Analysis and control of micro-stepping characteristics of ultrasonic motor

Chen, Ning; Zheng, Jieji; Jiang, Xianliang; Fan, Sisi; Ding, Fan

doi:10.1007/s11465-019-0577-3

Cited by 14 publications

(9 citation statements)

References 30 publications

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“…Liu et al [111] conducted similar research to demonstrate the positive correlation between the stepping displacement and pulse number. As was observed by Chen et al, [112] the modal differences in the shutdown stage were associated with both amplitude and velocity at the instant of shutoff. Then, by constructing a simulation model, they determined the changes in the length of the contact and driving zone, as well as the changes in the input current, vibration state, output torque and axial pressure, based on which these rules were further explored.…”

Section: Low-voltage Drive and Open-loop Control Technology For Ultrasupporting

confidence: 69%

A Review of Application and Development Trends in Ultrasonic Motors

Li¹,

Wen²,

Jia³

et al. 2020

ES Mater. Manuf.

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The structure and performance of ultrasonic motors have gradually improved with the emergence of new materials, techniques, and structural forms. Therefore, the application scope of this technology is also expanding, especially in the field of high-end equipment. This paper conducts a review of research on the application status and progress at the frontier of research on ultrasonic motors. A summary and classification of both the status of application and cutting-edge research progress are presented, including the use of ultrasonic motors in aerospace, precision, biomedical and optical engineering and the influence on ultrasonic motor design resulting from the breakthrough in advanced processing and preparation technology, structural and functional integration technology, low voltage drives and open-loop control systems. Moreover, the performance of products developed with the aid of ultrasonic motors and representative devices are compared; and state of the art ultrasonic motor designs are discussed and summarized. Finally, potential future research efforts and prospects are highlighted.

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Section: Low-voltage Drive and Open-loop Control Technology For Ultrasupporting

confidence: 69%

A Review of Application and Development Trends in Ultrasonic Motors

Li¹,

Wen²,

Jia³

et al. 2020

ES Mater. Manuf.

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show abstract

“…According to the principle of mechanical vibration [17], before the A-phase of the stator is de-energized (the period before t 1 in Figure 3), the particle point, Q, on the stator near the equilibrium position, has a constant-amplitude vibration with driving frequency, ω q , and the amplitude of W max f . However, after the power is cut off (the period after t 1 in Figure 3), the particle point does not decay to the equilibrium position immediately.…”

Section: Traveling Standing Wave Amplitude Reduction Region (T Redut )mentioning

confidence: 99%

“…Therefore, the ability of the ultrasonic motor to work at an ultralow speed becomes the prerequisite to replacing the electromagnetic motor and to accurately adjusting the attitude of the satellite. To achieve this goal, some scholars have proposed a microstepping driving method to control the ultrasonic motor [14][15][16][17][18]. Omura et al [14] realized the low-speed control of the traveling wave ultrasonic motor by adjusting the voltage and phase.…”

Section: Introductionmentioning

confidence: 99%

“…Senjyu et al [16] adopted the motor speed control method, combining frequency conversion speed regulation and DC power PWM control to achieve the highest efficiency speed regulation control. Chen et al [17] managed the motor speed and displacement by controlling the number and driving period of the driving wave. Wang et al [18] controlled the motor speed and displacement by stimulating the first longitudinal vibration and the second bending vibration of the motor, and by controlling the number of driving waves, driving voltages, and the prepressure and driving frequencies.…”

Section: Introductionmentioning

confidence: 99%

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Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory

et al. 2021

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This paper proposes a driving method, the superimposed pulse driving method, that can make an ultrasonic motor run at a low speed. Although this method solves the periodic oscillation of speed in a traditional low-speed driving motor, it still has a small periodic fluctuation, which affects the stability of the speed. To reduce the fluctuation rate of the motor speed, the structure model and driving model of the motor are established, based on the theory of a beat traveling wave, and the motion characteristics of the particle point are analyzed in this paper. The simulation curve of the motor speed is obtained according to the stator and rotor contact model and the transfer model. The research shows that the driving method introduced in this paper causes the stator surface to generate a traveling beat wave, and the driving end of the stator generates an intermittent reciprocating vibration and drives the rotor rotation, which is the mechanism of low-speed operation when the driving method is used to drive the motor, as well as the reason for the periodic fluctuation of the motor speed. To improve the speed stability, this paper controlled the output performance of the motor by changing the two control variables—prepressure and frequency difference—and concluded that the variation trend of the average speed and speed volatility were consistent with the variation trend of the motor’s average speed determinant and the speed volatility determinant, respectively, which is verified by the velocity measurement experiment and the vibration measurement experiment. These insights lay the theoretical foundation for the velocity adjustment and stability optimization and, finally, the application of the new driving method is prospected.

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“…To date, most studies mainly focused on PZT properties, substrate architecture, and contact interface (Wang et al, 2019; Tian et al, 2020). The adhesive layer was usually ignored and the interface between the elastic substrate and PZT was assumed to be a rigid connection, in the modeling of motors for structural design (Liu et al, 2016; Ren et al, 2020), operation principle (He et al, 2019; Li et al, 2019), and control method (Chen et al, 2020a; Deng et al, 2019). In fact, the defect of the adhesive layer is one of the main reasons for the failure of the manufacture of piezoelectric motors.…”

Section: Introductionmentioning

confidence: 99%

Modeling and simulation of bonded-type piezoelectric linear motors considering the stress transfer in adhesive layer

Yao

Dai

et al. 2021

Journal of Intelligent Material Systems and Structures

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This paper provides a general framework for modeling bonded-type piezoelectric linear motors considering the stress transferred by adhesive layer. A three-dimensional static model of stator is first developed by the principle of minimum potential energy and finite element. The stress transferred by adhesive layer could be simulated and analyzed for arbitrary bonding conditions. Basing on the static stress-transfer analysis, a quasi-static stress acted to substrate by piezoelectric elements is assumed and integrated into the substrate dynamic model. A pure mechanical dynamic model is developed for the electromechanical coupling system of stator. Furthermore, the whole-machine dynamic model of motor is presented by incorporating the frictional contact force into the dynamic model of the stator and an analytical model of the mover. Finally, a bonded-type piezoelectric linear motor with V-shaped stator is investigated as an example for simulations and experiments. The methodology presented here for simulating the transferred load of adhesive layer in bonded-type piezoelectric motor as well as for estimating the vibration characteristics of stator and output performances of motor. It is believed that the proposed method would be helpful to design and manufacture the prototypes due to the wider applicability of allowing for irregular geometry and any bonding conditions.

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Analysis and control of micro-stepping characteristics of ultrasonic motor

Cited by 14 publications

References 30 publications

A Review of Application and Development Trends in Ultrasonic Motors

A Review of Application and Development Trends in Ultrasonic Motors

Research on Low-Speed Driving Model of Ultrasonic Motor Based on Beat Traveling Wave Theory

Modeling and simulation of bonded-type piezoelectric linear motors considering the stress transfer in adhesive layer

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