Key parts including piezoelectric transducer and amplitude transformer with a cylindrical hole in the center, and flexural vibration disk are analyzed and calculated.
In this paper, main parameters, key technology, test requires etc. of this motor are introduced, It is successful to use self-made rectangular wire in voice-coil of motor instead of cylindrical one.
As one of the key parts of the aeroengine main-shaft, the dynamic performance of high-speed cylindrical roller bearing directly affects the dynamic characteristic and reliability of the mainframe.