Improved Preliminary Sizing Method for Multidisciplinary Aircraft Design Optimization
A systematic aircraft sizing and design synthesis process is developed and presented to obtain an optimum configuration rapidly at an early stage of aircraft design. A preliminary sizing phase is developed by using simple and systematic empirical relations to work out a first layout easily and accurately from user requirements and airworthiness constraints. This preliminary sizing capabilities work on conventional and unconventional aircrafts, jet, piston and propeller engine type. Validations are performed on Unmanned Aerial Vehicle-UAV, Unmanned Combat Aerial Vehicle-UCAV and three regional jet aircraft; the results show good agreement with aircraft configuration data. Then, this preliminary sizing loop provides the first layout in a conceptual aircraft design synthesis process and serves as a baseline for optimization. Analysis modules are well-developed and validated before being integrated into the multidisciplinary optimization environment and the aircraft configuration is refined in the conceptual design synthesis stage. A Multidisciplinary Feasibility technique is applied to resolve the coupling of variables in the aircraft conceptual design synthesis process. A case study is presented by the multidisciplinary design of a regional jet aircraft that demonstrates the feasibility and effectiveness of rapid aircraft configuration generation. The optimum results show a 7.2％ improvement in total take-off gross weight compared to the regional jet aircraft baseline and better performance-lift drag ratio.
Preliminary Sizing Aircraft Design Design Optimization Multidisciplinary Design Optimization-MDO Multidisciplinary Feasibility-MDF
Nhu-Van Nguyen Seok-Min Choi Jae-Woo Lee Yung-Hwan Byun
Konkuk University, Seoul, 143-701, Korea LIGNex1 Co., Ltd., Daejeon, South Korea, 305-804
国际会议
2011年亚太航空航天技术学术会议(APISAT 2011)
澳大利亚
英文
1-14
2011-02-28（万方平台首次上网日期，不代表论文的发表时间）