This article presents a design method of Longitudinal-Bending Coupled Horn (L-BCH) giant magnetostrictive transducer utilized in spinning ultrasonic machining. The structural parameters are initially determined by the theory horn and thick disc. Then, effect rotating wheel on vibration characteristics L-BCH explored model harmonic response analysis through finite element method. Through continu...

in this paper, the effects of transverse cracks on rotating shaft were studied. according to earlier works, crack shaft failure decrease the critical speed of the shaft and also exhibit a nonlinear vibration behaviour leading to increases the amplitude of 1x and 2x harmonics (first and second order of rotational speed in torsional vibration). this suggests that the application of order analysis...