Dynamic topology optimization of compliant mechanisms and piezoceramic actuators

Hima Maddisetty, Mary Frecker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

A topology optimization method is developed to design a piezoelectric ceramic actuator together with a compliant mechanism coupling structure for dynamic applications. The objective is to maximize the mechanical efficiency with a constraint on the capacitance of the piezoceramic actuator. Examples are presented to demonstrate the effect of considering dynamic behavior compared to static behavior, and the effect of sizing the piezoceramic actuator on the optimal topology and the capacitance of the actuator element. Comparison studies are also presented to illustrate the effect of damping, external spring stiffness, and driving frequency. The optimal topology of the compliant mechanism is shown to be dependent on the driving frequency, the external spring stiffness, and if the piezoelectric actuator element is considered as design or non-design. At high driving frequencies, it was found that the dynamically optimized structure is very near resonance.

Original languageEnglish (US)
Title of host publicationAdaptive Structures and Materials Systems
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages205-216
Number of pages12
ISBN (Print)0791836258, 9780791836255
DOIs
StatePublished - Jan 1 2002

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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  • Cite this

    Maddisetty, H., & Frecker, M. (2002). Dynamic topology optimization of compliant mechanisms and piezoceramic actuators. In Adaptive Structures and Materials Systems (pp. 205-216). (ASME International Mechanical Engineering Congress and Exposition, Proceedings). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2002-33993