Influence of electromechanical loading on mechanical characterization of piezoelectric stack actuator

Kai Zheng; Shaoze Yan; Shizhu Wen

doi:10.1117/12.522322

2 September 2003 Influence of electromechanical loading on mechanical characterization of piezoelectric stack actuator

Kai Zheng, Shaoze Yan, Shizhu Wen

Proceedings Volume 5253, Fifth International Symposium on Instrumentation and Control Technology; (2003) https://doi.org/10.1117/12.522322
Event: Fifth International Symposium on Instrumentation and Control Technology, 2003, Beijing, China

Abstract

The response of piezoelectric stack actuator under electric, mechanical, and electro-mechanical loading was investigated. Some parameters were evaluated, including output displacement, hysteresis, output force and mechanical stiffness as a function of mechanical preload and electric field value representative of in-service conditions, to understand the behavior of piezoelectric stack actuator under the combined electro-mechanical loading, and to determine the design-oriented fundamental information. Initially, the output displacement is enhanced with the increase in mechanical preload and the maximum displacement values are obtained when the stacks are preload between 6 - 8 MPa. The hysteresis degree under certain preload has better performance. Stiffness measurements indicate strong dependence on mechanical preload and applied voltage, and the values change significantly depending on the operating conditions. The output force results showed that the external mechanical compress did not have significant influence.

Citation Download Citation

Kai Zheng, Shaoze Yan, and Shizhu Wen "Influence of electromechanical loading on mechanical characterization of piezoelectric stack actuator", Proc. SPIE 5253, Fifth International Symposium on Instrumentation and Control Technology, (2 September 2003); https://doi.org/10.1117/12.522322

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