Operating Characteristics of a Same-Phase Drive-Type Ultrasonic Motor Using a Flexural Disk Vibrator

Takano, Takehiro; Tomikawa, Yoshirô; Kusakabe, Chiharu

doi:10.1143/jjap.38.3322

Cited by 7 publications

(5 citation statements)

References 4 publications

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“…Bi-directional ultrasonic motors using mode coupling between the longitudinal and bending modes caused by the asymmetry shape (Aoyagi and Tomikawa, 1993; Aoyagi et al, 1992; Tamura et al, 2007) or crystal anisotropy (Tamura et al, 2008, 2010) of the stator were reported; the coupling effect could provide a pair of modes by asymmetry shape or crystal anisotropy; coupling mode is allotted to push the load in each direction; however, the output performances are not equal in each moving direction. Utilizing two same bending modes of a circle stator (Aoyagi et al, 2002; Takano et al, 1992, 1994, 1999), the same output performances in reverse direction were obtained; however, this type of structures was not suitable for effectively moving a linear slider directly.…”

Section: Working Principles and Configurationsmentioning

confidence: 98%

“…The theory of two in-plane modes of a ring excited by a single-phase drive was discussed (Cagatay et al, 2003; Koc et al, 2000, 2002; Peter, 1987; Sashida, 1982; Ueha et al, 1993). Tubular ultrasonic motors utilizing only one drive signal were developed (Aoyagi et al, 2002; Cagatay et al, 2003; Chen et al, 2015; Friend et al, 2003; Ishii et al, 1993; Koc et al, 2000, 2002; Ma et al, 2016; Takano et al, 1992, 1994, 1999; Tamura et al, 2010; Ueha et al, 1993); This motor has two orthogonal degenerative bending modes, and only one excitation signal was supplied to one PZT element at a frequency between the resonance frequencies of the two modes, activating both modes and providing oscillating movement. The rotation direction could be reversed by changing the voltage to the other PZT element.…”

Section: Working Principles and Configurationsmentioning

confidence: 99%

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Review on single-phase driven ultrasonic motors

BingJie

et al. 2022

Journal of Intelligent Material Systems and Structures

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In recent decades, various single-phase drive ultrasonic motors have emerged, and only a single excitation signal is used in their working states. Single-phase driven ultrasonic motors have the benefits of most ultrasonic motors, as well as the advantages of a simple driving circuit construction, low cost, high design flexibility, and high reliability, among others. According to the working principles, they are divided into three types: the vibration mode alternating type, the vibration mode coupling type, the vibration mode converting type. This paper summarizes various types of single-phase ultrasonic motors. The three types of the working principles and its representative structures are explained; output performances of the single-phase ultrasonic motors are described; then, practical and potential applications of the single-phase ultrasonic motors are introduced; finally, the research of single-phase ultrasonic motors are reviewed, and its development prospect is prospected. This review is helpful for a comprehensive understanding of single-phase drive ultrasonic motors. This paper offers the groundwork for the development of a novel single-phase driven ultrasonic motor with improved mechanical output.

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Section: Working Principles and Configurationsmentioning

confidence: 98%

Section: Working Principles and Configurationsmentioning

confidence: 99%

Review on single-phase driven ultrasonic motors

BingJie

et al. 2022

Journal of Intelligent Material Systems and Structures

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“…For example, Sashida [11] used an oblique elasticity slice located at one end of a Langevin vibrator to transform the vibrator's longitudinal vibration into oblique elliptical vibration of the driving foot to achieve unidirectional rotary movement. Takano et al [12] developed a flexural disk that vibrates in two degradation modes to generate the ideal movement under a single-phase drive. In addition, the concept of single-phase asymmetric excitation with symmetric structure was proposed.…”

Section: Introductionmentioning

confidence: 99%

A novel compact bolted-type piezoelectric actuator excited by two excitation methods: design, simulation, and experimental investigation

Liu¹,

Fu²,

Wang³

et al. 2023

Smart Mater. Struct.

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A novel bolted-type piezoelectric actuator excited by two excitation methods was proposed and investigated in this paper using both simulations and experiments. Different from most existing piezoelectric actuators, the proposed actuator can be excited by two different excitation methods, namely single-phase excitation method and dual-phase excitation method. The structure of the actuator was depicted and its geometric dimensions were presented. Furthermore, the working principles of the proposed actuator under these methods were illustrated in detail, and the vibration characteristics of the driving foot were analyzed using the finite element method. In addition, a prototype was fabricated and an experimental system was set up to evaluate the output performance of the prototype. The experimental results indicated that the actuator achieved a maximum velocity of 483.7 mm s-1 and a maximum thrust of 3.4 kg with dual-phase excitation, and a maximum velocity of 284.6 mm s-1 and a maximum thrust of 2.2 kg with single-phase excitation.

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“…Using the same-form degenerated bending modes of a stator disk with projection teeth, the singlephase driving and same characteristics in reverse operation were obtained. [22][23][24][25] The projection teeth generate a driving force in the circumferential direction to rotate the disk rotor whose center is aligned with the stator disk. This structure is not suitable to effectively move a linear slider directly.…”

Section: Introductionmentioning

confidence: 99%

Single-Phase Drive Ultrasonic Linear Motor Using a Linked Twin Square Plate Vibrator

Yokoyama

Tamura

Masuda³

et al. 2013

Jpn. J. Appl. Phys.

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Recent observations from RHESSI have revealed that the number of non-thermal electrons in the coronal part of a flaring loop can exceed the number of electrons required to explain the hard X-ray-emitting footpoints of the same flaring loop. Such sources cannot, therefore, be interpreted on the basis of the standard collisional transport model, in which electrons stream along the loop while losing their energy through collisions with the ambient plasma; additional physical processes, to either trap or scatter the energetic electrons, are required. Motivated by this and other observations that suggest that high-energy electrons are confined to the coronal region of the source, we consider turbulent pitch-angle scattering of fast electrons off low-frequency magnetic fluctuations as a confinement mechanism, modeled as a spatial diffusion parallel to the mean magnetic field. In general, turbulent scattering leads to a reduction of the collisional stopping distance of non-thermal electrons along the loop, and hence to an enhancement of the coronal hard X-ray source relative to the footpoints. The variation of source size L with electron energy E becomes weaker than the quadratic behavior pertinent to collisional transport, with the slope of L(E) depending directly on the mean free path λ associated with the non-collisional scattering mechanism. Comparing the predictions of the model with observations, we find that λ ∼ (10 8 -10 9 ) cm for ∼30 keV, less than the length of a typical flaring loop and smaller than, or comparable to, the size of the electron acceleration region.

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Operating Characteristics of a Same-Phase Drive-Type Ultrasonic Motor Using a Flexural Disk Vibrator

Cited by 7 publications

References 4 publications

Review on single-phase driven ultrasonic motors

Review on single-phase driven ultrasonic motors

A novel compact bolted-type piezoelectric actuator excited by two excitation methods: design, simulation, and experimental investigation

Single-Phase Drive Ultrasonic Linear Motor Using a Linked Twin Square Plate Vibrator

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