Kelly, John H.2014-03-142014-03-141993-05-04etd-06232009-063138http://hdl.handle.net/10919/43423In recent years, the use of computer-aided design (CAD) systems for conceptual aircraft design has greatly increased. As a result, new and better methods for creating surface models of aircraft geometry using dimensional parameters are needed. One such method, the Rule-Based Fuselage method, was suggested by Lockheed. The Rule-Based Fuselage method allows an aircraft designer to define complex aircraft fuselage geometry by specifying the fuselage profile and individual parametric cross-sections along the fuselage. This thesis describes the Rule-Based Fuselage method and discusses the implementation of the method in an interactive, object-oriented environment. Also included in this system is the Spine and Cross-Section method for creating arbitrarily shaped aircraft components. The design and implementation of both the Rule-Based Fuselage and Spine and Cross-Section methods are described. The integration of these methods with the conceptual aircraft design code, ACSYNT, is also discussed.x, 331 leavesBTDapplication/pdfenIn CopyrightLD5655.V855 1993.K455Airplanes -- Design and construction -- Data processingAirplanes -- Fuselage -- Design -- Data processingThesishttp://scholar.lib.vt.edu/theses/available/etd-06232009-063138/