Modeling and Validation of S-Drive: A Nestable Piezoelectric Actuator

This dissertation introduces a novel, nestable piezoelectric actuator, called the s-drive. In the s-drive actuator, the piezoelectric material is sandwiched between two conductors, and the electrodes are configured such that an application of a voltage causes an extension on two beams and compression on the other two beams to produce a large lateral deflection in the form of an `s' shape. The s-drive gets its name from the characteristic `s' shape that appears upon actuation. The designs of one-dimensional (1D) and two-dimensional (2D) arrays of axial-mode and shear-mode s-drives, for magnifying displacement and shear, are also presented in this work. Experimental results from the fabricated s-drive and its 1D nested arrays are presented for validation of the finite element analysis simulations and the developed analytical model of the s-drive and its nested arrays.

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Mechanical Engineering

Year

2014

Author dc:creator

• Chigullapalli, Aarti

Contributors dc:contributor

• Jason V Clark
• Dimitrios Peroulis
• Jeffrey F Rhoads
• Alina Alexeenko

• Actuator array
• Large displacement
• Nestable
• Piezoelectric actuator
• PZT

Repository record dc:identifier

https://docs.lib.purdue.edu/open_access_dissertations/1501

OAI identifier oai:identifier

oai:docs.lib.purdue.edu:open_access_dissertations-2717