CN111307477A - Test bed for operation performance of suspension frame unit of medium-low speed magnetic suspension vehicle - Google Patents
Test bed for operation performance of suspension frame unit of medium-low speed magnetic suspension vehicle Download PDFInfo
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- CN111307477A CN111307477A CN202010303020.1A CN202010303020A CN111307477A CN 111307477 A CN111307477 A CN 111307477A CN 202010303020 A CN202010303020 A CN 202010303020A CN 111307477 A CN111307477 A CN 111307477A
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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
- G01M17/10—Suspensions, axles or wheels
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Abstract
A test bed for the operation performance of a suspension frame unit of a medium-low speed magnetic suspension vehicle relates to the technical field of the performance test of the suspension frame unit of the magnetic suspension vehicle and comprises an F-shaped track, a plurality of hydraulic adjusting devices, four vibration sensors and static pressure equipment, and is characterized in that the F-shaped track is composed of a plurality of sectional F-shaped tracks, the bottom of each hydraulic adjusting device is fixedly connected onto the test bed, the top of each hydraulic adjusting device is fixedly connected with the corresponding F-shaped track, and each hydraulic adjusting device is used for adjusting the height and the inclination angle of the corresponding F-shaped track; the four vibration sensors are fixedly connected to the side walls of the four suspension unit interfaces of the suspension frame unit in a one-to-one correspondence mode, and the static pressure equipment is fixedly connected with the four suspension unit interfaces and used for applying vertical pressure to the suspension frame unit. The method can simulate the track irregularity state and predict the influence of the track irregularity on the running performance of the medium-low speed magnetic levitation vehicle.
Description
Technical Field
The invention relates to the technical field of performance test of a suspension frame unit of a magnetic levitation vehicle, in particular to a suspension frame unit running performance test bed of a medium-low speed magnetic levitation vehicle.
Background
At the present stage, the performance test of the suspension frame unit 5 (as shown in fig. 1) of the medium-low speed maglev vehicle can only test the static performance of the coupling effect of the suspension frame unit 5 and the F-type track, but no test bed can simulate the influence of the test track irregularity on the running stability of the medium-low speed maglev vehicle, and the line irregularity state cannot be simulated before the online dynamic debugging of the maglev vehicle, so as to test whether the suspension control parameter setting of the vehicle is reasonable, that is, the adaptability of the medium-low speed maglev vehicle to the track irregularity state is tested.
Disclosure of Invention
The invention aims to provide a suspension frame unit running performance test bed of a medium-low speed magnetic suspension vehicle, which can simulate the condition of line irregularity before the medium-low speed magnetic suspension vehicle runs on line, test the running performance of the magnetic suspension vehicle, and adjust suspension control parameters, vehicle structures or suspension parameters according to the test result so as to improve the running comfort of the vehicle.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the test bed for the operation performance of the suspension frame unit of the medium-low speed maglev vehicle comprises an F-shaped track, a plurality of hydraulic adjusting devices, four vibration sensors and static pressure equipment, and is characterized in that the F-shaped track is composed of a plurality of sectional F-shaped tracks, the bottoms of the hydraulic adjusting devices are fixedly connected to the test bed, the tops of the hydraulic adjusting devices are fixedly connected with the F-shaped tracks, and the hydraulic adjusting devices are used for adjusting the height and the inclination angle of the F-shaped tracks; the four vibration sensors are fixedly connected to the side walls of the four suspension unit interfaces of the suspension frame unit in a one-to-one correspondence mode, and the static pressure equipment is fixedly connected with the four suspension unit interfaces and used for applying vertical pressure to the suspension frame unit.
The hydraulic adjusting device is a hydraulic jack, and the top end of a piston of the hydraulic adjusting device is fixedly connected with the F-shaped track. The static pressure equipment is a vertical actuator.
The invention has the beneficial effects that: the test bed adopts a sectional type F-shaped track, the horizontal height and the inclination angle of each section of independent F-shaped track are adjusted through a hydraulic adjusting device so as to simulate the track irregularity state, and meanwhile, the vibration condition of the area near the interface of the static pressure equipment and the suspension unit is measured through a vibration sensor so as to predict the influence of the track irregularity on the running performance of the medium-low speed magnetic suspension vehicle. According to the test result, suspension control parameters, a suspension frame structure or suspension parameters are optimally adjusted before the vehicle is formally on-line operated so as to improve the comfort of vehicle operation.
Drawings
Fig. 1 is a schematic structural diagram of a suspension frame unit of a medium-low speed magnetic suspension vehicle.
Fig. 2 is a schematic structural diagram of a suspension frame unit operation performance test bed of the low-speed magnetic suspension vehicle.
Fig. 3 is a schematic structural diagram of the assembled F-shaped rail, hydraulic adjusting device, vibration sensor and suspension unit of the present invention.
Fig. 4 is an application schematic diagram of the suspension unit operation performance test bed of the low-speed magnetic suspension vehicle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 2 to 4, the test bed for the operation performance of the suspension frame unit of the low-speed magnetic levitation vehicle comprises an F-shaped track 1, a plurality of hydraulic adjusting devices 2, four vibration sensors 3 and a static pressure device 4, wherein the F-shaped track 1 is composed of a plurality of sectional F-shaped tracks, the bottom of the hydraulic adjusting device 2 is fixedly connected to the test bed, the top of the hydraulic adjusting device 2 is fixedly connected with the F-shaped track 1, and the hydraulic adjusting device 2 is used for adjusting the height and the inclination angle of the F-shaped track 1; the four vibration sensors 3 are fixedly connected to the side walls of the four suspension unit interfaces 5-1 of the suspension frame unit 5 in a one-to-one correspondence manner, and the static pressure device 4 is fixedly connected with the four suspension unit interfaces 5-1 and used for applying vertical pressure to the suspension frame unit 5.
The hydraulic adjusting device 2 can adopt a hydraulic jack, and the top end of a piston of the hydraulic adjusting device is fixedly connected with the F-shaped track 1. The hydrostatic equipment 4 employs vertical actuators.
When the suspension frame unit operation performance test bed of the low-speed magnetic suspension vehicle works, the suspension frame bearing load is loaded on the suspension frame unit 5 through the static pressure equipment 4, the loading load of the static pressure equipment 4 is controllable, and the bearing load of the suspension frame unit 5 under different working conditions is simulated. The suspension unit 5 is suspended through the electromagnet of the suspension unit 5 and the magnetic action of the sectional F-shaped track 1, the horizontal height and the inclination angle of the sectional F-shaped track 1 are adjusted through the hydraulic adjusting device 2, the influence of the irregularity of the whole F-shaped track on the operation of the suspension unit 5 is simulated, vibration data near the fixedly connected position of the suspension unit 5 and the static pressure equipment 4 are collected through the vibration sensor 3, the vibration influence of the suspension unit 5 on a vehicle body under different working conditions and track states is simulated and predicted through the vibration data, and the running state of the vehicle is evaluated.
Claims (3)
1. The test bed for the operation performance of the suspension frame unit of the medium-low speed magnetic suspension vehicle comprises an F-shaped track (1), a plurality of hydraulic adjusting devices (2), four vibration sensors (3) and a static pressure device (4), and is characterized in that the F-shaped track (1) is composed of a plurality of sectional F-shaped tracks, the bottom of each hydraulic adjusting device (2) is fixedly connected onto the test bed, the top of each hydraulic adjusting device (2) is fixedly connected with the F-shaped track (1), and each hydraulic adjusting device (2) is used for adjusting the height and the inclination angle of the F-shaped track (1); the four vibration sensors (3) are fixedly connected to the side walls of the four suspension unit interfaces (5-1) of the suspension frame unit (5) in a one-to-one correspondence mode, and the static pressure equipment (4) is fixedly connected with the four suspension unit interfaces (5-1) and used for applying vertical pressure to the suspension frame unit (5).
2. The test bed for the operation performance of the suspension unit of the medium and low speed maglev vehicle according to claim 1, characterized in that the hydraulic adjusting device (2) is a hydraulic jack, and the top end of the piston of the hydraulic adjusting device is fixedly connected with the F-shaped track (1).
3. The test bed for the operational performance of the suspension unit of a medium-low speed magnetic levitation vehicle as recited in claim 1, wherein the hydrostatic unit (4) is a vertical actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010303020.1A CN111307477A (en) | 2020-04-17 | 2020-04-17 | Test bed for operation performance of suspension frame unit of medium-low speed magnetic suspension vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010303020.1A CN111307477A (en) | 2020-04-17 | 2020-04-17 | Test bed for operation performance of suspension frame unit of medium-low speed magnetic suspension vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111307477A true CN111307477A (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010303020.1A Pending CN111307477A (en) | 2020-04-17 | 2020-04-17 | Test bed for operation performance of suspension frame unit of medium-low speed magnetic suspension vehicle |
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| CN (1) | CN111307477A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629845A (en) * | 2020-12-21 | 2021-04-09 | 西南交通大学 | Strength test device of suspension frame framework of magnetic levitation vehicle |
| CN112731898A (en) * | 2021-03-30 | 2021-04-30 | 西南交通大学 | Indoor full-size test bed for evaluating active suspension control performance of bogie |
| CN114018607A (en) * | 2021-11-04 | 2022-02-08 | 西南交通大学 | Superconducting electromagnetic suspension test bed |
-
2020
- 2020-04-17 CN CN202010303020.1A patent/CN111307477A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629845A (en) * | 2020-12-21 | 2021-04-09 | 西南交通大学 | Strength test device of suspension frame framework of magnetic levitation vehicle |
| CN112629845B (en) * | 2020-12-21 | 2024-05-03 | 西南交通大学 | Intensity test device of magnetic levitation vehicle suspension frame |
| CN112731898A (en) * | 2021-03-30 | 2021-04-30 | 西南交通大学 | Indoor full-size test bed for evaluating active suspension control performance of bogie |
| CN114018607A (en) * | 2021-11-04 | 2022-02-08 | 西南交通大学 | Superconducting electromagnetic suspension test bed |
| CN114018607B (en) * | 2021-11-04 | 2022-08-23 | 西南交通大学 | Superconducting electromagnetic suspension test bed |
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