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Study on Transient Contact-Impact Characteristics and Driving Capability of Piezoelectric Stack Actuator

The transient contact-impact mechanism and driving capability of the piezoelectric stack actuator is analyzed using both experimental and theoretical methods. An experimental setup and its corresponding measurement approaches for the transient responses are designed. The launch range of the object r...

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Detalles Bibliográficos
Autores principales: Li, Yanze, Shen, Yunian, Xing, Qiaoping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6983117/
https://www.ncbi.nlm.nih.gov/pubmed/31906145
http://dx.doi.org/10.3390/s20010233
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author Li, Yanze
Shen, Yunian
Xing, Qiaoping
author_facet Li, Yanze
Shen, Yunian
Xing, Qiaoping
author_sort Li, Yanze
collection PubMed
description The transient contact-impact mechanism and driving capability of the piezoelectric stack actuator is analyzed using both experimental and theoretical methods. An experimental setup and its corresponding measurement approaches for the transient responses are designed. The launch range of the object resulting from the first contact-impact is measured through laser doppler vibrometer and the motion process is captured by high-speed camera. Experimental results illustrate that the launch range increases firstly and decreases subsequently as the frequency of the sine driving voltage increases. Meanwhile, considering the local viscoelastic contact deformation, a theoretical methodology including the mechanics model for the driving process is proposed. Based on the Lagrange equations of second kind, the governing equation of the driving system is derived. Transient responses are calculated using the fourth-order Runge–Kutta integration method. Contact forces and Poisson’s coefficient of restitution are calculated by the proposed theoretical method. The results of launch range show that the theoretical solutions have a good agreement with the experimental data. The peak value of contact force increases firstly and decreases subsequently with the increase of voltage frequency. In addition, the coefficient of restitutions is roughly 0.9 when f is greater than 3.5 kHz.
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spelling pubmed-69831172020-02-06 Study on Transient Contact-Impact Characteristics and Driving Capability of Piezoelectric Stack Actuator Li, Yanze Shen, Yunian Xing, Qiaoping Sensors (Basel) Article The transient contact-impact mechanism and driving capability of the piezoelectric stack actuator is analyzed using both experimental and theoretical methods. An experimental setup and its corresponding measurement approaches for the transient responses are designed. The launch range of the object resulting from the first contact-impact is measured through laser doppler vibrometer and the motion process is captured by high-speed camera. Experimental results illustrate that the launch range increases firstly and decreases subsequently as the frequency of the sine driving voltage increases. Meanwhile, considering the local viscoelastic contact deformation, a theoretical methodology including the mechanics model for the driving process is proposed. Based on the Lagrange equations of second kind, the governing equation of the driving system is derived. Transient responses are calculated using the fourth-order Runge–Kutta integration method. Contact forces and Poisson’s coefficient of restitution are calculated by the proposed theoretical method. The results of launch range show that the theoretical solutions have a good agreement with the experimental data. The peak value of contact force increases firstly and decreases subsequently with the increase of voltage frequency. In addition, the coefficient of restitutions is roughly 0.9 when f is greater than 3.5 kHz. MDPI 2019-12-31 /pmc/articles/PMC6983117/ /pubmed/31906145 http://dx.doi.org/10.3390/s20010233 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Yanze
Shen, Yunian
Xing, Qiaoping
Study on Transient Contact-Impact Characteristics and Driving Capability of Piezoelectric Stack Actuator
title Study on Transient Contact-Impact Characteristics and Driving Capability of Piezoelectric Stack Actuator
title_full Study on Transient Contact-Impact Characteristics and Driving Capability of Piezoelectric Stack Actuator
title_fullStr Study on Transient Contact-Impact Characteristics and Driving Capability of Piezoelectric Stack Actuator
title_full_unstemmed Study on Transient Contact-Impact Characteristics and Driving Capability of Piezoelectric Stack Actuator
title_short Study on Transient Contact-Impact Characteristics and Driving Capability of Piezoelectric Stack Actuator
title_sort study on transient contact-impact characteristics and driving capability of piezoelectric stack actuator
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6983117/
https://www.ncbi.nlm.nih.gov/pubmed/31906145
http://dx.doi.org/10.3390/s20010233
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