Stochastic micro-vibration response of a spherically symmetric piezoelectric shell structure as sensor

Zu-guang Ying, Ju Feng

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The micro-vibration monitoring and control of vibration-sensitive precision facilities are important and the accurate measurement of micro-vibrations is necessary. The piezoelectric sensors such as piezoelectric shell structure have better electrical-mechanical coupling properties and less effect of bulk and weight. This paper studies the response characteristics of an interceptive spherical piezoelectric shell under stochastic boundary micro-vibration excitations. The equation for electric potential is integrated, and the displacement is transformed and expanded to yield the ordinary differential equations for the shell. The frequency-response function, power spectral density and correlation function matrices of the shell system response are derived. Then the root-mean-square displacement, stress and electric potential of the piezoelectric shell can be calculated. The numerical results are given to illustrate the stochastic electrical-mechanical coupling properties and the relation between boundary electric potential responses and micro-vibration excitations.
Original languageEnglish
Title of host publication 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)
Number of pages4
PublisherIEEE
Publication date2011
ISBN (Print)9781467310789
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) - Shenzhen, China
Duration: 9 Dec 201111 Dec 2011

Conference

Conference 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)
CountryChina
CityShenzhen
Period09/12/201111/12/2011

Keywords

  • Engineering
  • Physics
  • Piezoelectric spherical shell
  • Micro-vibration excitation
  • Stochastic response

Cite this

Ying, Z., & Feng, J. (2011). Stochastic micro-vibration response of a spherically symmetric piezoelectric shell structure as sensor. In 2011 Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA) IEEE. https://doi.org/10.1109/SPAWDA.2011.6167176