CN110091883B - High-temperature superconductive maglev vehicle body - Google Patents
High-temperature superconductive maglev vehicle body Download PDFInfo
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- CN110091883B CN110091883B CN201910436418.XA CN201910436418A CN110091883B CN 110091883 B CN110091883 B CN 110091883B CN 201910436418 A CN201910436418 A CN 201910436418A CN 110091883 B CN110091883 B CN 110091883B
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- beams
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- limiting
- vehicle body
- bottom plate
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000005339 levitation Methods 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000006698 induction Effects 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000005484 gravity Effects 0.000 abstract description 8
- 239000000725 suspension Substances 0.000 description 5
- 239000002887 superconductor Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/03—Electric propulsion by linear motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
The invention relates to a high-temperature superconductive maglev vehicle body, which comprises a bottom plate structure and two supporting tables, wherein the two supporting tables are arranged on the bottom plate structure at intervals and divide the bottom plate structure into a front section, a middle section and a rear section; the supporting table is of a hollow cuboid structure, and the inside of the supporting table is used for installing a dewar and a travelling mechanism of a magnetic levitation vehicle. According to the invention, the supporting table for mounting the Dewar and the magnetic levitation train shape moving mechanism is arranged on the bottom plate structure, so that the center of gravity of the whole train is lowered, and the running stability of the train is improved.
Description
Technical Field
The invention relates to the technical field of high-temperature superconductive maglev vehicles, in particular to a high-temperature superconductive maglev vehicle body.
Background
The countries of the world that successfully develop high temperature superconducting maglev trains currently include China, germany, brazil, russia and the like. The 'super maglev' vehicle developed by southwest traffic university utilizes a block material array in four low-temperature holding containers to provide levitation force and guiding force required in the running process of a train, the running part structure of the train is that the four low-temperature holding containers are divided into a front group and a rear group which are positioned at four corners of the magnetic levitation vehicle, each group of low-temperature holding containers are connected by a shaft bridge, the floor of the vehicle is a plane, the whole plane is positioned above the four low-temperature holding containers, and thus, the height of the floor in the vehicle from a track is as follows: the cryostat itself is high plus its levitation height and levitation frame height. The height of the floor in the vehicle from the rail surface is higher, which is unfavorable for passengers to get on or off the vehicle, and the stability of the running of the vehicle is also unfavorable for because of the higher gravity center.
The entire vehicle floor is also located above the cryostat, as is the "Maglev-Cobra" vehicle developed by the university of federal, about heat in brazil.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the high-temperature superconductive maglev vehicle body with low gravity center and good stability.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the high-temperature superconductive maglev vehicle body comprises a bottom plate structure and two supporting tables, wherein the two supporting tables are arranged on the bottom plate structure at intervals and divide the bottom plate structure into a front section, a middle section and a rear section; the supporting table is of a hollow cuboid structure, and the inside of the supporting table is used for installing a dewar and a travelling mechanism of a magnetic levitation vehicle.
Further, the floor structure comprises a bottom frame, wherein the bottom frame comprises a plurality of longitudinal beams which are arranged in parallel and a plurality of transverse beams which are positioned below the longitudinal beams and are mutually perpendicular to the longitudinal beams, and the longitudinal beams are positioned on the same horizontal plane.
Further, the supporting table comprises a plurality of supporting rods which are vertically arranged and a plurality of connecting rods which are horizontally arranged, the plurality of supporting rods are transversely arranged in two rows to respectively form the front side surface and the rear side surface of the supporting table, and the bottoms of the plurality of supporting rods are respectively fixedly connected with the longitudinal beams;
the plurality of connecting rods are positioned at the tops of the plurality of supporting rods, the two ends of each connecting rod are respectively fixedly connected with the tops of the two supporting rods corresponding to each other in the front side surface and the rear side surface of the supporting table, and the plurality of connecting rods form the top surface of the supporting table.
Further, a plurality of reinforcing ribs are respectively arranged on the outer sides of the front side and the rear side of the supporting table, the reinforcing ribs are obliquely arranged, one end of each reinforcing rib is fixedly connected with the middle part of the supporting rod, and the other end of each reinforcing rib is fixedly connected with a longitudinal beam connected with the supporting rod.
Further, the plurality of longitudinal beams comprise two limiting beams and a plurality of side longitudinal beams, the two limiting beams are positioned in the middle and are symmetrical with respect to the central line of the vehicle body, the plurality of side longitudinal beams are respectively positioned at the outer sides of the two limiting beams, and the plurality of cross beams are disconnected between the two limiting beams;
a plurality of short cross beams are arranged between the two limiting beams at a transverse interval, the short cross beams and the two limiting beams are positioned on the same horizontal plane, and a linear motor induction plate is fixedly arranged on the lower surface of the short cross beams.
Further, rubber vibration damping sheets are arranged between the short cross beams and the linear motor induction plate, and the thickness of the rubber vibration damping sheets is larger than that of the cross beams.
Further, under the two supporting tables, the outer side edges of the two limiting beams are respectively provided with a limiting rubber pile, and the limiting rubber piles are fixedly connected with the limiting beams through rubber pile mounting holes on the limiting beams.
Further, a side plate is arranged outside one side of each of the two support tables adjacent to the middle-section bottom plate structure, the side plates are fixedly connected with the support rods on the side, and a liquid nitrogen filling port is formed in the middle of each side plate.
Further, the bottom frame further comprises a plurality of boundary connecting beams, wherein the boundary connecting beams and the longitudinal beams are positioned on the same horizontal plane, and the front end parts and the rear end parts of the longitudinal beams are respectively connected into a whole.
Further, a plurality of shell mounting holes are respectively arranged on the boundary connecting beams and the longitudinal beams positioned on the two sides.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the supporting table for mounting the Dewar and the magnetic levitation vehicle shape moving mechanism is arranged on the bottom plate structure, so that the center of gravity of the whole vehicle is lowered, the running stability of the vehicle is improved, the bottom plate is lowered, and passengers can get on or off the vehicle conveniently.
Drawings
FIG. 1 is a schematic view of a high temperature superconductive maglev vehicle body according to one embodiment of the present invention;
FIG. 2 is a side view of a high temperature superconducting maglev vehicle body according to an embodiment of the present invention;
fig. 3 is a top view of a high temperature superconducting maglev vehicle body according to an embodiment of the present invention.
In the figure:
11-limit beams, 12-side stringers, 13-cross beams, 14-short cross beams, 15-boundary connecting beams, 16-car shell mounting holes, 17-rubber pile mounting holes, 21-support rods, 22-connecting rods, 23-reinforcing ribs, 24-side plates, 25-liquid nitrogen filling ports, 26-support platform plates, 27-shape-moving mechanism mounting holes, 28-through holes and 29-transverse reinforcing rods.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment relates to a high-temperature superconductive maglev vehicle body, which comprises a bottom plate structure and two supporting tables, wherein the two supporting tables are arranged on the bottom plate structure at intervals and divide the bottom plate structure into a front section, a middle section and a rear section; the supporting table is of a hollow cuboid structure, and the inside of the supporting table is used for installing a dewar and a travelling mechanism of a magnetic levitation vehicle.
The supporting platform for installing the Dewar and the magnetic levitation train shape moving mechanism is arranged on the bottom plate structure, the center of gravity of the whole train is reduced, the running stability of the train is improved, the bottom plate is lowered, and passengers can get on or off the train conveniently.
Preferably, the shape-moving mechanism arranged in the two support tables can be independent rotation type or axle bridge type; further preferably, the span of the front side and the rear side of the supporting table is larger than the maximum span of the rotation area of the Dewar during the running process of the train.
In addition, in a preferred embodiment of the present invention, the floor structure includes a bottom frame including a plurality of stringers disposed in parallel and a plurality of cross members 13 disposed below the stringers and perpendicular to the stringers, the plurality of stringers being disposed on the same horizontal plane.
In addition, in a specific embodiment of the present invention, the supporting platform includes a plurality of supporting rods 21 vertically arranged and a plurality of connecting rods 22 horizontally arranged, wherein the plurality of supporting rods 21 are transversely arranged in two rows to form front and rear sides of the supporting platform respectively, and bottoms of the plurality of supporting rods 21 are fixedly connected with the longitudinal beams respectively;
the plurality of connecting rods 22 are positioned at the tops of the plurality of supporting rods 21, two ends of each connecting rod 22 are respectively fixedly connected with the tops of two supporting rods 21 corresponding to each other in the front side surface and the rear side surface of the supporting table, and the plurality of connecting rods 22 form the top surface of the supporting table.
Preferably, the support table further comprises two transverse reinforcing rods 29, and the two transverse reinforcing rods 29 are respectively and transversely connected with the tops of the support rods 21 on the front side and the rear side of the support table.
In addition, in a specific embodiment of the present invention, a plurality of reinforcing ribs 23 are respectively disposed on the outer sides of the front and rear sides of the supporting table, the plurality of reinforcing ribs 23 are all disposed in an inclined manner, and one end of each reinforcing rib 23 is fixedly connected with the middle portion of the supporting rod 21, and the other end is fixedly connected with a longitudinal beam connected with the supporting rod 21.
The provision of the reinforcing beads 23 in this embodiment strengthens the strength of the vehicle while preventing the vehicle body from being excessively deflected in the forward direction in the case of a full passenger.
In addition, in a specific embodiment of the present invention, the plurality of side rails includes two limiting beams 11 and a plurality of side rails 12, the two limiting beams 11 are located in the middle and symmetrical with respect to the center line of the vehicle body, the plurality of side rails 12 are located outside the two limiting beams 11, and the plurality of cross beams 13 are all disconnected between the two limiting beams 11;
a plurality of short cross beams 14 are arranged between the two limiting beams 11 at a transverse interval, the short cross beams 14 and the two limiting beams 11 are positioned on the same horizontal plane, and a linear motor induction plate is fixedly arranged on the lower surface of the short cross beams.
The high-temperature superconductive magnetic levitation vehicle requires a non-contact driving mode, generally adopts a linear motor stator to be fixed on a track, a rotor (a linear motor induction plate) to be fixed on the vehicle, and an air gap between the stator and the rotor is smaller, so that the air gap is ensured to be in a calculated value range, and the linear motor induction plate is generally arranged at the bottommost part of the whole vehicle. In order to reduce occupation of the linear motor induction plate by the vertical height in this embodiment, a plurality of short cross beams 14 are provided for mounting the linear motor induction plate. Preferably, three short beams 14 are provided, wherein two short beams 14 are respectively located below two supporting tables, and one short beam 14 is located on the middle-section bottom plate structure.
Preferably, a fixing rod for connecting the limiting beam 11 and the side longitudinal beam 12 is further arranged between the limiting beam 11 and the side longitudinal beam 12 on the outer side.
In addition, in a specific embodiment of the present invention, rubber vibration-damping sheets are preferably disposed between the short beams 14 and the linear motor induction plate, and the thickness of the rubber vibration-damping sheets is greater than that of the beams 13. The purpose that the lower surface of the linear motor induction plate is slightly lower than the lower surface of the cross beam 13 can be achieved through the arrangement, and meanwhile, a good vibration absorption effect can be achieved.
In addition, in a specific embodiment of the present invention, under the two support tables, the outer side edges of the two limiting beams 11 are respectively provided with a limiting rubber stack, and the limiting rubber stacks are fixedly connected with the limiting beams 11 through rubber stack mounting holes 17 on the limiting beams 11.
In the suspension state of the high-temperature superconductive maglev vehicle, when the train is over-bent, due to the transverse guiding force between the superconductor and the permanent magnetic track, the arrangement of the limiting rubber stack in the embodiment can prevent the Dewar storing the high-temperature superconductor from rotating by an excessive angle; in an abnormal situation or when the maglev vehicle loses a suspension state, the limiting rubber pile can limit the Dewar from rotating by an excessive angle, and in such a situation, the existence of the limiting rubber pile is particularly important for the travelling mechanism to keep the capability of passing through a curve.
In addition, in a preferred embodiment of the present invention, a side plate 24 is disposed outside the side of the two support tables adjacent to the middle bottom plate structure, the side plate 24 is fixedly connected to the support rod 21 on the side, and a liquid nitrogen filling port 25 is formed in the middle of the side plate 24.
In addition, in a preferred embodiment of the present invention, a supporting table plate 26 is disposed on the top of the supporting table, a plate mounting hole is disposed on the upper surface of the connecting rod 22, and the supporting table plate 26 is bolted to the connecting rod 22 through the plate mounting hole.
In addition, in one embodiment of the present invention, the middle and both sides of the support platform plate 26 are preferably provided with a shape-changing mechanism mounting hole 27, respectively. Wherein, the shape-changing mechanism mounting holes 27 on two sides are used for mounting independent rotary type running mechanisms, and the shape-changing mechanism mounting holes 27 in the middle are used for mounting axle bridge type running mechanisms.
Preferably, two through holes 28 are further provided on two sides of the supporting table plate 26, and the two through holes 28 correspond to two air outlet holes of the dewar respectively.
In addition, in a specific embodiment of the present invention, the bottom frame further includes a plurality of boundary connecting beams 15, and the plurality of boundary connecting beams 15 are located at the same horizontal plane as the plurality of stringers, and connect front and rear ends of the plurality of stringers as a unit, respectively.
In addition, in one embodiment of the present invention, a plurality of hull mounting holes 16 are preferably provided on the plurality of boundary connecting beams 15 and the longitudinal beams on both sides, respectively. The plurality of hull mounting holes 16 described in this embodiment are used to connect the vehicle body with the hull.
In addition, in a preferred embodiment of the present invention, the upper surfaces of the two support tables are provided with seats.
The present embodiment arranges the seat directly on the upper surface of the support table, so that the height of the vehicle body can be fully utilized to provide the vertical height required for the feet to the seat when a person sits down. Thus, the height of the whole vehicle is lowered, the gravity centers of the whole vehicle and passengers are lowered, and the running stability of the vehicle is improved. On the other hand, the seat is arranged right above the low-temperature holding container containing the high-temperature superconductor array and the corresponding shape moving mechanism, so that the gravity of passengers and the seat directly acts on the shape moving mechanism and the Dewar through the front supporting table and the rear supporting table, and then the load is transferred to the roadbed through the interaction between the high-temperature superconductors in the Dewar and the permanent magnet tracks, and the stress condition of other parts of the vehicle body can be improved.
In the prior art, the whole bottom plate plane is positioned above four low-temperature holding containers, and the height of the bottom plate from the upper surface of the rail is as follows: the height of the dewar itself plus the suspension height and the suspension height above the dewar. The highest point of the whole vehicle body is the upper surfaces of the front supporting table and the rear supporting table through the arrangement of the front supporting table and the rear supporting table; the height of the bottom plate structure from the upper surface of the rail is slightly higher than the suspension height of the vehicle, the gravity center of the whole vehicle is reduced, and the running stability of the vehicle is improved.
In addition, when the high-temperature superconductive maglev vehicle is combined with the vacuum pipeline, the running resistance of the high-temperature superconductive maglev vehicle can be further reduced, the running quality of the vehicle is improved, the energy consumption is reduced, and the running speed of the vehicle is improved. The relative size (blocking ratio) of the cross-sectional dimension of the vacuum line to the cross-sectional dimension of the entire vehicle is an important factor affecting the aerodynamic drag of the vehicle. The bottom plate height of the high-temperature superconductive maglev vehicle in the prior art is higher, and cannot be well planned and utilized in the vertical dimension, and the seat is arranged on two supporting tables by reducing the bottom plate height, so that the height of the whole vehicle is reduced to the greatest extent, and the windward area of the whole vehicle is reduced. At a given blockage ratio, the height of the highest point of the vehicle from the upper surface of the track is reduced, so that the diameter of the pipeline to be built is reduced, the diameter of the vacuum pipeline can be reduced, and the construction and operation costs of the whole system are reduced. At a given pipeline diameter, the height of the vehicle body bottom plate designed by the application from the upper surface of the track is lower, and the high-temperature superconductive maglev vehicle adopting the vehicle body designed by the application has more free design space in the whole vehicle design.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.
Claims (8)
1. The high-temperature superconductive maglev vehicle body is characterized by comprising a bottom plate structure and two supporting tables, wherein the two supporting tables are arranged on the bottom plate structure at intervals and divide the bottom plate structure into a front section, a middle section and a rear section; the supporting table is of a hollow cuboid structure, and the inside of the supporting table is used for installing a Dewar and a running mechanism of a magnetic levitation vehicle;
the bottom plate structure comprises a bottom frame, wherein the bottom frame comprises a plurality of longitudinal beams which are arranged in parallel and a plurality of cross beams which are positioned below the longitudinal beams and mutually perpendicular to the longitudinal beams, and the longitudinal beams are positioned on the same horizontal plane;
the plurality of longitudinal beams comprise two limiting beams and a plurality of side longitudinal beams, the two limiting beams are positioned in the middle and are symmetrical relative to the central line of the vehicle body, the plurality of side longitudinal beams are respectively positioned at the outer sides of the two limiting beams, and the plurality of cross beams are disconnected between the two limiting beams;
a plurality of short cross beams are arranged between the two limiting beams at a transverse interval, the short cross beams and the two limiting beams are positioned on the same horizontal plane, and a linear motor induction plate is fixedly arranged on the lower surface of the short cross beams.
2. The high-temperature superconductive maglev vehicle body according to claim 1, wherein the supporting platform comprises a plurality of supporting rods which are vertically arranged and a plurality of connecting rods which are horizontally arranged, the plurality of supporting rods are transversely arranged in two rows to respectively form the front side surface and the rear side surface of the supporting platform, and the bottoms of the plurality of supporting rods are respectively fixedly connected with the longitudinal beams;
the plurality of connecting rods are positioned at the tops of the plurality of supporting rods, the two ends of each connecting rod are respectively fixedly connected with the tops of the two supporting rods corresponding to each other in the front side surface and the rear side surface of the supporting table, and the plurality of connecting rods form the top surface of the supporting table.
3. The high-temperature superconductive maglev vehicle body according to claim 2, wherein a plurality of reinforcing ribs are respectively arranged on the outer sides of the front side and the rear side of the supporting table, the plurality of reinforcing ribs are obliquely arranged, one end of each reinforcing rib is fixedly connected with the middle part of the supporting rod, and the other end of each reinforcing rib is fixedly connected with a longitudinal beam connected with the supporting rod.
4. The high temperature superconducting maglev vehicle body of claim 1, wherein rubber vibration-damping sheets are disposed between the plurality of short cross beams and the linear motor induction plate, and the rubber vibration-damping sheets have a thickness greater than the cross beams.
5. The high-temperature superconductive maglev vehicle body according to claim 1, wherein under the two supporting tables, the outer side edges of the two limiting beams are respectively provided with a limiting rubber pile, and the limiting rubber pile is fixedly connected with the limiting beams through rubber pile mounting holes on the limiting beams.
6. The high-temperature superconducting maglev vehicle body according to claim 2, wherein side plates are respectively arranged outside one sides of the two support tables adjacent to the middle-section bottom plate structure, the side plates are fixedly connected with support rods on the sides, and liquid nitrogen filling openings are formed in the middle of the side plates.
7. The high temperature superconducting maglev vehicle of claim 1, wherein the bottom frame further comprises a plurality of boundary connecting beams, the plurality of boundary connecting beams being positioned in a same horizontal plane as the plurality of stringers and connecting front and rear ends of the plurality of stringers as a single body, respectively.
8. The high temperature superconducting maglev vehicle of claim 7, wherein the plurality of boundary connecting beams and the longitudinal beams on both sides are provided with a plurality of housing mounting holes, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910436418.XA CN110091883B (en) | 2019-05-23 | 2019-05-23 | High-temperature superconductive maglev vehicle body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910436418.XA CN110091883B (en) | 2019-05-23 | 2019-05-23 | High-temperature superconductive maglev vehicle body |
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| Publication Number | Publication Date |
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| CN110091883A CN110091883A (en) | 2019-08-06 |
| CN110091883B true CN110091883B (en) | 2024-01-16 |
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| CN201910436418.XA Active CN110091883B (en) | 2019-05-23 | 2019-05-23 | High-temperature superconductive maglev vehicle body |
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