RT Journal Article
T1 Design of piezo-based AVC system for machine tool applications
A1 Aggogeri, F.
A1 Al-Bender, F.
A1 Brunner, B.
A1 Elsaid, M.
A1 Mazzola, M.
A1 Merlo, A.
A1 Ricciardi, D.
A1 De La O Rodriguez, M.
A1 Salvi, E.
AB The goal of machine tools for Ultra High Precision Machining is to guarantee high specified performances and to maintain them over life cycle time. In this paper the design of an innovative mechatronic subsystem (platform) for Active Vibration Control (AVC) of Ultra High Precision micromilling Machines is presented. The platform integrates piezoelectric stack actuators and a novel sensor concept. During the machining process (e.g. milling), the contact between the cutting tool and the workpiece surface at the tool tip point generates chattering vibrations. Any vibration is recorded on the workpiece surface, directly affecting its roughness. Consequently, uncontrolled vibrations lead to poor surface finishing, unacceptable in high precision milling. The proposed Smart Platform aims to improve the surface finishing of the workpiece exploiting a broadband AVC strategy. The paper describes the steps throughout the design phase of the platform, beginning from the actuator/sensor criteria selection taking into account both performance and durability. The novel actuation principle and mechanism and the related FE analysis are also presented. Finally, an integrated mechatronic model able to predict in closed-loop the active damping and vibration-suppression capability of the integrated system is presented and simulation results are discussed.
SN 0888-3270
YR 2013
FD 2013-03
LK https://hdl.handle.net/11556/3089
UL https://hdl.handle.net/11556/3089
LA eng
NO Aggogeri , F , Al-Bender , F , Brunner , B , Elsaid , M , Mazzola , M , Merlo , A , Ricciardi , D , De La O Rodriguez , M & Salvi , E 2013 , ' Design of piezo-based AVC system for machine tool applications ' , Mechanical Systems and Signal Processing , vol. 36 , no. 1 , pp. 53-65 . https://doi.org/10.1016/j.ymssp.2011.06.012
NO The work carried out in this paper is partially funded by the EU Project ( CP-FP-213999-2 ) “ADAMOD” (Plug-in Adaptronic Modules for real-time errors (Thermal & Vibration) compensation and superfine positioning in reconfigurable high precision) machine tools). The authors do wish to thank all the partners of the consortium.
DS TECNALIA Publications
RD 4 ago 2024