ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Reaction Rocket Car

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Project Plan WeekActivity 1Introduction, history, theory 2Design 3 4Fabrication 5 6Final assembly 7Trial 8Trial - adaptations 9 10Data analysis, conclusions

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright History of Rockets First invented by Chinese – became fireworks, 10 – 12 th century Migrated to Europe by 14 th century Naval rocket launchers common by American Revolution

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright History of Rockets Robert Goddard, 1917, first supersonic flight 1942 – V2 rocket goes into production in Nazi Germany Saturn V – 1964 – launch platform for US Apollo project

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Theory of Rockets Pressure (combustion) chamber Nozzle Outlet flow

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Theory of Rockets Pressure – force exerted against a surface from a fluid. In this case the fluid is the gas produced within the pressure (combustion) chamber. The pressure results from the difference of the internal to external energies of gases. Blow up the balloon – is the pressure greater or lesser on the inside?

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Theory of Rockets Pressure is distributed within rocket chamber on all surfaces, including outlet. We can figure out the force produced by the rocket as the product of the pressure and the area of the outlet.

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Theory of rockets Momentum – a condition of a body in motion. The momentum of a given body is determined by the product of the mass and the velocity. Conservation of momentum – momentum before and after an event is always preserved. Newton’s third law – every action has an equal and opposite reaction. When we release the block from the toy car – which way do they go? Moving a body requires a force – that’s the reaction!

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Theory of Rockets Rockets act by both a pressure differential and by momentum/reaction. So… all rockets are in fact reaction rockets!!

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Reaction Rocket Car Wednesday, Ides of March, 2006

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Project Plan WeekActivity 1Introduction, history, theory 2Design 3 4Fabrication 5 6Final assembly 7Trial 8Trial - adaptations 9 10Data analysis, conclusions

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Develop Teams Vehicle design team –Responsible for the design of the moving apparatus –Concentration on: Low weight Low friction Interface to propulsion system

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Develop Teams Propulsion system design team –Responsible for the design of the reaction/rocket system –Concentration on: High force Long action Interface to vehicle

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Develop Teams Test & Operations design team –Responsible for the Design of Test (DOT) –Concentration on: Analytic results Empirical results Comparison of results

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Rocket Car

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Reaction Rocket Car 22 March, 2006

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Project Plan WeekActivity 1Introduction, history, theory 2Design 3 4Fabrication 5 6Final assembly 7Trial 8Trial - adaptations 9 10Data analysis, conclusions

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Teams Propulsion SystemVehicleTest & Operation

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Team Tasks Propulsion system design team –Concept for reaction rocket (air over water?) –How much thrust? –How much air? –How much water? –How will we fill? –How will we attach to vehicle? –Principles Force from pressure Force from momentum

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Team Tasks Test & Operations design team –What will we have the car do? –How will we measure that? –What do we predict will happen? –Principles: Force from pressure Force from momentum Acceleration Kinetic energy Friction Work

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Team Tasks Vehicle design team –What configuration? –What structure? –What wheels? –Principles: Acceleration Friction Work

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Rocket Car

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Principles Force from pressure –F = P*A Force from momentum –F = m*v Acceleration –a = F/m Friction –f = mW Kinetic energy –E = mv 2 /2 Work –W = F*d.

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Reaction Rocket Car 7 April 2006

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Project Plan WeekActivity 1Introduction, history, theory 2Design 3 4Fabrication 5 6Final assembly 7Trial 8Trial - adaptations 9 10Data analysis, conclusions

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Fabrication and Processes Technology – tekne + logia (crafting + study) = manufacture/fabrication Fabricated sub assemblies –Vehicle –Engine Processes –Screws –Adhesives –Solvent welding

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Shop Safety Safety –Finish the job in the same shape as when you started Hazards that can lead to injuries –Mechanical –Electrical –Magnetic –Chemical –Bio Safety equipment (today) –Safety glasses –Gloves What is the most important piece of safety equipment?

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Most Important Piece of Safety Equipment Your brain!!!! –Use it! Safety procedures –Follow instruction –Don’t guess – if you’re not sure how to do something, ask someone who does –Apply common sense –Think! –We’ll have more specific procedures later …

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Fabrication process - engine

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Vehicle

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Assembled Rocket Car

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Reaction Rocket Car Friday, 12 May 2006

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Project Plan WeekActivity 1Introduction, history, theory 2Design 3 4Fabrication 5 6Final assembly 7Trial 8Trial - adaptations 9 10Data analysis, conclusions

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Presentation Project description Learned elements Underlying science

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Data Reduction & Analysis We conduct data analysis to understand the performance of the rocket car. Data goes through two steps – reduction then analysis. Use the data to test your hypotheses. Graph the data to look for relationships.

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Concept of Variables Independent variables – input set Dependent variables – output set

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Reaction Rocket Car Wednesday, 24 May 2006

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Project Plan WeekActivity 1Introduction, history, theory 2Design 3 4Fabrication 5 6Final assembly 7Trial 8Trial - adaptations 9 10Data analysis, conclusions

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Presentation Project description – Learned elements – Underlying science -

ENGINEERING RESEARCH  DEVELOPMENT  INVENTION  DESIGN 907 Stuart Avenue  Mamaroneck, NY 10543(914)  Copyright Operation of Car Rider – Ground control (2) -