OPTIMUM DESIGN OF TRANSITIONS IN CLIMB/CRUISE/DESCENT FOR HYPERSONIC CRUISE VEHICLES

H. G. KAUFFMAN Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio, 45435, U.S.A

R. V. GRANDHI Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio, 45435, U.S.A

W. L. HANKEY Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio, 45435, U.S.A

P. J. BELCHER Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio, 45435, U.S.A

Abstract

A simple and efficient performance analysis and optimization method is developed for finding optimum flight-path trajectories between fixed endpoints. A methodology based on the energy method is derived for optimizing transitions between climb/cruise and cruise/descent for a hypersonic reconnaissance vehicle (Mach 6). Powered hypersonic flight produces some unique performance characteristics for which the methodology satisfies mission, flight, and vehicle-related design requirements and constraints. The transitions are optimized for minimum fuel burned between end points. Results from the optimization study on transitional trajectories are presented to illustrate the methodology

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OPTIMUM DESIGN OF TRANSITIONS IN CLIMB/CRUISE/DESCENT FOR HYPERSONIC CRUISE VEHICLES

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OPTIMUM DESIGN OF TRANSITIONS IN CLIMB/CRUISE/DESCENT FOR HYPERSONIC CRUISE VEHICLES

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