CN107340096A - Six degree of freedom integral stiffness is tested and rotary inertia is test bed - Google Patents
Six degree of freedom integral stiffness is tested and rotary inertia is test bed Download PDFInfo
- Publication number
- CN107340096A CN107340096A CN201710657209.9A CN201710657209A CN107340096A CN 107340096 A CN107340096 A CN 107340096A CN 201710657209 A CN201710657209 A CN 201710657209A CN 107340096 A CN107340096 A CN 107340096A
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- China
- Prior art keywords
- platform
- hydraulic cylinder
- electric
- actuator assembly
- weighted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 239000000725 suspension Substances 0.000 claims abstract description 13
- 230000033001 locomotion Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- 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
- G01M1/10—Determining the moment of inertia
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
Abstract
A kind of six degree of freedom integral stiffness test and rotary inertia are test bed, including main part, electric-control system, host computer PC, the main part is made up of basic fixed platform, weighted platform and six sets of electric cylinders being arranged between basic fixed platform, weighted platform or hydraulic cylinder actuator assembly, wherein, the basic fixed platform is made up of upper mounting platform and base plate two parts;Wherein three sets of electric cylinders or the distribution triangular in shape of hydraulic cylinder actuator assembly are connected between basic platform and weighted platform along Z axis vertical direction arrangement, two sets of electric cylinders or hydraulic cylinder actuator assembly are connected between upper mounting platform and weighted platform by X-axis both sides horizontal direction arrangement, and a set of electric cylinder or hydraulic cylinder actuator assembly is connected between upper mounting platform and weighted platform by Y-axis horizontal direction arrangement.It meets commercial-vehicle cab suspension six to rigidity test, the test of driver's cabin rotary inertia and passenger vehicle body rigidity test.
Description
Technical field
Rotary inertia is tested for commercial-vehicle cab suspension test six to rigidity, driver's cabin and multiply the present invention relates to one kind
The testing stand tested with car body stiffness, specifically a kind of six degree of freedom integral stiffness test and rotary inertia testing experiment
Platform.
Background technology
At present, it is domestic to suspend six to rigidity, driver's cabin rotary inertia and passenger car without dependence test commercial-vehicle cab
The testing stand that body stiffness is tested jointly, similar testing stand only have six actuator（Electric cylinder or hydraulic cylinder）Six driven are freely
Weighted platform is spent, some gesture stabilities or loading can only be carried out, can not measure and resolve platform stress, finally calculate
The rigidity and rotary inertia of measured piece.
The content of the invention
The invention aims to solve test, driver's cabin rotary inertia survey of the commercial-vehicle cab suspension six to rigidity
The problem of examination and passenger vehicle body rigidity test, there is provided one kind has excellent in measurement accuracy, installation, operation, maintenance etc.
The six degree of freedom form measuring test-bed of gesture, meet that commercial-vehicle cab suspension six is surveyed to rigidity test, driver's cabin rotary inertia
Examination and passenger vehicle body rigidity test.
In order to achieve the above object, the present invention is achieved through the following technical solutions：A kind of six degree of freedom integral stiffness test
And rotary inertia is test bed, the testing stand includes main part, connects the electric-control system of main part, connects electric-control system
Host computer PC, the main part by basic fixed platform, weighted platform and be arranged on basic fixed platform, weighted platform it
Between six sets of electric cylinders or hydraulic cylinder actuator assembly form, wherein, the basic fixed platform is by upper mounting platform and base
Plinth flat board two parts are formed;Wherein three sets of electric cylinders or the distribution triangular in shape of hydraulic cylinder actuator assembly are along Z axis vertical direction
Arrangement is connected between basic platform and weighted platform, and two sets of electric cylinders or hydraulic cylinder actuator assembly are horizontal by X-axis both sides
Direction arrangement is connected between mounting platform and weighted platform, and a set of electric cylinder or hydraulic cylinder actuator assembly presses Y-axis water
Square it is connected to arrangement between upper mounting platform and weighted platform.
Electric cylinder or hydraulic cylinder the actuator assembly is by two cross mandrel connectors, a pull pressure sensor and one
Electric cylinder or hydraulic cylinder are formed, wherein the electric cylinder or hydraulic cylinder tail end connect a cross mandrel connector, it is electronic
Cylinder or hydraulic cylinder stretch out tailpiece of the piston rod connection pull pressure sensor one end, pull pressure sensor other end connection another cross
Mandrel connector.
The present invention has the advantages that：
1st, the metering system of testing stand of the present invention passes through six electric cylinders or hydraulic cylinder actuator（Each actuator head end installation
There is a pull pressure sensor）Drive weighted platform, weighted platform drive commercial-vehicle cab or passenger vehicle body carry out it is vertical,
Laterally, longitudinally, revolution, pitching and roll motion, when under the suspension of commercial-vehicle cab mount point be fixed on basic platform or
Person's passenger vehicle body is fixed on basic platform, passes through the motion state of driver's cabin（Displacement or angle）Add with what measurement calculated
Carrying platform stress（Six tension-compression sensors calculate weighted platform entirety stress）, cab mounting is calculated in each motion
The body stiffness of rigidity or passenger car under state.When driver's cabin does not install suspension, it is flat that driver's cabin directly is connected into loading
When on platform, by the sinusoidal motion of the inclination of weighted platform, pitching and yaw and the weighted platform stress calculated, it is calculated
The rotary inertia of driver's cabin.The testing stand can meet that most of commercial-vehicle cab suspension six rotates to rigidity test, driver's cabin
Inertia is tested and the requirement of passenger vehicle body rigidity test.
2nd, the present invention is easy to control, and measurement accuracy is high, and stability is good, installs and simple to operate.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 a, 2b, 2c are the structural representations of main part I of the present invention.
Fig. 3 is the basic fixed platform structural representation of main part I of the present invention.
Fig. 4 is the electric cylinder or hydraulic cylinder actuator assembly of main part I of the present invention
Structural representation.
Fig. 5 is that the present invention is used for commercial-vehicle cab six to main part I when rigidity test and rotary inertia testing experiment
Structural representation.
Fig. 6 is that the present invention is used for commercial-vehicle cab six to rigidity test experiment work view.
Fig. 7 is that the present invention is used for commercial-vehicle cab rotary inertia testing experiment working state schematic representation.
Fig. 8 is the structural representation that the present invention is used for passenger vehicle body rigidity test trial body part I.
Fig. 9 is that the present invention is used for passenger vehicle body rigidity test experiment work view.
Figure 10 is control principle schematic diagram of the present invention.
Embodiment
As shown in accompanying drawing 1,2,3：A kind of six degree of freedom integral stiffness test and rotary inertia are test bed, the testing stand
Including main part I, the electric-control system II of connection main part I, the host computer PC III of connection electric-control system II, the main part
Point I by basic fixed platform 1, weighted platform 2 and six sets of electric cylinders being arranged between basic fixed platform 1, weighted platform 2 or
Person's hydraulic cylinder actuator assembly 3 is formed, wherein, the basic fixed platform 1 is by upper mounting platform 1-1 and base plate 1-2 two
Part is formed;Wherein three sets of electric cylinders or the distribution triangular in shape of hydraulic cylinder actuator assembly 3 are arranged along Z axis vertical direction and connected
Between basic platform 1-2 and weighted platform 2, two sets of electric cylinders or hydraulic cylinder actuator assembly 3 press X-axis both sides horizontal direction
Arrangement is connected between mounting platform 1-1 and weighted platform 2, and a set of electric cylinder or hydraulic cylinder actuator assembly 3 presses Y-axis water
Square it is connected to arrangement between upper mounting platform 1-1 and weighted platform 2.
As shown in Figure 4：Electric cylinder or hydraulic cylinder the actuator assembly 3 is by two cross mandrel connector 3-1, a drawing
Pressure sensor 3-2 and an electric cylinder or hydraulic cylinder 3-3 are formed, wherein the electric cylinder or hydraulic cylinder 3-3 tail ends connect
A cross mandrel connector 3-1 is met, electric cylinder or hydraulic cylinder 3-3 stretch out tailpiece of the piston rod connection pull pressure sensor 3-2 one end,
Pull pressure sensor 3-2 other ends connection another cross mandrel connector 3-1.
As shown in Fig. 5, Fig. 6, Fig. 7：When being tested for commercial-vehicle cab, set on the weighted platform 2 of main part I
Put the commercial-vehicle cab installs fixture 4 of two parallel arrangements；When carrying out commercial-vehicle cab experiment, two installs fixtures 4
Upper end is connected with cab rigid, and the both ends of installs fixture 4 are rigidly connected with weighted platform 2, can so be transported by weighted platform 2
Dynamic to drive cab motions, two installs fixtures 4 arrange that relative position can be carried out according to different automobile types along Y-axis horizontal parallel
Front and rear adjustment, when doing driver's cabin six to stiffness test, four support suspension lower ends of driver's cabin are installed on basic fixed platform 1
On（As shown in Figure 6）, when doing the experiment of driver's cabin rotary inertia, driver's cabin does not install four support suspensions（As shown in Figure 7）.
As shown in Figure 8, Figure 9：When for passenger vehicle body stiffness test, four are set up on the weighted platform 2 of main part I
Suspension replaces fixture 5 and four vehicle body stationary fixtures 6, after the suspension is connected instead of fixture 5 with vehicle body original suspension point, lower end
It is installed on weighted platform 2, can be so moved by weighted platform 2 and drive body movement, during experiment on vehicle body stationary fixture 6
End is connected with vehicle body, and lower end is installed in basic fixed platform 1, and vehicle body stationary fixture 6 is according to vehicle and test requirements document fixed bit
Put adjustable.
By control main part I six electric cylinders or the stretching motion of hydraulic cylinder actuator 3 come weighted platform 2
Reach desired location status, weighted platform 2 drives commercial-vehicle cab or passenger vehicle body together to move, when driver's cabin hangs
Put lower mount point to be installed among basic fixed platform 1 or passenger vehicle body in basic fixed platform 1, commercial car is driven
Sail room or passenger vehicle body institute stress be delivered on weighted platform 2, the stress of weighted platform 2 can by six electric cylinders or
The pull pressure sensor 3-2 of the head end of person's hydraulic cylinder actuator 3 is resolved, most commercial-vehicle cab stress or passenger car at last
Vehicle body stress calculates cab mounting respectively to rigidity and body stiffness with the position displacement of change.When driver's cabin do not install it is outstanding
When putting and being directly on weighted platform 2, pass through the sinusoidal motion and resolving of the inclination of weighted platform 2, pitching and yaw
The weighted platform stress gone out, the rotary inertia of driver's cabin is calculated.
As shown in Figure 10：Described host computer PC III communicates connection electric-control system II by industrial bus, main part I
Electric cylinder or hydraulic cylinder actuator assembly are connected by data acquisition line with the data collecting system of electric-control system II.
Claims (4)
1. a kind of six degree of freedom integral stiffness test and rotary inertia are test bed, the testing stand includes main part, connection
The electric-control system of main part, connect the host computer PC of electric-control system, it is characterised in that：The main part is fixed flat by basis
Platform, weighted platform and the six sets of electric cylinders or hydraulic cylinder actuator assembly being arranged between basic fixed platform, weighted platform
Form, wherein, the basic fixed platform is made up of upper mounting platform and base plate two parts;Wherein three sets of electric cylinders or
The distribution triangular in shape of hydraulic cylinder actuator assembly is connected between basic platform and weighted platform along Z axis vertical direction arrangement, and two
Set electric cylinder or hydraulic cylinder actuator assembly by X-axis both sides horizontal direction arrangement be connected to upper mounting platform and weighted platform it
Between, a set of electric cylinder or hydraulic cylinder actuator assembly is connected to upper mounting platform and weighted platform by Y-axis horizontal direction arrangement
Between.
2. a kind of six degree of freedom integral stiffness test according to claim 1 and rotary inertia are test bed, its feature
It is:Electric cylinder or hydraulic cylinder the actuator assembly is by two cross mandrel connectors, a pull pressure sensor and one
Electric cylinder or hydraulic cylinder are formed, wherein the electric cylinder or hydraulic cylinder tail end connect a cross mandrel connector, electric cylinder
Or hydraulic cylinder stretches out tailpiece of the piston rod connection pull pressure sensor one end, pull pressure sensor other end connection another cross axle
Connector.
3. a kind of six degree of freedom integral stiffness test according to claim 1 or claim 2 and rotary inertia are test bed, its feature
It is:When being tested for commercial-vehicle cab, the commercial car of two parallel arrangements is set on the weighted platform of main part
Driver's cabin installs fixture.
4. a kind of six degree of freedom integral stiffness test according to claim 1 or claim 2 and rotary inertia are test bed, its feature
It is:When for passenger vehicle body stiffness test, set up on the weighted platform of main part four suspensions instead of fixture and
Four vehicle body stationary fixtures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657209.9A CN107340096A (en) | 2017-08-03 | 2017-08-03 | Six degree of freedom integral stiffness is tested and rotary inertia is test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657209.9A CN107340096A (en) | 2017-08-03 | 2017-08-03 | Six degree of freedom integral stiffness is tested and rotary inertia is test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107340096A true CN107340096A (en) | 2017-11-10 |
Family
ID=60217832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710657209.9A Pending CN107340096A (en) | 2017-08-03 | 2017-08-03 | Six degree of freedom integral stiffness is tested and rotary inertia is test bed |
Country Status (1)
| Country | Link |
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| CN (1) | CN107340096A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024308A (en) * | 2019-12-19 | 2020-04-17 | 中国特种飞行器研究所 | Method for measuring weight, gravity center and rotational inertia of ship model |
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| CN102455250A (en) * | 2010-10-22 | 2012-05-16 | 上海汽车集团股份有限公司 | System and method for testing body-in-white bending rigidity of automobile |
| CN103149037A (en) * | 2013-03-22 | 2013-06-12 | 吉林大学 | Multiple-degree-of-freedom suspension K&C (kinematics & compliance) property test platform |
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| CN207423446U (en) * | 2017-08-03 | 2018-05-29 | 长春孔辉汽车科技股份有限公司 | Six degree of freedom integral stiffness is tested and rotary inertia is test bed |
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2017
- 2017-08-03 CN CN201710657209.9A patent/CN107340096A/en active Pending
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| JP2010531773A (en) * | 2007-07-02 | 2010-09-30 | ルノー・エス・アー・エス | A method for identifying the vertical moment of inertia and cornering stiffness of automobiles. |
| CN201193971Y (en) * | 2007-12-27 | 2009-02-11 | 奇瑞汽车股份有限公司 | Car white vehicle body structure static angular rigidity testing system |
| CN102455250A (en) * | 2010-10-22 | 2012-05-16 | 上海汽车集团股份有限公司 | System and method for testing body-in-white bending rigidity of automobile |
| CN103149037A (en) * | 2013-03-22 | 2013-06-12 | 吉林大学 | Multiple-degree-of-freedom suspension K&C (kinematics & compliance) property test platform |
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| CN105841908A (en) * | 2016-05-25 | 2016-08-10 | 江阴圣世杰机械制造有限公司 | Excitation test stand for fatigue resistance performance of overturning locking device of cab |
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| CN207423446U (en) * | 2017-08-03 | 2018-05-29 | 长春孔辉汽车科技股份有限公司 | Six degree of freedom integral stiffness is tested and rotary inertia is test bed |
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| CN111024308A (en) * | 2019-12-19 | 2020-04-17 | 中国特种飞行器研究所 | Method for measuring weight, gravity center and rotational inertia of ship model |
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| PB01 | Publication | ||
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Application publication date: 20171110 |