stephen hu deployment vehicle selection helicopter design hours worked: 98
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Stephen HuDeployment
Vehicle SelectionHelicopter DesignHours Worked: 98
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Team Member
Stephen Hu
Helicopter Design
2
IntroductionGeneral CharacteristicsConstraintsDeploymentConclusionsRecommendations
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Introduction
1. Investigation of the surface and lakes of Titan
2. VTOL capability3. Dependable performance in hostile
environments4. Able to last four months under
constant operation
Constraints
• Environment– Temperature– Wind– Solar Energy– Atmospheric Density
• Volume/Storage– Diameter of Heat Shield– Airship Storage
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General Characteristics
Vehicle: Helicopter
Type: Coaxial
Number of Blades per rotor: 2 blades
Airfoil: NACA 0012
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Deployment
• Post-Airship Separation
• Generator startup
• Freefall rotor startup
• Heat Shield separation
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Mass and Power Constraints
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Blade Radius vs. Power Required
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Forward Velocity vs. Power Required
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Characteristics/Performance Expected Contingency (20%)
Mass (kg) 155.4 186.5
Payload Mass (kg) 15.00 18.00
Rotor Diameter (m) 1.364 1.426
Main Blade Chord (m) 0.091 0.095
Fuselage Length (m) 2.56 2.56
Fuselage Height (m) 0.77 0.77
Total Height (m) 1 1
Total Width (m) 0.8 0.8
Max Climb Rate (m/s) 2.292 1.349
Spinup Time (s) 7.961 9.096
Max Cruise Velocity (m/s) 7.46 6.95
Optimal Cruise Velocity (m/s) 3.1 3.6
Range (km)* 188.0 175.1
Conclusions
Stephen Hu
Recommendations
• More in-depth aerodynamic design
• Materials
• Payload
• Deployment
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References
1. "The Vertical Profile of Winds on Titan." www.nature.com. 8 Dec. 2005. Nature: International Weekly Journal of Science. <http://www.nature.com/nature/journal/v438/n7069/full/nature04060.html>.
2. Wright, Henry S. Design of a Long Endurance Titan VTOL Vehicle. Georgia Institute of Technology. <https://wiki.umn.edu/pub/titanedd/deployment/vtol_design_paper.pdf>.
3. Leishman, Gordon. Principles of Helicopter Aerodynamics. Cambridge UP, 2006.
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