Design and Control of Libration Point Spacecraft Formations
Infeld, Samantha I.
Josselyn, Scott B.
Ross, Michael I.
MetadataShow full item record
We investigate the concurrent problem of orbit design and formation control around a libration point. The problem formulation is based on a framework of multi-agent, nonlinear optimal control. The optimality criterion is fuel consumption modeled as the L1-norm of the control acceleration. Fuel budgets are allocated by isoperimetric constraints. The nonsmooth optimal control problem is discredited using DIDO, a software package that implements the Legendre pseudospectral method. The discretized problem is solved using SNOPT, a sequential quadratic programming solver. Among many, one of the advantages of our approach is that we do not require linearization or analytical results; consequently, the inherent nonlinearities associated with the problem are automatically exploited. Sample results for formations about the Sun-Earth L2 point in the 3-body circular restricted dynamical framework are presented. Globally optimal solutions for relaxed and almost periodic formations are presented for both a large separation constraint (about a third to half of orbit size), and a small separation constraint (a few hundred km or about 5_10_6 of orbit size).
The article of record as published may be located at http://dx.doi.org/10.2514/6.2004-4786Proceedings of AIAA Guidance, Navigation, and Control Conference ; Paper no. AIAA 2004-4786, Providence, Rhode Island, Aug. 16-19 2004
Showing items related by title, author, creator and subject.
Yale, G.; Agrawal, B.N. (1994);This paper concerns the cooperative control of multiple manipulators attached to the same base as they reposition a common payload. The theory is easily applied to inertially based problems as well as space based free-floating ...
Yale, G. E.; Agrawal, B.N. (1998);The cooperative control of multiplemanipulatorsattached to the samebase asthey reposition a common payload is discussed. The theory is easily appliedto inertially based problems, as well asspace-based free- oating ...
Schieber, Ty Alan (Monterey, California. Naval Postgraduate School, 1994-06);The author presents a new framework for approaching command and control in operations other than war (OOTW). Currently, no common doctrine exists between potential coalition partners to guide the command and control process ...