TY - JOUR
T1 - Structural optimization of high speed prop rotors including aeroelastic stability constraints
AU - Chattopadhyay, Aditi
AU - McCarthy, T. R.
AU - Madden, J. F.
N1 - Funding Information:
The work was supported J. F. Madden, III.
PY - 1993/8
Y1 - 1993/8
N2 - An optimization procedure is developed to address the problem of aeroelastic stability of high speed prop-rotor aircraft. A composite box beam is used as a perturbational stiffness model and the objective function to be minimized is the perturbational weight. An optimization algorithm, which used the method of feasible directions, is coupled with a hybrid approximate analysis to reduce the computational expense of exact analyses for every function evaluation. The results, compared to a reference rotor which is unstable in both hover and high speed cruise, show significant improvements in the aeroelastic stability without large weight penalties.
AB - An optimization procedure is developed to address the problem of aeroelastic stability of high speed prop-rotor aircraft. A composite box beam is used as a perturbational stiffness model and the objective function to be minimized is the perturbational weight. An optimization algorithm, which used the method of feasible directions, is coupled with a hybrid approximate analysis to reduce the computational expense of exact analyses for every function evaluation. The results, compared to a reference rotor which is unstable in both hover and high speed cruise, show significant improvements in the aeroelastic stability without large weight penalties.
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U2 - 10.1016/0895-7177(93)90107-A
DO - 10.1016/0895-7177(93)90107-A
M3 - Article
AN - SCOPUS:38249001463
SN - 0895-7177
VL - 18
SP - 101
EP - 113
JO - Mathematical and Computer Modelling
JF - Mathematical and Computer Modelling
IS - 3-4
ER -