TY - GEN
T1 - Probabilistic flutter analysis and risk assessment of an airfoil
AU - Li, Yi
AU - Yang, Zhichun
PY - 2010
Y1 - 2010
N2 - The explosive nature of the flutter phenomenon and these uncertainties in aeroelastic system mandate that flutter calculation and flutter flight testing be cautious and conservative. The traditional deterministic nonlinear flutter analysis method is no longer suitable to treat these uncertain parameters. In this paper, a probabilistic method, the Monte Carlo simulation together with non-parametric estimation, is proposed to quantify these uncertainties of airfoil. Through probabilistic flutter analysis we can get the PDF of flutter speed, basing on them, we assess the risk of flutter occurring, and then we carry out probabilistic sensitivity analysis to define the key value that acutely influences the flutter speed of airfoil.
AB - The explosive nature of the flutter phenomenon and these uncertainties in aeroelastic system mandate that flutter calculation and flutter flight testing be cautious and conservative. The traditional deterministic nonlinear flutter analysis method is no longer suitable to treat these uncertain parameters. In this paper, a probabilistic method, the Monte Carlo simulation together with non-parametric estimation, is proposed to quantify these uncertainties of airfoil. Through probabilistic flutter analysis we can get the PDF of flutter speed, basing on them, we assess the risk of flutter occurring, and then we carry out probabilistic sensitivity analysis to define the key value that acutely influences the flutter speed of airfoil.
KW - Flutter
KW - Flutter risk assessment
KW - Monte carlo
KW - Probabilistic sensitivity
KW - Uncertainty
UR - http://www.scopus.com/inward/record.url?scp=84878449199&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:84878449199
SN - 9781617820496
T3 - 27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010
SP - 2437
EP - 2442
BT - 27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010
T2 - 27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010
Y2 - 19 September 2010 through 24 September 2010
ER -