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October 24, 2010

University of California, Irvine

	CEV Entry Guidance
	Sponsors: Boeing, NASA Marshall Space Flight Center, Universal Space Lines

We are developing entry guidance for Crew Exploration Vehicles (CEVs) and other future space vehicles that must be accurately and safely guided through the atmosphere. We have extended the Shuttle entry guidance concept to allow for crossrange as well as downrange trajectory planning. Prototype trajectory planning and trajectory tracking algorithms have been developed. Our Evolved Acceleration Guidance Logic for Entry (EAGLE) algorithm was independently tested in the Advanced Guidance and Control Study led by Marshall Space Flight Center and performed extremely well over a broad range of entry and abort scenarios for an X-33 type vehicle. Current research is addressing guidance for a CEV thermal protection system flight experiment and the skip-entry maneuver required for CEV lunar returns.

 

References: J. Benito and K. D. Mease, Skip-Entry Trajectory Planning Using Reachable and Controllable Sets, AAS/AIAA Astrodynamics Specialists Conference, San Diego, CA, Feb. 15-17, 2010. Saraf, A., Leavitt, J.A., Chen, D.T. and Mease, K.D., “Design and Evaluation of an Acceleration Guidance Algorithm for Entry”, AIAA Journal of Spacecraft and Rockets, Vol. 41, No. 6, November–December 2004. A. Saraf, J. Leavitt, M. Ferch and K. Mease, "Landing Footprint Computation for Entry Vehicles", Paper AIAA-2004-4774, AIAA Guidance, Navigation, and Control Conference and Exhibit, Providence, Rhode Island, Aug. 2004 A. Saraf, J. A. Leavitt, D. T. Chen, and K. D. Mease, "Design and Evaluation of an Acceleration Guidance Algorithm for Entry", Paper AIAA-2003-5737, AIAA Guidance, Navigation, and Control Conference and Exhibit, Austin, Texas, Aug. 2003. Chen, D.T., "Three-Dimensional Acceleration Planning for Atmospheric Entry", Ph.D. Dissertation, Univeristy of Californis, Irvine, 2003. J. A. Leavitt, "Development and Testing of Evolved Acceleration Guidance Logic for Entry (EAGLE)", M.S. Thesis, University of California, Irvine, Sept. 2002. J. A. Leavitt, A. Saraf, D. T. Chen, and K. D. Mease, "Performance of Evolved Acceleration Guidance Logic for Entry (EAGLE)", Paper 2002-4456, AIAA GNC-Conference, Monterey, Aug. 2002. K. D. Mease, D. T. Chen, P. Teufel, H. Schoenenberger, "Reduced-Order Entry Trajectory Planning for Acceleration Guidance," J. Guidance, Control, and Dynamics, Vol. 25, No. 2, pp. 257-266, 2002. K. D. Mease, D. T. Chen, S. Tandon, D. H. Young, and S. Kim, "A Three-Dimensional Predictive Entry Guidance Approach," Paper 2000-3959, AIAA GNC-Conference, Denver, Aug. 2000. D. T. Chen, "Reduced Order Trajectory Guidance for a Reusable Launch Vehicle," M.S. Thesis, University of California, Irvine, Nov. 1999. K. D. Mease, P. Teufel, H. Schoenenberger, D. T. Chen, and S. Bharadwaj, "Re-Entry Trajectory Planning for a Reusable Launch Vehicle," Paper 99-4160, AIAA AFM-Conference, Portland, Aug. 1999. S. Bharadwaj, A. V. Rao, and K. D. Mease, "Entry Trajectory Tracking Law via Feedback Linearization," J. Guidance, Control, and Dynamics, Vol. 21, No. 5, pp. 726-732, 1998. H. Schoenenberger, "Full State Recovery from Reduced-Order Re-Entry Trajectory Planning," Ph.D. Dissertation, University of Stuttgart, May 1998. (Research carried out at UCI.) S. Bharadwaj, "Nonlinear Tracking Law for Entry Guidance," M.S. Thesis, University of California, Irvine, Aug. 1996. P. Teufel, "Reduced-Order Trajectory Planning for Entry Guidance," Ph.D. Dissertation, University of Stuttgart, July 1996. (Research carried out at UCI.)

Flight Dynamics and Control Lab

University Of California, Irvine

To contact Professor Mease: kmease@uci.edu