Results 281 to 290 of about 410,560 (293)

Optimal low-thrust orbital rendezvous

Journal of Spacecraft and Rockets, 1976
The minimum propellant optimal rendezvous maneuver of two cosmic vehicles on circular and elliptical orbits is examined. It is assumed that the target without propulsion moves on an orbit around the Earth or other planets as a satellite, and the tracking vehicle with variable thrust propulsion moves on a close orbit. The problem of the determination of
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High-thrust and low-thrust two-stage LEO-LEO transfer

Acta Astronautica, 1987
Abstract In this paper a low-altitude orbit-to-orbit minimum-fuel transfer is discussed. The spacecraft consists of a high-thrust solid stage and a low-thrust liquid stage. The thrust acceleration ratio is greater than 500. Both initial and final orbits are circular but non-coplanar.
Giovanni Vulpetti, Rosa Maria Montereali
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OPTIMUM GUIDANCE FOR A LOW THRUST INTERPLANETARY VEHICLE

Guidance Control Conference, 1965
Optimum guidance in two dimensions of constant acceleration low-thrust vehicle spiraling away from and in toward ...
Breakwell, J. V., Rauch, H. E.
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Low-Thrust Earth-Venus Trajectories

2015
The remarkable results obtained by the pioneering Deep Space 1 (DS1) mission (Rayman et al. 2000) have demonstrated the practical possibility of using electric thrusters to successfully perform interplanetary robotic missions.
QUARTA, ALESSANDRO ANTONIO, MENGALI, GIOVANNI, ALIASI, GENEROSO   +2 more
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Optimal low‒thrust orbit transfers with eclipsing

Optimal Control Applications and Methods, 2014
SummaryBy choosing the optimal steering history of a spacecraft, it is possible to maximize the mass delivered from a park orbit to a mission orbit. A low‒thrust orbit transfer that models coasts when passing through the Earth's shadow can be formulated as a large‒scale optimal control problem with many distinct phases.
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Very Low Thrust Trajectory Optimization

1999
The direct transcription or collocation method has demonstrated notable success in the solution of trajectory optimization and optimal control problems. This approach combines a sparse nonlinear programming algorithm with a discretization of the trajectory dynamics.
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Low-thrust nozzle performance

6th Aerospace Sciences Meeting, 1968
J. BROADWELL, T. MARCISZ
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Thrust Coefficient Losses in Additively Manufactured Low Thrust Nozzles

55th AIAA Aerospace Sciences Meeting, 2017
Christopher D. Tommila, Carl Hartsfield
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Low thrust mission applications

8th Joint Propulsion Specialist Conference, 1972
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Optimal Low-Thrust Transfer Using Variable Bounded Thrust

2018
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