Fuel optimal propulsive reboost of flexible spacecraftThis paper presents for the first time an exact solution to the fuel optimal propulsive reboost problem for flexible spacecraft. The spacecraft undergoes rigid-body motion and flexible-body motion and reboost is achieved propulsively through the use of reaction control jets. The exact fuel optimal solution to the associated minimization problem is found numerically based on an adaptive grid bisection search. The reboost of the floating harmonic oscillator reveals properties of the fuel optimal solution. Nondimensional plots of minimum fuel versus maneuver time expose the nature of the solution classes depending on the maneuver time. Some very interesting properties are observed, among them, the shifting of impulses to the smaller oscillator mass, and comparisons are made with near fuel optimal solutions obtained by other investigators.
Document ID
19920053034
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Silverberg, Larry (NASA Headquarters Washington, DC United States)
Redmond, Jim (North Carolina State University Raleigh, United States)