Hayate. Hayate Design Innovation Chassis Fairing Three-wheeled “stable” vehicle Rigid space truss frame design Efficient Drivetrain Fairing Extensive.

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Presentation transcript:

Hayate

Design Innovation Chassis Fairing Three-wheeled “stable” vehicle Rigid space truss frame design Efficient Drivetrain Fairing Extensive aerodynamic analysis Finite element analysis of entire shell and at mounting points Use of advanced composite materials Rear hub spacers chainrings

Chassis Analysis Chassis Sable frame deflection analysis Mathcad for steering, acceleration Excel road race spread sheet Roll Bar Hip Location, (one on other side also) Under the Axles

Deflection at mounting points Fairing Analysis 2D Shape iteration Final fairing shape Ducting analysis Forces on fairing at chassis mounting points Deflection at mounting points

Testing Chassis Prototype Fairing 1/12 Scale Model Brake test Turning/tipping test Fairing 1/12 Scale Model Oil test: transition form laminar to turbulent air flow Smoke test: determine where separation occurs

Testing Chassis Fairing Integration Turning Braking Steering General fit Mounting Any other interference

Building a Safe Hayate Hayate Vehicle Rollbar 4 point harness rider restraint Stability of three wheel design Optimum visibility Rider cooling to minimize fatigue Design Criteria Horizontal -5

Overall Results Criteria Goal Actual Min Turning Radius Braking Distance Max. Cr Max Frame Deflection Fairing Cd*A Visibility Drivetrain Efficiency 25 ft 20 ft at 15 mph 0.0077 0.5 in 1.1 ft2 180° side to side, -10° to 30° off horiz. 95% 20 ft Satisfied 0.00519 0.5 in 1.0 ft2 180° side to side, -10° to 30° off horiz. 97%