NDLI: Analysis of the performance of a combined coil-rail launcher

Content Provider	IEEE Xplore Digital Library
Author	Barmada, S. Musolino, A. Raugi, M. Rizzo, R.
Copyright Year	1965
Abstract	An electromagnetic system that operates both as a rail and as a coil launcher is proposed, and its performance is analyzed. The device has a composite stator that consists of two rails properly slotted in order to allow the presence of a system of coils. The armature consists of a conductive slab sliding between the rails. Another system of slots is present in the armature where a system of short-circuited coils is placed. A source of constant voltage is connected to the rails and the current flowing in the armature through the sliding contacts produces a thrust force on it. If a proper system of currents able to produce a traveling wave of flux density in the region between the rails is used to feed the barrels, the induced currents that flow in the armature's short-circuited coils produce a further thrust force on the armature itself. The analysis of the behavior of this launcher is performed via a computer code based on an integral formulation and a tool that analyzes the phenomena related to the velocity skin effect; the interactions between the two systems of currents on the armature and the currents on the stator (rails and barrels) are investigated. The thermal behavior of the device has been taken into account by a simple adiabatic model since the short operating time allows one to neglect heat diffusion in the conductive parts of the system. A comparison between the velocities, respectively obtained by separately feeding rails and coils and the system with the combined feeding, has been performed. Preliminary results of the analysis show that this device, because of the presence of two systems of thrust forces acting on the armature, can be successfully used in the acceleration of heavy masses at relatively high velocities, the maximum achievable speed being limited by thermal and mechanical stresses.
Sponsorship	IEEE Magnetics Society
Starting Page	103
Ending Page	107
Page Count	5
File Size	375506
File Format	PDF
ISSN	00189464
Volume Number	39
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance analysis Rails Coils Stators Electromagnetic launching Electromagnetic analysis Slabs Voltage Feeds Skin effect
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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

A novel type rail-coil hybrid electromagnetic launcher

Interactive electromagnetic launcher simulation

High-efficiency, medium-caliber helical coil electromagnetic launcher

Helical rail glider launcher

Research on a Big Multiturn Rail Electromagnetic Launching System

Performance results of a small-calibre electromagnetic launcher

Continuous electromagnetic launcher using soleniod coil

Emack electromagnetic launcher commissioning

A study of current distribution in electromagnetic launcher rails

Analysis of the performance of a combined coil-rail launcher

Similar Documents

A novel type rail-coil hybrid electromagnetic launcher

Interactive electromagnetic launcher simulation

High-efficiency, medium-caliber helical coil electromagnetic launcher

Helical rail glider launcher

Research on a Big Multiturn Rail Electromagnetic Launching System

Performance results of a small-calibre electromagnetic launcher

Continuous electromagnetic launcher using soleniod coil

Emack electromagnetic launcher commissioning

A study of current distribution in electromagnetic launcher rails

Analysis of the performance of a combined coil-rail launcher