Technische Universität München Exam Preparation Spacecraft Technology 1 Ralf Purschke Phone: 089.289.16029 Room: MW 2616 (Garching)

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Presentation transcript:

Technische Universität München Exam Preparation Spacecraft Technology 1 Ralf Purschke Phone: Room: MW 2616 (Garching)

Technische Universität München Official Stuff 90 minutes written Exam Time to just ‚read‘ exam No own material allowed You will get a new formulary (identical to the one that we handed out) Non-programmable pocket calculator is allowed Pencils are NOT allowed (not even for drawing /sketching – sorry, TUM law)

Technische Universität München Official Stuff Part 2 Bring some colored pens (No red & green) ~15-20 problems Problem types: explain, name, sort, label, sketch, calculate You do not need 100% for the best grade

Technische Universität München General Recommendations Write down equations (they already get you points) If you are stuck on a problem, go on with the other problems first, then return after you have dealt with the rest of the problems. If you are missing a value, then assume a reasonable value and go on. No derivations needed. Know how to use equations & basic understanding

Technische Universität München Contents Rocket principle Momentum & pressure thrust V* and ISP External Forces Mass definitions Rocket equations Delta-V demands Losses Structural and Payload Factor Rocket Equation Principle of staging Types of staging Partial rockets Partial masses, paylod factor,… Limits of staging Pros/Cons Staging Fundamental thermodynamics Laval nozzle Nozzle Layout dimensioning Thrust coefficient Nozzle adaptation Losses Cooling Feeding system Engine cycles Solid rocket motors Thermal Propulsion Types (principle) Adv./disadvantage Key values Velocities/thrust/Isp/energy Exotic Propulsion (Nuclear, Solarsail) Electrical Propulsion Main parameters Influences on spacecraft Atmosphere Solar (availability, change with distance) Radiation (Van Allen Belts, Single Event Upsets,…) Space Debris (origin, sizes, problems, protection,…) Environment Acting Forces (qualitatively) Eq. Motion (understanding) Main Trajectories & Phases Losses (typical delta-V‘s) Gravity Turn, Pitch Maneuver,… Ascent Physic foundations Kepler Laws Orbit Energy (Vis-Viva) Conical Sections (Circle, Ellipse, Parabola,…) Orbital Elements Orbit Transfers (Hohmann, Phasing,…) Interplanetary Flight (SOI) Ground Tracks, Viewing Conditions Astrodynamics