Acquisition approach of moment of inertia based on brushless DC torque motor

Abstract In order to meet the requirements of small moment inertia brushless DC torque motor, optimal design shafting and research on measurement method were carried out basis structure flat motor rotor high-precision sensor. this paper, ProE5.0 software is used model simulate shaft permanent magnet synchronous motor. After comparing common methods inertia, single-wire torsional oscillation test verify typical structural parts. The simulated identified by speed jammer identification algorithm.The results show that error constructed algorithm less than 5% for identification. assembled, can be as a verification parameters which has strong practical significance.