NDLI: Analyzing the Near and Far Field Using Finite Difference and Finite Element Method

Content Provider	IEEE Xplore Digital Library
Author	Bayati, M.S. Keshtkar, A. Gharib, L.
Copyright Year	1973
Abstract	In this paper, the railgun is assumed to be an antenna and simulated with the finite element method (FEM) and the finite difference time domain (FDTD) method. For FEM analysis, the caliber of the railgun is 10 × 10 mm, rail thickness is 10 mm, and rail length is 400 mm. At first, the H-field on the cross section of the rails is computed. Next, power radiation and the maximum value of the E-field in the near and far field are obtained as a function of frequency. Polar radiation patterns versus frequency (1 kHz-1 MHz) in the near and far-field regions are calculated as a function of the angle. For FDTD, we assume that the railgun operates in the far-field region, and radiation patterns are computed in this region. The caliber of the railgun is 15 × 19 mm, rail thickness is 10 mm, and length is 1000 mm. Directivity has been computed versus frequency (100 Hz-1 MHz) in the far-field region. The H-field is calculated versus frequency and the energy is computed as a function of time. For both methods, the railgun included copper rails and an aluminum projectile.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	1398
Ending Page	1402
Page Count	5
File Size	1215601
File Format	PDF
ISSN	00933813
Volume Number	41
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Railguns Rails Finite element analysis Time-domain analysis Finite difference methods Educational institutions railgun Far field finite difference time domain finite element method near field
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Salvo Performance Analysis of Triple-Projectile Railgun

Study of the Current Distribution, Magnetic Field, and Inductance Gradient of Rectangular and Circular Railguns

A New Approach for Modeling Electromagnetic Railguns

An Approach for Eddy-Current Calculation in Railguns Based on the Finite-Element Method

Effect of Armature and Rails Resistivity Profile on Rail’s Electromagnetic Force and Armature Velocity

Theoretical and Experimental Analysis of Breech Fed and 40-Distributed Energy Stage Plasma Arc Railguns

Novel Study of the Rail’s Geometry in the Electromagnetic Launcher

A Frequency-Domain Near-Field-to-Far-Field Transform for Planar Layered Media

Inductance Gradient Variation With Time and Armature Sliding Along the Rails

Analyzing the Near and Far Field Using Finite Difference and Finite Element Method

Similar Documents

Salvo Performance Analysis of Triple-Projectile Railgun

Study of the Current Distribution, Magnetic Field, and Inductance Gradient of Rectangular and Circular Railguns

A New Approach for Modeling Electromagnetic Railguns

An Approach for Eddy-Current Calculation in Railguns Based on the Finite-Element Method

Effect of Armature and Rails Resistivity Profile on Rail’s Electromagnetic Force and Armature Velocity

Theoretical and Experimental Analysis of Breech Fed and 40-Distributed Energy Stage Plasma Arc Railguns

Novel Study of the Rail’s Geometry in the Electromagnetic Launcher

A Frequency-Domain Near-Field-to-Far-Field Transform for Planar Layered Media

Inductance Gradient Variation With Time and Armature Sliding Along the Rails

Analyzing the Near and Far Field Using Finite Difference and Finite Element Method