A design optimization procedure for minimizing drive system weight of high speed prop-rotors

A design optimization procedure for minimizing drive system weight of high speed prop-rotors

0.00 Avg rating0 Votes
Article ID: iaor19951202
Country: Switzerland
Volume: 23
Issue: 3
Start Page Number: 239
End Page Number: 254
Publication Date: Jan 1995
Journal: Engineering Optimization
Authors: , ,
Keywords: engineering, transportation: air
Abstract:

An optimization procedure is developed to address the problem of minimizing the drive system weight of high speed prop-rotor aircraft which are required to demonstrate fixed-wing-like efficiencies in high speed forward flight and maintain acceptable hover figure of merit similar to helicopters. The optimization is performed using the method of feasible directions. A hybrid approximate analysis procedure is also used to reduce the computational effort of using exact analysis for every function evaluation necessary within the optimizer. The results compared to a reference rotor show significant weight reductions. The aerodynamic performance of the optimized rotor, analyzed at ‘off-design’ points to judge the strength of the optimization problem formulation and the validity of the resulting design, shows considerable improvements. The results are compared to the reference values and significant reduction in the weight is achieved.

Reviews

Required fields are marked *. Your email address will not be published.