2019
DOI: 10.1007/s40430-019-2020-4
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Simple bidirectional linear ultrasonic motor driven by single-phase signal

Abstract: A novel standing wave linear ultrasonic motor with a single source of sinusoidal wave is presented for exciting first-order longitudinal and second-order bending coupling working modes. First, on the basis of a kinematics analysis of the composite piezoelectric beam, the initial motor structure size is created, and the frequency difference of the two working modes of the motor with the initial sizes is 10,950.8 Hz. Second, the initial motor design is optimized according to the subproblem approximation algorith… Show more

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Cited by 15 publications
(2 citation statements)
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“…In detail, a sinusoidal signal with the resonant frequency is applied to the piezoelectric ceramics to excite the standing‐wave vibration of the piezoelectric actuating element; and the driving feet are arranged at specific positions of the standing wave to obtain oblique trajectories with actuating function; then, movements of MPRs can be realized via the friction coupling effect between the driving feet and the ground. [ 150 , 151 ] In addition, the driving feet can be arranged at different positions of the standing wave to achieve the forward and backward motions, respectively. The standing‐wave type MPRs generally exhibited the advantages of simple and compact structures, requiring only one signal, and easy to excitation and control.…”
Section: Mprs With Different Working Principlesmentioning
confidence: 99%
“…In detail, a sinusoidal signal with the resonant frequency is applied to the piezoelectric ceramics to excite the standing‐wave vibration of the piezoelectric actuating element; and the driving feet are arranged at specific positions of the standing wave to obtain oblique trajectories with actuating function; then, movements of MPRs can be realized via the friction coupling effect between the driving feet and the ground. [ 150 , 151 ] In addition, the driving feet can be arranged at different positions of the standing wave to achieve the forward and backward motions, respectively. The standing‐wave type MPRs generally exhibited the advantages of simple and compact structures, requiring only one signal, and easy to excitation and control.…”
Section: Mprs With Different Working Principlesmentioning
confidence: 99%
“…Single-mode USMs operate in one single vibration mode and are usually excited by the single-phase signals, which have simple drive signal, flexible design, and no need for the degeneration of vibration modes [29,30]. For example, Dong et al [31] developed a single-mode bidirectional USM with a two-vibrator structure.…”
Section: Introductionmentioning
confidence: 99%