Blar i NTNU Open på forfatter "Ullah, Aasim"
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Investigation of Cogging Torque of a Downhole Drilling Machine and Optimization of Electrical Machine
Ullah, Aasim (Master thesis, 2012)This paper is a report on master thesis project conducted in cooperation with SMARTMOTOR AS and NTNU. The research for electrical downhole drilling machine has developed for decades. Permanent Magnet is a new addition in ...