RT Conference Proceedings
T1 Reliability characterization of a piezoelectric actuator based AVC system
A1 Mazzola, Marco
A1 Aggogeri, Francesco
A1 Merlo, Angelo
A1 Brunner, Bernhard
A1 De La O Rodriguez, Maria
AB Reliability and Maintainability analyses are becoming an increasing competitive advantage in machine tool design. In particular, the goal of machine tools for Ultra High Precision Machining is to guarantee high specified performances and to maintain them over life cycle time. A structured reliability approach applied to such complex and innovative systems must be integrated in the early phase of the design. In this paper, the reliability characterization of an adjustable platform for micromilling operations is presented. The platform is intended to improve the surface finishing of the workpiece, through a broadband Active Vibration Control device based on high performance piezoelectric multilayer actuators. The study intends to assess the capability of the system to maintain along the life cycle the appropriate reduction of the chattering vibrations without any shape error. By dividing the system through a morphological-functional decomposition, the critical elements are detected and their reliability issues are extensively discussed. Their lifetimes are described through opportune distributions and models. The study is completed by the quantitative reliability prediction of the overall system. Finally, a sensitivity analysis is performed and reliability allocation implications are evaluated to determine the effect of every component on the system reliability characteristics and life cycle cost.
SN 9780791849187
YR 2010
FD 2010
LK https://hdl.handle.net/11556/2713
UL https://hdl.handle.net/11556/2713
LA eng
NO Mazzola , M , Aggogeri , F , Merlo , A , Brunner , B & De La O Rodriguez , M 2010 , Reliability characterization of a piezoelectric actuator based AVC system . in ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010 . ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010 , vol. 4 , pp. 769-778 , ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010 , Istanbul , Turkey , 12/07/10 . https://doi.org/10.1115/ESDA2010-25084
NO conference
DS TECNALIA Publications
RD 28 jul 2024