Aerodynamic design optimization of helicopter rotor blades including airfoil shape for hover performance

作     者：Ngoc Anh Vu Jae Woo Lee Jung Il Shu 

作者机构：Department of Aerospace Engineering Ho Chi Minh City University of Technology Department of Aerospace Information Engineering Konkuk University 

基　　金：co-supported by National Foundation for Science and Technology Development(NAFOSTED) of Vietnam (Project No. 107.04-2012.25) the Agency for Defense Development in the Republic of Korea under contract UD100048JD the project KARI-University Partnership Program 2009-09-2 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2013年第26卷第1期

页      码：1-8页

摘      要：This study proposes a process to obtain an optimal helicopter rotor blade shape for aerodynamic performance in hover flight. A new geometry representation algorithm which uses the class function/shape function transformation （CST） is employed to generate airfoil coordinates. With this approach, airfoil shape is considered in terms of design variables. The optimization process is constructed by integrating several programs developed by author. The design variables include twist, taper ratio, point of taper initiation, blade root chord, and coefficients of the airfoil distribution function. Aerodynamic constraints consist of limits on power available in hover and forward flight. The trim condition must be attainable. This paper considers rotor blade configuration for the hover flight condition only, so that the required power in hover is chosen as the objective function of the optimization problem. Sensitivity analysis of each design variable shows that airfoil shape has an important role in rotor performance. The optimum rotor blade reduces the required hover power by 7.4% and increases the figure of merit by 6.5%, which is a good improvement for rotor blade design.

主 题 词：Airfoil Design optimization Helicopter design Hover performance Planforms Rotor blades design 

学科分类：08[工学] 082503[082503] 0825[工学-环境科学与工程类] 

核心收录：

D　O　I：10.1016/j.cja.2012.12.008

馆 藏 号：203411858...