Effect of heat rate constraint on minimum-fuel synergetic plane changeThe synergetic plane change offers substantial fuel savings over the pure-propulsive alternative for certain noncoplanar orbital transfers. On the other hand, the thermal environment for a synergetic plane change vehicle can be quite severe. The minimum-fuel controls are computed approximately by parametrizing the controls and solving the resulting nonlinear programming problem. By considering several different levels of heat rate constraint, we characterize how the control strategy should be modified in order to keep the heat rate below the specified limit. Flight on the heat rate constraint boundary at high angle of attack is the key characteristic.
Document ID
19930033951
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mease, Kenneth D. (JPL, Pasadena, CA; Princeton Univ. NJ, United States)
Utashima, Masayoshi (JPL, Pasadena, CA; NASDA, Tsukuba Space Center Sakura, Japan)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Spaceflight mechanics 1991; Proceedings of the 1st AAS(AIAA Annual Spaceflight Mechanics Meeting, Houston, TX, Feb. 11-13, 1991. Pt. 2 (A93-17901 05-13)