influence coefficient, and vector.Since vibratory response, influence coefficient and unbalancing value are vector, that
Formula (1) can be converted into：
4th, vibratory response of the power train after test mass is increased is tested：
The influence coefficient of system is tested out, the remaining unbalancing value for computing system.In transmission shaft 1 close to drive axle
End on add certain mass test massReferring to Fig. 2.Again so that vehicle operates in selected speed (120km/h) and patrols
Boat, tests the vibratory response of unidirectional acceleration transducer 5Test 6 times, records the vibration amplitude tested each time and phase
Position, referring to table 1, then obtain influencing coefficient
5th, the remaining unbalancing value of transmission shaft and drive axle is tested：Test mass 3 is removed, transmission shaft 1 is pulled down and drive axle is defeated
Enter the connection bolt of axis 6, transmission shaft 1 is overturn and is bolted with drive axle input shaft 6 with being connected after 180 degree, referring to Fig. 3.Most
Afterwards, vehicle is cruised again in certain speed (120km/h), test the vibratory response of unidirectional acceleration transducer 5And remember
The vibration amplitude tested each time and phase are recorded, referring to table 1, then：
6th, the data obtained by above-mentioned test, the surplus of transmission shaft 1 and drive axle can be calculated using influence coefficient method
Remaining unbalancing value, referring to table 2.
Table 1 is the test recorded data of the 3rd step, the 4th step and the 5th step：
Table 1
Table 2 is the unbalancing value being calculated according to the data of table 1 by formula (1) to formula (7).
Table 2
Fig. 4 is the unbalance dynamic vector correlation of transmission shaft, drive axle input shaft and system.
Claims (4)
1. the separated method for testing and analyzing of a kind of whole vehicle state underdrive system unbalance dynamic, it is characterised in that comprise the following steps：
The first step, placement sensor：
（1a）Photoelectric sensor is arranged near transmission shaft, it is ensured that photoelectric sensor can detect transmission shaft
Rotating speed；
（1b）When testing the remaining unbalancing value of transmission shaft and drive axle input shaft, unidirectional acceleration transducer is arranged in
On drive axle；
When testing the remaining unbalancing value of transmission shaft and transmission output shaft, unidirectional acceleration transducer is arranged in speed change
On device；
When testing the remaining unbalancing value of transmission shaft and power takeoff output shaft, unidirectional acceleration transducer is arranged in power taking
On device；
Second step, chooses test speed：
Vehicle is placed in two drives or 4 wheel driven rotating hub, or on smooth pitch and straight road surface, vehicle is added by 60km/h is even
Speed measures the vibratory response of unidirectional acceleration transducer, after the speed conduct for choosing vibration amplitude and phase stabilization to 140km/h
Continuous test speed；
3rd step, tests the vibratory response of power train original state：
Vehicle is set to measure the vibratory response of unidirectional acceleration transducer, test n times, record is each time in selected vehicle speed cruise
Test obtained vibration amplitude and phase；
4th step, vibratory response of the test power train after test mass is increased：
Increase test mass on transmission shaft, vehicle is measured the vibratory response of unidirectional acceleration transducer in selected vehicle speed cruise,
N times are tested, record the vibration amplitude tested each time and phase；
5th step, test power train overturn the vibratory response after 180 ° in transmission shaft：
（5a）Remove test mass；
（5b）When testing the remaining unbalancing value of transmission shaft and drive axle input shaft, transmission shaft and drive axle input shaft are pulled down
Connection bolt, be bolted after transmission shaft is overturn 180 ° with the input shaft of drive axle with being connected；
When testing the remaining unbalancing value of transmission shaft and transmission output shaft, the company of transmission shaft and transmission output shaft is pulled down
Connecting bolt, is bolted with being connected after transmission shaft is overturn 180 ° with transmission output shaft；
When testing the remaining unbalancing value of transmission shaft and power takeoff output shaft, the company of transmission shaft and power takeoff output shaft is pulled down
Connecting bolt, is bolted with being connected after transmission shaft is overturn 180 ° with power takeoff output shaft；
（5c）Vehicle is set to measure the vibratory response of unidirectional acceleration transducer, test n times, record is every in selected vehicle speed cruise
The vibration amplitude and phase once tested；
6th step, calculates transmission shaft and drive axle input shaft, or transmission output shaft, or the residue of power takeoff output shaft moves injustice
Weigh：
Based on the data measured by the 3rd step to the 5th step, transmission shaft and drive axle are calculated using influence coefficient method
Input shaft, or transmission output shaft, or the remaining unbalancing value of power takeoff output shaft.
2. the separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic according to claim 1, its feature exist
In：When vehicle is being tested on smooth pitch and straight road surface, the requirement of road pavement is as follows：
（1）Road surface drying is without ponding；
（2）Road surface is without accumulated snow, dust, sandstone and other fragments being scattered.
3. the separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic according to claim 1 or 2, its feature
It is：During measurement, wind speed is no more than 5m/s.
4. the separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic according to claim 1 or 2, its feature
It is：In the first step,
When testing the remaining unbalancing value of transmission shaft and drive axle input shaft, unidirectional acceleration transducer is disposed adjacent to
The bearing hole of drive axle input shaft is nearby within 1cm；
When testing the remaining unbalancing value of transmission shaft and transmission output shaft, unidirectional acceleration transducer is disposed adjacent to
The bearing hole of transmission output shaft is nearby within 1cm；
When testing the remaining unbalancing value of transmission shaft and power takeoff output shaft, unidirectional acceleration transducer is disposed adjacent to
The bearing hole of power takeoff output shaft is nearby within 1cm.
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| CN201610529355.9A CN106124126B (en) | 2016-07-07 | 2016-07-07 | The separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic |
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| CN201610529355.9A CN106124126B (en) | 2016-07-07 | 2016-07-07 | The separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic |
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| CN106124126B true CN106124126B (en) | 2018-05-01 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801550A (en) * | 2017-04-26 | 2018-11-13 | 江铃汽车股份有限公司 | A kind of equivalent uneven test method of automotive transmission |
| CN106872105A (en) * | 2017-04-26 | 2017-06-20 | 重庆长安汽车股份有限公司 | Whole vehicle state underdrive system multiaspect residue unbalance dynamic method of testing |
| CN107063572B (en) * | 2017-04-26 | 2020-05-08 | 重庆长安汽车股份有限公司 | Least square method-based dynamic unbalance testing method for transmission system |
| CN108760029A (en) * | 2018-03-16 | 2018-11-06 | 江铃汽车股份有限公司 | Interior noise sensitivity test method caused by transmission system imbalance |
| CN112683529B (en) * | 2020-12-04 | 2023-03-31 | 东风汽车股份有限公司 | Automobile transmission shaft bending endurance test device and method thereof |
| CN114112192B (en) * | 2021-11-26 | 2023-05-02 | 中国汽车工程研究院股份有限公司 | Fan residual unbalance test analysis method based on transfer function |
| CN114429000B (en) * | 2022-04-06 | 2022-07-08 | 江铃汽车股份有限公司 | Method, system and equipment for predicting dynamic unbalance finished automobile response of transmission system |
| CN114813116B (en) * | 2022-04-07 | 2024-06-11 | 中国第一汽车股份有限公司 | Dynamic balance sensitivity test analysis method for passenger car transmission system |
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| CN102494846A (en) * | 2011-11-28 | 2012-06-13 | 马杰 | Single-side dynamic balance tool |
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2016
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| JPS54150183A (en) * | 1978-05-17 | 1979-11-26 | Hitachi Ltd | Unbalance position evaluating system of revolving machines |
| JPS5583829A (en) * | 1978-12-21 | 1980-06-24 | Hitachi Ltd | Unbalance correction method of rotary material and its unit |
| CN1573160A (en) * | 2003-05-15 | 2005-02-02 | 达纳公司 | System and method for balancing a driveline system |
| CN201716153U (en) * | 2010-05-10 | 2011-01-19 | 柳州市恒力传动轴有限责任公司 | Clamp for testing dynamic balance of transmission shaft |
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| Title |
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| 试重组迁移矩阵及现场混合动平衡方法;廖与禾等;《西安交通大学学报》;20081130;第42卷(第11期);全文 * |
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| CN106124126A (en) | 2016-11-16 |
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