CN108760207A - A kind of device and method for evaluating reliability of evaluation car wheel structure reliability - Google Patents
A kind of device and method for evaluating reliability of evaluation car wheel structure reliability Download PDFInfo
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- CN108760207A CN108760207A CN201810718384.9A CN201810718384A CN108760207A CN 108760207 A CN108760207 A CN 108760207A CN 201810718384 A CN201810718384 A CN 201810718384A CN 108760207 A CN108760207 A CN 108760207A
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of devices of evaluation car wheel structure reliability, supporting mechanism, sensor including shaking platform, for installing wheel and control unit, wheel is mounted on supporting mechanism, supporting mechanism is mounted on shaking platform, sensor is mounted on wheel and the junction of wheel and supporting mechanism, moving platform are electrically connected with control unit with sensor.Supporting mechanism includes bottom plate, support base, axis fixture, and support base is mounted on bottom plate, and bottom plate is mounted on shaking platform, and axis fixture is connected in support base.One end far from bottom plate is equipped with the groove I for installing axle on wheel in support base, and corresponding axis fixture is equipped with the groove II for clamping axle, and groove II coordinates fixed clamping axle with groove I up and down.The invention discloses a kind of methods of evaluation car wheel structure reliability, longitudinally, laterally, on vertical three directions are carrying out simulation long-life test, impact test and functional random vibration test.
Description
Technical field
The invention belongs to rail traffic vehicles technical fields, and in particular to it is a kind of evaluation car wheel structure reliability device and
Method for evaluating reliability.
Background technology
With the fast development of rail traffic, vibration and noise pollution that train generates in the process of running have become influence
The outstanding problem of urban environment.Rail transit noise is mainly made of wheel-rail noise, tractive squeal and aerodynamic noise, wherein
Wheel-rail noise accounts for major part, and to reduce wheel-rail noise, wheel must have vibration and noise reducing measure, and vibration damping is arranged on wheel and drops
The measure of making an uproar has become rigid requirement.
Current main low-noise vehicle wheel type has knockdown elastic wheel, laying damping member (such as damping ring, shielding
Or damping sheet, dynamic vibration absorber) damping wheel two major classes.Compared with conventional solid wheel, due to low-noise vehicle wheel be by
Metallic wheel ontology lays or is composed with damping member (or rubber parts), either in wheel design stage or material object
During military service, its reliability of structure should be considered first, otherwise in vehicle operation, since the irregularity of track draws
The vibration risen, is repeated several times caused by rail joint, foreign matter etc. or moment impact, these are likely to cause on low-noise vehicle wheel
The damping member of laying (be such as bonded, be embedded), the bolt for playing fixed function loosen, fall or be broken, and directly affect wheel and subtract
The safety of noise reduction of shaking and vehicle.
In order to verify vibration and impact reliability, current evaluation method all just for damping member product itself, such as hinders
The developments such as Buddhist nun's ring, dynamic vibration absorber are evaluated, and are verified whether to occur loosening, are fallen off or be broken, but when damping member is laid
After wheel ontology, vibration mode, characteristic of damping member etc. are changed, secondly the intrinsic frequency and low noise of damping member
The intrinsic frequency of sound finished wheel is entirely different, and there may be vibration effects between damping piece and wheel ontology again, so needing
A kind of device and method that the reliability for low-noise vehicle wheel finished product is evaluated are designed, by vibration with impact to low noise
The reliability of sound wheel finished product is evaluated.
Invention content
For the deficiencies in the prior art, the purpose of the present invention is to provide a kind of evaluation car wheel structure reliabilities
Device and the method that car wheel structure reliability is evaluated based on the device.
To achieve the above object, the technical scheme is that：A kind of device of evaluation car wheel structure reliability, including shake
Moving platform, the supporting mechanism for installing wheel, sensor and control unit, the wheel are mounted on the supporting mechanism,
The supporting mechanism is mounted on the shaking platform, and the sensor is mounted on the wheel and the wheel and the branch
The junction of support mechanism, the moving platform are electrically connected with described control unit with the sensor.
Further, the supporting mechanism includes bottom plate, support base, axis fixture, and the support base is mounted on institute
It states on bottom plate, the bottom plate is mounted on the shaking platform, and the axis fixture is connected in the support base.
Further, the wheel is mounted on axle, and one end far from the bottom plate, which is equipped with, in the support base uses
In the groove I for installing the axle, the corresponding axis fixture is equipped with the groove II for axle described in clamping, described recessed
Slot II coordinates axle described in fixed clamping with the groove I up and down.
Further, the both sides of groove I described in the support base upper edge are equipped with mounting hole I, the axis fixture upper edge
The both sides of the groove II are equipped with mounting hole II, and the axis fixture passes through the mounting hole I and mounting hole II by fastener
It is connected in the support base.
Further, the axis fixture is equipped with keyway, and the axle is equipped with keyseat, and the axle passes through key and institute
It states keyway and the keyseat is connected on the axis fixture.
Further, the sensor includes first sensor and second sensor, and the first sensor is arranged in institute
It states and the vibration characteristics of the wheel is monitored on the surface of wheel, the second sensor is arranged on the axis fixture
The input stimulus of system is monitored.
Further, described control unit include vibration controller and the drive signal that generates vibration controller carry out by
The power amplifier of grade amplification, the drive signal through power amplifier amplification drives the shaking platform to work, while institute
It states second sensor and the corresponding signal detected is fed back into the vibration controller, by the signal fed back to and the drive set
The driving of the dynamic shaking platform work is general to be compared, corrects, and show that new driving spectrum drives the shaking platform work.
Further, the unit processed further includes data processor, the first sensor, second sensor and described is shaken
Dynamic controller is connected by data processor described in conducting wire.
The invention further relates to a kind of methods of evaluation car wheel structure reliability, based on above-mentioned evaluation car wheel structure reliability
The method that device carries out evaluation car wheel structure reliability includes the following steps：
Axle is fitted on wheel by step 1. first, in accordance with the press-loading process condition of actual wheel and axle, then by vehicle
Wheel is erect and is fixed on supporting mechanism, and then supporting mechanism is mounted on shaking platform；
After step 2. installs wheel and supporting mechanism, arrangement measuring point and control point are required according to technology, in axle
Control point is arranged with supporting mechanism junction, and second sensor is set at control point, measuring point is arranged on the surface of wheel,
First sensor is set at measuring point；It connects at vibration controller, power amplifier, first sensor, second sensor and data
Device is managed, and does final inspection, subsequent evaluation experiment is carried out after errorless；
Step 3. longitudinally, laterally, on vertical three directions is carrying out simulation long-life test, impact test and functionality
Random vibration test, test sequence are：Each direction first carries out simulation long-life test and carries out impact test again finally carrying out work(
Can property random vibration test, longitudinally, laterally, after vertical three directions complete three experiments in each direction, dismantle and bottom plate and shake
Connector between moving platform, turns bottom plate and changes next direction and continue to test；
After step 4. completes simulation long-life test, impact test and functional random vibration test, to the resistance on wheel
Play connection on Buddhist nun's ring, the mechanical structure of wheel and wheel, the component of fastening effect is detected and detects a flaw, evaluate car wheel structure
Reliability.
Further, the experimental condition of the simulation long-life test is：It carries out controlling ASD values when the experiment in vertical direction
For 124.90 (m/s2)2/ Hz, root-mean-square value are 144 (m/s2), testing time 5h, when experiment for carrying out horizontal direction controls
ASD values are 100.20 (m/s2)2/ Hz, root-mean-square value are 129 (m/s2), testing time 5h, when carrying out the experiment of longitudinal direction
Control ASD values are 25.02 (m/s2)2/ Hz, root-mean-square value are 64.3 (m/s2), testing time 5h；The examination of the impact test
The condition of testing is：Carry out vertical, transverse direction, longitudinal direction experiment when surge waveform be half-sine wave, peak accelerator 1000A
(m/s2), the duration be 6D (ms), number of shocks be it is positive and negative it is each three times；After the vibration and shock testing in each direction,
Functional random vibration test is carried out, the experimental condition of the functionality random vibration test is：Carry out the experiment in vertical direction
When control ASD values be 8.74 (m/s2)2/ Hz, root-mean-square value are 38 (m/s2), testing time 10min, carry out horizontal direction
It is 7.00 (m/s that ASD values are controlled when experiment2)2/ Hz, root-mean-square value are 34 (m/s2), testing time 10min, carry out longitudinal direction side
To experiment when control ASD values be 1.75 (m/s2)2/ Hz, root-mean-square value are 17 (m/s2), testing time 10min.
The advantages of using technical solution of the present invention for：
1. two pieces of support bases effect in the present invention primarily serves support and the effect of dead axle, corresponding axis
Fixture coordinates fixed clamping axle with support base up and down, prevents axle from being loosened with impact process in vibration；Bottom plate mainly rises
Whole placement axle connect two aspect effects with support base and shaking platform, and the experiment of some direction is finished on shaking platform
Afterwards, it only need to dismantle bottom plate to connect with shaking platform, turn bottom plate and continue to do the experiment of another direction, without dismantling integrated tooling.
2. the present invention in laboratory conditions as far as possible simulating wheel actual vibration with impact operating mode, wheel is not directly to lie
It is placed on shaking platform, but after filling axis according to practical axle press-loading process condition, vertical be fixed on supporting mechanism of wheel carries out
Evaluation test makes test result closer to actual conditions.
3. the present invention by series vibration and impact test, can effectively to the structural reliability of low-noise vehicle wheel finished product into
Row evaluation, test method have foundation, research technique easily to realize.Device design structure is simple needed for experiment, space is small, it is quick detachable with
It carries, operability height.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments：
Fig. 1 is the structural schematic diagram of the device of present invention evaluation car wheel structure reliability.
Fig. 2 is the structural schematic diagram of supporting mechanism of the present invention.
Fig. 3 is the structural schematic diagram of axis fixture of the present invention.
Label in above-mentioned figure is respectively：1, shaking platform；2, wheel；21, axle；211, keyseat；22, key；23, it damps
Ring；3, supporting mechanism；31, bottom plate；32, support base；321, groove I；322, mounting hole I；323, reinforcing plate；324, first
Plate；325, the second plate；33, axis fixture；331, groove II；332, mounting hole II；333, keyway；4, sensor；41, it first passes
Sensor；42, second sensor；5, control unit；51, vibration controller；52, power amplifier；53, data processor.
Specific implementation mode
In the present invention, it is to be understood that term " length ", " width ", "upper", "lower", "front", "rear", " left side ",
" right side ", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction "
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of the description present invention and
Simplify description, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration
And operation, therefore be not considered as limiting the invention.
As shown in Figure 1, Figure 2, Figure 3 shows, it is a kind of evaluation car wheel structure reliability device, including shaking platform 1, for installing
Supporting mechanism 3, sensor 4 and the control unit 5 of wheel 2, wheel 2 are mounted on supporting mechanism 3, and supporting mechanism 3, which is mounted on, to shake
On moving platform 1, sensor 4 is mounted on wheel 2 and the junction of wheel 2 and supporting mechanism 3, moving platform 1 and sensor 4 with
Control unit 5 is electrically connected.Supporting mechanism 3 includes bottom plate 31, support base 32, axis fixture 33, and support base 32 is mounted on bottom
On plate 31, bottom plate 31 is mounted on shaking platform 1, and axis fixture 33 is connected in support base 32.
Wheel 2 is mounted on axle 21, and one end far from bottom plate 31 in support base 32 is equipped with for installing axle 21
Groove I 321, corresponding axis fixture 33 are equipped with the groove II 331 for clamping axle 21, groove II 331 and groove I 321
Clamping axle 21 is fixed in cooperation up and down.The both sides of 32 upper edge groove I 321 of support base are equipped with mounting hole I 322, axis fixture 33
The both sides of upper edge groove II 331 are equipped with mounting hole II 332, and axis fixture 33 passes through fasteners through mounting holes I 322 and mounting hole
II 332 are connected in support base 32.Two pieces of support bases effect in the present invention primarily serves support and dead axle 21
Effect, the fixed clamping axle 21 of 33 fixture of corresponding axis and about 32 support base cooperation, prevent axle 21 in vibration and
It is loosened in impact process；Bottom plate 31 mainly plays whole placement axle 21 and connect two aspects with support base 32 and shaking platform 1
Effect after finishing the experiment of some direction on shaking platform 1, only need to dismantle bottom plate 31 and be connect with shaking platform 1, turn bottom plate 31
Continue to do the experiment of another direction, without dismantling integrated tooling.
Above-mentioned axis fixture 33 is equipped with keyway 333, and axle 21 is equipped with keyseat 211, and axle 21 passes through key 22 and keyway
333 and keyseat 211 be connected on axis fixture 33；Preferably, key 22 is woodruff key.Support base 32 is L-shaped structure, support
Pedestal 32 includes the first plate 324 and the second plate 325, and the second plate 325 is vertically connected on the first plate 324, and the setting of groove I 321 exists
The top of second plate 325, the first plate 324 are mounted on by fastener on bottom plate 31, and support base 32 is equipped with reinforcing plate 323,
Reinforcing plate 323 is connected on one side on the first plate 324, and the another side of reinforcing plate 323 is connected on the second plate 325.
The sensor 4 includes first sensor 41 and second sensor 42, and the table in wheel 2 is arranged in first sensor 41
The vibration characteristics of wheel 2 is monitored on face, the input stimulus to system on axis fixture 33 is arranged in second sensor 42
It is monitored.
Control unit 5 includes vibration controller 51, is amplified the drive signal that vibration controller 51 generates step by step
Power amplifier 52 and data processor 53, the drive signal driving shaking platform 1 amplified through power amplifier 52 work, simultaneously
The corresponding signal detected is fed back to vibration controller 51 by second sensor 42, by the signal fed back to and the driving set
The driving of the work of shaking platform 1 is general to be compared, corrects, and show that new driving spectrum driving shaking platform 1 works.Above-mentioned first passes
Sensor 41, second sensor 42 and vibration controller 51 are connected by conducting wire data processor 53.
The power amplifier 52 that the drive signal that vibration controller 51 generates is amplified step by step, through power amplifier 52
The drive signal driving shaking platform 1 of amplification works, while the corresponding signal detected is fed back to vibration by second sensor 42
Controller 51 is compared driving that the signal fed back to works with the driving shaking platform 1 set is general, is corrected, obtained
New driving spectrum driving shaking platform 1 works, and carries out repeatedly, the general precision for reaching and meeting controlling test of driving is made to want
It asks, control point selection is at axis fixture and testpieces attachment screw, and sensor is rigidly connected with fixed point, the vibration at control point
Not less than lower control limit, control mode is average control.It is preferred that sensor Instant cement and epoxy resin glue.To avoid
Sensor, connecting wire loosen and lead to dropout during experiment, thus carry out self-test to vibrational system before the test, with
The integrity for examining the measuring system being made of sensor, vibrating controller, power amplifier and data processor to connect.
The device that the present invention evaluates car wheel structure reliability passes through simulation analysis and calculating before making implementation, meets experiment
Rigidity requirement；And the device design structure is simple, space is small, quick detachable high with carrying, operability.
The present invention in laboratory conditions as far as possible simulating wheel actual vibration with impact operating mode, wheel 2 is not directly to lie
It is placed on shaking platform 1, but after filling axis according to practical axle press-loading process condition, wheel 2 is vertical, and to be fixed on supporting mechanism 3 enterprising
Row evaluation test.
The method that device based on above-mentioned evaluation car wheel structure reliability carries out evaluation car wheel structure reliability includes as follows
Step：
Axle 21 is fitted on wheel 2 by step 1. first, in accordance with the press-loading process condition of actual wheel 2 and axle 21,
The setting of wheel 2 is fixed on supporting mechanism 3 again, then supporting mechanism 3 is mounted on shaking platform 1；Support base 32 is solid
After being scheduled on bottom plate 31, the wheel 2 being pressed is placed in support base 32, axle is blocked with the cooperation fixation of axis fixture 33
21, it finishes rear wheel 2 and is integrally placed on high-power shaking platform 1 with tooling, damping ring 23 cannot be in wheel ontology when installing
It is stuck.
After step 2. installs wheel 2 and supporting mechanism 3, arrangement measuring point and control point are required according to technology, in vehicle
Axis 21 arranges control point with 3 junction of supporting mechanism, and second sensor 42 is arranged at control point, for swashing to the input of system
It encourages and is monitored, measuring point is arranged on the surface of wheel 2, first sensor 41 is set at measuring point, for the vibration to wheel 2
Characteristic is monitored；It connects at vibration controller 51, power amplifier 52, first sensor 41, second sensor 42 and data
Device 53 is managed, and does final inspection, subsequent evaluation experiment is carried out after errorless.
Step 3. longitudinally, laterally, on vertical three directions is carrying out simulation long-life test, impact test and functionality
Random vibration test, test sequence are：Each direction first carries out simulation long-life test and carries out impact test again finally carrying out work(
Can property random vibration test, longitudinally, laterally, vertical three directions each direction complete three experiment after, dismounting bottom plate 31 with
Connector between shaking platform 1, turns bottom plate 31 and changes next direction and continue to test, the examination until completing three directions
It tests.
The test method for simulating long-life test is carried out by three classes condition in IEC61373-2010 clauses 9, the weight of wheel 2
M=325kg is measured, determines f2=200Hz；Simulation long-life test experimental condition be：It is controlled when the experiment for carrying out vertical direction
ASD values are 124.90 (m/s2)2/ Hz, root-mean-square value are 144 (m/s2), testing time 5h, when carrying out the experiment of horizontal direction
Control ASD values are 100.20 (m/s2)2/ Hz, root-mean-square value are 129 (m/s2), testing time 5h, carry out the examination of longitudinal direction
It is 25.02 (m/s that ASD values are controlled when testing2)2/ Hz, root-mean-square value are 64.3 (m/s2), testing time 5h.
The test method of impact test is pressed three classes condition in IEC61373-2010 clauses 10 and is carried out, and experiment is applied to the whole series
The experimental condition of wheel 2, impact test is：Carry out vertical, transverse direction, longitudinal direction experiment when surge waveform be half-sine wave,
Peak accelerator is 1000A (m/s2), the duration be 6D (ms), number of shocks be it is positive and negative it is each three times；The vibration in each direction
After impact test, functional random vibration test is carried out.
The test method of functional random vibration test is pressed three classes condition in IEC61373-2010 clauses 8 and is carried out, wheel weight
M=325kg is measured, determines f2=200Hz；The experimental condition of functional random vibration test is：When carrying out the experiment in vertical direction
Control ASD values are 8.74 (m/s2)2/ Hz, root-mean-square value are 38 (m/s2), testing time 10min, carry out the examination of horizontal direction
It is 7.00 (m/s that ASD values are controlled when testing2)2/ Hz, root-mean-square value are 34 (m/s2), testing time 10min, carry out longitudinal direction
Experiment when control ASD values be 1.75 (m/s2)2/ Hz, root-mean-square value are 17 (m/s2), testing time 10min
After step 4. completes simulation long-life test, impact test and functional random vibration test, to the resistance on wheel 2
Connection is played on Buddhist nun's ring 23, the mechanical structure of wheel 2 and wheel 2, the component of fastening effect is detected and detects a flaw, evaluation wheel knot
The reliability of structure.Specifically evaluation method is：It after all experiments are completed, is required if having reached following, it is believed that logical
Cross reliability test of the present invention：1. low-noise vehicle wheel overall appearance and mechanical structure do not change, flawless；2. damping structure
Part must not have dislocation, loosens, damage；3. playing connection on wheel, the component of fastening must not loosen.
Simulation long-life test is used for verifying the integrity of low-noise vehicle wheel mechanical structure under the conditions of simulated environment；Impact
Experiment is used for simulating low-noise vehicle wheel impact resistance in the process of running；Functional random vibration test is used for verifying low noise
Wheel integrity under the possible environmental condition of vehicle.
The present invention can effectively carry out the structural reliability of low-noise vehicle wheel finished product by series vibration and impact test
Evaluation, test method have foundation, research technique easily to realize.Device design structure is simple needed for experiment, space is small, it is quick detachable with remove
Fortune, operability are high.
The present invention is exemplarily described above in association with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as use technical solution of the present invention progress various unsubstantialities improvement, or it is not improved by the present invention
Design and technical solution directly apply to other occasions, within protection scope of the present invention.
Claims (10)
1. a kind of device of evaluation car wheel structure reliability, it is characterised in that：Including shaking platform (1), for installing wheel (2)
Supporting mechanism (3), sensor (4) and control unit (5), the wheel (2) be mounted on the supporting mechanism (3) on, it is described
Supporting mechanism (3) is mounted on the shaking platform (1), and the sensor (4) is mounted on the wheel (2) and the wheel
(2) with the junction of the supporting mechanism (3), the shaking platform (1) and the sensor (4) are and described control unit
(5) it is electrically connected.
2. a kind of device of evaluation car wheel structure reliability as described in claim 1, it is characterised in that：The supporting mechanism
(3) include bottom plate (31), support base (32), axis fixture (33), the support base (32) is mounted on the bottom plate (31)
On, the bottom plate (31) is mounted on the shaking platform (1), and the axis fixture (33) is connected to the support base (32)
On.
3. a kind of device of evaluation car wheel structure reliability as claimed in claim 2, it is characterised in that：Wheel (2) peace
On axle (21), one end far from the bottom plate (31) is equipped with for installing the axle on the support base (32)
(21) groove I (321), the corresponding axis fixture (33) are equipped with the groove II for axle (21) described in clamping
(331), the groove II (331) coordinates axle (21) described in fixed clamping up and down with the groove I (321).
4. a kind of device of evaluation car wheel structure reliability as claimed in claim 3, it is characterised in that：The support base
(32) both sides of groove I described in upper edge (321) are equipped with mounting hole I (322), groove II described in axis fixture (33) upper edge
(331) both sides be equipped with mounting hole II (332), the axis fixture (33) by fastener pass through the mounting hole I (322) and
Mounting hole II (332) is connected in the support base (32).
5. a kind of device of evaluation car wheel structure reliability as described in claim 2~4 any one, it is characterised in that：Institute
It states axis fixture (33) and is equipped with keyway (333), the axle (21) is equipped with keyseat (211), and the axle (21) passes through key
(22) it is connected on the axis fixture (33) with the keyway (333) and the keyseat (211).
6. a kind of device of evaluation car wheel structure reliability as described in claim 2~4 any one, it is characterised in that：Institute
It includes first sensor (41) and second sensor (42) to state sensor (4), and the first sensor (41) is arranged in the vehicle
It takes turns and the vibration characteristics of the wheel (2) is monitored on the surface of (2), the second sensor (42) is arranged in the axis
Fixture is monitored the input stimulus of system on (33).
7. a kind of device of evaluation car wheel structure reliability as claimed in claim 6, it is characterised in that：Described control unit
(5) power amplifier for including vibration controller (51) and being amplified the drive signal that vibration controller (51) generates step by step
(52), the drive signal through the power amplifier (52) amplification drives the shaking platform (1) to work, while described second passes
The corresponding signal detected is fed back to the vibration controller (51) by sensor (42), by the signal fed back to and the drive set
The driving of dynamic shaking platform (1) work is general to be compared, corrects, and show that new driving spectrum drives the shaking platform (1)
Work.
8. a kind of device of evaluation car wheel structure reliability as claimed in claim 7, it is characterised in that：The unit processed (5)
Further include data processor (53), the first sensor (41), second sensor (42) and the vibration controller (51) are equal
It is connected by data processor described in conducting wire (53).
9. a kind of method of evaluation car wheel structure reliability, it is characterised in that：Described in claim 1~8 any one
The method that the device of evaluation car wheel structure reliability carries out evaluation car wheel structure reliability includes the following steps：
Axle (21) is fitted in wheel (2) by step 1. first, in accordance with the press-loading process condition of actual wheel (2) and axle (21)
On, then wheel (2) is erect and is fixed on supporting mechanism (3), then supporting mechanism (3) is mounted on shaking platform (1)；
After step 2. installs wheel (2) and supporting mechanism (3), arrangement measuring point and control point are required according to technology, in vehicle
Axis (21) arranges control point with supporting mechanism (3) junction, second sensor (42) is arranged at control point, in wheel (2)
Measuring point is arranged on surface, and first sensor (41) is set at measuring point；Connect vibration controller (51), power amplifier (52),
First sensor (41), second sensor (42) and data processor (53), and final inspection is done, carry out subsequent evaluation after errorless
Experiment；
Step 3. is longitudinally, laterally, on vertical three directions to carry out simulation long-life test, impact test and functionality random
Vibration test, test sequence are：Each direction first carries out simulation long-life test and carries out impact test again finally carrying out functionality
Random vibration test, longitudinally, laterally, after vertical three directions complete three experiments in each direction, dismounting bottom plate and shakes at (31)
Connector between moving platform (1), turns bottom plate (31) and changes next direction and continue to test；
After step 4. completes simulation long-life test, impact test and functional random vibration test, to the damping on wheel (2)
Connection is played on ring (23), the mechanical structure of wheel (2) and wheel (2), the component of fastening effect is detected and detects a flaw, evaluation vehicle
The reliability of wheel construction.
10. a kind of device of evaluation car wheel structure reliability as claimed in claim 8, it is characterised in that：The simulation is long-lived
Ordering the experimental condition tested is：Control ASD values are 124.90 (m/s when carrying out the experiment in vertical direction2)2/ Hz, root-mean-square value are
144(m/s2), testing time 5h, control ASD values are 100.20 (m/s when carrying out the experiment of horizontal direction2)2/ Hz, root mean square
Value is 129 (m/s2), testing time 5h, control ASD values are 25.02 (m/s when carrying out the experiment of longitudinal direction2)2It is/Hz, square
Root is 64.3 (m/s2), testing time 5h；
The experimental condition of the impact test is：Carry out vertical, transverse direction, longitudinal direction experiment when surge waveform be semisinusoidal
Wave, peak accelerator are 1000A (m/s2), the duration be 6D (ms), number of shocks be it is positive and negative it is each three times；
After the vibration and shock testing in each direction, functional random vibration test, the functionality random vibration are carried out
The experimental condition of experiment is：Control ASD values are 8.74 (m/s when carrying out the experiment in vertical direction2)2/ Hz, root-mean-square value are 38 (m/
s2), testing time 10min, control ASD values are 7.00 (m/s when carrying out the experiment of horizontal direction2)2/ Hz, root-mean-square value 34
(m/s2), testing time 10min, control ASD values are 1.75 (m/s when carrying out the experiment of longitudinal direction2)2/ Hz, root-mean-square value
For 17 (m/s2), testing time 10min.
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| CN201810718384.9A CN108760207B (en) | 2018-07-03 | 2018-07-03 | Device for evaluating reliability of wheel structure and reliability evaluation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810718384.9A CN108760207B (en) | 2018-07-03 | 2018-07-03 | Device for evaluating reliability of wheel structure and reliability evaluation method |
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| CN108760207B CN108760207B (en) | 2021-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112697378A (en) * | 2020-12-29 | 2021-04-23 | 东风汽车集团有限公司 | Virtual rack model for impact test of aluminum alloy rim |
Citations (9)
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| CN108760207B (en) | 2021-04-02 |
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