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.
| Original language | English |
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| Title of host publication | Advanced Design Technology |
| Pages | 1448-1453 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2011 |
| Event | 2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011 - Guangzhou, China Duration: 16 Sept 2011 → 18 Sept 2011 |
Publication series
| Name | Advanced Materials Research |
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| Volume | 308-310 |
| ISSN (Print) | 1022-6680 |
Conference
| Conference | 2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011 |
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| Country/Territory | China |
| City | Guangzhou |
| Period | 16/09/11 → 18/09/11 |
Keywords
- Flapping airfoil
- Flexure
- Non-intrusive polynomial chaos
- Uncertainty quantification