TY - GEN
T1 - Investigation of interior axially magnetized permanent magnet tubular linear machine used for electromagnetic launcher
AU - Zhao, Jing
AU - Chen, Zhen
AU - Liu, Xiangdong
AU - Zheng, Ping
AU - Hu, Hengzai
AU - Sui, Yi
PY - 2012
Y1 - 2012
N2 - Due to high winding utilization ratio, high thrust density, zero transverse end effect, and zero unilateral magnetic force, tubular linear machine (TLM) is a very suitable candidate for electromagnetic launcher. In this paper, two kinds of interior axially magnetized permanent magnet TLMs with and without slots are compared and evaluated with finite element method (FEM) from the aspects of magnetic field, thrust characteristic, thrust density, cogging force, and so on. It is shown that the slotted TLM has higher electromagnetic performance and thrust density, which is an important merit for the electromagnetic launcher. Then the slotted TLM is investigated more deeply by FEM. The material selection and structure optimization are researched to improve the electromagnetic performance. The thrust characteristic is much improved after optimization.
AB - Due to high winding utilization ratio, high thrust density, zero transverse end effect, and zero unilateral magnetic force, tubular linear machine (TLM) is a very suitable candidate for electromagnetic launcher. In this paper, two kinds of interior axially magnetized permanent magnet TLMs with and without slots are compared and evaluated with finite element method (FEM) from the aspects of magnetic field, thrust characteristic, thrust density, cogging force, and so on. It is shown that the slotted TLM has higher electromagnetic performance and thrust density, which is an important merit for the electromagnetic launcher. Then the slotted TLM is investigated more deeply by FEM. The material selection and structure optimization are researched to improve the electromagnetic performance. The thrust characteristic is much improved after optimization.
KW - Electromagnetic launcher (EML)
KW - permanent magnet
KW - thrust characteristic
KW - tubular linear machine
UR - http://www.scopus.com/inward/record.url?scp=84869169221&partnerID=8YFLogxK
U2 - 10.1109/EML.2012.6325144
DO - 10.1109/EML.2012.6325144
M3 - Conference contribution
AN - SCOPUS:84869169221
SN - 9781467303057
T3 - Conference Proceedings - 2012 16th International Symposium on Electromagnetic Launch Technology, EML 2012
BT - Conference Proceedings - 2012 16th International Symposium on Electromagnetic Launch Technology, EML 2012
T2 - 2012 16th International Symposium on Electromagnetic Launch Technology, EML 2012
Y2 - 15 May 2012 through 19 May 2012
ER -