CN-122020833-A - Method and device for designing eddy current brake plate, computer equipment and storage medium

CN122020833ACN 122020833 ACN122020833 ACN 122020833ACN-122020833-A

Abstract

The invention provides a design method, a device, computer equipment and a storage medium of an eddy current braking plate, wherein the method comprises the steps of determining a braking acceleration index based on a braking requirement of a magnetic suspension propulsion system, wherein the braking requirement comprises an operating speed and a braking time; the method comprises the steps of calculating target braking force corresponding to a braking acceleration index, simulating braking force curves under different plate widths through electromagnetic simulation software, wherein the braking force curves are the changing curves of braking force along with speed, selecting an optimal braking force curve from the braking force curves according to the target braking force, and designing an eddy current braking plate based on the plate width corresponding to the optimal braking force curve. According to the technical scheme provided by the invention, braking characteristics under different plate widths can be rapidly and accurately known by simulating braking force curves under different plate widths, so that an eddy current braking plate meeting braking requirements is rapidly designed, and braking performance is improved.

Inventors

WANG YIYU
GAO TIANYU
ZHANG ZHIHUA
HU DAOYU
JIA SHIQI

Assignees

北京特种机械研究所

Dates

Publication Date: 20260512
Application Date: 20251213

Claims (10)

1. A method of designing an eddy current brake plate, the method comprising: Determining a braking acceleration index based on a braking requirement of the magnetic suspension propulsion system, wherein the braking requirement comprises an operating speed and a braking time; calculating a target braking force corresponding to the braking acceleration index; Simulating braking force curves under different widths by electromagnetic simulation software, wherein the braking force curves are the variation curves of braking force along with speed; Selecting an optimal braking force curve from the braking force curves according to the target braking force; and designing the eddy current brake plate based on the plate width corresponding to the optimal braking force curve.
2. The method of claim 1, wherein said selecting an optimal braking force profile from said braking force profiles based on said target braking force comprises: Based on the braking force curve, inquiring corresponding braking force according to the running speed of the vehicle; and taking a braking force curve corresponding to the braking force which is smaller than the target braking force and closest to the target braking force as an optimal braking force curve.
3. The method of claim 1, wherein the eddy current braking plate comprises a trapezoidal plate and a plurality of rectangular plates, wherein the trapezoidal plate and the plurality of rectangular plates are on the same central axis, the plurality of rectangular plates are sequentially connected to one side of the largest plate width of the trapezoidal plate, and the plate widths of the plurality of rectangular plates are sequentially increased.
4. A method according to claim 3, wherein as the plate width increases, the effective area of action between the vehicle magnetic field and the eddy current brake plate increases, the eddy current strength increases, and the braking force correspondingly increases.
5. A method according to claim 3, wherein the widths of the rectangular plates that are joined adjacently after the trapezoidal plate coincide with the maximum widths of the trapezoidal plates.
6. A method according to claim 3, wherein the eddy current braking plates are arranged in a direction parallel to the direction of travel of the vehicle, passing sequentially over the trapezoidal plate and the plurality of rectangular plates as the vehicle passes over the eddy current braking plates.
7. An eddy current brake plate design apparatus, said apparatus comprising: The determining module is used for determining a braking acceleration index based on the braking requirement of the magnetic suspension propulsion system, wherein the braking requirement comprises an operating speed and a braking time; The calculation module is used for calculating a target braking force corresponding to the braking acceleration index; The simulation module is used for simulating braking force curves under different plate widths through electromagnetic simulation software, wherein the braking force curves are the variation curves of braking force along with speed; the selecting module is used for selecting an optimal braking force curve from the braking force curves according to the target braking force; And the design module is used for designing the eddy current brake plate based on the plate width corresponding to the optimal braking force curve.
8. The apparatus of claim 7, wherein the means for selecting comprises: the inquiring submodule is used for inquiring corresponding braking force according to the running speed of the vehicle based on the braking force curve; and selecting a submodule, namely taking a braking force curve corresponding to the braking force which is smaller than the target braking force and closest to the target braking force as an optimal braking force curve.
9. A computer device, characterized in that it comprises one or more processors, a memory, and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions, which when executed by the computer device, cause the computer device to perform the eddy current brake plate design method of any one of claims 1 to 6.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the computer-readable storage medium is controlled to execute the eddy current brake plate design method as claimed in any one of claims 1 to 6 when the program is run.

Description

Method and device for designing eddy current brake plate, computer equipment and storage medium Technical Field The invention relates to the technical field of magnetic suspension, in particular to a method and a device for designing an eddy current braking plate, computer equipment and a storage medium. Background The super-high-speed superconducting electric suspension system has the characteristics of high thrust, low loss, high power density, high power factor and the like, and has wide application scenes in super-high-speed magnetic suspension traffic systems and aerospace electromagnetic emission systems. Meanwhile, the design of the eddy current brake plate is more strict. When the plate width is designed to be too large, the cost is obviously increased, but the braking performance is not obviously improved, and the accurate design of the plate width cannot be realized, so that the braking performance is poor. Disclosure of Invention In view of the above problems, embodiments of the present invention provide a method, an apparatus, a computer device, and a storage medium for designing an eddy current brake plate, so as to solve the problem that in the prior art, accurate design of a plate width cannot be achieved, resulting in poor braking performance. In a first aspect, an embodiment of the present invention provides a method for designing an eddy current brake plate, the method including: Determining a braking acceleration index based on a braking requirement of the magnetic suspension propulsion system, wherein the braking requirement comprises an operating speed and a braking time; calculating a target braking force corresponding to the braking acceleration index; Simulating braking force curves under different widths by electromagnetic simulation software, wherein the braking force curves are the variation curves of braking force along with speed; Selecting an optimal braking force curve from the braking force curves according to the target braking force; and designing the eddy current brake plate based on the plate width corresponding to the optimal braking force curve. In one possible implementation manner, the selecting an optimal braking force curve from the braking force curves according to the target braking force includes: Based on the braking force curve, inquiring corresponding braking force according to the running speed of the vehicle; and taking a braking force curve corresponding to the braking force which is smaller than the target braking force and closest to the target braking force as an optimal braking force curve. In one possible implementation manner, the vortex brake plate comprises a trapezoid plate and a plurality of rectangular plates, wherein the trapezoid plate and the rectangular plates are positioned on the same central axis, one side of the maximum plate width of the trapezoid plate is sequentially connected with the rectangular plates, and the plate widths of the rectangular plates are sequentially increased. In one possible implementation, as the plate width increases, the effective area of action between the vehicle magnetic field and the eddy current brake plate increases, the eddy current strength increases, and the braking force correspondingly increases. In one possible implementation, the widths of the rectangular plates that are adjacently joined after the trapezoidal plate coincide with the maximum widths of the trapezoidal plates. In one possible implementation, the direction of arrangement of the eddy current braking plates is parallel to the direction of travel of the vehicle, passing sequentially over the trapezoidal plate and the plurality of rectangular plates as the vehicle passes over the eddy current braking plates. In a second aspect, embodiments of the present invention provide an eddy current brake plate design apparatus comprising: The determining module is used for determining a braking acceleration index based on the braking requirement of the magnetic suspension propulsion system, wherein the braking requirement comprises an operating speed and a braking time; The calculation module is used for calculating a target braking force corresponding to the braking acceleration index; The simulation module is used for simulating braking force curves under different plate widths through electromagnetic simulation software, wherein the braking force curves are the variation curves of braking force along with speed; the selecting module is used for selecting an optimal braking force curve from the braking force curves according to the target braking force; And the design module is used for designing the eddy current brake plate based on the plate width corresponding to the optimal braking force curve. In one possible implementation manner, the selecting module includes: the inquiring submodule is used for inquiring corresponding braking force according to the running speed of the vehicle based on the braking force curve; and selecting a submodule, name