Type of Document Master's Thesis Author Kelly, John H. URN etd-06232009-063138 Title Rule-based fuselage and spine and cross-section methods for computer aided design of aircraft components Degree Master of Science Department Mechanical Engineering Advisory Committee
Advisor Name Title Jayaram, Sankar Committee Chair Myklebust, Arvid Committee Member O'Brien, Walter F. Jr. Committee Member Keywords
Date of Defense 1993-05-04 Availability restricted Abstract
In 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.
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