CN110006615A - The running gear of hot-short wind tunnel model based on principle of inertia driving - Google Patents
The running gear of hot-short wind tunnel model based on principle of inertia driving Download PDFInfo
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- CN110006615A CN110006615A CN201910293475.7A CN201910293475A CN110006615A CN 110006615 A CN110006615 A CN 110006615A CN 201910293475 A CN201910293475 A CN 201910293475A CN 110006615 A CN110006615 A CN 110006615A
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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
- G01M17/08—Railway vehicles
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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
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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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
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/08—Aerodynamic models
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Abstract
The invention belongs to wind-tunnel technique fields, are related to a kind of running gear of hot-short wind tunnel model based on principle of inertia driving, including wind tunnel laboratory, test guide rail, vehicle test model, accelerating sections, braking section；Accelerator is provided on accelerating sections；Deceleration device is provided on braking section；Accelerator only leans against on vehicle test model and provides initial motion power to vehicle test model；The end of accelerator connects with the end of the test guide rail of accelerating sections upper surface；After vehicle test model obtains the initial motion power provided by accelerator, successively enter wind tunnel laboratory from accelerating sections by inertia, finally the stop motion under the action of deceleration device on braking section.The present invention be suited to speed up apart from short, instantaneous acceleration reach kilometers up to a hundred speed hourly, the safety for not limited by contour of the vehicle, design cost being reduced and can be improved test the hot-short wind tunnel model based on principle of inertia driving running gear.
Description
Technical field
The invention belongs to wind-tunnel technique field, it is related to a kind of accelerator, more particularly to a kind of based on principle of inertia
The running gear of the hot-short wind tunnel model of driving.
Background technique
Ended for the end of the year 2018, Chinese high-speed rail revenue kilometres reach 2.9 ten thousand kilometers or more, and highway mileage number is public up to 130,000
In, 50% or more Bridge accounting, with the birth of Super Engineerings such as " port Zhuhai and Macao bridges ", bridge span is increasing, hands over
Logical operation is faced with " over strait to wear mountain " and the more severe challenge of wind environment.
Due to both at home and abroad because the safety accident of hot-short in motion caused by high wind takes place frequently, light then road network terminal, weight
Then car crash guarantees that the vehicle safety run at high speed operation becomes present scientific research personnel and needs to solve with engineering staff one
Certainly the problem of.At present in terms of emphasis Pneumatic safety research, primary study be vehicle aerodynamic configuration, vehicle and attached
Influence of the aerodynamic interference and wind of facility to the dynamic characteristics of structure, and in these research methods, wind tunnel test is one
And its important method and means.And working important that conventional wind tunnel test at present is carried out is static structural test, and it is past
It is difficult to explain interstructural aerodynamics problem completely toward this mode, carries out a kind of energy-efficient test device systematic and side
Method has extremely important and real meaning for scientific research.
Summary of the invention
In order to solve the above technical problems in background technology, the present invention provides one kind to be suited to speed up distance
Short, instantaneous acceleration reaches kilometers up to a hundred speed hourly, is not limited by contour of the vehicle, can reduce design cost and can
Improve the running gear of the hot-short wind tunnel model based on principle of inertia driving of the safety of test.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of running gear of the hot-short wind tunnel model based on principle of inertia driving, it is characterised in that: described to be based on
The running gear of the hot-short wind tunnel model of principle of inertia driving includes wind tunnel laboratory, test guide rail, vehicle test model
Accelerating sections；The upper surface of the accelerating sections and wind tunnel laboratory is equipped with test guide rail；Acceleration is provided on the accelerating sections
Device；The accelerator only leans against on vehicle test model and provides initial motion power to vehicle test model；It is described to add
The end of speed variator connects with the end of the test guide rail of accelerating sections upper surface；The vehicle test model is obtained by accelerating to fill
After the initial motion power of offer is provided, successively enter wind tunnel laboratory from accelerating sections by inertia.
Preferably, accelerator of the present invention include high-speed servo motor, rotation belt wheel, external tooth thrust plate,
High-intensitive carousel；The high intensity carousel is wrapped on rotation belt wheel；The high-speed servo motor and rotation
Belt wheel, which is connected and passes through rotation belt wheel, drives high-intensitive carousel rotation；One end of the external tooth thrust plate is arranged in height
It is rotated synchronously on intensity carousel and with high-intensitive carousel, the other end is inserted into vehicle test model.
Preferably, rotation belt wheel of the present invention is at least two；The high intensity carousel is annular in shape
And tension is strutted by rotation belt wheel；The high-speed servo motor, which is connected with any one rotation belt wheel and passes through rotation belt wheel, to be driven
High-intensitive carousel rotation.
Preferably, high-speed servo motor of the present invention by rotation belt wheel and high-intensitive carousel to
After driving vehicle test model to provide initial motion power, test guide rail of the vehicle test model in accelerating sections upper surface
On instantaneous velocity be not less than 100km/h.
Preferably, the running gear of the hot-short wind tunnel model of the present invention based on principle of inertia driving is also
Including braking section；The accelerating sections, wind tunnel laboratory and braking section are then set gradually before and total length is L；It is described to add
The upper surface of fast section and wind tunnel laboratory is equipped with test guide rail；Deceleration device is provided on the braking section；The vehicle
After test model obtains the initial motion power provided by accelerator, successively enter wind tunnel experiment from accelerating sections by inertia
Room, the finally stop motion under the action of deceleration device on braking section；The length of the accelerating sections is LAdd；The braking section
Length be LSubtract；The LAdd=LSubtract≤L。
Preferably, deceleration device of the present invention includes the braking frictional resistance for being placed in braking section upper surface test guide rail
Device；By the braking friction device friction on the vehicle test model of wind tunnel laboratory and braking section upper surface test guide rail
It is braked；
The braking friction device is that deceleration friction plate is formed by by polyurethane；The deceleration friction plate is arranged in pairs in
It tests on guide rail braking section upper surface；By on the vehicle test model of wind tunnel laboratory and braking section upper surface test guide rail
Deceleration friction plate friction braked；The surface that the braking friction device is in contact with vehicle test model is wave-shaped.
Preferably, deceleration device of the present invention further includes being placed in delaying for braking section upper surface test guide rail end
Rush block.
Preferably, vehicle test model of the present invention includes vehicle wind tunnel model coat, model structure support
Stringer, model structure support beam, model dynamic pulley, dynamic pulley connecting rod and derailing embrace rail device；The model knot
Structure support stringer and model structure support beam transverse and longitudinal are staggered to form the frame structure of vehicle test model；The vehicle
Wind tunnel model coat is placed in outside frame structure；The frame structure bottom is provided with pairs of model dynamic pulley；In pairs
Model dynamic pulley by dynamic pulley connecting rod be connected；It is provided with derailing in the frame structure and embraces rail device；It is described anti-
Derailing embraces rail device and is arranged on the outer profile of test guide rail and has spacing between test guide rail；The model dynamic pulley
Be stuck in test guide rail on and can test guide rail on along test guide rail axial movement；The accelerator only leans against model
Initial motion power is provided on structural support stringer and to model structure support stringer.
Preferably, the running gear of the hot-short wind tunnel model of the present invention based on principle of inertia driving is also
Including changeover portion and aperture section；The changeover portion and aperture Duan Jun are that it is symmetricly set on wind tunnel laboratory two sides in pairs；
The accelerating sections, changeover portion, aperture section, wind tunnel laboratory, aperture section, changeover portion and braking section are then set gradually from preceding
And total length is L；The accelerating sections, changeover portion, aperture section, wind tunnel laboratory, aperture section, changeover portion and braking section it is upper
Surface is equipped with test guide rail.
Preferably, the running gear of the hot-short wind tunnel model of the present invention based on principle of inertia driving is also
Braced frame including test guide rail bottom is arranged in.
The invention has the advantages that
The present invention provides a kind of running gears of hot-short wind tunnel model based on principle of inertia driving, including wind-tunnel
Laboratory, test guide rail, vehicle test model, accelerating sections, braking section；Accelerating sections, wind tunnel laboratory and braking section from preceding and
After set gradually and total length is L；The upper surface of accelerating sections, wind tunnel laboratory and braking section is equipped with test guide rail；Add
Accelerator is provided in fast section；Deceleration device is provided on braking section；Accelerator only lean against on vehicle test model and to
Vehicle test model provides initial motion power；The end phase of the end of accelerator and the test guide rail of accelerating sections upper surface
It connects；After vehicle test model obtains the initial motion power provided by accelerator, successively enter wind from accelerating sections by inertia
Hole laboratory, the finally stop motion under the action of deceleration device on braking section；The length of accelerating sections is LAdd；Braking section
Length is LSubtract；LAdd=LSubtract≤L.Vehicle test model is experimental study object, tries vehicle under the co-ordination of accelerator
It tests model to accelerate to setting speed, reaches accelerating sections tail end, vehicle test model is with high speed via accelerated test
Section track pop-up, leaves accelerating sections, enters wind tunnel laboratory along test guide rail.The present invention from back to front successively include accelerating sections,
Linkage section, aperture section, wind tunnel laboratory, linkage section and aperture section close proximity, wherein aperture section is provided with one in wind tunnel side wall
The square hole for enabling vehicle wind tunnel model be freely accessible to, it is vertical with track.The present invention is based in the wind-tunnel using principle of inertia driving
Vehicle wind tunnel model acceleration system proposes a kind of using inertia as model high-speed driving power, and model scale ratio can be in 1:8
~1:30, model weight is 10~30kg, and the maximum instantaneous velocity that orbits is up to 200km/h.Extremely short 30
From accelerated slip driving to being tested to the method for being decelerated to stopping on the long track of rice.Core of the invention thought is to utilize fortune
The working principle of dynamic inertia, it is using synchrome conveying belt, vehicle is fixed on a moving belt, it is engaged by baffle and vehicle, makes to pass
Section is sent to accelerate in a very short period of time；And baffle is with the mutual snapping of model and with same direction high-speed motion；Work as conveyer belt
Accelerating sections end is run to, model vehicle and conveyer belt are detached from, and model is emitted forward with instantaneous maximum speed along track.Due to
Movement velocity is fast, and vehicle wind tunnel model derails in order to prevent, has installed an armful rail system additional in vehicle chassis.It is tested using the present invention
System can not only carry out whether there is or not the mono-/bis-under beam wind state to aerodynamics of vehicle study, vehicle-bridge system can also be carried out
The aerodynamic studies and wind-train-bridge system Coupling Research of the vehicles such as system operation affiliated facility system.
With current existing acceleration device for vehicle compared with mode, the present invention is suited to speed up apart from short, and can be by upper number
Ten kilograms of vehicle wind tunnel model is instantaneous to accelerate to reach kilometers up to a hundred speed hourly in extremely short acceleration distance, and not by
Contour of the vehicle limitation, can be according to any replacement mode shape of needs of test, and suitable for the demand of different tests purpose, this is
System is conducive to ultrashort experiment distance, reduces design cost, improve the safety of test while meeting speed.Together
When, using the principle of inertial drive test model, driving capability is strong, and the time is short, and speed is fast；Driving force does not act directly on vehicle
On wind tunnel model, it can protect the integrality of test model coat during the test, guarantee that the true of data rationally has
Effect；Accelerated mode is easily achieved, and drive efficiency is good, being capable of short time short distance completion acceleration；It is in orbit train can be simulated
Operation, meets true train operating condition；Such mode saves energy and do not generate very big noise improves test efficiency again.
Detailed description of the invention
Fig. 1 is the structure of the running gear of the hot-short wind tunnel model provided by the present invention based on principle of inertia driving
Schematic diagram；
Fig. 2 is the vertical view of the running gear of the hot-short wind tunnel model provided by the present invention based on principle of inertia driving
Structural schematic diagram；
Fig. 3 is the examination of the running gear of the hot-short wind tunnel model provided by the present invention based on principle of inertia driving
Test sectional view；
1- wind tunnel laboratory；2- vehicle test model；3- high-speed servo motor；4- rotates belt wheel；5- external tooth thrust plate；6-
High-intensitive carousel；7- tests guide rail；8- buffer stopper；9- braced frame；10- brakes friction device；11- bridge etc. is attached
Belong to facility；12- accelerating sections；13- braking section；14- vehicle wind tunnel model coat；15- model structure support stringer；16- model knot
Structure support beam；17- model dynamic pulley；18- dynamic pulley connecting rod；19- derailing embraces rail device；20- aperture section；21- mistake
Cross section.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figures 1 to 3, the present invention provides a kind of operations of hot-short wind tunnel model based on principle of inertia driving
Device, including wind tunnel laboratory 1, test guide rail 7, vehicle test model 2, accelerating sections 12；Accelerating sections 12 and wind tunnel laboratory 1
It is then set gradually and total length is L from preceding；The upper surface of accelerating sections 12 and wind tunnel laboratory 1 is equipped with test guide rail 7；
Accelerator is provided on accelerating sections；Accelerator is only leaned against on vehicle test model 2 and is provided just to vehicle test model 2
Beginning motion-promotion force；The end of accelerator connects with the end of the test guide rail 7 of 12 upper surface of accelerating sections；Vehicle test model 2
After the initial motion power provided by accelerator is provided, successively enter wind tunnel laboratory 1 from accelerating sections 12 by inertia.
Accelerator includes high-speed servo motor 3, rotation belt wheel 4, external tooth thrust plate 5, high-intensitive carousel 6；It is high
Intensity carousel 6 is wrapped on rotation belt wheel 4；High-speed servo motor 3 is connected with rotation belt wheel 4 and by rotation belt wheel 4
High-intensitive carousel 6 is driven to rotate；One end of external tooth thrust plate 5 be arranged on high-intensitive carousel 6 and with it is high-strength
It spends carousel 6 to rotate synchronously, the other end is inserted into vehicle test model 2.It rotates belt wheel 4 and is at least two；High intensity rotation
Turn conveyer belt 6 annularly and struts tension by two rotation belt wheels 4；High-speed servo motor 3 is connected with any one rotation belt wheel 4
And high-intensitive carousel 6 is driven to rotate by rotating belt wheel 4.
As depicted in figs. 1 and 2, accelerating sections 12 includes high-speed servo motor 3, rotates belt wheel 4, and external tooth thrust plate 5 is high-intensitive
Carousel 6 and A partial experiment guide rail 7.Wherein external tooth thrust plate 5 is mounted on high-intensitive carousel 6, is followed
High-intensitive carousel 6 rotates together, and high-intensitive carousel 6 is among test guide rail 7.As shown in Figure 1, accelerating sections
It include toothed belt transmission driving mechanism, high-speed servo motor 3 and supporting support 9 in 12.High-speed servo motor 3 uses can moment
Beyond several times of rated frequency of ultrahigh rotating speed motor, wherein toothed belt transmission driving mechanism includes rotation belt wheel 4, external tooth thrust
Plate 5, high-intensitive carousel 6 and the test guide rail 7 to connect with it, control section pass through control high-speed servo motor 3
Revolving speed realize vehicle test model 2 velocity variations, in order to guarantee the rotational stability of high-intensitive carousel 6, avoid because
3 revolving speed of high-speed servo motor is too fast and unstability occurs in high-intensitive 6 length variation of carousel, successively different spacing settings
Multiple rotation belt wheels 4, setting press strip is between rotation belt wheel 4 to guarantee that docking matches.As shown in Figure 1, accelerating sections 12 docks
Changeover portion 21 and aperture section 20, wherein aperture section 20 and changeover portion 21 are arranged symmetrically, and it is more effective to be conducive to vehicle test model 2
Reasonably enter wind tunnel laboratory 1.
High-speed servo motor 3 is mentioned by rotation belt wheel 4 and high-intensitive carousel 6 to drive vehicle test model 2
After initial motion power, instantaneous velocity of the vehicle test model 2 on the test guide rail 7 of 12 upper surface of accelerating sections is not less than
100km/h。
The running gear of hot-short wind tunnel model provided by the present invention based on principle of inertia driving further includes slowing down
Section 13；Accelerating sections 12, wind tunnel laboratory 1 and braking section 13 are then set gradually before and total length is L；12 He of accelerating sections
The upper surface of wind tunnel laboratory 1 is equipped with test guide rail 7；Deceleration device is provided on braking section；Vehicle test model 2 obtains
After the initial motion power provided by accelerator is provided, successively enter wind tunnel laboratory 1 from accelerating sections 12 by inertia, finally
The stop motion under the action of deceleration device on braking section；The length of accelerating sections is LAdd；The length of braking section is LSubtract；LAdd=
LSubtract≤L.Deceleration device includes the braking friction device 10 for being placed in 13 upper surface of braking section test guide rail 7；By wind tunnel laboratory
1 vehicle test model 2 is braked with the friction of braking friction device 10 on 13 upper surface of braking section test guide rail 7.
Braking friction device 10 is that deceleration friction plate is formed by by polyurethane；Deceleration friction plate is arranged in pairs in braking section
It tests on guide rail 7 13 upper surfaces；Guide rail 7 is tested by the vehicle test model 2 of wind tunnel laboratory 1 and 13 upper surface of braking section
On deceleration friction plate friction braked；The surface that braking friction device 10 is in contact with vehicle test model 2 is in wave
Shape；Deceleration device further includes the buffer stopper 8 for being placed in 13 upper surface of braking section test 7 end of guide rail.
Vehicle test model 2 includes vehicle wind tunnel model coat 14, model structure support stringer 15, model structure support cross
Beam 16, model dynamic pulley 17, dynamic pulley connecting rod 18 and derailing embrace rail device 19；Model structure support stringer 15 with
And 16 transverse and longitudinal of model structure support beam is staggered to form the frame structure of vehicle test model 2；Vehicle wind tunnel model coat
14 are placed in outside frame structure；Frame structure bottom is provided with pairs of model dynamic pulley 17；Pairs of model dynamic pulley
17 are connected by dynamic pulley connecting rod 18；It is provided with derailing in frame structure and embraces rail device 19；Derailing is embraced rail device 19 and is set
Setting has spacing on the outer profile of test guide rail 7 and between test guide rail 7；Model dynamic pulley 17 is stuck on test guide rail 7
And it can be on test guide rail 7 along the axial movement of test guide rail 7；Accelerator only leans against on model structure support stringer 15
And initial motion power is provided to model structure support stringer 15.
The running gear of hot-short wind tunnel model based on principle of inertia driving further includes changeover portion 21 and aperture section
20；Changeover portion 21 and aperture section 20 are that it is symmetricly set on 1 two sides of wind tunnel laboratory in pairs；Accelerating sections 12, changeover portion
21, aperture section 20, wind tunnel laboratory 1, aperture section 20, changeover portion 21 and braking section 13 are then set gradually and overall length from preceding
Degree is L；Accelerating sections 12, changeover portion 21, aperture section 20, wind tunnel laboratory 1, aperture section 20, changeover portion 21 and braking section 13
Upper surface is equipped with test guide rail 7.
The running gear of hot-short wind tunnel model based on principle of inertia driving further includes setting in test 7 bottom of guide rail
Braced frame 9.Braced frame passes through the support and holding height fixed steel construction and combine steelframe realization to structure, Gu
Steel construction is determined for supporting while guaranteeing that certain test height, combination steel construction are used to support track and accelerate dress for device
It sets, while combining steel construction and to meet test needing that disassembly and assembling combination can be carried out, and can need to carry out according to test
The installation of affiliated facility.
As shown in Figure 1 to Figure 3, vehicle test model 2 includes vehicle wind tunnel model coat 14, model structure support stringer
15, model structure support beam 16, model dynamic pulley 17, dynamic pulley connecting rod 18, derailing armful rail device 19, test mould
Type train 2 can be along test guide rail 7 successively from accelerating sections 12 to wind tunnel laboratory 1, to braking section 13 until stopping.
As shown in Fig. 2, model in wind tunnel 2 sequentially or simultaneously can pass through changeover portion 21 and aperture section from both ends accelerating sections 12
20 enter wind tunnel laboratory 1, enter braking section 13 later, and wherein braking section 13 includes test guide rail 7, braced frame 9, braking
Friction device 10, buffer stopper 8, and the braking friction device 10 is played the role of mainly slowing down by polyurethane, and between symmetrical
It is distributed away from being sequentially reduced.
As shown in figure 3, test model includes attached model of bridge etc. 11 and vehicle test model 2 in wind tunnel laboratory 1,
Wherein vehicle test model 2 includes structure member, moving component, control unit.2 structure member of vehicle test model includes vehicle
Wind tunnel model coat 14, model structure support stringer 15 and model structure support beam 16.Vehicle test model 2 moves
Component includes model dynamic pulley 17, and dynamic pulley connecting rod 18, control unit is that derailing embraces rail device 19.Such as Fig. 1 and 2 institute
Show, there are two the workbenches for intersecting relative direction respectively for the setting of vehicle test model 2, when vehicle test model 2 can one direction
Operation, can also two-way interactive operation, vehicle test model 2 can freely be detached from accelerating sections 12.When vehicle test model 2 is from acceleration
Section 12, which is freely detached from, to shuttle forward when entering wind tunnel laboratory 1 across changeover portion 21, aperture section 20, and vehicle test model 2 passes through
It interacts with braking friction device 10, realizes fast braking.
For accelerator provided by the present invention in specific works, vehicle test model 2 is located at the acceleration on test guide rail 7
The initial starting point position of section 12, high-speed servo motor 3 are located at the rear end of 12 initial position of accelerating sections, rotation belt wheel 4 and high intensity
Carousel 6 is located at the bottom of vehicle test model 2, and external tooth thrust plate 5 is close to close at model structure support stringer 15
Together, by remotely controlling the high speed rotation of high-speed servo motor 3, rotation belt wheel 4 and high-intensitive carousel 6 one are driven
Superhigh speed rotation, and by driving external tooth thrust plate 5 that the acceleration of vehicle test model 2 travels forward, vehicle test model 2 is logical
It crosses acceleration and reaches predetermined test speed, automatically disengage high-intensitive carousel 6, after vehicle test model 2 is detached from, high speed
Servo motor 3 and high-intensitive carousel 6, which slow down, to be stopped, and vehicle test model 2, which moves forward, successively passes through changeover portion
21 and aperture section 20 enter wind tunnel laboratory 1；As vehicle test model 2 passes through wind tunnel laboratory 1, into symmetrical aperture
Braking section 13 is progressed into after section 21 and changeover portion 20, contacts friction close to the polyurethane 10 in braking section 13, thus realization pair
The deceleration of vehicle test model 2, to make 2 safe buffering of vehicle test model, polyurethane 10 is designed to that spacing is successively successively decreased,
It plays and slows down until the purpose braked while deceleration.
Pilot system of the present invention has a characteristic that driving capability is strong using the principle of inertial drive test model, the time
Short, speed is fast；Driving force does not act directly on vehicle wind tunnel model, can protect test model coat during the test
Integrality, guarantee data it is true rationally effectively；Accelerated mode is easily achieved, and drive efficiency is good, being capable of short time short distance
It completes to accelerate；Train can be simulated to orbit, meet true train operating condition；Such mode is saved energy and is not produced
Raw very big noise improves test efficiency again.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
It is so possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, various embodiments of the present invention skill that it does not separate the essence of the corresponding technical solution
The range of art scheme.
Claims (10)
1. a kind of running gear of the hot-short wind tunnel model based on principle of inertia driving, it is characterised in that: described based on used
Property principle driving hot-short wind tunnel model running gear include wind tunnel laboratory (1), test guide rail (7), vehicle test
Model (2) accelerating sections (12)；The upper surface of the accelerating sections (12) and wind tunnel laboratory (1) is equipped with test guide rail (7)；Institute
It states and is provided with accelerator on accelerating sections；The accelerator only leans against on vehicle test model (2) and to vehicle test model
(2) initial motion power is provided；The end phase of the end of the accelerator and the test guide rail (7) of accelerating sections (12) upper surface
It connects；After the vehicle test model (2) obtains the initial motion power provided by accelerator, by inertia successively from accelerating sections
(12) enter wind tunnel laboratory (1).
2. the running gear of the hot-short wind tunnel model according to claim 1 based on principle of inertia driving, feature
Be: the accelerator includes high-speed servo motor (3), rotation belt wheel (4), external tooth thrust plate (5), high-intensitive rotation transmission
Band (6)；The high intensity carousel (6) is wrapped in rotation belt wheel (4)；The high-speed servo motor (3) and rotation band
(4) are taken turns to be connected and drive high-intensitive carousel (6) to rotate by rotation belt wheel (4)；One end of the external tooth thrust plate (5)
It is arranged on high-intensitive carousel (6) and is rotated synchronously with high-intensitive carousel (6), the other end is inserted into vehicle test
In model (2).
3. the running gear of the hot-short wind tunnel model according to claim 2 based on principle of inertia driving, feature
Be: the rotation belt wheel (4) is at least two；The high intensity carousel (6) is annular in shape and is supportted by rotation belt wheel (4)
Open tension；The high-speed servo motor (3) is connected with any one rotation belt wheel (4) and is driven by rotation belt wheel (4) high-intensitive
Carousel (6) rotation.
4. the running gear of the hot-short wind tunnel model according to claim 3 based on principle of inertia driving, feature
Be: the high-speed servo motor (3) is by rotating belt wheel (4) and high-intensitive carousel (6) to drive vehicle test
After model (2) provides initial motion power, test guide rail (7) of the vehicle test model (2) in accelerating sections (12) upper surface
On instantaneous velocity be not less than 100km/h.
5. the operation dress of the hot-short wind tunnel model according to claim 1 or 2 or 3 or 4 based on principle of inertia driving
It sets, it is characterised in that: the running gear of the hot-short wind tunnel model based on principle of inertia driving further includes braking section
(13)；The accelerating sections (12), wind tunnel laboratory (1) and braking section (13) are then set gradually before and total length is L；Institute
The upper surface for stating accelerating sections (12) and wind tunnel laboratory (1) is equipped with test guide rail (7)；Deceleration is provided on the braking section
Device；After the vehicle test model (2) obtains the initial motion power provided by accelerator, by inertia successively from acceleration
Section (12) enters wind tunnel laboratory (1), the finally stop motion under the action of deceleration device on braking section；The accelerating sections
Length is LAdd；The length of the braking section is LSubtract；The LAdd=LSubtract≤L。
6. the running gear of the hot-short wind tunnel model according to claim 5 based on principle of inertia driving, feature
Be: the deceleration device includes the braking friction device (10) for being placed in braking section (13) upper surface test guide rail (7)；By wind
Braking friction device (10) on the vehicle test model (2) in hole laboratory (1) and braking section (13) upper surface test guide rail (7)
Friction is braked；
The braking friction device (10) is that deceleration friction plate is formed by by polyurethane；The deceleration friction plate is arranged in pairs in
It tests on guide rail (7) braking section (13) upper surface；Vehicle test model (2) and braking section (13) by wind tunnel laboratory (1)
Deceleration friction plate friction in upper surface test guide rail (7) is braked；The braking friction device (10) and vehicle test mould
The surface that type (2) is in contact is wave-shaped.
7. the running gear of the hot-short wind tunnel model according to claim 6 based on principle of inertia driving, feature
Be: the deceleration device further includes the buffer stopper (8) for being placed in braking section (13) upper surface test guide rail (7) end.
8. the running gear of the hot-short wind tunnel model according to claim 7 based on principle of inertia driving, feature
Be: the vehicle test model (2) includes vehicle wind tunnel model coat (14), model structure support stringer (15), model knot
Structure support beam (16), model dynamic pulley (17), dynamic pulley connecting rod (18) and derailing embrace rail device (19)；The mould
Type structural support stringer (15) and model structure support beam (16) transverse and longitudinal are staggered to form the frame of vehicle test model (2)
Frame structure；The vehicle wind tunnel model coat (14) is placed in outside frame structure；The frame structure bottom is provided with pairs of
Model dynamic pulley (17)；Pairs of model dynamic pulley (17) is connected by dynamic pulley connecting rod (18)；The frame structure
On be provided with derailing embrace rail device (19)；The derailing embraces rail device (19) setting on the outer profile of test guide rail (7)
And there is spacing between test guide rail (7)；The model dynamic pulley (17) is stuck in test guide rail (7) and can be in test guide rail
(7) along the axial movement of test guide rail (7) on；The accelerator only leans against on model structure support stringer (15) and to mould
Type structural support stringer (15) provides initial motion power.
9. the running gear of the hot-short wind tunnel model according to claim 8 based on principle of inertia driving, feature
Be: the running gear of the hot-short wind tunnel model based on principle of inertia driving further includes changeover portion (21) and aperture
Section (20)；The changeover portion (21) and aperture section (20) are that it is symmetricly set on wind tunnel laboratory (1) two sides in pairs；It is described
Accelerating sections (12), changeover portion (21), aperture section (20), wind tunnel laboratory (1), aperture section (20), changeover portion (21) and deceleration
Section (13) is then set gradually before and total length is L；The accelerating sections (12), changeover portion (21), aperture section (20), wind-tunnel are real
The upper surface for testing room (1), aperture section (20), changeover portion (21) and braking section (13) is equipped with test guide rail (7).
10. the running gear of the hot-short wind tunnel model according to claim 9 based on principle of inertia driving, feature
Be: the running gear of the hot-short wind tunnel model based on principle of inertia driving further includes setting in test guide rail (7)
The braced frame (9) of bottom.
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