Record Details

X-pod: a small footprint multi-legged piezoelectric single-crystal unimorph-based actuator concept

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title X-pod: a small footprint multi-legged piezoelectric single-crystal unimorph-based actuator concept
 
Creator SHUKLA, R
LIM, LC
GANDHI, P
 
Subject ELECTRIC-FIELD
PERFORMANCE
STRAIN
 
Description Multi-legged piezoelectric single-crystal actuators with small footprints using an X-pod approach, namely, the Tripod and Tetrapod, have been conceptualized, each leg being a unimorph driven by Pb(Zn1/3Nb2/3)O-3-(6-7)%PbTiO3 (PZN-(6-7)% PT) single crystals of [110](L) x [001](T) cut. Both finite-element analysis and experimental investigations are carried out to evaluate the performance of the Tripod and Tetrapod actuators. When operated at 0.57 kV mm(-1), both actuators exhibit an axial displacement of nearly 60 mu m. Blocking forces of about 10 N and 14 N are observed for the Tripod and the Tetrapod, respectively. The blocking forces are roughly doubled if the perfectly clamped condition is imposed for the legs at the pedestal end while the axial displacement is lowered marginally by 12%. In addition to small footprints, other attractive features of the actuators include greater flexibility to modify the leg geometry and their inclination to suit the application.
 
Publisher IOP PUBLISHING LTD
 
Date 2014-10-15T08:18:35Z
2014-10-15T08:18:35Z
2012
 
Type Article
 
Identifier SMART MATERIALS AND STRUCTURES, 21(6)
http://dx.doi.org/10.1088/0964-1726/21/6/065015
http://dspace.library.iitb.ac.in/jspui/handle/100/14664
 
Language en