IMPROVED AERODYNAMIC APPROXIMATION MODEL WITH CASE-BASED REASONING TECHNIQUE FOR MDO OF AIRCRAFT

作     者：白振东 刘虎 柴雪 武哲 Bai Zhendong;Liu Hu;Chai Xue;Wu Zhe

作者机构：北京航空航天大学航空科学与工程学院 

出 版 物：《Transactions of Nanjing University of Aeronautics and Astronautics》 (南京航空航天大学学报（英文版）)

年 卷 期：2008年第25卷第3期

页      码：187-193页

摘      要：To increase the efficiency of the multidisciplinary optimization of aircraft, an aerodynamic approximation model is improved. Based on the study of aerodynamic approximation model constructed by the scaling correction model, case-based reasoning technique is introduced to improve the approximation model for optimization. The aircraft case model is constructed by utilizing the plane parameters related to aerodynamic characteristics as attributes of cases, and the formula of case retrieving is improved. Finally, the aerodynamic approximation model for optimization is improved by reusing the correction factors of the most similar aircraft to the current one. The multidisciplinary optimization of a civil aircraft concept is carried out with the improved aerodynamic approximation model. The results demonstrate that the precision and the efficiency of the optimization can be improved by utilizing the improved aerodynamic approximation model with ease-based reasoning technique.

主 题 词：aircraft aerodynamic approximation model case-based reasoning multidisciplinary optimization(MDO) 

学科分类：08[工学] 082501[082501] 0802[工学-机械学] 0825[工学-环境科学与工程类] 0704[理学-天文学类] 

核心收录：

D　O　I：10.3969/j.issn.1005-1120.2008.03.005

馆 藏 号：203532834...