Optimal design and experimental validation of compliant mechanical amplifiers for piezoceramic stack actuators

M. Frecker, S. Canfield

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

An optimization method has been developed for design of compliant mechanical amplifiers for piezoceramic stack actuators. A topology optimization approach is used where the objective is to maximize the stroke amplification, and results show good algorithm convergence and good mechanism performance. The focus of this paper is on using the optimal topology solution to generate a solid model, and on improving the actuator performance through detail design and analysis of the resulting monolithic compliant mechanical amplifiers. A study of the effect of various flexure hinge configurations and other design parameters on the amplification and mechanical advantage of an actuator is performed. Another actuator with a large stroke amplification is designed using a batch of random starting points to the optimization algorithm. Prototype actuators have been fabricated, and the results of experimental validations are presented.

Original languageEnglish (US)
Pages (from-to)360-369
Number of pages10
JournalJournal of Intelligent Material Systems and Structures
Volume11
Issue number5
DOIs
StatePublished - May 1 2000

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanical Engineering

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