Robustness is a highly desirable quality in microelectromechanical systems (MEMS). Sensors and resonators operating on nonlinear dynamic principles such as internal resonances are no exception to this, and in addition, when nonlinear dynamic phenomena are used to enhance device sensitivity, their requirements for robustness may even be greater. This work discusses two aspects as they relate to the robustness and performance of nonlinear resonators. In the first aspect, different resonator designs are compared to find which among them have a better capacity to deliver reliable and reproducible performance in face of variations from the nominal design due to manufacturing process uncertainties/tolerances. The second aspect attempts to identify the inherent topological features that, if present in a resonator, enhance its robustness. Thus, the first part of this work is concerned with uncertainty analysis of several candidate nonlinear resonators operating under the principle of 1:2 internal resonance and obtained via a hierarchical optimization method introduced by the authors. The second part discusses specific changes to the computational design process that can be made so as to enhance the robustness and reliability of the candidate resonators.
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August 2017
Research-Article
On Regularization in Design for Reliability for Nonlinear Planar Beam-Type Resonators
Astitva Tripathi,
Astitva Tripathi
School of Mechanical Engineering,
Purdue University,
West Lafayette, IN 47907
e-mail: astitva.tripathi@gmail.com
Purdue University,
West Lafayette, IN 47907
e-mail: astitva.tripathi@gmail.com
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Anil K. Bajaj
Anil K. Bajaj
Search for other works by this author on:
Astitva Tripathi
School of Mechanical Engineering,
Purdue University,
West Lafayette, IN 47907
e-mail: astitva.tripathi@gmail.com
Purdue University,
West Lafayette, IN 47907
e-mail: astitva.tripathi@gmail.com
Anil K. Bajaj
1Corresponding author.
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received December 5, 2016; final manuscript received April 19, 2017; published online May 30, 2017. Assoc. Editor: Hanna Cho.
J. Vib. Acoust. Aug 2017, 139(4): 040907 (11 pages)
Published Online: May 30, 2017
Article history
Received:
December 5, 2016
Revised:
April 19, 2017
Citation
Tripathi, A., and Bajaj, A. K. (May 30, 2017). "On Regularization in Design for Reliability for Nonlinear Planar Beam-Type Resonators." ASME. J. Vib. Acoust. August 2017; 139(4): 040907. https://doi.org/10.1115/1.4036624
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