Parameter identification of piezoelectric bimorphs for dynamic applications considering strain and velocity dependent effects

Björn Richter; Jens Twiefel

doi:10.1117/12.815967

6 April 2009 Parameter identification of piezoelectric bimorphs for dynamic applications considering strain and velocity dependent effects

Björn Richter, Jens Twiefel

Author Affiliations +

Proceedings Volume 7288, Active and Passive Smart Structures and Integrated Systems 2009; 72881K (2009) https://doi.org/10.1117/12.815967
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

Piezoelectric bimorph elements are commonly used in a wide area of applications, among them various actuator applications in textile machines, applications in sensing like medical tissue identification, or the use in energy harvesting systems. Especially the last field may create a mass market for piezoelectric elements. Due to their easy use and low resonance frequency, bimorphs seem to fit energy harvesting demands quite well. To get the best possible power output, the element has to be designed as good as possible to fit the environmental excitation characteristics as excitation frequency and amplitude. Due to the need of a good understanding of the resulting system, a model based approach is desirable for the design of the used bimorphs. This is the case not only in Energy Harvesting systems but in most of the mentioned applications.

Citation Download Citation

Björn Richter and Jens Twiefel "Parameter identification of piezoelectric bimorphs for dynamic applications considering strain and velocity dependent effects", Proc. SPIE 7288, Active and Passive Smart Structures and Integrated Systems 2009, 72881K (6 April 2009); https://doi.org/10.1117/12.815967

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