A study on the friction of a self-correction ultrasonic stepping motor

Chen, Y; Zhou, Tieying; Zhang, Q; Chen, X.Y; Chen, S.H

doi:10.1016/s0041-624x(02)00355-4

Cited by 11 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This type of USM works in such a way that a traveling wave in the stator drives the rotor to move while a standing wave in the stator controls the rotor to stop at a desired position [10]. Notice that the mechanism uses the traveling-wave contact of the vibration to cause mechanical frictional contact forces to rotate the rotor, whereas the node of vibration does not create motion.…”

Section: Operating Principlementioning

confidence: 99%

See 1 more Smart Citation

A new design method and half-step operation for ultrasonic stepping motors

Chau¹,

Shi²,

2003

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

In this paper, a systematic design method and a new half-step operation are proposed for ultrasonic stepping motors (USMs) which are based on the principle of spatially shifted standing vibrations. With emphasis on the combination of the order of vibration mode, the number of spatial phase shifts, the number of electrodes, and the number of simultaneously excited electrodes, the design equations and constraints are newly derived, hence, proposing the design procedure. The finite-element method and impedance measurement are also employed to investigate the vibration of the stator. By borrowing the control idea of electromagnetic stepping motors, the half-step operation is newly applied to this USM so that the step size can be further halved. An 80-step USM is prototyped. The proposed design method and half-step operation are well supported by experimentation.

show abstract

Section: Operating Principlementioning

confidence: 99%

“…As shown in Fig. 3(b), the step size from node P to node P can be easily determined as (10) Substituting and into (10), can be expressed as (11) As shown in Fig. 3(b), after times switching, the object moves a distance of an integer multiple of .…”

Section: Substitutingmentioning

confidence: 99%

A new design method and half-step operation for ultrasonic stepping motors

Chau¹,

Shi²,

2003

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

show abstract

“…To fabricate a precise positioning actuator, several stepper ultrasonic motors have been proposed. They can be divided into two types: one is achieved by a special mechanical structure, such as an ultrasonic stepping motor using spatially shifted standing vibrations [10] and standingwave self-correct stepping ultrasonic motors [11][12][13]; the other obtains precise positioning by controlling the drive circuits in several types of USMs [14][15]. The ultrasonic stepping motors using spatially shifted standing vibrations are based on the phenomena that a small object on the vibrating body moves to the nodal position of the vibration shape.…”

Section: Introductionmentioning

confidence: 99%

Bi-modes alternation stepping ultrasonic motors

Jin

Zhao

2008

Front. Mech. Eng. China

View full text Add to dashboard Cite

Based on the principle of alternative operation of two bending vibration modes in an annular stator, this paper presents a standing-wave stepping ultrasonic motor characterized by no accumulative errors driven by an open-loop control circuitry. The driving forces are generated from the motions of projections on the stator in two modes. The positioning of the motor is achieved by the cooperation between the stator projections and rotor teeth, and the number of the rotors determines the stepping angle of the motor. Two-phase sinusoidal signals corresponding to the two modal frequencies drive the motor bi-direction stepping rotation via a switch unit. The prototype runs steadily without miss-step on trial. The single-step angle displacement of the motor is 2.5u.

show abstract

“…One obtains precise positioning by controlling their driving circuits [2,3] . The other realizes stepping motion by special mechanical structure, such as mode conversion type stepping ultrasonic motors [4] and standing-wave type self-correct step ultrasonic motors [5][6][7]. The mode conversion type stepping ultrasonic motors are based on the phenomena that a small object on the vibrating body moves to the nodal position of vibration shape.…”

Section: Introductionmentioning

confidence: 99%

Linear stepping ultrasonic motor

Jin

Zhao

2007

J Electroceram

View full text Add to dashboard Cite

A 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 openloop control circuit, which provides single-phase sinusoidal signal via a switch unit to the vibrators. Its step displacement is 1 mm. The speed without load in one step is 7.69∼ 8.33 mm/s, and the blocking force is 0.12∼0.35 N in operating frequency 30 kHz and operation voltage 300 Vpp.

show abstract

A study on the friction of a self-correction ultrasonic stepping motor

Cited by 11 publications

References 4 publications

A new design method and half-step operation for ultrasonic stepping motors

A new design method and half-step operation for ultrasonic stepping motors

Bi-modes alternation stepping ultrasonic motors

Linear stepping ultrasonic motor

Contact Info

Product

Resources

About