Results 21 to 30 of about 1,018,848 (380)

A novel type coil-multipole field hybrid electromagnetic launching system

Results in Physics, 2019
This paper describes the concept of a Coil-Multipole Field Hybrid Electromagnetic Launcher. The electrical and magnetic equivalent circuits of coil gun and multipole field electromagnetic launch system (MFELS) are discussed. An attempt is made to analyze
Sri Chandan Kondamudi, Sandhya Thotakura, Mallikarjuna Rao Pasumarthi, Guduru Ramakrishna Reddy, Sandesh Mysore Sathyaraj, X.X. Jiang   +5 more
doaj   +1 more source

Electromagnetic Force Distribution and Axial Deformation Uniformity Analysis of Dual-Coil Electromagnetic Tube Compression Method

IEEE Access, 2020
In the conventional electromagnetic tube expansion, axial distribution of the electromagnetic force is not uniform along the workpiece. This results in uneven axial deformation of the deformed tube and restricts the full industrial implementation of this
Li Qiu, Yudong Wang, Zhang Wang, Ahmed Abu-Siada, Yantao Li, Lan Jiang   +5 more
doaj   +1 more source

Opening characteristics of high current fast switch for DC circuit breaker

电力工程技术, 2023
The stability of opening process of fast mechanical switch is the key factor affecting the breaking performance of DC circuit breaker. Based on the finite element method, the multi-field coupling calculation of electromagnetic, thermal and momentum is ...
LAN Jian, FENG Ying, WANG Chengyu
doaj   +1 more source

Signal-coil calibration of electromagnetic seismometers [PDF]

Bulletin of the Seismological Society of America, 1995
AbstractWe show that electromagnetic (em) seismometers may be easily and accurately calibrated by removing a step of current from their signal coil, and simultaneously switching the signal coil to a recorder to capture the response. A theory is developed that obtains the damped generator constant, resonant frequency, and damping ratio from the output ...
Aaron J. Martin, Mark M. Hsu, David B. Harris, Michelle C. Robertson, Peter W. Rodgers   +4 more
openaire   +2 more sources

Optimal design of electromagnetic metamaterial electronic device sensor with specific performance based on multivariate big data fusion

Journal of Experimental Nanoscience, 2023
As the basic unit structure of electromagnetic metamaterial, the structure size of open resonant ring directly determines the constitutive parameters of SRR (dielectric constant ε and permeability μ). In order to improve the energy exchange efficiency of
Sheng Bi
doaj   +1 more source

Design, fabrication and test of integrated micro-scale vibration based electromagnetic generator [PDF]

, 2008
This paper discusses the design, fabrication and testing of electromagnetic microgenerators. Three different designs of power generators are partially microfabricated and assembled.
Beeby, Beeby, Beeby, El-Hami, Elena Koukharenko, Glynne-Jones, John Tudor, Koukharenko, Kulah, Kulkarni, Kulkarni, Mizuno, Russell Torah, Saha, Saibal Roy, Santosh Kulkarni, Serre, Steve Beeby, Terence O’Donnell   +18 more
core   +1 more source

Coil Gun Electromagnetic Launcher (EML) System with Multi-stage Electromagnetic Coils

Journal of Magnetics, 2013
An electromagnetic launcher (EML) system accelerates and launches a projectile by converting electric energy into kinetic energy. There are two types of EML systems under development: the rail gun and the coil gun. A railgun comprises a pair of parallel conducting rails, along which a sliding armature is accelerated by the electromagnetic effects of a ...
Su-Jeong Lee, Bong Sob Song, Ji-Hun Kim, Jin Ho Kim   +3 more
openaire   +3 more sources

Parametric Simulation Analysis of the Electromagnetic Force Distribution and Formability of Tube Electromagnetic Bulging Based on Auxiliary Coil

IEEE Access, 2020
Tube electromagnetic bulging has been given much attention due to its superior advantages in the field of light alloy processing. However, the conventional tube electromagnetic bulging process exhibits some critical issues that restrict its wide ...
Li Qiu, Chenglin Wang, Ahmed Abu-Siada, Wang Bin, Zhang Wang, Weikang Ge, Chang Liu, Peng Chang   +7 more
doaj   +1 more source

Study of a Topology for Plate Electromagnetic Forming Based on Inner Reverse and Outer Positive Double Coil Loading

IEEE Access, 2020
While electromagnetic forming is widely used for aluminum alloy materials, the non-uniformity of plate radial deformation is still a key issue that restricts the wide development of this technology.
Li Qiu, Chenglin Wang, Ahmed Abu-Siada, Wang Bin, Zhang Wang, Weikang Ge, Chang Liu, Peng Chang   +7 more
doaj   +1 more source

An optimized BSCCO/Ag resonator coil for utility use [PDF]

, 2000
AC coils made with BSCCO-2223/Ag tapes and operating in liquid nitrogen have a potential for power related applications, e.g., inductors, transformers and current limiters.
Broeren, B., Damstra, G.C., Godeke, A., Haken, B. ten, Kate, H.H.J. ten, Klein Schiphorst, P., Krooshoop, H.J.G., Rutten, G., Scholten, A., Shevchenko, O.A., Spoorenberg, C.J.G.   +10 more
core   +2 more sources