TY - GEN
T1 - Electromagnetic force characteristics in long-stator PM linear launcher with non-ideal mechanical air gap condition
AU - Ma, Mingna
AU - Li, Liyi
AU - Zhu, He
AU - Chan, C. C.
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/10/10
Y1 - 2014/10/10
N2 - The designs of long-stator permanent magnet (PM) linear launcher are widely adopted modular segments to simplify system and reduce energy losses. The assembled segments structure causes non-ideal mechanical air gap condition inevitably, and it brings significant effects on electromagnetic performance. Hence, this paper investigates electromagnetic force characteristics in longstator PM linear motor with non-ideal mechanical air gap condition. First, the non-ideal mechanical air gap conditions are categorized, and then corresponding calculated models by finite element method are proposed. The influence of non-ideal air gap conditions on electromagnetic thrust, detent force and normal force characteristics are analyzed respectively. These studies can provide references to operational analysis and assembly process of electromagnetic launcher based on long-stator PM linear motor.
AB - The designs of long-stator permanent magnet (PM) linear launcher are widely adopted modular segments to simplify system and reduce energy losses. The assembled segments structure causes non-ideal mechanical air gap condition inevitably, and it brings significant effects on electromagnetic performance. Hence, this paper investigates electromagnetic force characteristics in longstator PM linear motor with non-ideal mechanical air gap condition. First, the non-ideal mechanical air gap conditions are categorized, and then corresponding calculated models by finite element method are proposed. The influence of non-ideal air gap conditions on electromagnetic thrust, detent force and normal force characteristics are analyzed respectively. These studies can provide references to operational analysis and assembly process of electromagnetic launcher based on long-stator PM linear motor.
KW - electromagnetic force
KW - finite element method
KW - mechanical air gap
KW - PM linear motor
UR - http://www.scopus.com/inward/record.url?scp=84909953161&partnerID=8YFLogxK
U2 - 10.1109/EML.2014.6920161
DO - 10.1109/EML.2014.6920161
M3 - Conference article published in proceeding or book
AN - SCOPUS:84909953161
T3 - Conference Proceedings - EML 2014 17th International Symposium on Electromagnetic Launch Technology
BT - Conference Proceedings - EML 2014 17th International Symposium on Electromagnetic Launch Technology
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 17th International Symposium on Electromagnetic Launch Technology, EML 2014
Y2 - 7 July 2014 through 11 July 2014
ER -