Results 221 to 230 of about 16,970 (268)
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Optimization of a new type of ultrasonic linear motor
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2008This paper presents the design, the properties, and the optimization study of a new type of ultrasonic linear motor. Numerical modeling has been carried out and simulations with software have been realized. To avoid performing a large number of simulations, sensitivity analysis has been carried out, in particular using design of experiments.
José M, Fernandez, Yves, Perriard
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A modified ultrasonic linear motor
Sensors and Actuators A: Physical, 2000A prototype for modified multi-mode ultrasonic linear motor has been developed. In contrast to the other multi-mode ultrasonic linear motors which use single layer piezoelectric ceramics as actuators bonded on the surface of elastic body, it uses actuators made of multi-layer piezoelectric actuators clamped in elastic body with compressive pre-load ...
Baonian Zhai +4 more
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A study of linear ultrasonic motor
2009 International Conference on Applied Superconductivity and Electromagnetic Devices, 2009Ultrasonic motor is a novel actuator, which has been developing very fast since its appearance in 1970s. Many studies have been done, in both theoretic and practical fields. With design experience, review of linear ultrasonic motor drive mechanism and classification methods is outlined. The basic design means and general analysis ways are sum up. ANSYS
Zelin Fu, Hui Guo
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Twisting Linear to Orbital Angular Momentum in an Ultrasonic Motor
Advanced Materials, 2022AbstractAn ultrasonic motor built with a contactless meta engine block (MEB) is designed and experimentally demonstrated for twisting the linear momentum of sound emanating from a Helmholtz resonator‐based metasurface into orbital angular momentum (OAM). The MEB is capable of hosting highly efficient excitations of eigenmodes carrying desired OAM whose
Jingjing Liu +7 more
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Linear stepping ultrasonic motor
Journal of Electroceramics, 2007A linear stepping ultrasonic motor, based on vibrators alternative driving and slider grooves positioning, is proposed in this paper. The step-by-step movements can be obtained by exciting two vibrators of stator by turns. The motor is capable of bi-direction stepping movements without accumulative position errors driven by an open-loop control circuit,
Jiamei Jin, Chunsheng Zhao
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A four-legged linear ultrasonic motor: Design and experiments
Review of Scientific Instruments, 2020We designed a four-legged linear ultrasonic motor with a new structure. It uses the in-plane first-order longitudinal vibration mode and the out-of-plane anti-symmetric vibration mode, which are superimposed to produce linear motion. The motor consists of a stator and four groups of eight piezoelectric ceramic sheets.
Ruikun Niu, Hua Zhu, Chunsheng Zhao
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Linear piezoelectric ultrasonic motor
The Journal of the Acoustical Society of America, 2006The present invention relates to a linear motor which draws its operating power from ultrasonic vibration above the frequency of 20 kHz which is generated by piezoelectric ceramic. More particularly, the invention relates to a linear piezoelectric ultrasonic motor which linearly operates a slider due to a frictional force generated by applying ...
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The Journal of the Acoustical Society of America, 1994
A linear ultrasonic motor which presses a rail against an ultrasonic vibrator, which is substantially elliptically vibrating and conducts relative movement, wherein a protrusion or a groove is provided such that the sectional form of the rail is concave, convex, trapezoidal or triangular.
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A linear ultrasonic motor which presses a rail against an ultrasonic vibrator, which is substantially elliptically vibrating and conducts relative movement, wherein a protrusion or a groove is provided such that the sectional form of the rail is concave, convex, trapezoidal or triangular.
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Modal Analysis on Linear Ultrasonic Motor
Applied Mechanics and Materials, 2015As the expanding applications of linear ultrasonic motor, the demand for high-thrust linear ultrasonic motor in the aerospace and industrial robots is growing. Consequently, for a high-thrust linear motor, it’s stator model was established according to the actual structure of the motor stator and was also analyzed of the motor stator modal by the ...
Lei Luo, Qian Luo
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A miniature standing wave linear ultrasonic motor
Sensors and Actuators A: Physical, 2021Abstract A miniature linear ultrasonic motor that utilizes the principle of coupling the first-order longitudinal vibration mode with the second-order bending vibration mode is proposed, which is currently the smallest linear ultrasonic actuator that uses this principle in the known literature.
Jun Jian Zhang +5 more
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