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Lecture 3:  Spaceflight Gravity Environment

Space Environment and Effects

1. Gravity, Microgravity, Microgravity Simulation, Acceleration / Vibration (Lecture 3)

Gravity

Microgravity

· Reduced gravity, ‘Zero-G’, microgravity

Microgravity Perturbations

· Gravity Gradients

· Vibrations (machinery, crew-interactions)

·

Microgravity Simulation

Partial effects of reduced gravity simulation only:

· Neutral Buoyancy

· Clinorotation

Reduced Gravity / Free-fall Simulation:

· Drop Towers

· Controlled Freefall:

o Balloon Drop,

o Parabolic airplane flight (KC135, Airbus)

o Sounding Rocket

Launch / Landing Acceleration

Microgravity Perturbations

Vibration (launch, on-orbit)

• Gravity: Launch, Landing, On-Orbit: Reduced Gravity, Microgravity
• Vibration: Launch / Landing, Microgravity Perturbation

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