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Stephen Hu Deployment Vehicle Selection Helicopter Design Hours Worked: 102 1 Team Member Stephen Hu.

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Presentation on theme: "Stephen Hu Deployment Vehicle Selection Helicopter Design Hours Worked: 102 1 Team Member Stephen Hu."— Presentation transcript:

1 Stephen Hu Deployment Vehicle Selection Helicopter Design Hours Worked: Team Member Stephen Hu

2 Helicopter Design 2 Introduction General Characteristics Constraints Deployment Conclusions Recommendations 2Stephen Hu

3 Introduction 1.Investigation of the surface and lakes of Titan 2.VTOL capability 3.Dependable performance in hostile environments 4.Able to last four months under constant operation 3Stephen Hu

4 Constraints Environment – Cryogenic Conditions Icing occurs above 10 km (around T~91 K) – Wind: 0-10 m/s – Solar Energy: Minimal - None – Atmospheric Density: 5.44 kg/m 3 Volume/Storage – Diameter of Heat Shield: 3.75 m – Airship Storage Stephen Hu4

5 5 Type: Coaxial Airfoil: NACA 0012 Helicopter Characteristics

6 Deployment 6Stephen Hu

7 Blade Radius vs. Power Required 7Stephen Hu

8 Forward Velocity vs. Power Required 8Stephen Hu

9 Altitude Ceiling Stephen Hu9

10 10 Characteristics/PerformanceExpectedMaximum Expected Mass Total Mass (kg)* Payload Mass (kg) Rotor Radius (m) Main Blade Chord (m) Fuselage Length (m)2.56 Fuselage Height (m)0.77 Total Height (m)1.0 Total Width (m)0.8 Max Climb Rate (m/s) Spin-up Time (s) Max Cruise Velocity (m/s) Optimal Cruise Velocity (m/s) Range (km)*183.7/ /100 Altitude (km)*12.6/ Conclusions Stephen Hu

11 Characteristics /Performance Georgia Tech Helicopter NASA AirshipDesigned Combination (Max. Mass) Total Mass (kg)318.8 Max Cruise Velocity (m/s) / Optimal Cruise Velocity (m/s) / Max Climb Rate (m/s) 4 Range (km)* 100 Altitude (km)* 10

12 Recommendations More in-depth aerodynamic design Materials Payload Deployment 12Stephen Hu

13 References 1."The Vertical Profile of Winds on Titan." 8 Dec Nature: International Weekly Journal of Science.. 2.Wright, Henry S. Design of a Long Endurance Titan VTOL Vehicle. Georgia Institute of Technology.. 3.Leishman, Gordon. Principles of Helicopter Aerodynamics. Cambridge UP, Prouty, Raymond W. Helicopter Aerodynamics. 2nd ed. Peioria, ILL: PJS Publications, Lorenz, R. D. "Flexibility for Titan Exploration: The Titan Helicopter." Innovative Approaches to Outer Planetary Exploration Lunar and Planetary Lab, University of Arizona, Tucson, Az.. 6.Young, Larry A. "Vertical Lift - Not Just for Terrestrial Flight." Army/NASA RotorCraft Division, Ames Research Center, Moffett Field, CA.. 7.Lorenz, Ralph D. "Post-Cassini Exploration of Titan: Science Rationale and Mission Concepts." University of Arizona Lunar and Planetary Laboratory. Lunar and Planetary Lab, University of Arizona, Tucson, Az.. 13Stephen Hu

14 Mass and Power Constraints 14Stephen Hu


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