Title :
Vibration of a functionally graded piezoelectric spherical shell filled with fluid
Author :
Bian, Zu-guang ; Liu, Chen-bin ; Chen, Wei-qiu
Author_Institution :
Ningbo Inst. of Technol., Zhejiang Univ., Ningbo, China
Abstract :
Summary form only given. Nowadays piezoelectric composites are widely used as integrated structural elements including plates and shells. When the concept of functionally graded material is introduced, piezoelectric structures exhibit more advantages. The present paper focuses on the free vibration characteristic of a fluid-filled spherical shell, which consists of functionally graded piezoceramic. The radial inhomogeneity is approached by an approximate laminated model. To obtain a three-dimensional solution more conveniently and efficiently, a mixed method based on state space method is employed. At the end of this paper, some numerical examples are presented, in which the effect of related parameters on the vibration is discussed.
Keywords :
functionally graded materials; piezoceramics; vibrations; coupled vibration; fluid-filled spherical shell; free vibration characteristic; functionally graded material; functionally graded piezoceramic; functionally graded piezoelectric spherical shell; integrated structural elements; laminated model; piezoelectric composites; piezoelectric structures; plates; radial inhomogeneity; state space method; Civil engineering; Differential equations; Erbium; Frequency; Manufacturing; Partial differential equations; Piezoelectric materials; State-space methods; Stress; Vibrations; Coupled vibration; functionally graded piezoceramic; spherical shell; state space method;
Conference_Titel :
Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) and 2009 China Symposium on Frequency Control Technology, Joint Conference of the 2009 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4950-7
DOI :
10.1109/SPAWDA.2009.5428885
