372 results about "Maglev" patented technology

The invention provides a high-speed magnetic levitation suspension system control method and system based on edge calculation and Transform prediction, and the method comprises the steps: constructing a Transform prediction model with a space-time attention mechanism and an autoregression mechanism based on obtained local low-delay calculation resources and train real-time sensing data, and deploying the Transform prediction model in a vehicle-mounted edge calculation unit; performing short-term high-precision prediction on the gap, the acceleration and the disturbance trend at a plurality of sampling moments in the future through a Transform prediction model to obtain a prediction result; processing actuator current saturation and gap safety threshold hard constraints in a limited prediction domain by using a model prediction controller, and solving an optimization control sequence in real time in combination with a prediction result; and overlapping a control barrier function as a safety filter of the model prediction controller, correcting the optimized control sequence to obtain an optimal control sequence, and controlling the high-speed magnetic suspension system. According to the method, the cloud communication delay and jitter are reduced, and the robustness and security of the system under uncertain disturbance are improved.

The invention discloses a suspension control fault detection and recovery method and device for a maglev train and a medium, and relates to the field of maglev trains, and the method comprises the following steps: S1, constructing a linearized suspension system model; s2, reconstructing a state vector, and generating a suspension gap estimation value; s3, constructing a health probe set, and executing a signal selection strategy; s4, detecting a slow change fault based on the statistical accumulation characteristic of the residual error, and outputting a slow change fault detection result; s5, monitoring the variation trend of the residual error, and triggering a reset mechanism to clear historical accumulated data when a reset condition is met; and S6, generating a final fault mark, and forcibly updating the fault mark to a normal state if a reset mechanism is triggered. According to the hierarchical collaborative decision-making architecture based on the maglev train lap joint structure dynamic model, the condition of performance degradation or failure does not occur in a real system by the algorithm, so that the engineering applicability and reliability of fault diagnosis are improved.

The invention provides a maglev traffic track connecting structure, a maglev traffic track and a construction method of the maglev traffic track. The connecting structure comprises a penetrating type sleeve, a long bolt, an elastic cushion set and a fastening assembly. The penetrating type sleeve penetrates in the thickness direction of the concrete cover plate. The long bolt sequentially penetrates through the track, the penetrating type sleeve and the induction iron core. The elastic pad set comprises a first elastic pad arranged between the top end of the penetrating type sleeve and the induction iron core and a second elastic pad arranged between the bottom end of the penetrating type sleeve and the track. The fastening assembly comprises a nut in threaded fit with the end of the long bolt, and the rail and the induction iron core are fixed to the upper side and the lower side of the concrete cover plate by screwing the nut. The connecting structure is simple and reliable, good in stress condition and convenient to operate and maintain. On one hand, the track is tightly attached to the bottom end face of the concrete cover plate, the stress condition of the long bolts is good, and shear failure is not prone to occurring. And on the other hand, on the basis of realizing adjustable precision, the replacement difficulty and cost of the induction iron core and the track are relatively low.

The invention discloses a confidence embedded model predictive control method, a medium and equipment, and belongs to the technical field of suspension control. According to the method, a kinetic equation of a suspension system is established, a data-mechanism dual-drive uncertainty quantification method is adopted, original operation data of a maglev train and suspension state information measured on line are utilized, and dynamic characteristic learning modeling is conducted on the suspension system under the constraint of the kinetic equation; state quantity distribution of suspension air gaps, vertical speed, electromagnet current and the like at future moments is predicted, and prediction mean values and prediction standard deviations of corresponding states are obtained. In model prediction control optimization, a nominal trajectory of the suspension system is constructed by a predicted state mean value, and a penalty term proportional to prediction uncertainty is added into a cost function; meanwhile, confidence coefficient constraint is constructed based on the predicted standard deviation, and dynamic constraint tightening of key physical quantities such as suspension air gaps, vertical speed and coil current is achieved. According to the invention, real-time sensing and self-adaptive closed-loop control of the operation risk of the suspension system are realized.

The invention discloses a superconducting magnetic levitation U-shaped track beam and a preparation method thereof, and belongs to the technical field of bridge engineering.The superconducting magnetic levitation U-shaped track beam is used for running of a magnetic levitation train with superconducting coils arranged on the two sides of a train body, and the track beam comprises a plurality of track beam sections which are sequentially spliced in the longitudinal direction; each track beam section comprises a main beam body and two side plates arranged on the two transverse sides of the main beam body respectively, the two side plates and the main beam body are integrally formed to form a U-shaped beam body structure, a maglev train can run in the U-shaped beam body, mounting grooves are formed in the inner side wall faces of the two side plates and used for mounting ground coils, and the invention further provides a preparation method of the superconducting maglev U-shaped track beam. The superconducting magnetic levitation U-shaped track beam is formed by splicing the multiple track beam sections, the main beam body and the two side plates in the track beam sections are integrally formed, the number of joints of the track beam is greatly reduced, the smooth performance of the track beam is guaranteed, and the overall stability of a magnetic levitation track system is improved.

The invention provides a truss type steel structure magnetic levitation track panel, a track and a manufacturing method. The track panel is of a steel bolting modular truss track structure and is provided with at least three sleepers which are transversely distributed at intervals in parallel at equal intervals; the bottoms of the two ends of the sleeper are longitudinally bolted with n-shaped rails respectively; induction plate iron cores and skid rails are longitudinally mounted at the tops of the two ends of the sleepers respectively; a plurality of supporting pieces are longitudinally and uniformly distributed between adjacent sleepers, and the top ends of the supporting pieces are bolted with induction plate iron cores and skid rails; the induction plate iron core is modularly and detachably provided with a driving surface induction plate, and the skid rail is modularly and detachably provided with a skid plate; two magnetic pole faces are integrated at the bottom of the n-shaped rail, and a detection face is arranged between the magnetic pole faces. The device is stable and reliable in structure, convenient to maintain, excellent in adaptability, 100% in-plant prefabrication rate, reduced in installation linear control difficulty, improved in construction efficiency, reduced in maintenance cost and replacement cost, and suitable for popularization.

The invention provides a maglev train bottom bolt looseness identification method based on deep learning. The method comprises the following steps: acquiring a bottom image of a maglev train by adopting imaging equipment, and carrying out bolt target detection on an image in a bottom image data set through an improved YOLOv8 network to obtain a bolt image; performing classification processing on the bolt image through a lightweight network RepViT fused with a lightweight ViT design principle; color space conversion, image binaryzation, morphological processing and connected domain screening processing are carried out on the bolt image to extract an anti-loosening line, and whether the vehicle bottom bolt in the bolt image is loosened or not is judged based on the bolt anti-loosening line according to loosening characteristics of different types of bolts under multiple visual angles. According to the method, the detection precision is improved by means of improving a target detection network structure, refining bolt loosening characteristics, providing adaptive detection methods for different types of bolts and the like; by designing a lightweight classification network mode, the calculation amount and time consumption are reduced, and the detection efficiency is improved.

The invention provides a beam end large-displacement stretching and retracting and rail temperature adjusting integrated device of a maglev traffic bridge. The beam end large-displacement stretching and retracting and rail temperature adjusting integrated device comprises a first fixed F rail section, a second fixed F rail section, an F rail length adjusting section and a steel sleeper distance adjusting device. The second fixed F rail section and the F rail length adjusting section are sequentially connected to the second beam body, the first fixed F rail section is arranged on the first beam body and extends to the second beam body across the beam seam to be connected with the F rail length adjusting section, and the F rail length adjusting section can adjust the length. The steel sleeper distance adjusting device is arranged at a beam seam between the first beam body and the second beam body and located below the first fixed F rail section, the steel sleeper distance adjusting device comprises a plurality of sliding steel sleepers arranged at intervals in the longitudinal bridge direction, and the sliding steel sleepers are in sliding connection with the first fixed F rail section above the sliding steel sleepers. And the distance between the adjacent sliding steel sleepers can be adjusted along with the change of the beam seam. The problem of telescopic displacement of the F rail and the steel sleeper caused by large displacement of the beam body is solved, and the system is simpler and more stable.

The invention relates to the technical field of power utilization monitoring, and discloses a power utilization safety monitoring device based on a magnetic suspension power distribution technology, and the device comprises a current detection system which obtains the working state information of a current transformer and a Hall effect sensor through a data collection module; the data analysis module performs normalization processing on the frequency, the current, the direct current component, the environmental magnetic field intensity, the power supply voltage and the aging drift amount; the reliability analysis module calculates the reliability of the two types of sensors based on the normalized index; the weight endowing module dynamically distributes sensor weights in combination with the temperature influence factors; and the current summary calculation module outputs the final detection current through weighted fusion. The problem that a single sensor is easily influenced by frequency deviation, direct current component, temperature drift and magnetic field interference under complex working conditions is solved, high-precision and high-reliability self-adaptive current monitoring is realized, and the safety monitoring capability of a magnetic levitation power distribution system is remarkably improved.

The invention discloses a maglev engineering vehicle, which relates to the technical field of maglev vehicles, and comprises a first suspension frame unit, a second suspension frame unit and a third suspension frame unit, fixed sliding tables are arranged between the first suspension frame unit and the second suspension frame unit and between the first suspension frame unit and the third suspension frame unit, and the fixed sliding tables are fixed to a vehicle body; the transverse stabilizing mechanism comprises a first hydraulic cylinder and a second hydraulic cylinder, when the transverse stabilizing mechanism passes through a bent road section, the first hydraulic cylinder and the second hydraulic cylinder are disconnected to relieve transverse constraint, and the second suspension frame unit and the movable sliding table on the corresponding side of the second suspension frame unit as well as the third suspension frame unit and the movable sliding table on the corresponding side of the third suspension frame unit can rotate around the rotating center of the fixed sliding table on the corresponding side. When passing through a straight road section, the first hydraulic cylinder communicates with the second hydraulic cylinder to achieve transverse constraint, and the rigidity between the vehicle body and the suspension frame unit is guaranteed. According to the maglev engineering vehicle, the curve passing capacity and the curve passing balance stability of the maglev engineering vehicle can be improved.

The invention belongs to the field of electromagnet suspension testing, and discloses a high-speed maglev traffic suspension electromagnet and guide rail interaction test bench which comprises a control detection system, a support, a long stator assembly and an electromagnet assembly. The long stator assembly comprises a long stator mounting rack and at least two sections of long stators arranged on the long stator mounting rack, at least one section of long stator is fixed on the long stator mounting rack in a position and posture adjustable manner, and the long stator assembly is used for simulating slab staggering, transverse movement, rail seam, deflection and angle folding of the long stators; the electromagnet assembly comprises a moving assembly and an electromagnet, and the electromagnet is arranged below the long stator; the control detection system comprises a controllable power supply system connected with the electromagnet and a detection system used for detecting the state of the electromagnet. According to the invention, an electromagnet and track dynamic test environment required by interaction between the electromagnet and tracks under various working conditions with different currents is realized, and the platform support can be used for researching suspension electromagnet-track dynamics.

The invention discloses an anomaly detection method, device and equipment for a maglev train suspension system and a medium, and relates to the technical field of maglev train detection. The method comprises the following steps: acquiring multi-source operation time sequence data of a maglev train suspension system in real time; carrying out automatic feature extraction on the suspension system through a first neural network model to obtain feature vectors used for representing dynamic response behaviors of the suspension system under different working conditions; inputting the feature vector into a trained second neural network model to obtain an anomaly detection score; the second neural network model is a time sequence neural network and is used for outputting a quantitative score value representing the state abnormity possibility of the suspension system according to the input vector; and when the anomaly detection score indicates that the suspension system is in an abnormal state, performing fault mode classification on the abnormal state according to a preset fault classification rule. According to the technical scheme of the invention, the method breaks through the limitation that a conventional method is insufficient in coupling feature extraction, and achieves the precise anomaly detection and fault classification of the suspension system.

The low-speed maglev large-span bridge end super-large displacement track row expansion device is used to realize high-precision maglev track and foundation structure deformation coordination control, and well solves the expansion deformation of the bridge end super-large displacement caused by temperature difference. The track row structure unit is continuously arranged from the main span side pier to the boundary pier on the top surface of the bridge body, the longitudinal front end of the first track row structure unit is anchored and connected with the main span beam body through the anchoring device, and the last track row structure unit longitudinally spans the super-large beam joint. The main body of the track row structure unit includes the bearing rail beam segment and the frame type track row unit, the bearing rail beam segment is integrated with the main span beam body, the frame type track row unit is installed on the bearing rail beam segment through the elastic strip fastener, and the bearing rail beam segment and the frame type track row unit are provided with longitudinal expansion structure and vertical and horizontal limiting structure. A pair of F-shaped guide rails are fixedly installed on the top surface of the frame type track row unit in transverse direction, and the wing plate joint is arranged between the longitudinally adjacent F-shaped guide rails.

The bogie comprises a bearing frame and a suspension device, the bearing frame is of a hollow structure so that an installation area can be formed on the inner side of the bearing frame, and a permanent magnet installation base and a linear motor installation base are arranged in the installation area; the permanent magnet mounting seats are arranged on the two sides of the top wall of the mounting area, and permanent magnets are arranged on the permanent magnet mounting seats so as to generate magnetic levitation force with magnets in the track beam; the linear motor mounting seat is arranged at the bottom of the permanent magnet mounting seat, the linear motor mounting seat and the permanent magnet mounting seat are arranged at an interval, a linear motor is fixedly arranged on the linear motor mounting seat, and the linear motor and the permanent magnet are symmetrically arranged about the symmetric line of the mounting area; and the suspension device is rotationally arranged at the bottom of the bearing frame. The mounting area is arranged in the bearing frame to mount the permanent magnet and the linear motor, so that the distance between the permanent magnet and the linear motor is reduced, the magnetic levitation force variation of the position of the permanent magnet during driving is reduced, the inclination angle of the bogie is reduced, and the running stability of a vehicle is improved.

The utility model discloses a suspension type maglev vehicle and a suspension framework thereof, and relates to the technical field of rail transit, the suspension framework of the suspension type maglev vehicle comprises a first longitudinal beam and a second longitudinal beam, the second longitudinal beam is located below the first longitudinal beam, and the two ends of the first longitudinal beam are connected with the two ends of the second longitudinal beam; the middle part of the first longitudinal beam is connected with the middle part of the second longitudinal beam, the first longitudinal beam and the second longitudinal beam are integrally shaped like a Chinese character'ri ', the first longitudinal beam and the second longitudinal beam are provided with mounting structures, and the mounting structures are used for connecting components of the electromagnetic suspension walking part. According to the suspension type maglev vehicle suspension framework, through the adoption of the suspension framework with the structural design shaped like the Chinese character'ri ', a plurality of components of an electromagnetic suspension walking part are effectively and reasonably integrated in a limited space, meanwhile, the bearing capacity and stability of the framework are guaranteed, and the problems that in the prior art, a framework structure is not compact enough, and the occupied space is large are solved; and the overall performance and the operation efficiency of the vehicle are improved.

The invention relates to the technical field of maglev train suspension control, in particular to a flexible suspension module control method and system for a maglev train, which can remarkably improve the tracking precision, response speed and anti-interference capability of a suspension gap, effectively suppress flexible vibration and ensure high performance and high reliability of a suspension system. The invention provides a flexible suspension module control method for a maglev train. The flexible suspension module control method comprises the following steps: S1, constructing a suspension module coupling dynamic model comprising a flexible electromagnet and a flexible F rail; s2, designing a super-spiral sliding mode-radial basis function neural network adaptive controller; s3, performing anti-saturation correction on the output of the controller; and S4, converting the corrected control quantity into expected current, and controlling a power switch to drive an electromagnet to execute suspension control through a driving circuit.

The invention discloses a rail transit vehicle fault closed-loop tracking management system. The system comprises a multi-dimensional fault diagnosis subsystem, an anomaly detection data knowledge base subsystem, a vehicle key component and associated component fault prediction subsystem and an extreme working condition self-adaptive protection subsystem. The rail transit vehicle fault closed-loop tracking management system aims at solving the problems that an existing rail transit vehicle fault detection system is poor in real-time performance, data is isolated, the fault risk cannot be predicted, the unknown fault processing capacity is weak, and the adaptability to special working conditions is poor. The closed-loop management method and the closed-loop management system which guarantee that vehicle faults are timely and effectively processed are constructed, multi-dimensional improvement is achieved in the aspects of safety guarantee, operation and maintenance efficiency, service quality, management optimization and the like of the rail transit magnetic levitation vehicle through the system, closed-loop tracking from finding to solving of the faults is achieved, and the reliability of the system is improved. And the systematicness and high efficiency of the process are ensured.

The invention discloses a train rail coupling vibration control method, device and equipment and a readable storage medium, and is applied to the technical field of intelligent control, and the method comprises the steps: obtaining a nonlinear model considering a vibration mode of a rail based on a high-speed maglev train structure of a lap joint structure, a rail vibration equation and an electromagnet kinetic equation; determining motion characteristics of the nonlinear model to obtain a motion state space equation; determining a reference model corresponding to the nonlinear model, and determining a control law when the difference between the motion state space equation and the reference model is minimum; and determining target vibration control parameters by using a control law by taking the nonlinear model as a control object reference model as an ideal target. According to the method, the nonlinear model considering the vibration mode of the track is obtained through the high-speed maglev train structure based on the lap joint structure, the corresponding reference model and control law are designed, and due to the fact that the vibration mode of the lap joint structure is considered in the nonlinear model, the suppression effect on coupling vibration of the high-speed maglev train track is better.

The invention discloses a high-speed maglev train suspension constraint control method for coping with long-wave oscillation of a track beam, and belongs to the field of maglev track traffic. The method comprises the following steps: dynamically expanding high-speed maglev train model prediction suspension control under asymmetric preset performance constraints, and coping with safety constraint control of accurate suspension of the high-speed maglev train with long-wave oscillation of a track beam: establishing a track model of the long-wave oscillation of the track beam; designing the precise suspension dynamic expansion asymmetric preset performance constraint of the high-speed maglev train according to the long-wave oscillation information of the track beam; designing a high-speed maglev train suspension air gap mathematical model containing track beam long-wave oscillation information; obtaining a state space expression based on a reconstruction error according to the dynamic expansion asymmetric preset performance constraint and the conversion error; a prediction model is obtained through the expression, an optimal control problem is designed, and an optimal solution is solved; on the premise that the track beam oscillation reference air gap tracking precision is improved, suspension deadlock of the high-speed maglev train under long-wave oscillation of the track beam is avoided, and it is ensured that the high-speed maglev train runs safely in a small suspension gap with low power consumption under long-wave oscillation of the track beam.

This invention relates to a parking braking method and system for maglev trains. The method includes: when the maglev train's speed is at the electro-hydraulic conversion speed point, determining the stage operation sequence according to a corresponding relationship; passing the electro-hydraulic conversion speed point by successively decreasing the stage operation sequence; then acquiring the current state information of the maglev train from the ATO in real time; determining the target deceleration value based on the current state information; determining the stage ratio according to the corresponding relationship and the target deceleration value; applying the stage ratio to the maglev train in a periodic square wave form until the target deceleration value is reached; if the distance between the maglev train and the parking point is a first predetermined distance, then re-determining the target deceleration value; otherwise, when the distance between the maglev train and the parking point is a second predetermined distance, gradually increasing the stage to achieve a fixed-point stop. This invention enables precise stopping of maglev trains under hydraulic braking, ensuring parking comfort and improving the passenger experience.

A recursive RISE control method and system for maglev train levitation systems is disclosed. The control method includes: constructing the dynamic equations and voltage balance equations of the electromagnets based on a single-point levitation system, and then constructing a dynamic model of the single-point levitation system accordingly; designing a virtual control law, and then designing a recursive RISE controller based on the backstepping method by combining the dynamic model of the single-point levitation system and the virtual control law; performing stability analysis on the RISE controller to obtain its stability conditions; and, based on satisfying the stability conditions, using the RISE controller to perform real-time control of the levitation gap of the maglev train levitation system. This invention has excellent anti-interference capabilities, reducing the impact of external interference or model uncertainty on levitation accuracy. Furthermore, by handling the nonlinear relationship between voltage and current through the backstepping method, this invention avoids the model mismatch problem caused by linearization.

The invention discloses a side current collecting device suitable for a medium-low-speed magnetic levitation vehicle, and belongs to the technical field of medium-low-speed magnetic levitation, the side current collecting device comprises a mounting frame and a corbel mechanism, the mounting frame can be fixed on the side of a bogie, and the mounting frame is provided with at least one vertical mounting surface extending in the longitudinal direction; the supporting arm mechanism comprises an insulating plate and an elastic supporting arm capable of deforming in the transverse direction. The insulating plate is fixedly mounted on the mounting surface, one end of the elastic supporting arm is fixedly mounted on the insulating plate, and a sliding shoe is arranged at the other end of the elastic supporting arm and used for driving the sliding shoe to abut against the contact rail during contact power supply; a cable connecting support lug is arranged on the sliding shoe and used for being fixedly connected with a power supply cable of the magnetic levitation vehicle. According to the side current collection device suitable for the medium-low-speed magnetic levitation vehicle, stable and safe power supply can be provided for the magnetic levitation vehicle, meanwhile, the vertical distance between the bottom of a track beam and the bottom face of a contact rail is remarkably reduced, and then the construction cost of a magnetic levitation track is greatly reduced.

The application discloses an assembled superconducting maglev track structure and a construction method thereof, and belongs to the technical field of superconducting maglev tracks. The assembled superconducting maglev track structure comprises two inverted T-shaped tracks and a connecting frame, a plurality of interval arranged adjusting holes are arranged on each inverted T-shaped track, each adjusting hole is communicated with a first wire groove or a second wire groove, a first anchoring bolt is inserted in each adjusting hole, and a suspension guide coil or a traction coil is fixed at one end of the corresponding first anchoring bolt. Two interval arranged wheel running surfaces are formed at the top of the connecting frame, the connecting frame is located between the two inverted T-shaped tracks, and the two ends of the connecting frame are connected with the corresponding inverted T-shaped tracks through post-poured belts. The assembled superconducting maglev track structure provided in the application can not only reduce concrete pouring at a construction site, but also quickly and accurately fix the suspension guide coil or the traction coil, so that the construction efficiency is improved.

The application provides a UAV-InSAR-based magnetic suspension system multi-point collaborative reinforcement learning compensation control method, system, device and medium, the method comprises the following steps: using a UAV to carry a lightweight X-band interferometric synthetic aperture radar system to carry out high-precision surveying and mapping on a magnetic suspension line, and constructing an orbit irregularity power spectrum model; a hierarchical control system is constructed, the amplitude saturation controller in the lower layer generates a basic electromagnetic force control law according to the state quantity of the current suspension point; the upper layer compensation controller based on reinforcement learning is an agent, interacts with the environment composed of the suspension frame, the track and the amplitude saturation controller, trains by using the standardized irregularity function obtained from the track irregularity power spectrum model, and outputs the compensation control quantity for each suspension point; the basic electromagnetic force control law and the compensation control quantity are superimposed to generate the total electromagnetic force control law of each suspension point, and the suspension system is actively compensated and globally stably suspended. The application significantly improves the comprehensive control performance of the suspension system.

The maglev train magnetic system with the high traction efficiency comprises a train body, a suspension frame, electromagnets and a U-shaped track, the train body is connected with the suspension frame, and the electromagnets are symmetrically installed at the two ends of the suspension frame; the U-shaped rails are symmetrically mounted on the rail beam, so that the electromagnets are magnetically connected with the U-shaped rails to generate suspension guiding traction force; the U-shaped track comprises a plurality of layers of ferromagnetic material plates and an aluminum plate on the innermost layer; the electromagnet comprises a motor primary mechanism and a suspension mechanism, and the motor primary mechanism faces the innermost aluminum plate of the U-shaped track to form a short stator motor device; and the suspension mechanism and the ferromagnetic material plate of the U-shaped track generate electromagnetic force. According to the invention, through the type selection design and rearrangement of the magnetic structure, the induction action area of the traction motor is increased, the traction capability of the motor is improved, the traction efficiency is improved, the energy consumption of the system is reduced, and the economical efficiency of the system is improved in a limited space under the vehicle.

The invention discloses a seismic response analysis method for a magnetic levitation line axle coupling system with a seismic isolation support. The method comprises the steps that a motion equation of the magnetic levitation line axle coupling system considering nonlinear mechanical behaviors of the seismic isolation support under the seismic action is constructed; and solving the motion equation by considering equivalent linearization and separation iteration to obtain the dynamic response of the maglev line vehicle and the bridge. According to the method, a bridge model considering the nonlinear hysteresis behavior of the seismic isolation support and a magnetic track interaction model based on PID active control are established, and unified seismic analysis is carried out on strong nonlinear energy consumption of the seismic isolation support and specific active control dynamics of a magnetic levitation vehicle; the problem that an existing universal axle coupling analysis method cannot be directly applied to the complex system is solved.

The utility model provides a maglev train air spring control unit (LST) test device comprising an air source used for supplying air to a tested LST; the adaptive plate is used for installing a tested LST, and the adaptive plate is communicated with or cut off from an air source through an air inlet ball valve; the gas storage tank is communicated with the output end of the tested LST on the adapter plate; the control box is used for controlling the tested LST and collecting pressure signals of the tested LST, and the control box further controls opening and closing of the air inlet ball valve; the first pressure measuring device is connected to the air source; and the second pressure measuring device is connected to the gas storage tank and is used for detecting the pressure change of the gas storage tank. Through the independent air source, the adaptive plate, the control box and the pressure measuring device, the LST testing device can be separated from a train to independently test the LST, so that the inconvenience of train field testing is avoided, and the testing efficiency and flexibility are improved.

A maglev vibration motor, comprising a housing assembly (100), an electromagnetic assembly (200), and an oscillator assembly (300). The housing assembly (100) comprises an outer cylinder (110) having an accommodating cavity; the electromagnetic assembly (200) comprises an elongated cylindrical bobbin (210) having an inner cavity, and coil windings (220) wound around the bobbin (210) along the axial direction of the bobbin (210); and the oscillator assembly (300) comprises two end magnets (310) and one magnetic oscillator (320), the two end magnets (310) are fixed at two axial ends of the bobbin (210) in one-to-one correspondence, the magnetic oscillator (320) is levitated between the two end magnets (310), and the coil windings (220) are configured to be energized to generate a magnetic field in the inner cavity and drive the magnetic oscillator (320) to reciprocate within the inner cavity.

The invention discloses a maglev vehicle and a maglev system, and relates to the technical field of rail transit, and the maglev vehicle comprises a vehicle body, a suspension frame, a transverse shock absorber and a vertical shock absorber. Wherein the suspension frame is connected with a vehicle body, the suspension frame is used for being matched with a T-shaped rail with a transverse rail body, and the two sides of the suspension frame are bent inwards to the position below the transverse rail body to form a rail holding structure; the transverse shock absorber is connected between the vehicle body and the suspension frame and used for restraining transverse swing of the vehicle body. The vertical shock absorber is connected between the vehicle body and the suspension frame and used for restraining vibration of the vehicle body in the vertical direction. According to the magnetic levitation vehicle, the derailment risk, the running stability and the comfort level of the vehicle can be considered.

The application provides a turnout beam, which comprises a plurality of beam body units connected in sequence, the beam body unit comprises a box beam, an inner lateral transverse rib plate and a side edge assembly, a plurality of inner lateral transverse rib plates and a plurality of side edge assemblies are arranged on both sides of the box beam along the length direction at intervals, and the inner lateral transverse rib plates and the side edge assemblies on both sides of the box beam are symmetrically arranged; the length direction of the side edge assembly is parallel to the length direction of the box beam, a single side edge assembly is connected with a plurality of inner lateral transverse rib plates corresponding to the single side edge assembly, and the upper top surface of the side edge assembly is flush with the upper top surface of the box beam. The structural form of the turnout beam of the application can effectively reduce the driving force required when the line type is switched, compared with the existing turnout beam. The application further provides a high-speed magnetic levitation turnout and a switching control method thereof, the switching time is less than or equal to 24s, the lateral line type precision error is within 2mm per full line length, the line type fitting precision is not less than the existing eight-car arrangement scheme, and the driving force is much smaller than the three-car arrangement scheme.