Strain transfer in an induced-strain actuator

Saravanan M. Peelamedu; Yunhe Yu; Kevin E. Molyet; Ganapathy Naganathan; Rao V. Dukkipati

doi:10.1117/12.316338

24 July 1998 Strain transfer in an induced-strain actuator

Saravanan M. Peelamedu, Yunhe Yu, Kevin E. Molyet, Ganapathy Naganathan, Rao V. Dukkipati

Proceedings Volume 3323, Smart Structures and Materials 1998: Mathematics and Control in Smart Structures; (1998) https://doi.org/10.1117/12.316338
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

Smart material actuator systems are being increasingly used in active vibration control, micro-motion as well as macro-motion applications. Viability of such macro-motion system depends upon how the induced strain in the smart material is transferred to the metal sub-structure. This paper presents results of experimental and theoretical investigations of the induced strain transfer from a piezoceramic material to the metal sub-structure through a bonding layer. The factors selected for the analysis in obtaining optimum strain transfer include the type of the sub- structure material, type of bonding material, thickness of bonding layer, and the thickness of the piezoceramic material. Taguchi method is used to experimentally investigate the individual effects of all these factors. A finite difference based numerical scheme has been developed to study such configurations. Results indicate that the finite difference and analytical methods agree well in determining the effect of parameters on induced strain transfer. Both experimental and theoretical results agree well within the scope of the Taguchi study in determining the effect of parameters. Results show that the type of substructure material and the thickness of piezoceramic play important roles in determining the effectiveness of strain transfer.

Citation Download Citation

Saravanan M. Peelamedu, Yunhe Yu, Kevin E. Molyet, Ganapathy Naganathan, and Rao V. Dukkipati "Strain transfer in an induced-strain actuator", Proc. SPIE 3323, Smart Structures and Materials 1998: Mathematics and Control in Smart Structures, (24 July 1998); https://doi.org/10.1117/12.316338

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