Electromechanical dynamics model of ultrasonic transducer in ultrasonic machining based on equivalent circuit approach

Jian Guo Zhang, Zhi Li Long, Wen Ju Ma, Guang Hao Hu, Yang Min Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


Ultrasonic transducer is a piezoelectric actuator that converts AC electrical energy into ultrasonic mechanical vibration to accelerate the material removal rate of workpiece in rotary ultrasonic machining (RUM). In this study, an impedance model of the ultrasonic transducer is established by the electromechanical equivalent approach. The impedance model not only facilitates the structure design of the ultrasonic transducer, but also predicts the effects of different mechanical structural dimensions on the impedance characteristics of the ultrasonic transducer. Moreover, the effects of extension length of the machining tool and the tightening torque of the clamping nut on the impedance characteristics of the ultrasonic transducer are investigated. Finally, through experimental analysis, the impedance transfer function with external force is established to analyze the dynamic characteristics of machining process.

Original languageEnglish
Article number1405
JournalSensors (Switzerland)
Issue number6
Publication statusPublished - 21 Mar 2019


  • Equivalent circuit
  • Impedance model
  • Rotary ultrasonic machining (RUM)
  • Ultrasonic transducer

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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