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Flextensional Actuator Design Using Topology Optimization and the Homogenization Method

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Smart Structures

Part of the book series: NATO Science Series ((ASHT,volume 65))

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Abstract

Flextensional actuators consist of a piezoceramic (or a stack of piezoceramics) connected to a flexible mechanical structure that converts and amplifies the output displacement of the piezoceramic. A well—known type of flextensional actuator is the “moonie” transducer, which consists of a piezoceramic disk sandwiched between two metal endcaps [1]. The performance of the flextensional actuator is measured in terms of output displacement and generative (or “blocking”) force [2]. Generative force is the maximum force supported by the transducer without deforming, for a certain applied voltage.

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References

  1. Dogan, A., Yoshikawa, S., Uchino, K., and Newnham, R. E. (1994) The Effect of Geometry on the Characteristics of the Moonie Transducer and Reliability Issue Proceedings of IEEE 1994 Ultrasonic Symposium 935–939.

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  2. Dogan, A., Uchino, K., and Newnham, R. E. (1997) Composite Piezoelectric Transducer with Truncated Conical Endcaps “Cymbal” IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 44 No. 3 May 597–605.

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  3. Bendsøe, M. P. and Kikuchi, N. (1988) Generating Optimal Topologies in Structural Design Using a Homogenization Method Computer Methods in Applied Mechanics and Engineering 71 197–224.

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  4. Silva, E. C. N. (1998) “Design of Piezocomposite Materials and Piezoelectric Transducers Using Topology Optimization”, Ph.D. Dissertation, The University of Michigan-Ann Arbor.

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  5. Kikuchi, N., Hollister, S., and Yoo, J. (1997) A Concept of Image-Based Integrated CAE for Production Engineering Proceedings of International Symposium on Optimization and Innovative Design Japan 75-90.

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© 1999 Springer Science+Business Media Dordrecht

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Silva, E.C.N., Nishiwaki, S., Kikuchi, N. (1999). Flextensional Actuator Design Using Topology Optimization and the Homogenization Method. In: Holnicki-Szulc, J., Rodellar, J. (eds) Smart Structures. NATO Science Series, vol 65. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4611-1_35

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  • DOI: https://doi.org/10.1007/978-94-011-4611-1_35

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-0-7923-5613-4

  • Online ISBN: 978-94-011-4611-1

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