Parameters identification and contact analysis of traveling wave ultrasonic motor based on measured force and feedback voltage

Shiyang Li, Deyue Li, Ming Yang, Wenwu Cao

Research output: Contribution to journalArticle

Abstract

In previous studies, contact models of traveling-wave ultrasonic motor (TWUSM) only considered the effect of the preload on the resonance frequency, and were based on theoretical calculations or assumptions because vibration parameters in working conditions are hard to measure. In this paper, a novel model and measurement method for contact analysis of TWUSM are proposed. The proposed measurement method enables the determination of vibration parameters during motor operation. Our model differs from previous reported models in three aspects: vibration parameters are identified based on measured force and feedback voltage rather than theoretical assumptions; the simultaneous effects of the preload force on the resonance frequency and vibration amplitude were analyzed and validated; some phenomena in working conditions, such as the starting-up voltages and working ranges under different preload forces, can be predicted and analyzed. The feasibility and effectiveness of this model was verified by the good agreement between the measured and calculated results. Our work provides a very useful and convenient way for performance prediction, working range choice and control of TWUSM.

Original languageEnglish (US)
Pages (from-to)201-208
Number of pages8
JournalSensors and Actuators, A: Physical
Volume284
DOIs
StatePublished - Dec 1 2018

Fingerprint

parameter identification
Ultrasonic waves
traveling waves
Identification (control systems)
ultrasonics
Feedback
Electric potential
electric potential
vibration
performance prediction
Vibrations (mechanical)

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

Cite this

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title = "Parameters identification and contact analysis of traveling wave ultrasonic motor based on measured force and feedback voltage",
abstract = "In previous studies, contact models of traveling-wave ultrasonic motor (TWUSM) only considered the effect of the preload on the resonance frequency, and were based on theoretical calculations or assumptions because vibration parameters in working conditions are hard to measure. In this paper, a novel model and measurement method for contact analysis of TWUSM are proposed. The proposed measurement method enables the determination of vibration parameters during motor operation. Our model differs from previous reported models in three aspects: vibration parameters are identified based on measured force and feedback voltage rather than theoretical assumptions; the simultaneous effects of the preload force on the resonance frequency and vibration amplitude were analyzed and validated; some phenomena in working conditions, such as the starting-up voltages and working ranges under different preload forces, can be predicted and analyzed. The feasibility and effectiveness of this model was verified by the good agreement between the measured and calculated results. Our work provides a very useful and convenient way for performance prediction, working range choice and control of TWUSM.",
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Parameters identification and contact analysis of traveling wave ultrasonic motor based on measured force and feedback voltage. / Li, Shiyang; Li, Deyue; Yang, Ming; Cao, Wenwu.

In: Sensors and Actuators, A: Physical, Vol. 284, 01.12.2018, p. 201-208.

Research output: Contribution to journalArticle

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