Displacement Properties of Newly Developed 3-Dimensional Piezoelectric Actuator at Various AC Frequencies
The electromechanical properties of a newly proposed 3-dimensional piezoelectric actuator have been investigated. Especially, the effects of 3-dimensional geometry on the maximum tip displacement were carefully investigated. As a result, it was found that the maximum strain of the 3-dimensional piezoelectric device was significantly enhanced up to 4.5 times higher than that of a disk shape device. This data was in good agreement with the finite element model analysis of strains and vibration modes. Moreover, the field -induced displacement stability of dome-shaped 3- dimensional piezoelectric actuator at various ac freguencies was superior to Rainbow actuator.
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
M. S. Yoon et al., "Displacement Properties of Newly Developed 3-Dimensional Piezoelectric Actuator at Various AC Frequencies", Materials Science Forum, Vols. 534-536, pp. 1441-1444, 2007