A lifetime model for piezoceramic actuators in adaptronic systems

Author

Flaschentrager, D. ; Nuffer, J.

Author_Institution

Fraunhofer Inst. for Struct. Durability & Syst. Reliability LBF, Darmstadt, Germany

fYear

2013

fDate

28-31 Jan. 2013

Firstpage

1

Lastpage

6

Abstract

This work presents a lifetime model for piezoelectric actuators by combination of previous available information/expertise and tailored tests in order to save test time and costs. It is shown that the assumptions drawn from expertise comply with the experimental results. Therefore, it was possible to set up a lifetime model which uses linear interpolation between given data points to assess the lifetime at any combination of relative humidity and temperature within the range covered by the model. The lifetime model is applied to a selected piezoceramic multilayer actuator (Ceramtec SP 505 7×7×32.4). The results of this application are presented and discussed. In general, the application of this method allows a cheaper lifetime assessments of piezoceramic actuators in early development stages of adaptronic systems.

Keywords

interpolation; piezoceramics; piezoelectric actuators; reliability; adaptronic systems; data points; information-expertise; lifetime model; linear interpolation; piezoceramic multilayer actuator; relative humidity; tailored tests; Actuators; Adaptation models; Degradation; Humidity; Leakage currents; Materials; Temperature; Humidity; Lifetime model; Piezo multilayer actuator; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Reliability and Maintainability Symposium (RAMS), 2013 Proceedings - Annual

Conference_Location

Orlando, FL

ISSN

0149-144X

Print_ISBN

978-1-4673-4709-9

Type

conf

DOI

10.1109/RAMS.2013.6517628

Filename

6517628