Affiliations: [a] School of Mechatronics Engineering, Harbin Institute
of Technology, Harbin, Heilongjiang, China | [b] Department of Mechanical Engineering, StrucTronics
Lab, University of Kentucky, Lexington, KY, USA
Correspondence:
[*]
Corresponding author: Lei Wang, School of Mechatronics
Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang,
China. Tel.: +86 150 981 605 87; E-mail: [email protected]
Abstract: Photovoltaic materials, which can directly turn light energy into
electric energy, can offer the advantage of generating large voltages without
external power supplies. When a near ultraviolet light illuminates on polarized
PbLaZrTi (PLZT) materials, an electrical field can be generated along the
spontaneous polarization direction due to the phovoltaic effect. This voltage
generation mechanism exhibits many advantages, such as (1) high electrical
output voltage, (2) wireless energy generation, (3) immune from
electric/magnetic disturbances, (4) remote or non-contact control. In this
study, Distributed vibration control of cylindrical shells using a hybrid
photovoltaic/piezoelectric actuation mechanism is investigated. The
light-driven photovoltaic generator induced voltage is used to drive a
skew-quad piezoelectric actuator which can induce non-uniform control froces
and control moments. Based on theoretical analysis and experimental validation,
the constitutive equations defining the piezoelectric actuator induced
actuation strain under the actuation mechanism are presented. Each region of
the actuator system can induce both positive and negative control forces and
moments using logical switches to shift the sign of control voltage of actuator
system. Control effectiveness with constant light intensity control algorithm
is evaluated and the time history analysis is presented.
Keywords: Hybrid photovoltaic/piezoelectric actuation, cylindrical shell, non-uniform control forces
