POLY ENGINEERING http://farm3.static.flickr.com/2275/2333105291_d8dbbcaa97_o.jpg – source for “you still have a choice!” picture.

I1-6 Constraints on the Engineering Design Process 8 IOT POLY ENGINEERING I1-6 8 Constraints on the Engineering Design Process (A constraint is a limit or restriction) Safety – is the product safe to use/construct? Reliability – will it work consistently over time? Cost – is it affordable? Quality Control – does it meet customer requirements? Environmental Concerns – does it harm the natural or human environment negatively? Manufacturability – can it be made? Maintenance – how easily can it be maintained or upheld? Ergonomics – how efficiently can the human body utilize it? Use the image of NASA’s new lunar service vehicle as an example for the constraints.

Core Technologies Core Technologies I1-6 9 Mechanical Structural IOT POLY ENGINEERING I1-6 9 Core Technologies Core Technologies Mechanical Structural Electrical Electronic Fluid Optical Thermal Biotechnology Material Students have seen this slide before. I suggest before clicking the 9 core technologies onto the screen, identify parts of the shuttle and have the students identify which core technology it is. Robot boom arm that sticks out of the shuttle bay – Mechanical The frame of the shuttle doors and wings – Structural The battery power supply used for lights and other energy – Electrical The computer systems used to store and transmit information – Electrical Plumbing system in the shuttle – Fluid Lights and video screens – Optical Air conditioning / heating system – Thermal Food processors, human waste disposers – Biotechnology The modified plastics, metals, and ceramics - Material Technology Systems

Mechanical Technology IOT POLY ENGINEERING I1-6 Mechanical Technology The technology of putting together mechanical parts to produce, control, and transmit motion. Example applications: Gear systems in a car transmission, Brakes on a bicycle, Agitator in a washing machine, Latch on a door. Springs in vehicle shocks

Structural Technology IOT POLY ENGINEERING I1-6 Structural Technology The technology of putting mechanical parts and materials together to create supports, containers, shelters, connectors, and functional shapes. Example applications: Legs on a chair, City water tower, Swimming pool, Roadways and Bridges, Bicycle spokes Airplane wing, Satellite antenna disc.

Electrical Technology IOT POLY ENGINEERING I1-6 Electrical Technology The technology of producing, storing, controlling, transmitting and getting work from electrical energy. Example applications: Power plant generator, Flashlight, Electric motor in a can opener, Doorbell, Electric heater, Hair dryer.

Electronic Technology IOT POLY ENGINEERING I1-6 Electronic Technology The technology of using small amounts of electricity for controlling; detecting; and information collecting, storing, retrieving, processing and communicating. Example applications: thermostat for controlling temperature, a metal detector, video tape recorder, computer, pocket calculator, telephone, radio, television.

IOT POLY ENGINEERING I1-6 Fluid Technology The technology of using fluid, either gaseous (pneumatics) or liquid (hydraulic) to apply force or to transport. Example applications: Air brakes on a truck, Tires on a car, Airfoils on an airplane, Warm-air heating ducts, Hydraulic jack, Plumbing in a school Hydro-electric dam

IOT POLY ENGINEERING I1-6 Optical Technology The technology of producing light; using light for information collecting, storing, retrieving, processing and communicating; and using light to do work. Example applications: Lightbulb, Light-emitting diode, Lenses to magnify or reduce, Laser speed detector, Laser compact disk, Fiber-optic telephone communication, Laser cutting tools, Laser surgical instruments.

IOT POLY ENGINEERING I1-6 Thermal Technology The technology of producing, storing, controlling, transmitting and getting work from heat energy. Example applications: Furnace, Hot water heater, Toaster, Insulation, Heat exchanger, Refrigerator, Hot air balloon.

IOT POLY ENGINEERING I1-6 Biotechnology The technology of using, adapting, and altering organisms and biological processes for a desired outcome. Example applications “Stain-eating” enzymes in detergent, Bacteria “leaching” metals from ore, Altering plant genes to produce better crops. Oil-eating microbes used in oil spill remediation Genetically-modified agriculture

Materials Technology I1-6 IOT POLY ENGINEERING I1-6 Materials Technology The technology of producing, altering, and combining materials. Example applications: Producing paper from wood, Producing aluminum from ore, Drilling holes in wood, Annealing to soften metal, Laminating wood.

Review – Design Process IOT POLY ENGINEERING I1-6 Review – Design Process Define the Problem Brainstorm, Research, Generate Ideas Explore Possibilities Develop a Design Proposal Make Model/Prototype Test and Evaluate Refine the Design Communicate the Solution

Classwork / Homework I1-6 IOT POLY ENGINEERING I1-6 Classwork / Homework Partner exercise - articles about particular technology systems (i.e. Hubble, Maglev Train, etc.) and students must: Describe the system outputs – what are the desired/undesired outputs? Describe the operation of the system in terms of the 9 core technologies. Answers should be written up. 3 or 4 groups will be chosen at random tomorrow to give presentation. 3-minute maximum. Teacher will ask questions.