By Topic

Study on a PZT actuator based on pre-stressed mechanism

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Yi-Cheng Huang ; Dept. of Mechatron. Eng., Nat. Changhua Univ. of Educ., Changhua ; Jen-Ai Chao ; Lin Hsiang-Jung

In this paper, a redesign of the prestress mechanism of the stack-type piezoelectric ceramic actuator is provided. Belleville (disc) springs which have a specific height-to- thickness ratio are constructed to generate a constant pre-stress force to the PZT and operated in a special condition. The zero- spring-rate preload mechanism is not only used to handle the tensile stress but also used in both the constant force actuation mode and elastic suspension mode. The feasibility of the concept of the output force and vibration isolation is determined by the experimental results. The comparison of the output force and the dynamic response of the pretress mechanism between the different settings of the actuator designed in this study and the commercial products reveal that the constant output force can be maintained and the new prestress mechanism exhibits an extremely low natural frequency which approach to zero as height-to-thickness ratio of the Belleville springs equal to radic2.

Published in:

Advanced Intelligent Mechatronics, 2008. AIM 2008. IEEE/ASME International Conference on

Date of Conference:

2-5 July 2008