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

trajectory simulation drag loss
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

trajectory simulation drag loss1
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

references
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