Optimal design of ultrasonic motor using evolution strategy and finite element method

Rho, Jong-Seok; Lee, Chang-Hwan; Jung, Hyun–Kyo

doi:10.3233/jae-2007-763

Cited by 13 publications

(7 citation statements)

References 3 publications

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“…For the intermittent type ultrasonic motor, the micro push of vibrator to rotor is determined by the motion trajectory of the contact point, and the vibration amplitude alone cannot determine the work that the vibrator does to rotor. Some of the previous works on the optimal design of piezoelectric actuators (Silva, 2000; Bouchilloux and Uchino, 2003; Silva, 2003; Fernandez and Perriard, 2006; Flueckiger et al , 2007; Rho et al , 2007) only take the vibration amplitude in one direction into consideration, while the vibration amplitude in another direction and the phase difference between two directions are not considered. In this paper, the work that vibrator does to rotor is calculated as objective function.…”

Section: Objective Functionmentioning

confidence: 99%

Exciting electrode optimization of a piezoceramic plate type ultrasonic motor by combining artificial immune algorithm and finite element analysis

Yang

Pang

et al. 2013

Engineering Computations

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PurposeThe purpose of this paper is to propose an optimization method by combining artificial immune algorithm and finite element analysis to find the optimal exciting electrode of a piezoceramic plate type ultrasonic motor vibrator.Design/methodology/approachThe artificial immune algorithm is selected as optimizer for its merit of fast convergence to global optimal solution. The finite element analysis is used to calculate the motion trajectory of contact point. The objective function is the work that the vibrator does to rotor. The design variables are the boundaries of exciting electrode on piezoceramic plate vibrator surface.FindingsThe calculated results and the experimental results show that using this method, both the position and the size of optimal exciting electrode of this ultrasonic motor can be quickly and accurately determined.Originality/valueIn order to successfully design an ultrasonic motor, both the position and the size of the exciting electrode must be investigated, so as to change more electric energy into mechanical energy. In this paper, an optimization method by combining artificial immune algorithm and finite element analysis is proposed for the exciting location optimization of a piezoceramic plate type ultrasonic motor to obtain large power output.

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Section: Objective Functionmentioning

confidence: 99%

Exciting electrode optimization of a piezoceramic plate type ultrasonic motor by combining artificial immune algorithm and finite element analysis

Yang

Pang

et al. 2013

Engineering Computations

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“…It enlarged the vibrating amplitudes of the vibrator and the motor efficiency was increased (Akira, 1987). Using the finite element method, an optimal design methodology for the ultrasonic piezoelectric motors was presented (Rho. 2007).…”

Section: Introductionmentioning

confidence: 99%

Speed control of an electromechanical integrated harmonic piezodrive system

Jiang

2018

JAMDSM

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The Authors proposed an electromechanical integrated harmonic piezodrive system. The stability of the output speed of the drive system has important effects on its operating performance. Here, the electromechanical coupled torque equations of the drive system are presented. The transfer function of the speed control system is derived based on the torque equations. The speed fluctuation of the harmonic piezodrive system is analyzed. With a speed feedback controller and a periodic compensated control voltage, the speed fluctuation of the drive system was removed, and the stability and response speed of the control system was improved.

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“…For the design of electrical machines, the major challenge of successful full-scale development is to address the competing objectives, such as improved performance, machine reliability, and reduced cost. Optimisation of electrical machine is a kind of multi-variable and multi-modal problem [1]- [8]. So an accurate, high fidelity model should be obtained by using the numerical finite element method (FEM), as well as multiphysical characteristic of electrical machine should be taken into account.…”

Section: Introductionmentioning

confidence: 99%

Novel optimisation algorithm of electrical machines

Baker

Cao

2016

8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

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This paper presents a case study for multi-variable and multimodal design optimisation of a doubly fed induction generator (DFIG) based on surrogate-model optimisation algorithm. The DFIG's winding of stator and rotor are optimised to obtain higher efficiency for rewinding purposes. First, a Latin hypercube design is selected as the design of experiments to obtain sampling points. Then, the surrogate model is constructed using Kriging Model (KRG) method based on the Latin hypercube design. Finally, the particle swarm optimisation algorithm is applied in conjunction with the finite element method to achieve the machine design optimisation.

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Optimal design of ultrasonic motor using evolution strategy and finite element method

Cited by 13 publications

References 3 publications

Exciting electrode optimization of a piezoceramic plate type ultrasonic motor by combining artificial immune algorithm and finite element analysis

Exciting electrode optimization of a piezoceramic plate type ultrasonic motor by combining artificial immune algorithm and finite element analysis

Speed control of an electromechanical integrated harmonic piezodrive system

Novel optimisation algorithm of electrical machines

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