Title :
Contactless magnetic leadscrew: modeling and load determination
Author :
Ji, Zhiming ; Chang, Timothy N. ; Shimanovich, Michael ; Caudill, Reggie J.
Author_Institution :
Dept. of Mech. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
Magnetically coupled leadscrews with aerostatic suspension provide superior precision for motion control. The paper focuses on load capacity determination for such drives. Boundary conditions for airgap magnetic field are derived and used to solve the corresponding Laplace equation. The result is then used to calculate airgap permeance and obtain the operating point of the magnet. Finally relationships between load and design parameters are established for preliminary selection of component dimensions and material properties
Keywords :
Laplace equations; air gaps; drives; magnetic devices; magnetic fields; motion control; Laplace equation; airgap magnetic field; airgap permeance calculation; boundary conditions; contactless magnetic leadscrew; drives; load capacity determination; load determination; magnetically coupled leadscrews; motion control; Air gaps; Load modeling; Magnetic analysis; Magnetic fields; Magnetic flux; Magnetic levitation; Magnetic materials; Magnetic separation; Permanent magnets; Yarn;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.876663
