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Uncertainty in performance for linear and nonlinear energy harvesting strategies

Publication ,  Journal Article
Mann, BP; Barton, DAW; Owens, BAM
Published in: Journal of Intelligent Material Systems and Structures
September 1, 2012

Vibrational energy harvesters are often linear mass-spring-damper-type devices, which have their resonant frequency tuned to the dominant vibration frequency of their host environment. As such, they can be highly sensitive to uncertainties, which may arise from the imprecise characterization of the host environment or, alternatively, from manufacturing defects and tolerances. It has previously been claimed that the use of nonlinear energy harvesters may be one way to alleviate the problems of these uncertainties. This article presents a systematic uncertainty propagation study of a prototypical electromagnetic energy harvester. More specifically, the response of a linear harvester in the presence of parametric uncertainty is compared to the response of harvesters containing some common forms of nonlinearity, that is, hardening, softening, or bistability. Analytical solutions are used in combination with presumed levels of parametric uncertainty to quantify the resulting uncertainty in the power output. Consequently, these studies can determine the regions in the parameter space where a nonlinear strategy may outperform a more traditional linear approach. © The Author(s) 2012.

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Published In

Journal of Intelligent Material Systems and Structures

DOI

EISSN

1530-8138

ISSN

1045-389X

Publication Date

September 1, 2012

Volume

23

Issue

13

Start / End Page

1451 / 1460

Related Subject Headings

  • Materials
  • 40 Engineering
  • 09 Engineering
 

Citation

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Mann, B. P., Barton, D. A. W., & Owens, B. A. M. (2012). Uncertainty in performance for linear and nonlinear energy harvesting strategies. Journal of Intelligent Material Systems and Structures, 23(13), 1451–1460. https://doi.org/10.1177/1045389X12439639
Mann, B. P., D. A. W. Barton, and B. A. M. Owens. “Uncertainty in performance for linear and nonlinear energy harvesting strategies.” Journal of Intelligent Material Systems and Structures 23, no. 13 (September 1, 2012): 1451–60. https://doi.org/10.1177/1045389X12439639.
Mann BP, Barton DAW, Owens BAM. Uncertainty in performance for linear and nonlinear energy harvesting strategies. Journal of Intelligent Material Systems and Structures. 2012 Sep 1;23(13):1451–60.
Mann, B. P., et al. “Uncertainty in performance for linear and nonlinear energy harvesting strategies.” Journal of Intelligent Material Systems and Structures, vol. 23, no. 13, Sept. 2012, pp. 1451–60. Scopus, doi:10.1177/1045389X12439639.
Mann BP, Barton DAW, Owens BAM. Uncertainty in performance for linear and nonlinear energy harvesting strategies. Journal of Intelligent Material Systems and Structures. 2012 Sep 1;23(13):1451–1460.
Journal cover image

Published In

Journal of Intelligent Material Systems and Structures

DOI

EISSN

1530-8138

ISSN

1045-389X

Publication Date

September 1, 2012

Volume

23

Issue

13

Start / End Page

1451 / 1460

Related Subject Headings

  • Materials
  • 40 Engineering
  • 09 Engineering