To enhance the modeling accuracy of high-speed maglev linear synchronous motors, a distributed parameter modeling method considering the influence of the suspension system was proposed based on the magnetic co-energy reconstruction of the electromagnetic module. Firstly, a finite element model of th...

A spectral identification method for calculating the magnitude of inherent misalignment in a rotor-magnetic bearing system was proposed to study and identify mixed parallel misalignment of the rotor system occurring at the bearing. The momentum moment theorem was used to equate the effect of the dis...

In the multi-electric aircraft engine, an active magnetic bearing can break through the limitation of temperature on the support part due to its high temperature resistance and non-contact characteristics, which enables its support part to be closer to the combustion chamber. In order to investigate...

In magnetic bearing-rotor systems, the bending mode vibration may be excited by the interface contact formed by bolt joints during rotor levitation, and the vibration frequency varies with rotation speed. To actively control bending mode vibration at any speed, the design method of a robust H∞ contr...

In view of the high-precision motion control problem of the maglev rotary table with nonlinearity, coupling, and uncertainty, a fractional-order sliding mode control method based on a nonlinear disturbance observer was proposed to improve the tracking accuracy. Firstly, based on the electromagnetic ...

Due to the special structure and dynamic end effect of linear induction motors, the change mechanism and law of their excitation inductance and secondary loss resistance are complicated. In order to improve the identification accuracy and performance of the observer for excitation inductance and sec...

In order to improve the accuracy and efficiency of the magnetic force calculation of hybrid electromagnets, this paper took into account the advantages of fast calculation speed of the analytical method and high calculation accuracy of the finite element method and proposed a calculation method of t...

The new method of continuous centrifugal separation instead of dialysis membrane has improved the quality of life of patients with kidney disease who depend on hemodialysis treatment. As a result, the research on artificial kidney pumps has been paid much attention by many scholars, but the conventi...

The permanent magnet suspension (PMS) transportation system utilizes the magnetic repulsion between the on-board permanent magnet and the permanent magnetic rail to achieve levitation. Understanding and mastering the relationship between the magnetic force of the permanent magnet and its spatial pos...

In order to study the influence of controller time lag on the stability of the levitation system of the magnetic levitation train, firstly, the two-degree-of-freedom magnetic levitation train levitation system model is established by taking displacement-velocity as the feedback control parameter, an...

To explore the dynamic responses of medium-low speed maglev trains and bridges under stochastic track irregularities, the pseudo excitation method was introduced into the vibration analysis of the maglev train-bridge system. A stochastic vibration analysis method for the medium-low speed maglev trai...

The positioning and speed measurement method for normal-conducting high-speed maglev trains based on tooth slot detection of long stator may have inaccurate positioning caused by the lack of speed measurement and positioning signal, interference, and installation error of speed measurement and posit...

Accurate and smooth parking is an essential goal for automatic driving braking control of maglev trains. The strong coupling of the electro-hydraulic hybrid braking state affects the medium and low-speed maglev trains during the stopping braking process, and the traditional braking control method ba...

Improper control parameters of the suspension system of maglev trains may lead to abnormal vibration of the train-bridge system. Therefore, it is important to clarify the relationship between the control parameters of the suspension system and the dynamic response of the maglev train-bridge system. ...

Traditional linear vibration isolation system fails to achieve a lower initial vibration isolation frequency after setting the dimensional parameters. To address this issue, this article presented an electromagnetic vibration isolation system with variable stiffness based on the structure of a perma...

To solve problems such as the large construction height of separated track beams for medium and low speed maglev and the inability to consider the stiffness contribution of F rail, an integrated track beam structure with a perforated steel plate was proposed. In addition, a full-scale model test and...

Unmanned aerial vehicles (UAVs) can be rapidly and cost-effectively deployed. By deploying the base station equipment to the launching UAV platform, the air-ground networks of UAVs can quickly build ground coverage network from the air, so it has broad application prospects in emergency relief, remo...

In order to study the autonomous control problem of unmanned aerial vehicle (UAV) networks in emergency communication scenarios, multiple rotary-wing UAVs equipped with 6G base stations were used, and a low-altitude and single-layer UAV network was formed through the interconnection between UAVs, th...

Collaborative target perception technology of unmanned aerial vehicles (UAVs) is an important security guarantee for the mixed operation of manned aerial vehicles and UAVs. In view of the perception reliability problem in complex airspace environments, the operation scenarios of large and medium-siz...

In the ultra-reliable low-latency communications (URLLC) multi-unmanned aerial vehicle (UAV) network, to satisfy the ultra-reliable low-latency requirements, the intelligent reflecting surface (IRS) in the air was introduced to assist in communication, and a multi-intelligent deep deterministic poli...

To enhance the performance of the unmanned aerial vehicle (UAV)-assisted communication network based on the orthogonal frequency division multiple access (OFDMA) mode, the rational network allocation and optimal allocation of communication resources were studied. Firstly, in order to maximize the fa...

In the communication scenario of unmanned aerial vehicles (UAVs), the airborne integrated sensing and communications (ISAC) system is affected by the strong self-interference caused by local signal transmission, which degrades the sensing performance of the system to the target. To solve this issue,...

Traditional federated learning has limitations in unmanned aerial vehicle (UAV) swarm applications, which require all participants to perform the same tasks and have the same model structure. Therefore, a multi-task federated learning (M-Fed) method suitable for UAV swarms was explored, and an innov...

Unmanned aerial vehicles (UAVs) are important weapons and equipment for military powers in the world to carry out tactical operations. Applying UAVs in the battlefield to achieve data storage is an important way to ensure the operation. In order to better meet the data storage requirements of UAV cl...