Full Content is available to subscribers

Subscribe/Learn More  >

Predicting the Performance of a Bistable Micro Mechanism Using Design-Stage Uncertainty Analysis

[+] Author Affiliations
Jonathan W. Wittwer, Larry L. Howell, Sydney M. Wait, Michael S. Cherry

Brigham Young University, Provo, UT

Paper No. IMECE2002-33262, pp. 127-134; 8 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Microelectromechanical Systems
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Microelectromechanical Systems
  • ISBN: 0-7918-3642-8 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


Significant reduction in cost and time to market can be realized by implementing design-stage uncertainty analysis to predict whether a device will meet specified requirements. This paper demonstrates a generalized uncertainty analysis method appropriate for surface micromachined devices and uses a micro linear-displacement bistable mechanism as an example. Dimensional variations, joint clearances, material property uncertainty and friction are included as sources of error. Using matrix notation, the model consists of a system of implicit, nonlinear equations. The analysis is performed at multiple deflections to estimate uncertainty bands around the force-deflection curve of the mechanism. These results can then be used to predict the performance of the mechanism. Applying these techniques resulted in a functional first-time prototype of a bistable mechanism that can be actuated using a non-amplified thermal actuator.

Copyright © 2002 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In