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Trajectory Simulation – Drag Loss

Daniel Chua 31 January 2008 Trajectory Simulation Validation of Drag Loss Model – Constant Steering After First Stage Assisted by Amanda Briden, Elizabeth Harkness and Brad Ferris. Trajectory Simulation – Drag Loss. Expect smaller launch vehicles to suffer greater drag losses

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Trajectory Simulation – Drag Loss

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  1. Daniel Chua31 January 2008Trajectory SimulationValidation of Drag Loss Model – Constant Steering After First StageAssisted by Amanda Briden, Elizabeth Harknessand Brad Ferris

  2. Trajectory Simulation – Drag Loss • Expect smaller launch vehicles to suffer greater drag losses • Expect larger steering angles to result in lower drag losses • Keep steering angle constant after 1st stage • Run for 2nd and 3rd stage angles Trajectory Optimization

  3. Trajectory Simulation – Drag Loss • Results: • Compare to Shuttle (2029633 kg GLOM): 107 m/s Titan IV/Centaur (886420 kg GLOM): 156 m/s (from SMAD) Trajectory Optimization

  4. References • Wertz, J. R., and Larson, W. J., Space Mission Analysis and Design, 3rd ed., Microcosm, 1999 • Humble, R.W., and Henry, G.N., Space Propulsion Analysis and Design, 7th ed., McGraw-Hill, 1995 Trajectory Optimization

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