Design and performance testing of an ultrasonic linear motor with dual piezoelectric actuators
| Autor: | Nantakan Muensit, Pruittikorn Smithmaitrie, Panumas Suybangdum, P. Laoratanakul |
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| Rok vydání: | 2012 |
| Předmět: |
Engineering
Acoustics and Ultrasonics business.industry Stator Acoustics Linear elasticity Structural engineering Linear actuator Linear motor Computer Science::Other law.invention Computer Science::Robotics Quantitative Biology::Subcellular Processes law Piezoelectric motor Ultrasonic motor PMUT Electrical and Electronic Engineering business Actuator Instrumentation |
| Zdroj: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 59(5) |
| ISSN: | 1525-8955 |
| Popis: | In this work, design and performance testing of an ultrasonic linear motor with dual piezoelectric actuator patches are studied. The motor system consists of a linear stator, a pre-load weight, and two piezoelectric actuator patches. The piezoelectric actuators are bonded with the linear elastic stator at specific locations. The stator generates propagating waves when the piezoelectric actuators are subjected to harmonic excitations. Vibration characteristics of the linear stator are analyzed and compared with finite element and experimental results. The analytical, finite element, and experimental results show agreement. In the experiments, performance of the ultrasonic linear motor is tested. Relationships between velocity and pre-load weight, velocity and applied voltage, driving force and applied voltage, and velocity and driving force are reported. The design of the dual piezoelectric actuators yields a simpler structure with a smaller number of actuators and lower stator stiffness compared with a conventional design of an ultrasonic linear motor with fully laminated piezoelectric actuators. |
| Databáze: | OpenAIRE |
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