Affiliations: [a] School of Mechanical Engineering, Nanjing University
of Science and Technology, Nanjing, Jiangsu, China | [b] School of Mechatronic Engineering, Harbin Institute of
Technology, Harbin, Heilongjiang, China
Correspondence:
[*]
Corresponding author: X.J. Wang, School of Mechanical
Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu,
China. Tel.: +86 25 8431 5327; E-mail: xjwang@njust.edu.cn
Abstract: Lead lanthanum zirconate titanate (PLZT) ceramics can transform the
light energy into the mechanical energy without electromagnetic noise. The
optical and direct driven based on PLZT's photostrictive effect, which is also
green driven and non-contact driven, has many advantages in micro-driven and
structure vibration control. However the existing constitutive equations of
PLZT ceramics do not consider the influence from both light intensity and PLZT
ceramic sizes (i.e. length, width and thickness) to photostrictive effect. In
this paper, the effect of the light intensity, aspect ratio and the thickness
of the PLZT ceramic on the photostrictive strain is researched based on the
equivalent electrical model of the PLZT. A new photostrictive mathematical
model of PLZT with LED-UV illumination is established. The mathematical model
is validated through the photostrictive static experiments of PLZT samples with
various sizes and light intensities.
