CN107870095A - Suspension shock-absorber performance comparision device and comparative approach - Google Patents
Suspension shock-absorber performance comparision device and comparative approach Download PDFInfo
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- CN107870095A CN107870095A CN201711313854.5A CN201711313854A CN107870095A CN 107870095 A CN107870095 A CN 107870095A CN 201711313854 A CN201711313854 A CN 201711313854A CN 107870095 A CN107870095 A CN 107870095A
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 143
- 239000000725 suspension Substances 0.000 title claims abstract description 31
- 230000000052 comparative effect Effects 0.000 title abstract description 8
- 238000013459 approach Methods 0.000 title abstract description 7
- 230000035939 shock Effects 0.000 claims abstract description 115
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 238000013016 damping Methods 0.000 claims description 42
- 238000006073 displacement reaction Methods 0.000 claims description 33
- 238000009434 installation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 230000005284 excitation Effects 0.000 abstract description 19
- 238000002474 experimental method Methods 0.000 abstract description 9
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000011056 performance test Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
Abstract
Suspension shock-absorber performance comparision device and comparative approach, the present invention proposes that one kind can be under same excitation operating mode, while two shock absorber performances of measurement experiment and compares the comparison means and comparative approach of its performance difference.The present invention is under same excitation operating mode, two external characteristics for being picked up shock absorber are tested simultaneously, realize in an experiment circulation while measure two suspension shock-absorber performances coaxial or with bridge, or test experiments develop shock absorber and to marking shock absorber performance simultaneously, are easy to the difference of two shock absorber performances of com-parison and analysis.The present invention eliminates excitation error, the uncertain factor such as temperature error adversely affects to caused by shock absorber performance test result, the perfect means of testing of shock absorber performance.
Description
Technical field
The present invention relates to automotive suspension kinetic test field, and in particular to a kind of Car Suspension's Absorber Performance compares dress
Put and comparative approach.
Background technology
Usual riding vehicle has four sets of suspensions, is distributed in automobile all around, i.e. two sets of propons, two sets of back axle.From
Vehicle ride comfort and control stability angle are set out, and are typically required the performance of four sets of suspensions and to be matched rationally, it is particularly coaxial or
With the suspension of bridge.Therefore, it is coaxial or also want Proper Match with the suspension shock-absorber performance of bridge, it is general to require that both performances try one's best one
Cause.Shock absorber is the important assembly of automobile suspension system, due to the working attributes of its fluid damping, therefore shock absorber of automobile suspension
It is hydraulic damping device, so its performance is related to its internal hydraulic damping structure, the external drive being also subject to it has
Close.
Automotive suspension is generally detected or tested at present using the method for the mechanical excitation for imitating regular road surface and random road surface
The performance of shock absorber, and producing the mechanism of excitation and system has the crank connecting rod sliding block mechanism based on mechanical mechanism, based on fluid
The hydraulic shock excitation system of mechanics principle, the electromagnetic exciting system based on electromagnetic induction principle etc..In practice, although all kinds of excitation systems
The working mechanism of system is not quite similar, but the quality for producing excitation all has certain difference, thus shock absorber test experience result
Inevitably error be present, the error is the caused excitation error of the problem of uniformity by encouraging and stability are present.Mesh
It is preceding generally using the method for sequential experiment, i.e., coaxial or suspension shock-absorber with bridge sequentially test experience successively,
So just generate the excitation uncertainty such as error and temperature error.So, excitation error certainly will reduce by two coaxial or same bridges
The comparativity of suspension shock-absorber performance；For inverse-direction-exploitation shock absorber, sequentially test experience shock absorber successively, swashs
Exploitation shock absorber and the comparativity to marking shock absorber performance certainly will also be reduced by encouraging error.
To sum up, suspension shock-absorber performance of the test experiments two coaxially or with bridge, or together simultaneously under same excitation operating mode
When test experiments exploitation shock absorber and to marking shock absorber performance, adversely affected caused by excitation error will be eliminated and effectively improve two
The comparativity of Zhi Shoujian shock absorber performances.
The content of the invention
The invention proposes a kind of suspension shock-absorber performance comparision device and comparative approach, proposes that one kind can swash same
Encourage under operating mode, while two shock absorber performances of measurement experiment and compare the comparison means and comparative approach of its performance difference.This hair
Bright is under same excitation operating mode, while tests two external characteristics for being picked up shock absorber, that is, realizes same in an experiment circulation
When measure two coaxial or suspension shock-absorber performances with bridge, or test experiments exploitation shock absorber and to marking shock absorber simultaneously
Energy, it is easy to the difference of two shock absorber performances of com-parison and analysis.The uncertain factors such as excitation error, temperature error are eliminated to shock absorber
Adverse effect caused by performance test result.
In order to solve the above problems, technical scheme that the invention uses for：Suspension shock-absorber performance comparision device, its
It is characterised by：Include exciting bank and test system, up-and-down movement mechanism is provided with exciting bank；Set in test system
It is equipped with pull pressure sensor, comparator assembly and displacement transducer；Up-and-down movement mechanism in described exciting bank is
Sliding block assembly, sliding block assembly connect one end of two shock absorbers, and the other end of two shock absorbers is connected to a ratio simultaneously
On both ends compared with device assembly, the sensing for being used for detecting resistance of shock absorber force value is provided between each shock absorber and comparator assembly
Device, displacement transducer are arranged between up-and-down movement mechanism and bottom plate, for detecting the upper and lower of up-and-down movement mechanism
Square move distance.
Include crank in described exciting bank, the connecting rod being connected with crank, the globular hinge being connected with connecting rod, sliding block
Assembly is connected with globular hinge, so as to the up-and-down movement by the convert rotational motion of crank for sliding block assembly.
Described exciting bank and test system is arranged in load-bearing frame, load-bearing frame include bottom plate, both sides it is vertical
Post, the sill for being arranged on up-and-down movement mechanism bottom, in being arranged between up-and-down movement mechanism and shock absorber
Crossbeam, and the entablature being arranged at the top of comparator assembly.
The both ends of lever connect a shock absorber respectively in described comparator assembly, lever central and torque sensor
One end is fixed together, and the other end and the torque frame of torque sensor are fixed together；Torque frame is to compare
The installation foundation part of device assembly, its upper end pass through the load-bearing frame structure outside adjusting bolt connection.
A kind of method that suspension shock-absorber performance comparision device described in carries out shock absorber performance comparision, its feature exist
In：
1）, by two shock absorbers be arranged on a set of exciting bank in, bottom by up-and-down movement mechanism drive do jointly it is past
Multiple motion, displacement sensor up-and-down movement mechanism above-below direction moving displacement, draw auto shock absorber relative to
The relative motion displacement of piston rod and speed of related movement；
2）, two shock absorber tops the damping force value of two shock absorbers is measured by pull pressure sensor respectively, with reference to step 1）
In the information that detects, form the respective model center building of two tested shock absorbers and speed characteristics；
3）, two pull pressure sensor be connected to the lever both ends of same comparator assembly, its intermediate part connection moment of torsion
Sensor, torque difference is drawn by torque sensor, the difference of torque difference=two absorber damping force × from pull pressure sensor
Top to lever central length, so as to obtain the difference of two absorber damping forces；
4）, the comparator assembly that is formed using lever, torque sensor, torque frame measure two tested absorber damping forces
The displacement signal that dynamic antivibration torque and displacement transducer caused by difference are measured, dynamic antivibration power moment of torsion indicator card can be formed
With dynamic antivibration power speed of torque figure；Dynamic antivibration power moment of torsion indicator card illustrates dynamic antivibration power moment of torsion model center building, i.e., at certain
Under one specific incentives operating mode, in the difference of the damping force of diverse location two shock absorbers of point；Explanation is in a vibration reciprocating simultaneously
The difference of two shock absorber vibrational energies in cycle；Dynamic antivibration power speed of torque figure illustrates dynamic antivibration power speed of torque
Characteristic, i.e., the different differences for encouraging the damping force of two shock absorbers 10 under speed.
The beneficial effect of the invention is：
1st, two piston rod user terminals for being picked up shock absorber are arranged on same component, i.e., on the lever 15 of comparator assembly；Two
The lower end that branch is picked up shock absorber is arranged on same component, i.e. the upper end of sliding block assembly 8, it is ensured that two are picked up shock absorber
Installation dimension it is identical, therefore test trip position is identical with scope, eliminates because shock absorber installation dimension is different and examination
Error caused by testing travel position difference.
2nd, shock absorber is driven to move reciprocatingly by crank connecting rod sliding block mechanism, low cost, operational reliability height.
3rd, comparative result can be drawn, easy to use, efficiency high while the external characteristics of two shock absorbers of detection.
Brief description of the drawings
Fig. 1：The invention structural representation.
Fig. 2：Comparator assembly structure schematic diagram.
Embodiment
Suspension shock-absorber performance comparision device, it is characterised in that：Include exciting bank and test system, in exciting bank
Provided with up-and-down movement mechanism；Pull pressure sensor 11, comparator assembly 12 and displacement transducer are provided with test system
6；Up-and-down movement mechanism in described exciting bank is sliding block assembly 8, and sliding block assembly 8 connects the one of two shock absorbers 10
End, the other end of two shock absorbers 10 is connected on the both ends of a comparator assembly 12 simultaneously, in each shock absorber 10
It is provided between comparator assembly 12 and is used to detect the sensor 11 that shock absorber 10 damps force value, displacement transducer 6 is arranged on vertical
Directly between reciprocating mechanism and bottom plate 1, for detecting the upper and lower move distance of up-and-down movement mechanism.
Include crank 3 in described exciting bank, the connecting rod 4 being connected with crank 3, the globular hinge being connected with connecting rod 4
5, sliding block assembly 8 is connected with globular hinge 5, so as to the vertically reciprocating fortune by the convert rotational motion of crank 3 for sliding block assembly 8
It is dynamic.
Described exciting bank and test system is arranged in load-bearing frame, load-bearing frame include bottom plate 1, both sides it is vertical
Post 2, the sill 7 for being arranged on up-and-down movement mechanism bottom, it is arranged between up-and-down movement mechanism and shock absorber 10
Middle cross beam 9, and be arranged on the entablature 13 at the top of comparator assembly 12.
The both ends of lever 15 connect a shock absorber 10, the center of lever 15 and moment of torsion respectively in described comparator assembly 12
One end of sensor 16 is fixed together, and the other end and the torque frame 17 of torque sensor 16 are fixed together；
Torque frame 17 is the installation foundation part of comparator assembly 12, and its upper end connects the load-bearing frame knot of outside by adjusting bolt 14
Structure.
A kind of method that suspension shock-absorber performance comparision device described in carries out shock absorber performance comparision, its feature exist
In：
1st, two shock absorbers 10 are arranged in a set of exciting bank, bottom is done past jointly by the drive of up-and-down movement mechanism
Multiple motion, displacement transducer 6 measure up-and-down movement mechanism above-below direction moving displacement, show that the oil storage cylinder of shock absorber 10 is relative
In the relative motion displacement of piston rod and speed of related movement；
2nd, two tops of shock absorber 10 measure the damping force value of two shock absorbers 10 by pull pressure sensor 11 respectively, with reference to step
The information detected in rapid 1, the respective model center building of the tested shock absorber of formation two and speed characteristics；
3rd, two pull pressure sensor 11 are connected to the both ends of lever 15 of same comparator assembly 12, and the middle part of lever 15 connects
Torque sensor 16 is connect, torque difference is drawn by torque sensor 16, the difference of the damping force of torque difference=two shock absorber 10 × from
The top of pull pressure sensor 11 to the center of lever 15 length, so as to obtain the difference of two damping forces of shock absorber 10；
4th, the comparator assembly 12 formed using lever 15, torque sensor 16, torque frame 17 measures two tested shock absorbers
The displacement signal that dynamic antivibration torque caused by the difference of 10 damping forces and displacement transducer 6 are measured, can form dynamic antivibration
Power moment of torsion indicator card and dynamic antivibration power speed of torque figure；Dynamic antivibration power moment of torsion indicator card illustrates that dynamic antivibration power moment of torsion shows work(
Characteristic, i.e., under a certain specific incentives operating mode, in the difference of the damping force of diverse location two shock absorbers 10 of point；Explanation exists simultaneously
Two shock absorbers 10 absorb the difference of vibrational energy in one vibration reciprocating cycle；Dynamic antivibration power speed of torque figure explanation dynamic
Damping force torque-speed characteristics, i.e., the different differences for encouraging the damping force of two shock absorbers 10 under speed.
When specifically used：
1st, test philosophy
As shown in figure 1, Car Suspension's Absorber Performance comparison means is made up of exciting bank, test system, load-bearing frame.Wherein
Exciting bank is made up of crank 3,4, two globular hinges 5 of connecting rod and sliding block assembly 8.Test system by 1 displacement transducer 6,
Two pull pressure sensor 11 and comparator assembly 12 form.Load-bearing frame is by bottom plate 1, sill 7, middle cross beam 9, entablature 13
Formed with two root posts 2.
Two piston rod user terminals of shock absorber 10 are respectively fixedly connected with installed in two lower ends of pull pressure sensor 11；Two
The lower end of shock absorber 10 is respectively fixedly connected with above the slider guide body of sliding block assembly 8；Two pull pressure sensor 11 are divided
Not Ce Liang two shock absorbers 10 damping force, while two upper ends of pull pressure sensor 11 are fixedly connected installed in comparator assembly
On 12 lever both ends, and the equal length of both sides lever.The difference of the damping force of such two shock absorbers 10 can be to comparator
Assembly 12 produces torque；Torque size is the difference and the lever length of comparator assembly 12 of the damping force of two shock absorbers 10
Product.Because two lower ends of shock absorber 10 are respectively fixedly connected with above the slider guide body of sliding block assembly 8, therefore two
The damping force of shock absorber 10 is that excitation density, phase, frequency are identical caused by under same excitation operating mode effect, so
Eliminating excitation error may be on influence caused by the damping force of two shock absorbers 10.
As shown in Figure 2, comparator assembly 12 is made up of lever 15, torque sensor 16, torque frame 17.The center of lever 15
Together with being connected firmly with one end of torque sensor 16；Together with the other end of torque sensor 16 connects firmly with torque frame 17.This
Sample act on the damping force of two shock absorbers 10 at the both ends of lever 15 and meanwhile can be opposite to the action direction of torque sensor 16 torsion
Square, what final torque sensor 16 measured is that dynamic antivibration power caused by the dynamic difference of the damping force of two shock absorbers 10 is turned round
Square.
Two shock absorbers 10 can be measured respectively by displacement transducer 6 and two measured signals of pull pressure sensor 11
Model center building and speed characteristics；The direction of dynamic antivibration power moment of torsion is surveyed by torque sensor 16 can identify two vibration dampings
Damping force difference direction between device, i.e., if it is clockwise torque that torque sensor 16, which surveys dynamic antivibration power moment of torsion, then left side
The damping force of tested shock absorber is more than the damping force that right side is tested shock absorber, and vice versa.Therefore that branch shock absorber can be judged
Damping force is big, and which absorber damping force is small；Dynamic antivibration power torque signal and displacement sensing are surveyed by torque sensor 16
The measured displacement signal of device 6 can form dynamic antivibration power moment of torsion indicator card and dynamic antivibration power speed of torque figure；Dynamic antivibration power
Moment of torsion indicator card illustrates under a certain specific incentives operating mode, in the difference of the damping force of diverse location two shock absorbers 10 of point；Together
When illustrate that within a vibration reciprocating cycle two shock absorbers 10 absorb the difference of vibrational energy；Dynamic antivibration power speed of torque figure
Illustrate the difference of the damping force of two shock absorbers 10 under different excitation speed.
It is coaxial or suspension shock-absorber with bridge or exploitation shock absorber and to marking shock absorber, therefore two due to being tested shock absorber
The performance of branch shock absorber 10 will not difference it is too big, so can be greatly improved using small-range, high-precision torque sensor 16
The comparison sensitivity of two performances of shock absorber 10 and compare precision.
2. Car Suspension's Absorber Performance comparison means structure
As shown in figure 1, Car Suspension's Absorber Performance comparison means is made up of exciting bank, test system, load-bearing frame.
2.1 exciting banks and motion
Exciting bank is by crank 3, connecting rod 4, connecting crank and connecting rod and two globular hinges of connection connecting rod and sliding block assembly 8
5th, sliding block assembly 8 forms；Using can be rotated with the power set driving crank 3 of speed governing, by crank 3, connecting rod 4 and sliding block assembly 8
Vertically reciprocating movement of the crank connecting rod sliding block mechanism of composition by the convert rotational motion of crank 3 for sliding block assembly 8.Sliding block assembly
The amplitude of 8 vertically reciprocating movements depends on the length of crank 3；The maximal rate of 8 vertically reciprocating movement of sliding block assembly depends on song
The speed of length and crank 3 revolution of handle 3；Therefore the rule that sliding block assembly 8 moves vertically is substantially quasi- simple harmonic motion.For
Closer to simple harmonic motion, the length of connecting rod 4 is at least 5 times of the length of crank 3.
2.2 test system
Test system is made up of 1 displacement transducer, 6, two pull pressure sensor 11 and comparator assembly 12；Wherein displacement passes
What sensor 6 measured is variable quantity of the sliding block assembly 8 relative to the position of bottom plate 1；And as seen from Figure 1, it is tested the lower end of shock absorber 10
Together with being connected firmly with the upper end of sliding block assembly 8；The tested upper end of shock absorber 10 is piston rod user terminal, passes through pull pressure sensor 11
Together with being connected firmly with comparator assembly 12, adjusting bolt 14 and entablature 13, and entablature 13 is solid by column 2 and bottom plate 1
Connection；What therefore displacement transducer 6 actually measured is the tested upper and lower side displacement of shock absorber 10, i.e., the tested oil storage cylinder of shock absorber 10
Relative to the relative motion displacement of piston rod and speed of related movement.The parameters such as specifications and models, accuracy class identical two
The damping force of individual pull pressure sensor 11 two shock absorbers being compared of direct measurement respectively；So sensed by two pressures
The shift value and velocity amplitude that the resistance of shock absorber force value that device 11 measures respectively measures with displacement transducer 6 can form two respectively
The external characteristics of tested shock absorber 10, i.e. model center building and speed characteristics.
As shown in Fig. 2 comparator assembly 12 is made up of lever 15, torque sensor 16, torque frame 17.Wherein, moment of torsion
Framework 17 is the installation foundation part of comparator assembly 12, and its upper end is connected with entablature 13 by adjusting bolt 14 and transmitted various
Power and torque；One end of the core component torque sensor 16 of comparator assembly 12 connects firmly with torque frame 17；Core component is turned round
The other end of square sensor 16 connects firmly under the support of torque frame 17 with the middle part of lever 15；The both ends of lever 15 respectively with two
Pull pressure sensor 11 connects firmly, and because the distance at lever 15 middle part to its both ends is equal, i.e., brachium is equal, therefore two pressures
The dynamic antivibration power moment of torsion that sensor 11 surveys the formation of absorber damping force difference will be acted on torque sensor 16.By
This, the comparator assembly 12 formed using lever 15, torque sensor 16, torque frame 17 is measured two and is picked up resistance of shock absorber
The displacement signal that dynamic antivibration torque caused by the difference of power and displacement transducer 6 are measured can form dynamic antivibration power moment of torsion and show
Work(figure and dynamic antivibration power speed of torque figure；Dynamic antivibration power moment of torsion indicator card illustrates dynamic antivibration power moment of torsion model center building, i.e.,
Under a certain specific incentives operating mode, in the difference of the damping force of diverse location two shock absorbers 10 of point；Explanation is shaken at one simultaneously
Two shock absorbers 10 absorb the difference of vibrational energy in dynamic oscillation cycle；Dynamic antivibration power speed of torque figure illustrates dynamic antivibration power
Torque-speed characteristics, i.e., the different differences for encouraging the damping force of two shock absorbers 10 under speed.
2.3 load-bearing frame
Load-bearing frame is formed by two root posts 2, bottom plate 1, sill 7, middle cross beam 9, entablature 13, and is formed apparatus of the present invention
Installation foundation assembly.Wherein sill 7, middle cross beam 9 are mainly that sliding block assembly 8 provides motion guide；Entablature 13 is by wherein
The swivel nut in portion is connected with adjusting bolt 14, can both bear various power and moment of torsion that adjusting bolt 14 transmits, can adjust again
The vertical direction position of whole screw rod 14, and then realize the adjustment of shock absorber installation dimension.
Claims (5)
1. suspension shock-absorber performance comparision device, it is characterised in that：Include exciting bank and test system, set in exciting bank
There is up-and-down movement mechanism；Pull pressure sensor is provided with test system（11）, comparator assembly（12）And displacement sensing
Device（6）；Up-and-down movement mechanism in described exciting bank is sliding block assembly（8）, sliding block assembly（8）Connect two vibration dampings
Device（10）One end, two shock absorbers（10）The other end simultaneously be connected to a comparator assembly（12）Both ends on,
In each shock absorber（10）With comparator assembly（12）Between be provided be used for detect shock absorber（10）Damp the sensor of force value
（11）, displacement transducer（6）It is arranged on up-and-down movement mechanism and bottom plate（1）Between, for detecting up-and-down movement machine
The upper and lower move distance of structure.
2. suspension shock-absorber performance comparision device according to claim 1, it is characterised in that：Wrapped in described exciting bank
Crank is included（3）, with crank（3）The connecting rod of connection（4）, with connecting rod（4）The globular hinge of connection（5）, sliding block assembly（8）With ball
Shape is hinged（5）Connection, so as to by crank（3）Convert rotational motion be sliding block assembly（8）Up-and-down movement.
3. suspension shock-absorber performance comparision device according to claim 1, it is characterised in that：Described exciting bank and survey
Test system is arranged in load-bearing frame, and load-bearing frame includes bottom plate（1）, both sides column（2）, be arranged on up-and-down movement
The sill of mechanism bottom（7）, be arranged on up-and-down movement mechanism and shock absorber（10）Between middle cross beam（9）, and set
In comparator assembly（12）The entablature at top（13）.
4. suspension shock-absorber performance comparision device according to claim 1, it is characterised in that：Described comparator assembly
（12）Middle lever（15）Both ends connect a shock absorber respectively（10）, lever（15）Center and torque sensor（16）One end
It is fixed together, torque sensor（16）The other end and torque frame（17）It is fixed together；Torque frame
（17）For comparator assembly（12）Installation foundation part, its upper end passes through adjusting bolt（14）Load-bearing frame knot outside connection
Structure.
5. the suspension shock-absorber performance comparision device in a kind of 1-4 using claim described in any one carries out shock absorber performance
The method compared, it is characterised in that：
1）, by two shock absorbers（10）In a set of exciting bank, bottom is driven common by up-and-down movement mechanism
Move reciprocatingly, displacement transducer（6）Up-and-down movement mechanism above-below direction moving displacement is measured, draws shock absorber（10）Storage
Oil cylinder is relative to the relative motion displacement of piston rod and speed of related movement；
2）, two shock absorbers（10）Top passes through pull pressure sensor respectively（11）Measure two shock absorbers（10）Damping force
Value, with reference to step 1）In the information that detects, form the respective model center building of two tested shock absorbers and speed characteristics；
3）, two pull pressure sensor（11）It is connected to same comparator assembly（12）Lever（15）Both ends, lever
（15）Middle part connects torque sensor（16）, pass through torque sensor（16）Draw torque difference, torque difference=two shock absorber（10）
The difference of damping force × from pull pressure sensor（11）Top is to lever（15）The length at center, so as to obtain two shock absorbers
（10）The difference of damping force；
4）, utilize lever（15）, torque sensor（16）, torque frame（17）The comparator assembly of composition（12）Measure two quilts
Examine shock absorber（10）Dynamic antivibration torque and displacement transducer caused by the difference of damping force（6）The displacement signal measured, can be with
Form dynamic antivibration power moment of torsion indicator card and dynamic antivibration power speed of torque figure；Dynamic antivibration power moment of torsion indicator card explanation dynamic hinders
Buddhist nun's power moment of torsion model center building, i.e., under a certain specific incentives operating mode, in two shock absorbers of diverse location point（10）Damping force
Difference；Explanation two shock absorbers within a vibration reciprocating cycle simultaneously（10）Absorb the difference of vibrational energy；Dynamic antivibration power
Speed of torque figure illustrates dynamic antivibration power torque-speed characteristics, i.e., the different differences for encouraging the damping force of two shock absorbers 10 under speed
Value.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108896325A (en) * | 2018-05-03 | 2018-11-27 | 燕山大学 | A kind of Vehicle Active Suspension cylinder performance test stand |
| CN110823542A (en) * | 2019-11-06 | 2020-02-21 | 中车青岛四方机车车辆股份有限公司 | Shock absorber testing device and shock absorber testing method |
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| KR19980016953A (en) * | 1996-08-30 | 1998-06-05 | 박문규 | Automotive Shock Absorber Tester |
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| CN103149036A (en) * | 2013-03-08 | 2013-06-12 | 山东理工大学 | Analysis method for external characteristic test in shock absorber |
| CN205138803U (en) * | 2015-12-04 | 2016-04-06 | 辽宁工业大学 | Crank double -slider shock absorber shows merit machine |
| CN105865811A (en) * | 2016-04-14 | 2016-08-17 | 辽宁工业大学 | Automotive suspension vibration damper energy characteristic testing system and automotive suspension vibration damper energy characteristic metering method |
| CN206479332U (en) * | 2017-03-03 | 2017-09-08 | 辽宁工业大学 | A kind of shock absorber performance test stand |
| CN207662639U (en) * | 2017-12-12 | 2018-07-27 | 辽宁工业大学 | Suspension shock-absorber performance comparison means |
Cited By (2)
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| CN108896325A (en) * | 2018-05-03 | 2018-11-27 | 燕山大学 | A kind of Vehicle Active Suspension cylinder performance test stand |
| CN110823542A (en) * | 2019-11-06 | 2020-02-21 | 中车青岛四方机车车辆股份有限公司 | Shock absorber testing device and shock absorber testing method |
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