| Title |
Piezoelectric actuators and their application in precise-positioning systems and space structures / |
| Authors |
Fedaravicius, Algimantas ; Rackauskas, Saulius ; Survila, Arvydas ; Ragulskis, Kazimieras ; Patasiene, Laima |
| Full Text |
|
| Is Part of |
Vibroengineering procedia: 17th international conference “Vibroengineering – 2014”, Katowice, Poland, 13-15 October, 2014 .. Kaunas : JVE International. 2014, vol. 3, p. 238-242.. ISSN 2345-0533. eISSN 2538-8479 |
| Keywords [eng] |
piezomaterial ; combined stacks ; displacement ; piezoelectric actuators |
| Abstract [eng] |
Complex piezoelectric actuators are frequently used in mechanisms of optical systems. They can be bimorph, axial and complex- combined stacks. This paper deals with axial piezostacks ised in piezoconverters. They make it possible to develop and unipolar or bipolar motion which ensures the displacement dependent on each piezoelement of the compound stack section. The bifurcation problem of a piezodrive has been solved by evaluating physical properties of piezoelements in piezostacs and sealing material. It has made it possible to prove that piezostacs have a lot of static operation possibilities. The original solution of the actuator enabled the choice of optimal initial stresses in piezostacs. The experimental investigation of piezodrives with combined piezostacs have revealed the possibilities to optimize the design and materials for obtaining maximum displacement. These piezoelectric actuators may be applied in various systems like gyroscopes, telescopes. |
| Published |
Kaunas : JVE International |
| Type |
Conference paper |
| Language |
English |
| Publication date |
2014 |
| CC license |
|
