Use of Linear Analysis of Microstructures in Defining Performance Closures for Highly Constrained Mechanical Design

Authors

Mark Lyon, Brigham Young University
Dr. Brent L. Adams, Brigham Young University

Keywords

linear analysis, microstructures, performance closures, Fourier

College

Ira A. Fulton College of Engineering and Technology

Department

Mechanical Engineering

Abstract

Using methods described by Adams1, the design of a compliant beam was modeled in a multidimensional Fourier design space. A compliant beam is one that achieves motion through bending. The motivation for the problem was a bicycle derailleur. A compliant beam could replace the entire rear derailleur if a large amount of flexibility could be obtained and yet have a relatively strong force when displaced to return the beam to its original position. The compliant derailleur would be simpler and cheaper than current derailleur designs. In general, metals are too stiff and plastics are too weak for this application. The performance of metal components can be improved or degraded by the material’s microstructure.

Recommended Citation

Lyon, Mark and Adams, Dr. Brent L. (2014) "Use of Linear Analysis of Microstructures in Defining Performance Closures for Highly Constrained Mechanical Design," Journal of Undergraduate Research: Vol. 2014: Iss. 1, Article 128.
Available at: https://scholarsarchive.byu.edu/jur/vol2014/iss1/128