TY - GEN
T1 - Theoretical Analysis and Comparative Study of Contact Permanent Magnet Locking Mechanisms Used in Aerospace
AU - Sun, Jianfei
AU - Li, Yong
AU - Wang, Qian
AU - Ma, Pengcheng
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - In aerospace instruments, many moving units need to be locked by an auxiliary mechanism separately under non-working state, in order to avoid the interaction to other equipment. The contactless locking mechanism has low energy density, small locking force and poor anti-interference ability. In this paper, a contact permanent magnet locking mechanism is proposed, and two kinds of magnetic circuit design schemes, radial and axial, are compared and analyzed. The main performance parameters of the two schemes are quantitatively studied by three-dimensional FEM method, the relations between the locking force, locking angle, energy density and structural parameters are determined, which indicate that the axial structure is better. The theoretical results are finally verified by experimental results on a prototype, which proved that the design is reasonable in practical engineering.
AB - In aerospace instruments, many moving units need to be locked by an auxiliary mechanism separately under non-working state, in order to avoid the interaction to other equipment. The contactless locking mechanism has low energy density, small locking force and poor anti-interference ability. In this paper, a contact permanent magnet locking mechanism is proposed, and two kinds of magnetic circuit design schemes, radial and axial, are compared and analyzed. The main performance parameters of the two schemes are quantitatively studied by three-dimensional FEM method, the relations between the locking force, locking angle, energy density and structural parameters are determined, which indicate that the axial structure is better. The theoretical results are finally verified by experimental results on a prototype, which proved that the design is reasonable in practical engineering.
KW - contact
KW - energy destiny
KW - locking angle
KW - locking force
KW - locking mechanism
UR - https://www.scopus.com/pages/publications/85077132679
U2 - 10.1109/ICEMS.2019.8922001
DO - 10.1109/ICEMS.2019.8922001
M3 - 会议稿件
AN - SCOPUS:85077132679
T3 - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
BT - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Y2 - 11 August 2019 through 14 August 2019
ER -