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Three-Dimensional Large Deformation of a Compliant Beam Designed for a Flexonic Mobile Node

[+] Author Affiliations
Jiajie Guo, Yang Xie, Kok-Meng Lee

Georgia Institute of Technology, Atlanta, GA

Paper No. DSCC2011-6039, pp. 159-165; 7 pages
doi:10.1115/DSCC2011-6039
From:
  • ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control
  • ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, Volume 2
  • Arlington, Virginia, USA, October 31–November 2, 2011
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 978-0-7918-5476-1
  • Copyright © 2011 by ASME

abstract

This paper presents design and analysis of a flexonic mobile node (FMN) for structural health monitoring. Unlike rigid configurations with a fixed distance between the front and rear axles, this FMN features various deformable configurations in three-dimensional (3D) space by incorporating a compliant beam (connecting the front and rear axles with a controlled pin joint). Hence, this FMN has more flexibility to negotiate corners and attach sensors on ferromagnetic structures. These functions are facilitated by the guidance of an embedded vision controlled system. Controlling a continuous compliant beam is a challenging task in terms of nonlinear deformation with infinite degrees of kinematic redundancy. Detailed discussion focuses on a theoretical beam model for simulating its 3D deformed shape. Results include the relations between input/output displacements and rotation angle for control implementation in sensor attachment and corner negotiation. Experiment is provided for model validation by comparing with the analysis for sensor attachment.

Copyright © 2011 by ASME
Topics: Deformation

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