A Lifetime Model for Piezoceramic Actuators in Adaptronic Systems

被引：0
|
作者：
Flaschentraeger, David [1 ]
Nuffer, Juergen [1 ]
机构：
[1] Fraunhofer Inst Struct Durabil & Syst Reliabil LB, D-64289 Darmstadt, Germany
来源：
59TH ANNUAL RELIABILITY AND MAINTAINABILITY SYMPOSIUM (RAMS) | 2013年
关键词：
Humidity; Lifetime model; Piezo multilayer actuator; Temperature; LEAKAGE CURRENT; DEGRADATION; DEPENDENCE;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 7x7x32.4). 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.
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页数：6
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