A novel ultrasonic motor with a built-in clutch mechanism for a force-feed-back actuator

Aovagi, M.; Tomikawa, Takehiko; Takano, Takehiro

doi:10.1109/ultsym.2004.1418285

Cited by 6 publications

(10 citation statements)

References 1 publication

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“…One of solutions of this problem is to have a static clutch mechanism within a USM. A novel USM equipping with a clutch mechanism has been proposed and examined in [75]. The principle of the adopted USM, the development subjects, design procedure, experimental results, and details of the application to the motor-driven potentiometer have been described in [76].…”

Section: Applications Of the Ultrasonic Motorsmentioning

confidence: 99%

Ultrasonic motors: Their models, drives, controls and applications

Bekiroğlu

2007

J Electroceram

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In the last decades piezoelectrically driven ultrasonic motors have become alternative actuators to the conventional electromagnetic motors especially for precise and accurate servo positioning applications. Different types of ultrasonic motors have been constructed and manufactured. Several drive systems have been designed, implemented and proposed for these motors. A variety of control techniques have been applied to them. The research given in this study covers bases of the ultrasonic motors. Theoretical background, modeling, drive systems, control techniques and applications of the ultrasonic motors have been introduced. Firstly, the general overview has been given. Then, modeling studies focused on performance estimation and analysis of ultrasonic motors have been examined. Afterwards, drive systems and control techniques of ultrasonic motors have been investigated. Furthermore, an example drive and control system has been presented. This drive system has been designed as to be controlled digitally. In addition, the important industrial and research applications of these motors have been included. The presented study has been arranged as a review of ultrasonic motors. The important points of specifications, models, drive systems and control methods of the ultrasonic motors have been emphasized.

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Section: Applications Of the Ultrasonic Motorsmentioning

confidence: 99%

Ultrasonic motors: Their models, drives, controls and applications

Bekiroğlu

2007

J Electroceram

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“…In previous years, many researchers have explored various prototypes and control methods for USMs used in haptic interfaces. Some of them use an indirect structure to achieve the force feedback [12,13] and some others use a model-based torque control method to achieve the force feedback of USM [14][15][16]. In fact, the motion of the USM is generated by the mechanical vibration of the stator and the friction drive between the rotor and stator.…”

Section: Introductionmentioning

confidence: 99%

Design and Impedance Control of a Traveling Wave Ultrasonic Motor with a Spherical Rotor

Song

Sun

2019

Applied Sciences

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A traveling wave ultrasonic motor (TWUM) with a spherical rotor was designed and fabricated for a haptic interface. The mechanical characteristics testbed was set up to test the performance of the motor under the modulation of frequency and phase difference, as well as for conducting haptic interaction, and the phase difference modulation based on certain frequency was adopted as the driving mode for the proposed motor. Due to the complexity and uncertainty of the contact mechanics of the stator and rotor, the direct torque control effect of the TWUM is not ideal for the force feedback. In this paper, the impedance control method was adopted to realize the force interaction based on positional proportional–integral–derivative (PID) control. The virtual linear spring and virtual wall experiments are conducted to verify the effect of the proposed method. Results show that the position-based impedance control method has a better effect than direct torque control for the haptic interaction based on an ultrasonic motor (USM).

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“…The authors have also developed an MDOF SUSM whose stator vibrator with an annular plate can excite multiple vibration modes. [13][14][15] The purpose of this research is to increase the torque of the MDOF SUSM using an annular stator vibrator [16][17][18] and to downsize the MDOF SUSM.…”

Section: Introductionmentioning

confidence: 99%

“…The sandwich structure can hold the spherical rotor between two stator vibrators. 13) Each stator vibrator can excite five vibration modes, and the spherical rotor can rotate on three axes. This simple structure has both a rotor support and a preload mechanism, and the miniaturization and simplification of this type of MDOF SUSM are improved.…”

Section: Introductionmentioning

confidence: 99%

Examination of Sandwich-Type Multidegree-of-Freedom Spherical Ultrasonic Motor

Aoyagi

Takano

et al. 2010

Jpn. J. Appl. Phys.

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A sandwich-type multidegree-of-freedom (MDOF) spherical ultrasonic motor (SUSM) is newly proposed. The motor consists of a spherical rotor and two stator vibrators holding the rotor. This structure has both a rotor support and a preload mechanism. The stator excites five vibration modes, and the rotor can rotate on three axes. An experiment of a torque composition of two stators was carried out. The contact surface between the rotor and the stators forms a spherical surface. Moreover, a displacement magnification mechanism, which was used in the former model to rotate on the Z-axis, is no longer necessary. Hence the stator is simpler in construction than the former model. In this paper, we describe the construction and the operating principle of the MDOF ultrasonic motor, modal analysis results for the stator, and some measurement results from trial manufacturing. The miniaturization of the motor and increase in torque were successfully realized.

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A novel ultrasonic motor with a built-in clutch mechanism for a force-feed-back actuator

Cited by 6 publications

References 1 publication

Ultrasonic motors: Their models, drives, controls and applications

Ultrasonic motors: Their models, drives, controls and applications

Design and Impedance Control of a Traveling Wave Ultrasonic Motor with a Spherical Rotor

Examination of Sandwich-Type Multidegree-of-Freedom Spherical Ultrasonic Motor

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