A5101531984- Electromagnetic Launch and Propulsion Technology
- Energetic Materials and Combustion
- High-Velocity Impact and Material Behavior
- Advanced Measurement and Detection Methods
- Pulsed Power Technology Applications
- Plasma Diagnostics and Applications
- Magnetic confinement fusion research
- Combustion and Detonation Processes
- Space Technology and Applications
- Geophysical Methods and Applications
- Medical Imaging and Analysis
- Electric Motor Design and Analysis
- Mechanics and Biomechanics Studies
- Electromagnetic Scattering and Analysis
- Transportation Safety and Impact Analysis
- Laser-Plasma Interactions and Diagnostics
- Electromagnetic Compatibility and Measurements
- Electromagnetic Simulation and Numerical Methods
- AI and Big Data Applications
- Dental Implant Techniques and Outcomes
- Advanced Sensor and Control Systems
- Applied Advanced Technologies
- Advanced Decision-Making Techniques
- Speech and Audio Processing
- Cancer and Skin Lesions
Beijing Institute of Technology
2022
First Affiliated Hospital of Jiamusi University
2022
Air Force General Hospital PLA
2021
Huazhong University of Science and Technology
2020
Zhengzhou University
2020
Qingdao Academy of Intelligent Industries
2020
Shanxi Province Hospital of Traditional Chinese Medicine
2018
Naval Aeronautical and Astronautical University
2006-2016
Yantai Automobile Engineering Professional College
2016
Harbin Institute of Technology
2005
There are many factors which can affect the muzzle velocity of projectile in system multi-stage synchronous inductive coilgun (SICG), and discharge position armature is important one. If with respect to a drive-coil changed when charge capacitor bank switched into circuit, launched by will change. In this paper, positions three-stage SICG investigated. The results indicate that best exists each stage. stage circuit passes through stage, be accelerated maximal velocity. obtained.
Electrical-to-kinetic energy conversion efficiency of synchronous induction coilguns (SICG) is the main limiting factor its development. In system SICG, change any electromagnetic parameters can directly or indirectly affects electrical-to-kinetic efficiency. order to improve electromechanical model SICG was built at first in this paper. Then, structural with 60-mm caliber were optimized ant colony optimization algorithm. The regarded as target function, while center-to-center space between...
Armature is a key component in induction coilgun (ICG) which can easily be destroyed by enormous electromagnetic forces during the launching process. In order to design high-strength armature and guarantee success of ICG launchings, mathematical model magnetic-structural coupling built. Distribution eddy currents, magnetic forces, deformation, stress obtained through simulation. How stresses vary resulting from changes radial thickness analyzed this article. Simulation results reveal that...
In order to avoid the inherent defect of traditional position trigger and time trigger, reduce launch error accumulation, improve efficiency electromagnetic coil launcher, a new control method based on real-time velocity measurement is provided in this paper. By simulation launcher whose structural parameters are given, optimal corresponding different initial could be achieved preset host computer. First, each stage measured real time, reference set. Second, data matched with data, then...
Active electromagnetic (EM) armor is a new type of active defense system, which can intercept invading objects effectively. When hit by interception projectiles, the object will deviate from its trajectory or be destroyed totally. A steerable EM launcher system using two separate pancake coils introduced in this paper, and 3-D model built. With finite element analysis code, acceleration process projectile simulated, laws force acting on projectile, velocity, displacement versus time are also...
Active electromagnetic (EM) armor is a new kind of active defense system, which consists advanced detector, control high pulsed-power supply, and an EM launcher (EML). The EML key component the armor, includes drive coil, interception projectile, insulator, pedestal. With EML, electric energy provided by supply can be transformed into kinetic projectile. Hit projectiles, invading object destroyed totally or deviate from its trajectory. In this paper, make up working principle are introduced....
An active electromagnetic (EM) armor is a new kind of defense system, which consists advanced detector, control high pulsed-power supply, and EM launcher (EML). Electric energy provided by the supply can be transformed into kinetic interception projectile with EML. Hit projectiles, invading object could totally destroyed or deviate from its trajectory. In EML launch coil key component it when peak current load exceeds certain value. this paper, structure working principle are introduced. By...
Multi-stage synchronous induction coil launcher (MSSICL) uses multi-stage drive coils to accelerate projectile. It can launch projectile of great mass. Because every has an optimal trigger time, the accurate control time ensure large muzzle velocity. With increase projectile's velocity, acceleration between different stages in decreases, making more difficult. In this paper, a method software is proposed. Simulation result shows that allow for greater accuracy and response speed, effectively...
Along with the continuous development of intellectualized antitank ammunition and application future electric gun in battlefield, armored vehicles encounter an increasingly heavy threat battlefield. So armor protection has to develop new technologies so as enhance vehicles' survivability A concept practical pulsed power technology-active electromagnetic (EM) was discussed this paper. It combined intellectual fire-control, advanced detector, precise EM projectile interceptor. must be...
The reusable linear magnetic flux compressor not only can offer fairly high energy density and work repeatedly, but also be statically inert prior to firing. Therefore, it regarded as an ideal pulsed power supply for the electric gun. Based on theoretical studies of this compressor, a mathematical model is developed described in paper. This includes 2-D hydrodynamic treatment, armature motion, dynamic inductance, resistance, loss, circuit quantities 1-D diffusion field, current temperature...
A 90-year-old man was diagnosed with primary gastric diffuse large B-cell lymphoma (PGDLBL) by PET/CT examination, gastroscopy, biopsy and histopathological analysis at a regular physical check in April, 2016. The patient received R-CO chemotherapy (rituximab, cyclophosphamide, vincristine) radiotherapy subsequently, enteral nutritional treatment through 3-cavity nasogastric tube due to development of pyloric obstruction. To satisfy patient's strong desire eating himself, we performed...
Active electromagnetic (EM) armor comprises detection system, intellectual control high pulsed-power supply and EM launcher together. And consists of drive coil, insulator, pedestal interception projectile. In order to analyze influences on Ampere forces acting the projectile which result from variations material properties structural parameter a 3D model is set up. Simulation accomplished with parameterized finite element analysis (FEA) code.
There are many factors which can affect the muzzle velocity of projectile in system multi-stage synchronous inductive coilgun (SICG), and discharge position armature is important one. If with respect to a drive-coil changed when charge capacitor bank switched into circuit, launched by will change. In this paper, positions three-stage SICG investigated. The results indicate that best exists each stage. stage circuit passes through stage, be accelerated maximal velocity. obtained.
This article first introduces the characteristics and disadvantages of traditional remote fire extinguishing technology proposes a system based on electromagnetic ejection. Based finite element analysis method grid matrix method, seven-segment launcher model is designed. As initial energy source, capacitor can accelerate 10 kg bomb to 113 m/s with range 2 km. The results show that catapult designed in this study meet needs bombs. paper also designs overall structure vehicle system, discusses...
This thesis develops a robotic arm's interactive simulation platform. The main research method is to build an platform for arms based on OpenGL virtual prototype technology and robot kinematics, integrating Visual C ++ MFC program framework. can accurately simulate the working performance of medical rehabilitation arm, calculate forward inverse kinematics data, end trajectory arm in real time, realize 3D simulation, human-computer interaction teaching arm. After testing, it was concluded...
Active electromagnetic (EM) armor is a new kind of active defense system, which can enhance survivability the armored vehicles through intercepting invading target. The interception projectile and pedestal are key component EM material characteristic have great influence on launching efficiency launcher. In this paper, working principle launcher with two pancake coils introduced. Mathematical model 3-D finite element established. Influence analyzed. order to verify simulation results...
GPS Speed Measurement, just like position measurement, is a very widely-applied field.GPS can not only determine the real-time location of carriers in motion, but also instantaneous speed .Therefore, at present, measurement widely applied.In view disadvantage that present common filtering algorithm cannot track targets precisely and efficiently, finite-difference extended Kalman filter (FDEKF) presented to be used tracking reentry stage.This obtains priori posteriori error covariance...
The electromechanical energy conversion efficiency of synchronous induction launcher (SIL) is an important indicator for the EM launcher. changing structure will directly affect and determine performance SIL. In order to improve performance, multi-stage coupling calculation model SIL established. Based on uniform design method (UDM), parameters are optimized, discharging positions analyzed. Correlativity got optimal achieved which significant design.
Active electromagnetic (EM) armor is a new kind of active defense system, which consists advanced detector, control high pulsed-power supply and EM launcher. Electric energy provided by the can be transformed into kinetic interception projectile with Hit projectiles, invading object destroyed totally or deviate from its trajectory. Launch coil key component launcher it should because strength shortage if current load exceeds some value. In this paper, structure working principle are...