The effects of radiation-induced demagnetization on the performance of the brushless DC motor in robot servo systems

Author

Shimeng Li ; Samin, Adib ; Zheng, Yuan F. ; Lei Cao

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA

fYear

2014

Firstpage

1

Lastpage

6

Abstract

The implementation of humanoid robots will be very significant in nuclear accident treatment in substitution of humans; however the electronic and mechanical parts in robots could be damaged by large dose of radiation. In this paper we study the radiation-induced degradation of the brushless DC (BLDC) motor in robot servo systems and propose how its performance would change due to Nd-Fe-B demagnetization. An explanation of the mechanisms relevant to the radiation-induced demagnetization of the Nd-Fe-B magnets is given, and an approach using the motor back-EMF to analytically study the radiation induced performance changes of the BLDC motor is also included.

Keywords

boron; brushless DC motors; demagnetisation; humanoid robots; iron; neodymium; radiation effects; servomechanisms; B; Fe; Nd; brushless DC motor; humanoid robots; motor back-EMF; nuclear accident treatment; radiation-induced demagnetization; robot servo systems; Brushless DC motors; Demagnetization; Magnetic flux; Permanent magnet motors; Robots; Servomotors; Brushless DC motor; Nd-Fe-B magnet; back-EMF; radiation; robot servo system;

fLanguage

English

Publisher

ieee

Conference_Titel

Fundamentals of Electrical Engineering (ISFEE), 2014 International Symposium on

Print_ISBN

978-1-4799-6820-6

Type

conf

DOI

10.1109/ISFEE.2014.7050562

Filename

7050562