F1 Car Project Kenji Nakajima 3B
Aerodynamics Drag (Air Resistance) The force acting opposite to the relative motion of any object moving with respect to a surrounding fluid (in this case air). Drag Coefficient The measure of drag of an object. Drag Profile The sum of the surface friction drag and the form drag for a body moving subsonically through a fluid Friction The resisting force of surfaces to a moving object Lift The component force of fluid passing through an object that is perpendicular to the oncoming flow direction.
Aerodynamics Weight - The force on an object due to gravity. Grip Force - The term describing the total cornering envelope of a race car by the friction component of the tire Downforce - The downwards thrust created by the aerodynamic characteristics of a car. Traction - The force used to generate motion between a body and a tangential surface
Bernoulli Effect The increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.
Mechanical Terms Kammback - A Kammback is a car body style that derives from the research of the German aerodynamicist Wunibald Kamm in the 1930s. A car body style that includes a smooth top back that ends at the tail. This body style reduces drag Car Exterior - Exterior detailing involves cleaning and restoring or exceeding the original condition of the surface of the car's finish, chrome trim, windows, wheels, and tires, as well as other visible components on the exterior of a vehicle. Defines how aerodynamic a car is. How fast it goes. Rear Spoiler Fin - A spoiler is an automotive aerodynamic device whose intended design function is to 'spoil' unfavorable air movement across a body of a vehicle in motion, usually described as turbulence or drag. Wing - A wing is a type of fin that produces lift, while moving through air or some other fluid.
Car Model Inspiration -
Concept Drawing
Final Technical Drawing
Orthographic Projection
Autodesk Video
Flow Simulation
Drag Coefficient ● Drag Coefficient = 0.36 ● Lots of pressure ○ Front fin ○ Back Wheels ○ Front Wheels ● Design Changes ● More curvature = less drag
Race Video
Data Analysis: Weight vs. Speed of Car (Time)
Data Analysis: Drag vs. Speed of Car (Time) (Weight group 60g-70g) (Weight group 50g-60g)
Data Analysis: Drag vs. Speed of Car (Time) (Weight group 70g-80g+)
Project Development Reflection ● Molding the car to your desire after 3d printing it was hard ● Doesn’t perfectly come out as expected ● Designing the car was also hard ● Design the car out of scratch instead of using the autodesk fusion as a template ● Autodesk Fusion and fusion flow to design and make adjustments to my car accordingly to aerodynamics ● Technical drawing skills improved ● Learned ○ Sanding (which specific sanding tool to use)
Personal Reflection ● With mutliple project deadlines, work management improved ● This class helped me be a better learner through self learning of tutorials ● Designing the car has made me a better thinker ● Being able to use multiple forms a media on this presentation will help me improve with communication ● This class has shown and given me the option to contribute to the world through engineering.
bibliography https://en.wikipedia.org/wiki/Aerodynamics https://en.wikipedia.org/wiki/Automotive_aerodynamics https://en.wikipedia.org/wiki/Drag_(physics) https://en.wikipedia.org/wiki/Lift_(force) www.baysideautoworks.com/Spring%20Hill-auto-maintenance.html
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