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Design of a Dual-Resonance Excitation Langevin Piezoelectric Actuator Using Taguchi Method

[+] Author Affiliations
Yu-Jen Wang, Kuo-Chieh Fu

National Sun Yat-sen University, Kaohsiung, Taiwan

Shyang-Jye Chang

National Yunlin University of Science and Technology, Yunlin, Taiwan

Chien-Erh Weng

National Kaohsiung Marine University, Kaohsiung, Taiwan

Paper No. ISPS2016-9506, pp. V001T02A002; 3 pages
doi:10.1115/ISPS2016-9506
From:
  • ASME 2016 Conference on Information Storage and Processing Systems
  • ASME 2016 Conference on Information Storage and Processing Systems
  • Santa Clara, California, USA, June 20–21, 2016
  • Conference Sponsors: Information Storage and Processing Systems Division
  • ISBN: 978-0-7918-4988-0
  • Copyright © 2016 by ASME

abstract

For injection molding, knock-out pin will leave ejector marks on the parts of product. While making micro-structured components, the pin for normal ejector system is usually bigger than the micro-structured one. It would leave marks while part ejection process and it would even destroy the exterior of micro-structured components sometimes. In order to avoid this situation, this research is to design a Langevin transducer using the theory of Smooth Impact Drive Mechanism (SIDM) as a linear actuator. The dimensions of the Langevin piezoelectric actuator was determined using the Taguchi method to set the first and third minimum impedance frequency ratio at nearly 1:2. The mold equipped with the double layer Langevin transducer could demold the parts without knock-out pin in the plastic injection molding process.

Copyright © 2016 by ASME

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