TEAM HYPER LYNX Connor Catterall, Ben Cooper, Nicole Garcia, George - PowerPoint PPT Presentation

TEAM HYPER LYNX Connor Catterall, Ben Cooper, Nicole Garcia, George Kemp, Chandler Lacy, John Spinelli, Mark Urban, and Susan Waruinge October 9 th 2015

 Pod Components  Discussion  Summary/Conclusions  Mass Flow  Recommendations  Compressor  Controls  Air Bearings  Linear Induction Motor  Brakes  Frame

What is a Hyperloop?  Proposed by Elon Musk, the founder of Tesla and SpaceX  New form of transportation that will consist of a pod traveling in a low pressured tube on a frictionless surface at speeds near Mach 1. Purpose The mission of team Hyperlynx is to design and manufacture a Hyperloop pod demonstrating the safety, stability and feasibility of the Hyperloop system.

Building a half size pod   14 feet long  4 feet wide  The pod will be compete in a proof of concept competition at SpaceX headquarters in June 2016  Over 200 teams  1 mile long straight test track  5 feet diameter tube

𝑁 = 𝑊 𝐷 𝑊 = Relative Speed C = Speed of Sound Mach Regimes M Classification Low Subsonic 𝑁 High Subsonic 𝑁 8 Transonic 𝑁 Sonic 𝑁 = Supersonic 𝑁 𝑁 = unity Hypersonic 𝑁 Hyper Velocity 𝑁 25

Mass Flow in the Hyperloop 𝑆𝑓 = 𝜍𝑊𝐸 𝐼 𝑆𝑓 laminar ; 𝑆𝑓 > 4 turbulent 𝜈 Five Control Volumes 1. Overpass 2. Inlet 3. Diffuser 4. Underpass 5. Outlet

 Axial compressor  Primary function is to decrease mass flow rate around the pod to avoid choked flow • Also provides compressed air to the air bearings  Advantages • Efficiencies up to 90% • Capable of high mass flow rates • Lightweight

Mass Flow Rate into Compressor 0.35 Mass flow rate into compressor to avoid choked flow 0.3 Actual flow rate into Mass flow rate (kg/s) 0.25 compressor 0.2 0.15 0.1 0.05 0 0 50 100 150 200 250 300 350 400 Velocity (m/s)

Compressor Shaft Power Requirement 50 45 40 35 30 Power (kW) 25 20 15 10 5 0 0 50 100 150 200 250 300 350 400 Velocity (m/s)

 Intercooler draws heat from air exiting the compressor  Independent pressure vessels provide flow to bearing and cabin

 Off-board CPU will monitor internal functions  On-board CPU will perform autonomously  Advantages of Arduino Low power • consumption • Number of I/O ports Ease of coding •

 Provide levitation and almost frictionless travel  16 air bearings, located on either side of the pod  Total specs  Load capacity - 12,800 lb  Air consumption - 160 scfh  Pressure - 60 psi  Limitations  How to overcome shear stress Images courtesy of nelsonair.com  Requires perfectly machined tube

 Suggested to SpaceX by MIT  Rail fixture attached to the top of tube  Will solve additional issues related to stability and braking  Limitations  Force of rolled steel bar will be very high, especially around turns.  If SpaceX uses the rail idea, Image courtesy of MIT Team calculations must be initiated to determine strength of rail and max speeds.

 Propulsion System  Used to accelerate and decelerate the pod  Primary (stationary) component: Stator (provided by SpaceX)  Constructed into the tube  Secondary (moving) component: rotor  Constructed to the Pod  Main braking system  Will recapture energy from moving pod while decelerating pod

 Deceleration values Braking Force  Human comfort: 0.15g 25000 30  Untrained human Force (lb)  20 g for less than 10 s Distance to Stop (mi) 25  10 g for 1 min 20000  6 g for 10 min Distance to Stop (mi)  Main braking system 20 15000 Force (lbf)  Linear induction motor  Emergency braking system 15  Landing gears and disc barkes 10000 10  Turn off compressor  Barricade 5000 5 0 0 0.15 1 2 3 4 5 6 10 20 Deceleration (g) Note: Calculation based on 1000 lb mass

 Material Aluminum 2024   Reinforced with ribs and stringers  Advantages:  Increase buckling strength  Stability  Structural Integrity  Frame shelled with aluminum, riveted to body.

Front View Side View

 Our design is optimized to prevent choke flow by pulling air through the pod instead of around  Pressurized air onboard system for air bearings that will provide a frictionless surface  The frame is designed to minimize weight and drag while maximizing strength  The LIM will provide sufficient propulsion to keep the pod moving at above 700mph.

Validating computer  modeling with experimental data  Wind tunnel test  Air Bearing Test  Create a working model 1/10 th scale.  Work with electrical engineers for the control system  Test LIM and create process sheets for rotor.

 Doug Gallagher  Ron Rorrer  Joseph Cullen  Denver Channel 7  CBS  All our Kickstarter Backers  College of Architecture

 http://www.wired.co.uk/news/archive/2015-05/28/elon- musk-hyperloop-might-be-free-breaking-ground-in-2016  https://en.wikipedia.org/wiki/G-force  NMAN news direct  Matlab Simulink Hyperloop App  David Dearing (compressor design)  Mario Paredes (seats design)