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No AccessFull-Length Paper

Feasibility of Guided Entry for a Crewed Lifting Body Without Angle-of-Attack Control

Published Online:25 Apr 2014https://doi.org/10.2514/1.62214

Abstract

The feasibility of flying a crewed lifting body, such as the HL-20, during entry from low Earth orbit without the steady-state body flap deflections required for angle-of-attack control was evaluated. This entry strategy mitigates the severity of the aerothermal environment on the vehicle’s body flaps and reserves control power for transient steering maneuvers. A real-time numeric predictor–corrector entry guidance algorithm was developed to accommodate the range of vehicle trim angle-of-attack profiles possible in the absence of angle-of-attack control. Results show that it is feasible to steer the vehicle from low Earth orbit to a desired target with real-time guidance while satisfying a reasonable suite of trajectory constraints, including limits on peak heat rate, peak sensed deceleration, and integrated heat load. Uncertainty analyses confirm this result and show that the vehicle maintains significant performance robustness to expected day-of-flight uncertainties. Additionally, parametric scans over mission design parameters of interest indicate that a high level of flexibility is available for the low-Earth-orbit return mission. Together, these results indicate that the proposed entry strategy is feasible: Crewed lifting bodies may be effectively flown without steady-state body flap deflections.

References

  • [1] Stone H. W. and Piland W. M., “21st Century Space Transportation System Design Approach—HL-20 Personnel Launch System,” Journal of Spacecraft and Rockets, Vol. 30, No. 5, Sept. 1993, pp. 521–528. doi:https://doi.org/10.2514/3.25561 JSCRAG 0022-4650 LinkGoogle Scholar

  • [2] Harpold J. C. and Graves C. A., “Shuttle Entry Guidance,” NASA TM-79949, Feb. 1979. Google Scholar

  • [3] Lu P. and Hanson J. M., “Entry Guidance for the X-33 Vehicle,” Journal of Spacecraft and Rockets, Vol. 35, No. 3, May–June 1998, pp. 342–349. doi:https://doi.org/10.2514/2.3332 JSCRAG 0022-4650 LinkGoogle Scholar

  • [4] Leavitt J. A. and Mease K., “Feasible Trajectory Generation for Atmospheric Entry Guidance,” Journal of Guidance, Control, and Dynamics, Vol. 30, No. 2, March–April 2007, pp. 473–481. doi:https://doi.org/10.2514/1.23034 JGCDDT 0162-3192 LinkGoogle Scholar

  • [5] Saraf A., Leavitt J. A., Chen D. T. and Mease K. D., “Design and Evaluation of an Acceleration Guidance Algorithm for Entry,” Journal of Spacecraft and Rockets, Vol. 41, No. 6, Nov.–Dec. 2004, pp. 986–996. doi:https://doi.org/10.2514/1.11015 JSCRAG 0022-4650 LinkGoogle Scholar

  • [6] Xue S. and Lu P., “Constrained Predictor–Corrector Entry Guidance,” Journal of Guidance, Control, and Dynamics, Vol. 33, No. 4, July–Aug. 2010, pp. 1273–1281. doi:https://doi.org/10.2514/1.49557 JGCDDT 0162-3192 LinkGoogle Scholar

  • [7] Joshi A., Sivan K. and Amma S. S., “Predictor–Corrector Reentry Guidance Algorithm with Path Constraints for Atmospheric Entry Vehicles,” Journal of Guidance, Control, and Dynamics, Vol. 30, No. 5, Sept.–Oct. 2007, pp. 1307–1318. doi:https://doi.org/10.2514/1.26306 JGCDDT 0162-3192 LinkGoogle Scholar

  • [8] Powell R. W., “Guidance and Control Analysis of the Entry of a Lifting Body Personnel Launch Vehicle,” AIAA Paper  1991-0055, Jan. 1991. LinkGoogle Scholar

  • [9] Powell R. W., “Six-Degree-of-Freedom Guidance and Control-Entry Analysis of the HL-20,” Journal of Spacecraft and Rockets, Vol. 30, No. 5, Sept. 1993, pp. 537–542. doi:https://doi.org/10.2514/3.25563 JSCRAG 0022-4650 LinkGoogle Scholar

  • [10] Morth R., “Reentry Guidance for Apollo,” Vol. 1, Massachusetts Inst. of Technology Instrumentation Lab. R-532, Cambridge, MA, Jan. 1966. Google Scholar

  • [11] Bairstow S. H. and Barton G. H., “Orion Reentry Guidance with Extended Range Capability Using PredGuid,” AIAA Paper  2007-6427, Aug. 2007. LinkGoogle Scholar

  • [12] Tigges M. A., Crull T. and Rea J. R., “Numerical Skip Entry Guidance,” AAS Paper  2007-076, Feb. 2007. Google Scholar

  • [13] Brunner C. W. and Lu P., “Skip Entry Trajectory Planning and Guidance,” Journal of Guidance, Control, and Dynamics, Vol. 41, No. 5, Sept.–Oct. 2008, pp. 1210–1219. doi:https://doi.org/10.2514/1.35055 JGCDDT 0162-3192 LinkGoogle Scholar

  • [14] Gamble J. D., Cerimele C. J., Moore T. E. and Higgins J., “Atmospheric Guidance Concepts for an Aeroassist Flight Experiment,” Journal of Astronautical Sciences, Vol. 36, Nos. 1–2, Jan. 1988, pp. 45–71. Google Scholar

  • [15] Rea J. R. and Putnam Z. R., “Comparison of Two Orion Skip Entry Guidance Algorithms,” AIAA Paper  2007-6424, Aug. 2007. LinkGoogle Scholar

  • [16] McNamara L. W., “Entry Atmospheric Flight Control Authority Impacts on GN&C and Trajectory Performance for Orion Exploration Flight Test 1,” AIAA Paper  2012-4994, Aug. 2012. LinkGoogle Scholar

  • [17] Vincenty T., “Direct and Inverse Solutions of Geodesics on the Ellipsoid with Application of Nested Equations,” Survey Review, Vol. 22, No. 176, April 1975, pp. 88–93. CrossrefGoogle Scholar

  • [18] Justus C. G. and Leslie F. W., “NASA MSFC Earth Global Reference Atmospheric Model—2007 Version,” NASA TM-2008-215581, Nov. 2008. Google Scholar

  • [19] Chapman D. R., “Approximate Analytical Method for Studying Entry Into Planetary Atmospheres,” NASA TR-R-11, 1959. Google Scholar

  • [20] Tauber M. E. and Sutton K., “Stagnation-Point Radiative Heating Relations for Earth and Mars Entries,” Journal of Spacecraft and Rockets, Vol. 28, No. 1, June 1991, pp. 40–42. doi:https://doi.org/10.2514/3.26206 JSCRAG 0022-4650 LinkGoogle Scholar

  • [21] Ware G. M. and Cruz C. I., “Aerodynamic Characteristics of the HL-20,” Journal of Spacecraft and Rockets, Vol. 30, No. 5, Sept. 1993, pp. 529–536. doi:https://doi.org/10.2514/3.25562 JSCRAG 0022-4650 LinkGoogle Scholar

  • [22] Howard R. D., Krevor Z. C., Mosher T., Scott K. P., Voss J. S., Sanchez M. J. and Curry J. M., “Dream Chaser Commercial Crewed Spacecraft Overview,” AIAA Paper  2011-2245, April 2011. Google Scholar

  • [23] Ehrlich K. F., “HL-20 Concept: Design Rationale and Approach,” Journal of Spacecraft and Rockets, Vol. 30, No. 5, Sept. 1993, pp. 573–581. doi:https://doi.org/10.2514/3.25568 JSCRAG 0022-4650 LinkGoogle Scholar

  • [24] Wurster K. E. and Stone H. W., “Aerodynamic Heating Environment Definition/Thermal Protection System Selection for the HL-20,” Journal of Spacecraft and Rockets, Vol. 30, No. 5, Sept. 1993, pp. 549–557. doi:https://doi.org/10.2514/3.25565 JSCRAG 0022-4650 LinkGoogle Scholar

  • [25] “Constellation Program Human-Systems Integration Requirements,” NASA CxP 70024, Rev. E, Nov. 2010. Google Scholar

  • [26] D'Souza C. D., Crain T., Clark F. D. and Getchius J., “Orion Cislunar Guidance and Navigation,” AIAA Paper  2007-6681, Aug. 2007. LinkGoogle Scholar

  • [27] Gamble J. D. and Young J. C., “Development and Application of Aerodynamic Uncertainties in the Design of the Entry Trajectory and Flight Control System of the Space Shuttle Orbiter,” AIAA Paper  1982-1335, Aug. 1982. Google Scholar

  • [28] Shen Z. and Lu P., “Onboard Generation of Three-Dimensional Constrained Entry Trajectories,” Journal of Guidance, Control, and Dynamics, Vol. 26, No. 1, Jan.–Feb. 2003, pp. 111–121. doi:https://doi.org/10.2514/2.5021 JGCDDT 0162-3192 LinkGoogle Scholar

  • [29] Lu P., “Predictor–Corrector Entry Guidance for Low-Lifting Vehicles,” Journal of Guidance, Control, and Dynamics, Vol. 31, No. 4, July–Aug. 2008, pp. 1067–1075. doi:https://doi.org/10.2514/1.32055 JGCDDT 0162-3192 LinkGoogle Scholar

  • [30] Vanderplaats G. N., “Unconstrained Functions of N Variables,” Numerical Optimization Techniques for Engineering Design, 4th ed., Vanderplaats Research and Development, Colorado Springs, CO, 2005, pp. 89–128. Google Scholar

  • [31] Brent R. P., “Algorithm with Guaranteed Convergence for Finding a Zero of a Function,” Algorithms for Minimization Without Derivatives, Prentice–Hall, Upper Saddle River, NJ, 1973, pp. 47–58. Google Scholar

  • [32] Harpold J. C. and Gavert D. E., “Space Shuttle Entry Guidance Performance Results,” Journal of Guidance, Control, and Dynamics, Vol. 6, No. 6, Nov. 1983, pp. 442–447. doi:https://doi.org/10.2514/3.8523 JGCDDT 0162-3192 LinkGoogle Scholar

  • [33] Joosten B. K., “Descent Guidance and Mission Planning for Space Shuttle,” Space Shuttle Technical Conference, NASA, Houston, TX, Jan. 1985, pp. 113–124. Google Scholar

  • [34] Reding J. P. and Svendsen H. O., “Lifting Entry Rescue Vehicle Configuration,” Journal of Spacecraft and Rockets, Vol. 27, No. 6, Nov. 1990, pp. 606–612. doi:https://doi.org/10.2514/3.26187 JSCRAG 0022-4650 LinkGoogle Scholar

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