CN106501011B - It is a kind of to include the interior rotary drum inertia brake tester of brake-tire-ground - Google Patents
It is a kind of to include the interior rotary drum inertia brake tester of brake-tire-ground Download PDFInfo
- Publication number
- CN106501011B CN106501011B CN201611119765.2A CN201611119765A CN106501011B CN 106501011 B CN106501011 B CN 106501011B CN 201611119765 A CN201611119765 A CN 201611119765A CN 106501011 B CN106501011 B CN 106501011B
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- brake
- ground
- tire
- wheel
- inertia
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Regulating Braking Force (AREA)
- Tires In General (AREA)
Abstract
Include the interior rotary drum inertia brake tester of brake-tire-ground the present invention relates to a kind of, it include: ground base, transmission system, braking system, control system and detection system, rotating speed command is sent to PLC and adjusts speed by the revolving speed that control frequency converter adjusts the variable-frequency motor by industrial personal computer, the inertia in automobile traveling is set by inertia regulating device, wheel is set to the pressure on ground by hydraulic cylinder, the automotive wheel in traveling is braked by brake actuator, vehicle braking parameter is obtained by respective sensor, solves the technical issues of existing test device can not reflect automobile true braking process.
Description
Technical field
The present invention relates to vehicle braking performances the field of test technology, in particular to a kind of to include brake-tire-ground
Interior rotary drum inertia brake tester.
Background technique
Automobile brake perfrmance is directly related to traffic safety, carries out brake-test of brake disc frictional behaviour, tire-ground
The test of face frictional behaviour, brake-tire-ground frictional behaviour test are of great significance for improving braking performance of vehicle.
Automobile brake test mostly uses drum reaction braking checkout stand or simulative automobile brake tester to carry out at present, with
It is lower respectively for drum reaction braking checkout stand or simulative automobile brake tester come the drawbacks of being specifically described the prior art.
When using drum reaction braking checkout stand automobile is tested when, automotive wheel need to be stopped at roller it
On, roller is driven by motor and then drags vehicle wheel rotation.Under in the braking state, roller applies one and wheel braking force to wheel
The contrary torque of square evaluates braking system performance by the brake parameters of wheel in acquisition braking process.Roller counter-force
The usual revolving speed of formula brake tester is lower, and flywheel is equipped on part test platform rotary drum but its inertia provided is separated with car body,
Can not translation inertia of the real simulation vehicle when road high speed is braked, and drum surface bill of materials one can not reflect automobile
The actual contact relationship of tire and ground, such usual testing stand revolving speed are lower than 10km/h, not can be carried out high-seed-brake testing.
Simulative automobile brake tester carries out retardation test, but the dress by adding flywheel simulated automotive inertia in axletree
The interactively being not directed between tire and ground is set, and inertia is made of one with wheel shaft and adds with the inertia of practical automobile brake
Load is not inconsistent, and can not reflect the true braking process of automobile yet.In addition, German BAST is public in the research of tire and ground effects
Take charge of exploitation tyre noise testing platform analog difference road conditions under tire and generate noise relationship, but be not directed to brake with
Braking ability between tire-ground；Chang An University's master thesis " Tire experiment platform structure design and analysis " establishes outer
Rotary drum simulates tire and ground contact model, has studied the frictional noise between tire and ground, but be not directed to automotive brake with
And system inertia adjusting etc., it less can be carried out the braking ability test under different road conditions.
Summary of the invention
The purpose of the present invention is to provide a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground,
Solves the technical issues of true braking process that existing test device can not reflect automobile.
To solve the above-mentioned problems, include the interior rotary drum inertia system of brake-tire-ground the present invention provides a kind of
Dynamic test platform, comprising:
Ground base, the ground base include ground, bracket and earth material structure, and the earth material structure can be more
It changes, recessed ground cavity on the ground, across on the ground cavity, the earth material structure is embedded the bracket
In the ground cavity, the top of the earth material structure is equipped with sparge pipe, and the sparge pipe can be to the earth material
Structure watering；
Transmission system, the transmission system include that variable-frequency motor, speed transmission device, inertia regulating device and two are symmetrical
The wheel of arrangement, the variable-frequency motor are arranged on bracket, and the wheel is contacted with the earth material structure, the variable-frequency electric
Machine is connect with the speed transmission device and the inertia regulating device respectively, the wheel by the speed transmission device with
The variable-frequency motor connection；
Braking system, the braking system include hydraulic station and brake actuator, and the hydraulic station passes through brake
Device is connect with the wheel braking, and the brake actuator is also connect with the speed transmission device；
Control system, the control system include control cabinet and industrial personal computer, and the upper surface of ground is arranged in the industrial personal computer
On, control cabinet setting on the bracket, is provided with PLC and frequency converter on the control cabinet, the frequency converter respectively with
The variable-frequency motor is connected with the PLC, and the PLC and the industrial personal computer communicate to connect；
Detection system, the detection system include vehicle speed sensor, two braking force sensors, two wheel speed sensors,
The braking force sensor and the wheel speed sensors are connect with the brake actuator, the vehicle speed sensor with it is described
The connection of speed transmission device；
Rotating speed command is sent to the PLC and adjusts the variable-frequency motor by controlling the frequency converter by the industrial personal computer
Revolving speed so that adjust speed, by the inertia regulating device set automobile advance in inertia, vehicle is set by hydraulic cylinder
The pressure to ground is taken turns, the automotive wheel in traveling is braked by brake actuator, is obtained by respective sensor
Vehicle braking parameter.
Include the interior rotary drum inertia braking of brake-tire-ground according to a kind of described in the application preferred embodiment
Testing stand, the speed transmission device include upper reducer, upper shaft, lower rotary shaft, hydraulic cylinder, pivoted arm, telescopic oil tube, flexible half
Axis, spring structure, upper reducer setting on the bracket, the output shaft of the variable-frequency motor by belt pulley with it is described
The input axis connection of upper reducer, the top of the upper shaft are passed through in the upper reducer, and the upper shaft penetrates the branch
Frame extends in the ground cavity, and tapping of the telescopic oil tube in the upper shaft lower part is drawn, the upper shaft bottom
End is connect by shaft coupling with the lower rotary shaft, and the pivoted arm is vertically and fixedly arranged at the top of the lower rotary shaft, the pivoted arm
For hollow structure, the flexible semiaxis is nested on the pivoted arm, and the hydraulic cylinder is arranged below the pivoted arm, described flexible
One spring structure is set below semiaxis, and the piston rod of the hydraulic cylinder is contacted with the spring in the spring structure, the wheel
It is mounted on flexible half the tip of the axis.
Include the interior rotary drum inertia braking of brake-tire-ground according to a kind of described in the application preferred embodiment
Testing stand, the inertia regulating device include electromagnetic clutch and inertial flywheel, and the lower part of the lower rotary shaft, which is passed through, slows down
In device, the inertial flywheel is mounted on the output shaft of the lower retarder, and the electromagnetic clutch setting flies in the inertia
Between wheel and the output shaft of the lower retarder.
Include the interior rotary drum inertia braking of brake-tire-ground according to a kind of described in the application preferred embodiment
The output shaft of testing stand, the lower retarder is parallel with bracket.
Include the interior rotary drum inertia braking of brake-tire-ground according to a kind of described in the application preferred embodiment
Testing stand, the bottom end of the lower rotary shaft are connect with the bearing for being mounted on ground cavity lower surface.
Include the interior rotary drum inertia braking of brake-tire-ground according to a kind of described in the application preferred embodiment
Testing stand, the brake actuator include rotary joint, hydraulic station, brake pipe, brake and brake disc, and the rotation connects
The top of the upper shaft is arranged in head, and the hydraulic station is arranged on the bracket, the rotary joint and the hydraulic station
Connection, tapping of the brake pipe in the upper shaft lower part are drawn, and the wheel shaft of the wheel is arranged in the brake disc
On, the brake is arranged on the flexible semiaxis, and the tire of the wheel is contacted with the earth material structure.
Include the interior rotary drum inertia braking of brake-tire-ground according to a kind of described in the application preferred embodiment
Testing stand, the vehicle speed sensor are arranged on the input shaft of the upper reducer, the braking force sensor and the wheel speed
Sensor is arranged on the brake.
Include the interior rotary drum inertia braking of brake-tire-ground according to a kind of described in the application preferred embodiment
Testing stand, the upper surface of the ground set a draining pump, and ground cavity bottom region is equipped with catch basin, the catch basin bottom
Face is equipped with drainpipe, and the drainpipe is connect with the draining pump.
Include the interior rotary drum inertia braking of brake-tire-ground according to a kind of described in the application preferred embodiment
Testing stand, the ground cavity are cylinder, and around the upper end of ground cavity one week, the entrance of the sparge pipe connect the sparge pipe
Running water pipe.
Include the interior rotary drum inertia braking of brake-tire-ground according to a kind of described in the application preferred embodiment
Testing stand, the earth material structure include four pieces of 90 ° of arc material blocks, which is fixed on describedly
On the inner wall of base cavity.
Compared with prior art, there are following technical effects by the present invention:
The present invention provides a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, adjustable tire
The practical inertia of pressure and vehicle to ground；Brake-brake disc, tire-ground, system can be carried out by obtaining sensing data
The development test of frictional behaviour between dynamic device-tire-ground；By controlling the amount of water sprayed analog automobile of sparge pipe in DIFFERENT WET
Braking conditions under slippage degree；By replacing earth material analog automobile in the braking conditions of Different Ground；Using ground sky
Chamber increases the stability and safety of system as interior rotary drum ground, can carry out a variety of high speed braking experiments；Reduce vapour
The cost of vehicle actual road test improves test safety, can more accurately reflect that tire is to the work on ground in Motor Vehicle Braking Procedure
Firmly and influence of the vehicle inertia to braking, it is of great significance to research automobile synthetical restraint performance
Detailed description of the invention
Fig. 1 is overall structure main view of the present invention；
Fig. 2 is overall structure top view of the present invention；
Fig. 3 is flexible semiaxis and pivoted arm installation relation schematic diagram；
Fig. 4 is earth material assembly schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, lifts a specific embodiment and be described in detail.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, includes the interior rotary drum inertia of brake-tire-ground the present invention provides a kind of
Brake tester, including ground 1, draining pump 2, bracket 3, sparge pipe 4, earth material structure 5, control cabinet 6, frequency converter 61, PLC
62, variable-frequency motor 7, pivoted arm 8, vehicle speed sensor 9, upper reducer 10, rotary joint 11, upper shaft 12, shaft coupling 13, flexible oil
Pipe 14, hydraulic station 15,18, two, the brake braking force sensor 19, two of spring structure 17, two of brake pipe 16, two
Wheel speed sensors 20, the brake disc 22, two of industrial personal computer 21, two wheel being arranged symmetrically 23, flexible semiaxis 24, electromagnetic clutch
25, inertial flywheel 26, hydraulic cylinder 27, lower retarder 28, lower rotary shaft 29, catch basin 30, locating clip 31, drainpipe 32, on ground 1
Recessed ground cavity 33, draining pump 2 and bracket 3 are mounted on the upper surface of ground 1, bracket 3 across on ground cavity 33,
3 upper surface of bracket is equipped with control cabinet 6, variable-frequency motor 7, vehicle speed sensor 9, upper reducer 10, hydraulic station 15, in control cabinet 6
Frequency converter 61, PLC 62 are installed, frequency converter 61 is connect with PLC62 with variable-frequency motor 7 respectively, and 7 output shaft of variable-frequency motor passes through
Belt pulley is connected with 10 input shaft of upper reducer, and upper shaft 12 extends in the cavity of ground 1 through bracket 3, and upper shaft 12 is
Hollow structure and top are equipped with rotary joint 11, and telescopic oil tube 14 draws in the aperture of 12 lower part of upper shaft with brake pipe 16
Out, 12 bottom end of upper shaft is connected by shaft coupling 13 with lower rotary shaft 29, and 1 cavity top of ground is equipped with sparge pipe 4, and ground 1 is empty
Cavity wall is embedded with earth material structure 5, and 33 inner wall lower of ground cavity is equipped with positioning card 31, and positioning card 31 is by earth material structure
5 are fixed on the inner wall of ground cavity 33, and 29 upper vertical of lower rotary shaft is equipped with hollow pivoted arm 8, and pivoted arm 8 is with lower rotary shaft 29 1
Rotation is played, flexible semiaxis 24 is nested in 8 hole of pivoted arm, and pivoted arm 8 is mounted below hydraulic cylinder 27, below 24 both ends of semiaxis of stretching
It is separately installed with spring structure 17, spring structure 17 includes shell 171 and spring 172, and spring 172 is arranged in shell 171, shell
Body 171 it is open at one end, this hydraulic cylinder 27 of hydraulic cylinder 27(includes two piston rods 271, this two piston rods 271 are right respectively
The spring 172 of left and right spring structure 17 generates active force) piston rod 271 stretched in shell 171 by the opening of shell 171
And contacted with spring 172, two ends of flexible semiaxis 24 are separately installed with wheel 23, and two brake discs 22 are separately mounted to a vehicle
231 on the wheel shaft of wheel 23, two brakes 18 are mounted on the both ends of flexible semiaxis 24, two braking force sensors 19 and two wheels
Fast sensor 20 is separately mounted on a brake 18, and the tire 232 of two wheels 23 is contacted with earth material structure 5 respectively,
29 lower part of lower rotary shaft is passed through lower retarder 28, and inertial flywheel 26 is mounted on lower 28 output shaft of retarder, and inertial flywheel 26 is under
Electromagnetic clutch 25 is installed, 1 cavity lower surface centre bit of ground is protruded into the bottom end of lower rotary shaft 29 between 28 output shaft of retarder
In the bearing set, 1 cavity floor of ground is equipped with catch basin 30, and 30 bottom surface of catch basin is equipped with drainpipe 32.
As shown in Fig. 2, 1 cavity of ground is circle, around 1 cavity upper end of ground one week, 4 entrance of sparge pipe was connected to sparge pipe 4
Water, it is parallel with bracket 3 that inertial flywheel 26 gets lower 28 output shaft of retarder continuously, control cabinet 6, variable-frequency motor 7, vehicle speed sensor
9, upper reducer 10, hydraulic station 14 are mounted on the center line of bracket 3.
As shown in figure 4, earth material structure 5 is made of four pieces of 90 ° of arc material blocks splicings, and it is fixed on ground cavity 33
Inner wall, which can arbitrarily change fastly, be easily installed.
Specific work process of the present invention is as follows:
Industrial personal computer 21 is used as host computer, and PLC62 is used as slave computer, host computer and slave computer be in communication with each other to whole system into
Row control and signal acquisition, the pressure-regulating valve by adjusting hydraulic station 15 changes output oil pressure, and then changes hydraulic cylinder 27
Output pressure, piston rod 271 set tire 232 to the pressure on ground by compressed spring 172；Industrial personal computer 21 orders revolving speed
The revolving speed for being sent to PLC 62 and adjusting variable-frequency motor 7 by control frequency converter 61 is enabled, and then the revolving speed for adjusting pivoted arm 8 is set
Speed；The flywheel mass of access system is adjusted by control electromagnetic clutch 25, and then sets the inertia in automobile traveling；Pass through
The braking electromagnetic valve of control hydraulic station 15 brakes the automobile in traveling, and PLC 62 acquires vehicle speed sensor 9, brake force passes
The numerical value of sensor 19 and wheel speed sensors 20, and then it is sent to computer, carry out the calculating of a variety of brake parameters, earth material knot
5 replaceable of structure, i.e. analog tire 232 unlike material ground brake condition, sparge pipe 4 can to the ground material sprinkle water, i.e.,
By drainpipe 32 1 cavity of ground is discharged in ponding in catch basin 30 by the ground of analog DIFFERENT WET slippage degree, draining pump 2.
Disclosed above is only the specific embodiment of the application, and however, this application is not limited to this, any this field
Technical staff can think variation, should all fall in the protection domain of the application.
Claims (10)
1. a kind of include the interior rotary drum inertia brake tester of brake-tire-ground characterized by comprising
Ground base, the ground base include ground, bracket and earth material structure, and the earth material structure is replaceable,
Recessed ground cavity on the ground, across on the ground cavity, the earth material structure is embedded the bracket
In the ground cavity, the top of the earth material structure is equipped with sparge pipe, and the sparge pipe can be to the earth material knot
Structure watering；
Transmission system, the transmission system include that variable-frequency motor, speed transmission device, inertia regulating device and two are arranged symmetrically
Wheel, the variable-frequency motor is arranged on bracket, and the wheel is contacted with the earth material structure, the variable-frequency motor and
Speed transmission device connection, the variable-frequency motor by the speed transmission device respectively with the wheel and the inertia
Regulating device connection；
Braking system, the braking system include hydraulic station and brake actuator, and the hydraulic station passes through brake actuator
It is connect with the wheel braking, the brake actuator is also connect with the speed transmission device；
Control system, the control system include control cabinet and industrial personal computer, and the industrial personal computer is arranged on the upper surface of ground, institute
State control cabinet setting on the bracket, be provided with PLC and frequency converter on the control cabinet, the frequency converter respectively with the change
Frequency motor is connected with the PLC, and the PLC and the industrial personal computer communicate to connect；
Detection system, the detection system include vehicle speed sensor, two braking force sensors, two wheel speed sensors, described
Braking force sensor and the wheel speed sensors are connect with the brake actuator, the vehicle speed sensor and the speed
Transmission device connection；
Rotating speed command is sent to the PLC and adjusts turning for the variable-frequency motor by controlling the frequency converter by the industrial personal computer
Speed and then adjusting speed set the inertia in automobile traveling by the inertia regulating device, set wheel pair by hydraulic cylinder
The pressure on ground brakes the automotive wheel in traveling by brake actuator, obtains vehicle by respective sensor
Brake parameters.
2. it is as described in claim 1 a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, it is special
Sign is that the speed transmission device includes upper reducer, upper shaft, lower rotary shaft, hydraulic cylinder, pivoted arm, telescopic oil tube, flexible half
Axis, spring structure, upper reducer setting on the bracket, the output shaft of the variable-frequency motor by belt pulley with it is described
The input axis connection of upper reducer, the top of the upper shaft are passed through in the upper reducer, and the upper shaft penetrates the branch
Frame extends in the ground cavity, and tapping of the telescopic oil tube in the upper shaft lower part is drawn, the upper shaft bottom
End is connect by shaft coupling with the lower rotary shaft, and the pivoted arm is vertically and fixedly arranged at the top of the lower rotary shaft, the pivoted arm
For hollow structure, the flexible semiaxis is nested on the pivoted arm, and the hydraulic cylinder is arranged below the pivoted arm, described flexible
One spring structure is set below semiaxis, and the piston rod of the hydraulic cylinder is contacted with the spring in the spring structure, the wheel
It is mounted on flexible half the tip of the axis.
3. it is as claimed in claim 2 a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, it is special
Sign is that the inertia regulating device includes electromagnetic clutch and inertial flywheel, and the lower part of the lower rotary shaft, which is passed through, slows down
In device, the inertial flywheel is mounted on the output shaft of the lower retarder, and the electromagnetic clutch setting flies in the inertia
Between wheel and the output shaft of the lower retarder.
4. it is as claimed in claim 3 a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, it is special
Sign is that the output shaft of the lower retarder is parallel with bracket.
5. it is as claimed in claim 2 a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, it is special
Sign is that the bottom end of the lower rotary shaft is connect with the bearing for being mounted on ground cavity lower surface.
6. it is as claimed in claim 3 a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, it is special
Sign is that the brake actuator includes rotary joint, hydraulic station, brake pipe, brake and brake disc, and the rotation connects
The top of the upper shaft is arranged in head, and the hydraulic station is arranged on the bracket, the rotary joint and the hydraulic station
Connection, tapping of the brake pipe in the upper shaft lower part are drawn, and the wheel shaft of the wheel is arranged in the brake disc
On, the brake is arranged on the flexible semiaxis, and the tire of the wheel is contacted with the earth material structure.
7. it is as claimed in claim 6 a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, it is special
Sign is that the vehicle speed sensor is arranged on the input shaft of the upper reducer, the braking force sensor and the wheel speed
Sensor is arranged on the brake.
8. it is as described in claim 1 a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, it is special
Sign is that the upper surface of the ground sets a draining pump, and ground cavity bottom region is equipped with catch basin, the catch basin bottom
Face is equipped with drainpipe, and the drainpipe is connect with the draining pump.
9. it is as described in claim 1 a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, it is special
Sign is, the ground cavity is cylinder, and around the upper end of ground cavity one week, the entrance of the sparge pipe connect the sparge pipe
Running water pipe.
10. it is as claimed in claim 9 a kind of comprising the interior rotary drum inertia brake tester of brake-tire-ground, it is special
Sign is that the earth material structure includes four pieces of 90 ° of arc material blocks, which is fixed on describedly
On the inner wall of base cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119765.2A CN106501011B (en) | 2016-12-08 | 2016-12-08 | It is a kind of to include the interior rotary drum inertia brake tester of brake-tire-ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611119765.2A CN106501011B (en) | 2016-12-08 | 2016-12-08 | It is a kind of to include the interior rotary drum inertia brake tester of brake-tire-ground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106501011A CN106501011A (en) | 2017-03-15 |
| CN106501011B true CN106501011B (en) | 2019-04-16 |
Family
ID=58330324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611119765.2A Expired - Fee Related CN106501011B (en) | 2016-12-08 | 2016-12-08 | It is a kind of to include the interior rotary drum inertia brake tester of brake-tire-ground |
Country Status (1)
| Country | Link |
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| CN (1) | CN106501011B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000931B (en) * | 2018-05-28 | 2020-08-28 | 日照人和制动系统股份有限公司 | Automobile brake detection platform |
| IT201800010155A1 (en) * | 2018-11-08 | 2020-05-08 | Bridgestone Europe Nv Sa | UNIT AND TEST METHOD TO OPTICALLY ACQUIRE A GROUND FOOTPRINT OR ANALOGUE FEATURE OF A TIRE |
| CN111766040B (en) * | 2020-08-05 | 2022-08-05 | 中南大学 | High-speed train dynamic model test equipment |
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| CN206208539U (en) * | 2016-12-08 | 2017-05-31 | 中国矿业大学 | A kind of interior rotary drum inertia brake tester comprising brake tire ground |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3905475C2 (en) * | 1989-02-22 | 1994-09-08 | Hofmann Gmbh & Co Kg Maschinen | Procedure for testing pneumatic tires |
| JP2007078667A (en) * | 2005-09-16 | 2007-03-29 | Sumitomo Rubber Ind Ltd | Ice test device for tire, and method of evaluating on-ice performance of tire |
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| DE19804611A1 (en) * | 1998-02-06 | 1999-08-19 | Continental Ag | Device for investigating loss of frictional power, for checking out aquaplaning, braking conditions and rolling |
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| CN105806633A (en) * | 2016-05-13 | 2016-07-27 | 北京理工大学 | Road simulation testbed for wheel |
| CN206208539U (en) * | 2016-12-08 | 2017-05-31 | 中国矿业大学 | A kind of interior rotary drum inertia brake tester comprising brake tire ground |
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| ABS动态模拟实验台基础研究及结构设计;黄磊;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20090415(第4期);第C035-36页 * |
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Granted publication date: 20190416 Termination date: 20211208 |