Dynamic topology optimization of compliant mechanisms and piezoceramic actuators

Hima Maddisetty, Mary Frecker

Research output: Contribution to journalArticlepeer-review

31 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 whether the piezoelectric actuator element is considered design or nondesign. At high driving frequencies, it was found that the dynamically optimized structure is very near resonance.

Original languageEnglish (US)
Pages (from-to)975-983
Number of pages9
JournalJournal of Mechanical Design, Transactions of the ASME
Volume126
Issue number6
DOIs
StatePublished - Nov 1 2004

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

Fingerprint Dive into the research topics of 'Dynamic topology optimization of compliant mechanisms and piezoceramic actuators'. Together they form a unique fingerprint.

Cite this