Development of an innovative pre-stressed PZT actuator by FEA and experiment verification

Yi-Cheng Huang, Chi Fan Chen

研究成果: Conference contribution

2 引文 (Scopus)

摘要

In this paper, a novel redesign of the prestress mechanism of the stack-type piezoelectric ceramic actuator is provided. Belleville (disc) springs which have a specific height-to-thickness ratio are constructed to generate a constant pre-stress force to the PZT and operated in a special condition. The prestress mechanism is not only used to against the tensile stress but also used to improve the output performance of the actuator. The simulation of the structural behavior is constructed and analyzed in ATILA program by modifying the related parameters of the piezoelectric and the elastic materials, the modal and harmonic analysis are both established in the FEA model. The feasibility of the pre-stress experiment is determined by the simulation result subsequently in this paper. The comparison of the output force and the natural frequency of the pretress mechanism between the different settings of the actuator designed in this study and the commercial products reveal that the linearity of the output force can be maintain and the new prestress mechanism exhibits an extremely low natural frequency which approach to zero as height-to-thickness ratio of the Belleville springs equal to √2. It means our new mechanical concept of the actuator can effectively promote the output efficiency which preserves the output force linearity of the piezoelectric ceramic; the excitation of the PZT or external vibration cannot establish the resonant frequency condition due to the improved design of the prestress mechanism.

原文English
主出版物標題2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Proceedings
頁面1452-1457
頁數6
DOIs
出版狀態Published - 2007 十二月 1
事件2007 IEEE International Symposium on Industrial Electronics, ISIE 2007 - Caixanova - Vigo, Spain
持續時間: 2007 六月 42007 六月 7

出版系列

名字IEEE International Symposium on Industrial Electronics

Other

Other2007 IEEE International Symposium on Industrial Electronics, ISIE 2007
國家Spain
城市Caixanova - Vigo
期間07-06-0407-06-07

指紋

Actuators
Finite element method
Natural frequencies
Piezoelectric ceramics
Experiments
Harmonic analysis
Modal analysis
Tensile stress
Vibrations (mechanical)

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

引用此文

Huang, Y-C., & Chen, C. F. (2007). Development of an innovative pre-stressed PZT actuator by FEA and experiment verification. 於 2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Proceedings (頁 1452-1457). [4374815] (IEEE International Symposium on Industrial Electronics). https://doi.org/10.1109/ISIE.2007.4374815
Huang, Yi-Cheng ; Chen, Chi Fan. / Development of an innovative pre-stressed PZT actuator by FEA and experiment verification. 2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Proceedings. 2007. 頁 1452-1457 (IEEE International Symposium on Industrial Electronics).
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abstract = "In this paper, a novel redesign of the prestress mechanism of the stack-type piezoelectric ceramic actuator is provided. Belleville (disc) springs which have a specific height-to-thickness ratio are constructed to generate a constant pre-stress force to the PZT and operated in a special condition. The prestress mechanism is not only used to against the tensile stress but also used to improve the output performance of the actuator. The simulation of the structural behavior is constructed and analyzed in ATILA program by modifying the related parameters of the piezoelectric and the elastic materials, the modal and harmonic analysis are both established in the FEA model. The feasibility of the pre-stress experiment is determined by the simulation result subsequently in this paper. The comparison of the output force and the natural frequency of the pretress mechanism between the different settings of the actuator designed in this study and the commercial products reveal that the linearity of the output force can be maintain and the new prestress mechanism exhibits an extremely low natural frequency which approach to zero as height-to-thickness ratio of the Belleville springs equal to √2. It means our new mechanical concept of the actuator can effectively promote the output efficiency which preserves the output force linearity of the piezoelectric ceramic; the excitation of the PZT or external vibration cannot establish the resonant frequency condition due to the improved design of the prestress mechanism.",
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Huang, Y-C & Chen, CF 2007, Development of an innovative pre-stressed PZT actuator by FEA and experiment verification. 於 2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Proceedings., 4374815, IEEE International Symposium on Industrial Electronics, 頁 1452-1457, 2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Caixanova - Vigo, Spain, 07-06-04. https://doi.org/10.1109/ISIE.2007.4374815

Development of an innovative pre-stressed PZT actuator by FEA and experiment verification. / Huang, Yi-Cheng; Chen, Chi Fan.

2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Proceedings. 2007. p. 1452-1457 4374815 (IEEE International Symposium on Industrial Electronics).

研究成果: Conference contribution

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Huang Y-C, Chen CF. Development of an innovative pre-stressed PZT actuator by FEA and experiment verification. 於 2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Proceedings. 2007. p. 1452-1457. 4374815. (IEEE International Symposium on Industrial Electronics). https://doi.org/10.1109/ISIE.2007.4374815