국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Framework for Multidisciplinary Analysis, Design, and Optimization with High-Fidelity Analysis Tools
저자	Orr, Stanley A.;; Narducci, Robert P.
Keyword	ROTOR DYNAMICS;; DESIGN ANALYSIS;; AERODYNAMICS;; ROTOR AERODYNAMICS;; MULTIDISCIPLINARY DESIGN OPTIMIZATION;; FUSELAGES;; PROPULSION;; HELICOPTERS;; FLIGHT CHARACTERISTICS;; CONSISTENCY;;
URL	http://hdl.handle.net/2060/20090010039
보고서번호	LF99-8162;; NASA/CR-2009-215563
발행년도	2009
출처	NTRS (NASA Technical Report Server)
ABSTRACT	A plan is presented for the development of a high fidelity multidisciplinary optimization process for rotorcraft. The plan formulates individual disciplinary design problems, identifies practical high-fidelity tools and processes that can be incorporated in an automated optimization environment, and establishes statements of the multidisciplinary design problem including objectives, constraints, design variables, and cross-disciplinary dependencies. Five key disciplinary areas are selected in the development plan. These are rotor aerodynamics, rotor structures and dynamics, fuselage aerodynamics, fuselage structures, and propulsion / drive system. Flying qualities and noise are included as ancillary areas. Consistency across engineering disciplines is maintained with a central geometry engine that supports all multidisciplinary analysis. The multidisciplinary optimization process targets the preliminary design cycle where gross elements of the helicopter have been defined. These might include number of rotors and rotor configuration (tandem, coaxial, etc.). It is at this stage that sufficient configuration information is defined to perform high-fidelity analysis. At the same time there is enough design freedom to influence a design. The rotorcraft multidisciplinary optimization tool is built and substantiated throughout its development cycle in a staged approach by incorporating disciplines sequentially.