Paper Title:
Uncertainty Quantification for a Flapping Airfoil with Chordwise Flexure
  Abstract

The uncertainty quantification for a flexible flapping airfoil was investigated using the point-collocation non-intrusive polynomial chaos method. The chordwise flexible amplitude was assumed to obey a normal distribution. It is observed that the time-averaged thrust coefficient obeys a Gauss-like but not the exact Gauss distribution, while the probability of the propulsive efficiency is much different from the exact Gauss distribution. The effect of the chordwise flexure on the time-averaged thrust coefficient is much larger than the effect on the propulsive efficiency. This work could be a preparation for the robust design of a flexible flapping wing with respect to a stochastic chordwise flexure.

  Info
Periodical
Advanced Materials Research (Volumes 308-310)
Chapter
Structural Strength and Robustness
Edited by
Jian Gao
Pages
1448-1453
DOI
10.4028/www.scientific.net/AMR.308-310.1448
Citation
L. Y. Zhao, C. Y. Xing, X. Q. Zhang, "Uncertainty Quantification for a Flapping Airfoil with Chordwise Flexure", Advanced Materials Research, Vols. 308-310, pp. 1448-1453, 2011
Online since
August 2011
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Price
$32.00
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