Title :
Internal stress analysis of Halbach array magnets with application to linear synchronous motors
Author :
Sakamoto, T. ; Wakimoto, H.
Author_Institution :
Kyushu Inst. of Technol., Kitakyushu
Abstract :
The paper deals with the analysis in both electromagnetic and mechanical aspects to discuss the guidelines for designing Halbach array magnets used in linear electrical machines. We show first the analytical approach for magnetic field of Halbach array permanent magnets, and then introduce an analytical methodology of flexures of plates that are used for fixing the PM array. The calculated results reveal the magnetic stress distributed along the array, and the plate deflection and tensile stress as a function of plate thickness.
Keywords :
internal stresses; linear synchronous motors; machine theory; magnetic fields; permanent magnet motors; plates (structures); Halbach array permanent magnets; electromagnetic aspects; internal stress analysis; linear synchronous motors; magnetic field; mechanical aspects; plate deflection; plate thickness; tensile stress; Electromagnetic analysis; Internal stresses; Magnetic analysis; Magnetic flux; Magnetic flux leakage; Magnetization; Magnets; Soft magnetic materials; Synchronous motors; Tensile stress; Halbach array permanent magnet; linear synchronous motor; magnetic stress; plate flexure;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion, 2008. SPEEDAM 2008. International Symposium on
Conference_Location :
Ischia
Print_ISBN :
978-1-4244-1663-9
Electronic_ISBN :
978-1-4244-1664-6
DOI :
10.1109/SPEEDHAM.2008.4581156
