CN108489742A - A kind of half vehicle device of experiment based on vibration equivalence - Google Patents
A kind of half vehicle device of experiment based on vibration equivalence Download PDFInfo
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- CN108489742A CN108489742A CN201810640860.XA CN201810640860A CN108489742A CN 108489742 A CN108489742 A CN 108489742A CN 201810640860 A CN201810640860 A CN 201810640860A CN 108489742 A CN108489742 A CN 108489742A
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- car body
- vibration
- half vehicle
- vehicle device
- elbow
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- 238000002474 experimental method Methods 0.000 title claims abstract description 19
- 238000013016 damping Methods 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000012795 verification Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 21
- 239000011159 matrix material Substances 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004088 simulation Methods 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of half vehicle device of experiment based on vibration equivalence, it is characterized in that：Including elastic element, damping element, balance arm, additional elbow, car body and two is oriented to wall；Two guiding walls are arranged in parallel in car body both sides, and car body both sides are respectively equipped with multiple balance arms, and elastic element and damping element are equipped between car body and balance arm, and each balance arm connects a wheel body, and wheel body connection adds elbow, and additional elbow is connect with the guiding wall of car body both sides.The present invention utilizes the Principle Method of vibration equivalence, the attributes such as quality, the rotary inertia that can simulate half vehicle model of actual measurement by installing clump weight, the experimental verification of half vehicle model of vibration of realization theory is tested, with simple in structure, it is easy to operate, versatility is good, and half vehicle model of vibration of a variety of different vehicles can be simulated by adjusting parameter, effectively increases the efficiency of entire experimental provision.
Description
Technical field
The present invention relates to a kind of Vehicular vibration experimental apparatus for testing, and in particular to a kind of experiment based on vibration equivalence half
Vehicle device.
Background technology
Vehicle suspension system is the critical component for determining road holding and damping property, in order to effectively improve vehicle
The service life etc. of the riding comfort and raising vehicle of driving performance and occupant, needs to carry out the suspension of vehicle
Particular study.
When whole vehicle damping property is studied, directly actual vehicle is carried out in damping property experimental study mostly
Testing research needs to spend very high expense and time that could complete relevant experimental study in this way, also limits Vehicle damper
The development of performance test and optimization design research to suspension parameter.Therefore, it is necessary to design and can be simulated using some more
The experimental provision of kind vehicle, preferably to carry out experimental study.
It is typically all directly test run to be used to test in existing experimental study, in this way, in some large sizes, especially heavy goods vehicles
Damping property experimental study in, need very big exciting force and power, therefore, constrain the vibration performance of heavy vehicle
The development of experimental study, the also promotion of the driving performance of influence power heavy vehicle and comfort.
And through being studied frequently with half vehicle model in the theoretical calculation and numerical simulation of vehicle system dynamics, in order to
Preferably theoretical model is verified and tested, it is necessary to design and half vehicle device of theoretical corresponding experiment.
Invention content
It is easy to operate and can effectively carry out in order to solve the above technical problem, the present invention provides a kind of simple in structure
The half vehicle device of experiment based on vibration equivalence of heavy vehicle vehicle vibration experiment research.
The technical solution adopted by the present invention is：
A kind of half vehicle device of experiment based on vibration equivalence, including elastic element, damping element, balance arm, additional elbow,
Car body and two is oriented to wall；Two guiding walls are arranged in parallel in car body both sides, and car body both sides are respectively equipped with multiple balance arms, car body with it is flat
Weigh and be equipped with elastic element and damping element between elbow, each balance arm connects a wheel body, and wheel body connection adds elbow, add elbow with
The guiding wall of car body both sides connects.
In the above-mentioned half vehicle device of experiment based on vibration equivalence, one end of the elastic element and car body are hinged,
One end of the other end and damping element is hinged；The other end of damping element is mounted in shaft, and shaft installation on the car body can
Rotation, balance arm are fixedly mounted on the other end of shaft.
In the above-mentioned half vehicle device of experiment based on vibration equivalence, the wheel body is using endless track installation
Bogie wheel or pneumatic tire.
In the above-mentioned half vehicle device of experiment based on vibration equivalence, the balance arm is hollow tubular structure.
In the above-mentioned half vehicle device of experiment based on vibration equivalence, the car body is using hollow shell knot
Structure.
Compared with prior art, the invention has the advantages that：
1. the configuration of the present invention is simple, easy to operate, using half vehicle experimental model, experimental expenses is reduced；
2. the present invention in use, can by adjusting the parameter of elastic element and damping element, or directly replace it is whole elasticity member
Part and damping element realize the optimization design research of suspension；
3. the body construction part of the present invention uses hollow housing structure, half vehicle of various different vehicles can be presented by counterweight
The kinetic effect of model realizes the experiment of Multiple Type wheel using a kind of equipment, need not be directed to various types of vehicles
Wheel design kinds of experiments equipment, has saved cost.
Description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the side view of the present invention.
Fig. 3 is the stereogram of the present invention.
Fig. 4 is that the present invention removes the stereogram after crawler belt.
Fig. 5 is the half vehicle model of vibration of the present invention.
In figure：1- wheel bodys, 2- elastic elements, 3- damping elements, 4- balance arms, 5- add elbow, 6- car bodies, 7- and are oriented to wall.
Specific implementation mode
Following further describes the present invention with reference to the drawings.
As Figure 1-Figure 4, the present invention includes wheel body 1, elastic element 2, damping element 3, balance arm 4, additional elbow 5, vehicle
Body 6 and two is oriented to wall 7.Two guiding walls 7 are arranged in parallel in the both sides of car body 6, can limit car body 6, make car body 6 that can only generate
Upper and lower movement and pitching movement.6 both sides of car body are respectively equipped with multiple balance arms 4, are equipped between car body 6 and balance arm 4
Elastic element 2 and damping element 3.Balance shaft is mounted on one end of shaft 41, and shaft 41 is mounted on car body 6, can rotate；Turn
The other end of axis 41 is connect with one end of elastic element 2, and the other end of elastic element 2 is connect with one end of damping element 3, damping
The other end of element 3 is hinged with car body 6.Each balance arm 4 connects a wheel body 1, and the connection of wheel body 1 adds elbow 5, add elbow 5 with
The guiding wall 7 of 6 both sides of car body connects.
The parameter of the elastic element 2 and damping element 3 can be adjusted, and the structure of car body 6 is hollow shell structure.
The present invention can simulate a variety of different model vehicles by adjusting elastic element 2, the counterweight of the parameter of damping element 3 and car body 6
The elasticity of vehicle of half vehicle model of vibration, the quality of damping and car body, rotary inertia, to half vehicle to different model vehicle
Vibration performance carries out experimental study, effectively improves the damping property of suspension.
The wheel body 1 can also be used pneumatic tire, can be replaced at any time using the bogie wheel of endless track installation, from
And make the vehicle of endless track installation and running gear system that can be studied with the present invention.2 He of elastic element
Damping element 3 can be convenient for changing, and the suspension of a variety of different vehicles can be simulated by changing its rigidity, amortization data.
The balance arm 4 uses hollow tubular structure, and the true of the vehicle of the different model of different suspensions can be simulated by counterweight
The quality and rotary inertia of real balance arm.
Corresponding to the present invention is half vehicle model of vibration as shown in figure 5, set α as vehicle body in the horizontal direction in the counterclockwise direction
Angle, msFor car body mass, IsThe moment of inertia for car body around barycenter in vertical plane, v are travel speed, body oscillating
The differential equation is：
In formula：A=[1,1,1,1,1,1] is transposed matrix；Ks=[ks1, ks2, ks3, ks4, ks5, ks6] it is suspension elasticity member
The stiffness matrix of part, ks1~ks6For the stiffness coefficient of each suspension elastic element；Kt=[kt1, kt2, kt3, kt4, kt5, kt6] be
The non-suspension stiffness matrix of system, kt1~kt6For the non-suspension stiffness coefficient of each suspension；Cs=[cs1, cs2, cs3, cs4, cs5, cs6]
To hang the damping matrix of damping element, cs1~cs6For the damped coefficient of each suspension damping element；F=[f1, f2, f3, f4,
f5, f6] be Active Suspensions control force matrix, f1~f6For the control force of each suspension Active Suspensions；L=[l1, l2, l3, l4,
l5, l6] it is each suspension to the distance matrix of barycenter, l1~l6For the distance of each suspension to barycenter；Mt=[mt1, mt2,
mt3, mt4, mt5, mt6] it is suspension unsprung mass matrix, mt1~mt6For the unsprung mass of each suspension；Xr=diag
(xr1, xr2, xr3, xr4, xr5, xr6) it is wheel displacements diagonal matrix, xr1~xr6For the displacement of each wheel；Xt=diag (xt1,
xt2, xt3, xt4, xt5, xt6) it is uneven road surface vertical displacement diagonal matrix, xt1~xt6It is vertical for the corresponding uneven road surface of each wheel
Displacement；Xs=diag (xs-l1α, xs-l2α, xs-l3α, xs-l4α, xs-l5α, xs-l6α) it is suspension junction displacement diagonal matrix,
xsFor car body displacement, α is car body pitch angle.
In the above-mentioned body oscillating differential equation, car body only has vertical and pitching both direction degree of freedom, therefore at this
Setting is oriented to wall, and mounting plane limit element in experimental provision, enables half vehicle model and can only generate to move and bow above and below
Movement is faced upward, to realize the vertical and pitch freedom movement of car body in half vehicle model of vibration.
Claims (5)
1. a kind of half vehicle device of experiment based on vibration equivalence, it is characterized in that：Including elastic element, damping element, balance arm,
Additional elbow, car body and two are oriented to wall；Two guiding walls are arranged in parallel in car body both sides, and car body both sides are respectively equipped with multiple balance arms,
Elastic element and damping element are equipped between car body and balance arm, each balance arm connects a wheel body, and wheel body connection adds elbow,
Additional elbow is connect with the guiding wall of car body both sides.
2. the experiment half vehicle device according to claim 1 based on vibration equivalence, it is characterized in that：The elastic element
One end and car body it is hinged, one end of the other end and damping element is hinged；The other end of damping element is mounted in shaft, shaft
Installation can rotate on the car body, and balance arm is fixedly mounted on the other end of shaft.
3. the experiment half vehicle device according to claim 1 based on vibration equivalence, it is characterized in that：The wheel body uses
Be endless track installation bogie wheel or pneumatic tire.
4. the experiment half vehicle device according to claim 1 or 2 based on vibration equivalence, it is characterized in that：The balance
Elbow is hollow tubular structure.
5. the experiment half vehicle device according to claim 1 or 2 based on vibration equivalence, it is characterized in that：The car body
Using hollow shell structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810640860.XA CN108489742A (en) | 2018-06-21 | 2018-06-21 | A kind of half vehicle device of experiment based on vibration equivalence |
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| CN201810640860.XA CN108489742A (en) | 2018-06-21 | 2018-06-21 | A kind of half vehicle device of experiment based on vibration equivalence |
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| CN108489742A true CN108489742A (en) | 2018-09-04 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1557656A2 (en) * | 2004-01-23 | 2005-07-27 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Procedure and device for determining the suspension damping of vehicles |
| CN103048033A (en) * | 2012-11-30 | 2013-04-17 | 中北大学 | Track-laying vehicle loading wheel load test device |
| CN103273976A (en) * | 2013-06-04 | 2013-09-04 | 中国北方车辆研究所 | Design method of tank suspension system based on riding comfort |
| CN105221632A (en) * | 2015-09-30 | 2016-01-06 | 中国人民解放军装甲兵工程学院 | A kind of damping continuously adjustabe hydro pneumatic suspension |
| CN106347510A (en) * | 2016-09-19 | 2017-01-25 | 浙江大学 | Combined type suspension system for tracked vehicle |
| CN207257818U (en) * | 2017-08-21 | 2018-04-20 | 江苏中天引控智能系统有限公司 | A kind of robot multi-link lever suspension fork wheel and single hop crawler type walking mechanism |
| CN208350393U (en) * | 2018-06-21 | 2019-01-08 | 湖南科技大学 | A kind of half vehicle device of experiment |
-
2018
- 2018-06-21 CN CN201810640860.XA patent/CN108489742A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1557656A2 (en) * | 2004-01-23 | 2005-07-27 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Procedure and device for determining the suspension damping of vehicles |
| CN103048033A (en) * | 2012-11-30 | 2013-04-17 | 中北大学 | Track-laying vehicle loading wheel load test device |
| CN103273976A (en) * | 2013-06-04 | 2013-09-04 | 中国北方车辆研究所 | Design method of tank suspension system based on riding comfort |
| CN105221632A (en) * | 2015-09-30 | 2016-01-06 | 中国人民解放军装甲兵工程学院 | A kind of damping continuously adjustabe hydro pneumatic suspension |
| CN106347510A (en) * | 2016-09-19 | 2017-01-25 | 浙江大学 | Combined type suspension system for tracked vehicle |
| CN207257818U (en) * | 2017-08-21 | 2018-04-20 | 江苏中天引控智能系统有限公司 | A kind of robot multi-link lever suspension fork wheel and single hop crawler type walking mechanism |
| CN208350393U (en) * | 2018-06-21 | 2019-01-08 | 湖南科技大学 | A kind of half vehicle device of experiment |
Non-Patent Citations (1)
| Title |
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| 张海涛 等: "整车模型被动悬架的建模与仿真分析" * |
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Application publication date: 20180904 |