Design of a piezoelectric rotation actuator

Holterman, Jan and Vries de, Theo J.A. and Babakhani, Bayan and Brouwer, Dannis M. (2012) Design of a piezoelectric rotation actuator. In: Electroceramics XIII, 24-27 June 2012, Enschede, The Netherlands.

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Abstract:	In order to facilitate active damping within a linear motion system, a self-sensing piezoelectric rotation actuator has been designed. The rotation actuator consists of two piezoelectric stacks that function as linear actuators, embedded in a mechanical interface with several elastic elements, thus allowing for an efficient transformation of linear deformation into rotational motion. Each stack consists of a d33 ceramic multilayer actuator and a d33 ceramic single layer sensor. Key issues in the design are - the trade-off between strength and stiffness of the elastic elements on the one hand and actuator stroke at the other hand - appropriate integration of piezoelectric force sensors so as to allow for active damping based on collocated control - practical mechanical considerations e.g. gluing, preloading, stroke limitation so as to ensure correct loading of the piezoelectric actuators The rotation actuator as such comprises many of the typical design trade-offs as encountered when using piezoelectric elements in a mechatronic application.
Item Type:	Conference or Workshop Item
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Robotics and Mechatronics (CE)
Link to this item:	http://purl.utwente.nl/publications/81468
Conference URL:	http://www.electroceramics13.com/
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