NDLI: Analysis and Suppression of Detent Force in Tubular Linear Electromagnetic Launcher for Space Use

Content Provider	IEEE Xplore Digital Library
Author	Liyi Li Chengming Zhang Baoquan Kou
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. Eng., Harbin Inst. of Technol., Harbin (Liyi Li; Chengming Zhang; Baoquan Kou)
Abstract	With the exploitation of the astrospace, platform is playing more and more important roles. Linear electromagnetic launcher offers a lot of merits such as high speed, precision- acceleration control, wide adjustable range of the initial launch velocity and projectile mass, high energy conversion efficiency, etc. So it will be the best choice of space platform launching in the future. The main problem that appears in all linear electromagnetic launchers is the cogging force. This paper deals with the cogging-force characteristics of short primary, long secondary tubular linear permanent magnet synchronous motors (TL-PMSM) for electromagnetic launcher (EML). Using finite element method (FEM) to analysis the magnet field and detent force of TLEML. The result shows that the end effect is the main reason for thrust ripple and the end effect force vary in periodicity of a pole pitch as the length of the primary armature increase. The periodicity of interior PM TLEML (IPM-TLEML) and surface-mounted PM TLEML (SPM-TLEML) are same but SPM-TLEML lags behind IPM-TLEML. For IPM-TLEML, when the side teeth-width/pole pitch is about 0.33-0.5, the cogging force is minimum. For SPM-TLEML, the minimum point is around 0.5. The detent force has nothing to with the size of external diameter. The configuration can only influence the magnitude of detent force, but not the cycle. Accordingly, optimizing the side teeth-width is very effective to reduce detent force while designing.
Starting Page	1
Ending Page	4
File Size	274077
Page Count	4
File Format	PDF
ISBN	9781424418329
DOI	10.1109/ELT.2008.17
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-10
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stator cores Forging Force Stator windings Stators Finite element methods Electromagnetics
Content Type	Text
Resource Type	Article

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

Analysis and Optimization of Thrust Characteristics of Tubular Linear Electromagnetic Launcher for Space-Use

The Thrust Characteristic Investigation of Transverse Flux Tubular Linear Machine for Electromagnetic Launcher

Enhancement of thrust force of a tubular electromagnetic launcher with transverse flux configuration by leakage flux suppression

Analysis and optimization of thrust characteristics of tubular transverse flux permanent magnet linear machine for electromagnetic launcher

Reduction of detent force caused by the end effect of a high thrust tubular PMLSM using a genetic algorithm and FEM

Enhancement of a Thrust Force of a Tubular Electromagnetic Launcher With Transverse Flux Configuration by Leakage Flux Suppression

A Ferrite Tubular Linear Motor (FTLM): Analysis and design

The thermal characteristics investigation of transverse flux tubular linear machine for electromagnetic launcher

Detent force suppression for permanent-magnet linear synchronous motor utilizing feed-forward control method

Analysis and Suppression of Detent Force in Tubular Linear Electromagnetic Launcher for Space Use

Similar Documents

Analysis and Optimization of Thrust Characteristics of Tubular Linear Electromagnetic Launcher for Space-Use

The Thrust Characteristic Investigation of Transverse Flux Tubular Linear Machine for Electromagnetic Launcher

Enhancement of thrust force of a tubular electromagnetic launcher with transverse flux configuration by leakage flux suppression

Analysis and optimization of thrust characteristics of tubular transverse flux permanent magnet linear machine for electromagnetic launcher

Reduction of detent force caused by the end effect of a high thrust tubular PMLSM using a genetic algorithm and FEM

Enhancement of a Thrust Force of a Tubular Electromagnetic Launcher With Transverse Flux Configuration by Leakage Flux Suppression

A Ferrite Tubular Linear Motor (FTLM): Analysis and design

The thermal characteristics investigation of transverse flux tubular linear machine for electromagnetic launcher

Detent force suppression for permanent-magnet linear synchronous motor utilizing feed-forward control method

Analysis and Suppression of Detent Force in Tubular Linear Electromagnetic Launcher for Space Use