Authors:
Ramutis Bansevicius
;
Arunas Lipnickas
and
Minvydas Ragulskis
Affiliation:
Kaunas University of Technology, Lithuania
Keyword(s):
Mechatronics, Piezoelectric Actuators, Active Kinematic, Active Bearing, Modelling.
Related
Ontology
Subjects/Areas/Topics:
Informatics in Control, Automation and Robotics
;
Intelligent Control Systems and Optimization
;
Mechatronic Systems
;
Modeling, Simulation and Architectures
;
Robot Design, Development and Control
;
Robotics and Automation
Abstract:
New type of multi-degree-of-freedom piezoelectric actuators based on active kinematic pairs is presented. The contact zone of this type of actuator is formed by two oscillating transducers in a form of rod, plate, disk or cylinder. Depending on a phase of both transducers in a contact zone and their amplitudes, either high frequency oblique impacts or periodic change of normal reaction in the contact zone are generated, leading to continuous motion of one of the links. Schematics of piezoelectric motors, using two active elements in the contact zone and comprising the number of degrees-of-freedom up to 5 are presented. Several applications for laser beam deflection and positioning devices in the plane are considered. The concept of active bearing is introduced; this type of support has no processing datum surface errors.