low-thrust trajectory optimisation
Multi-objective optimisation of many-revolution, low-thrust orbit raising for Destiny mission
... both trajectory design, since engine operation has to be interrupted while in shadow, and spacecraft bus design because it imposes constraints on battery ...the trajectory design of the following phase ...
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Automatic trajectory planning for low-thrust active removal mission in Low-Earth Orbit
... with low-thrust propulsion engine, attach a de-orbit device to each target to be removed; in the Deorbiting VRP strategy the servicing spacecraft grab the targets and deorbit them using ...
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CAMELOT - computational-analytical multi-fidelity low-thrust optimisation toolbox
... the low-thrust transfer between the previously de- fined asteroids ...direct optimisation method and mul- tiple shooting algorithm are ...the trajectory is segmented into legs that begin and ...
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Multi-objective optimisation of constellation deployment using low-thrust propulsion
... using low-thrust ...(which low- thrust trajectory is required to achieve the required slot) that can provide maximum pay-off, minimum launch cost and minimise the mass of ...
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CAMELOT-Computational-Analytical Multi-fidElity Low-thrust Optimisation Toolbox
... 3. translation of the identified impulsive optimal solution into a low-thrust optimal trajectory using FABLE. In the first step, AIDMAP is used to find the optimal sequence of asteroids to visit and ...
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Analysis of NEOs reachability with nano-satallites and low-thrust propulsion
... and low-thrust ...launch, thrust level and specific impulse of the ...detailed trajectory optimisation on a selected scenario to study the effect of uncertain boundary conditions and ...
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Extension of finite perturbative elements for multi-revolution low-thrust transfer optimisation
... well. The accuracy of the analytical first-order expansion has been shown to be adequate for propagating relatively long trajectory arcs around the Earth, with most acceleration levels allowed by current ...
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Multi-objective robust trajectory optimisation under epistemic uncertainty and imprecision
... make low thrust engines suited for the purpose of asteroid ...the trajectory is split into arcs during which the engine is on or off and pointing in a certain ...
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Optimised GTO-GEO transfer using low-thrust propulsion
... direct optimisation method to solve the GTO-GEO trans- ...The trajectory is propagated using orbital averaging and including perturbations from Earth shadows, oblateness and so- lar cell ...
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Direct transcription of low-thrust trajectories with finite trajectory elements
... maximum thrust, ∆V, total impulse, time of transfer, etc.). Thus, the use of low-fidelity solutions is not always ...a low-thrust trajectory into a multi-burn transfer to generate a ...
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Ascent trajectory optimisation for a single-stage-to-orbit vehicle with hybrid propulsion
... high thrust of rocket engines with the low fuel consumption of air-breathing engines at lower altitudes and Mach numbers are serious contenders for their ...
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Receding horizon control of nonlinear systems: a control Lyapunov function approach
... As we saw in Chapter 6, trajectory morphing ideas can be used in conjunction with receding horizon schemes to generate trajectories for nonlinear systems such as the vectored thrust mode[r] ...
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Low thrust propulsion in a coplanar circular restricted four body problem
... term’ low-thrust propulsion capabilities to generate surfaces of artificial equilibrium points close to the smaller primary, both in and out of the plane containing the celestial ...
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Influence of boundary layer transition on the trajectory optimisation of a reusable launch vehicle
... of optimisation tools for the design of vehicle trajectories is never a particularly straightforward ...gradient-based optimisation routines is often severely hampered by particular features that are ...
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An intrusive polynomial algebra multiple shooting approach to the solution of optimal control problems
... single trajectory evolving in a determin- istic nonlinear ...reference trajectory is impossible to achieve as uncer- tainty always affects the system; uncertainty is due to both imperfect state knowledge ...
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Displaced periodic orbits with low-thrust propulsion
... The use of solar electric propulsion (SEP) technology is now a realistic option for designing trajectories for interplanetary missions, while solar sail technology is currently under development. The topics covered in ...
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Optimized low-thrust mission to the Atira asteroids
... The trajectory is optimized in such a way as to visit the maximum possible num- ber of asteroids of the Atira group with the minimum propellant consumption; the mission ends with a transfer to an orbit with ...
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Optimised low-thrust mission to the Atira asteroids
... The trajectory is then analytically propagated forward from the departure point and backward from the end point (Figure ...while thrust legs are analytically propa- gated using the asymptotic expansion ...
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Low-thrust tour of the main belt asteroids
... and optimisation with MP-AIDEA is a sequence of transfer legs char- acterised by a departure heliocentric position, an end heliocentric position, a transfer time and a departure ∆V ...The low-thrust ...
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Analytical sun synchronous low-thrust manoeuvres
... Use of the general perturbations technique derived here on-board a spacecraft would significantly reduce complexity of spacecraft control in comparison with the use of the optimal solution, hence reducing the possibility ...
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