Mechanical Engineering? What is MST @ MSU 2006 Jeff Rhoads and Terry Ballinger.

Mechanical Engineering?Mechanical Engineering?What isWhat is

MST @ MSU

2006

Jeff Rhoads and Terry BallingerJeff Rhoads and Terry Ballinger

OutlineOutline

• What is Engineering?

• Intro to Engineering Movie

• What is Mechanical Engineering?

• Sample ME Topics

• Alternative Energy Sources

• MEMS

• Lesson Overview

What is Engineering?What is Engineering?


The application of The application of sciencescience & & mathematicsmathematics to design, to design, build, and maintain devices and processes that are build, and maintain devices and processes that are useful to humankinduseful to humankind..


Useful Things

Stuffconvert


convertStuff

MatterMatter Sources of EnergySources of Energy ……

…useful to humankind

CarsCars Air ConditionersAir Conditioners BridgesBridges Clean WaterClean Water ……

Useful Things

Mechanical Engineering?Mechanical Engineering?

Mechanical Energy

Non-Mechanical Energy convert

What isWhat is


Mechanical Energy

Non-Mechanical Energy

ElectricalElectrical ChemicalChemical ThermalThermal NuclearNuclear ……

convert

What isWhat is


Mechanical Energy


PotentialPotential KineticKinetic

ElectricalElectrical ChemicalChemical ThermalThermal NuclearNuclear ……

convert

What isWhat is


Mechanical Energy


Conversion involves the design and manufacture of:

convert

ToolsTools MachinesMachines EnginesEngines ……

What isWhat is

ExamplesExamples

What do ME’s Study?What do ME’s Study? Mechanics: machines, structures, … machines, structures, … Fluids: aerodynamics, pumps/fans, … aerodynamics, pumps/fans, … Thermal Sciences: heating/cooling, energy, … heating/cooling, energy, … Controls: interface electronics, … interface electronics, … Manufacturing: matl’s handling/processing, … matl’s handling/processing, … More…More…

Modern Mechanical EngineeringModern Mechanical Engineering

THE FUTURE:THE FUTURE:ALTERNATIVE ENERGYALTERNATIVE ENERGY

Alternative Energy - MotivationAlternative Energy - Motivation

2% of the Worlds Oil Reserves2% of the Worlds Oil Reserves

In the United States…

2% of the Worlds Oil Reserves2% of the Worlds Oil Reserves 8% of World Oil Production8% of World Oil Production



2% of the Worlds Oil Reserves2% of the Worlds Oil Reserves 8% of World Oil Production8% of World Oil Production 5% of Worlds Population5% of Worlds Population



2% of the Worlds Oil Reserves2% of the Worlds Oil Reserves 8% of World Oil Production8% of World Oil Production 5% of Worlds Population5% of Worlds Population 31% Total Oil Consumption31% Total Oil Consumption

(2/3 imported)(2/3 imported)



Why Oil?Why Oil?

Historical sources of energy:

Wood Coal Oil/Gas Nuclear

Why Oil?Why Oil?

Historical sources of energy:

Wood Coal Oil/Gas Nuclear

One barrel of oil =

12 person-years of manual labor

Global Oil Production & DemandGlobal Oil Production & Demand

Energy ConsumptionEnergy Consumption

What Should We Do?What Should We Do? Increase nuclear energy output?Increase nuclear energy output? Increase alternative energy output Increase alternative energy output

(solar, wind, wave, geothermal, …)(solar, wind, wave, geothermal, …) Reduce consumption?Reduce consumption? All of the above?All of the above? OR: Go back to the caves? OR: Go back to the caves? We can’t!We can’t!

Alternative Energy Sources…Alternative Energy Sources… NuclearNuclear HydroelectricHydroelectric GeothermalGeothermal WindWind Biomass, Agricultural Sources, and WasteBiomass, Agricultural Sources, and Waste SolarSolar Hydrogen from RenewablesHydrogen from Renewables

Complications….Complications….

Environmental Impact Environmental Impact CostCostSafetySafetyTechnologyTechnologyWill it make a dent?Will it make a dent?

So Why Try….So Why Try….

Application Specific EnergyApplication Specific EnergySolar PanelsSolar PanelsHydroelectric PowerHydroelectric PowerHydrogen Powered CarsHydrogen Powered Cars

Solar PowerSolar Power

Semiconductor(Silicon)

Hydrogen from RenewablesHydrogen from Renewables

DOE/EPA, 2005

Pushing the Envelope…Pushing the Envelope…

MEMSMEMS Micro-Electro-Mechanical-SystemsMicro-Electro-Mechanical-Systems

Small devices that integrate electronics, Small devices that integrate electronics, mechanics, and computing mechanics, and computing

Existing products: sensors for Existing products: sensors for acceleration (air bags), pressure (tires), acceleration (air bags), pressure (tires), temperature, ear implants, etctemperature, ear implants, etc

The future: biotech applications, sorting of The future: biotech applications, sorting of stem cells, biohazard sensors, etcstem cells, biohazard sensors, etc

MEMSMEMS Micro-Electro-Mechanical-SystemsMicro-Electro-Mechanical-Systems

Small devices that integrate electronics, Small devices that integrate electronics, mechanics, and computing mechanics, and computing

Existing products: sensors for Existing products: sensors for acceleration (air bags), pressure (tires), acceleration (air bags), pressure (tires), temperature, ear implants, etctemperature, ear implants, etc

The future: biotech applications, sorting of The future: biotech applications, sorting of stem cells, stem cells, biohazard sensorsbiohazard sensors, etc, etc

This is what I frequently work on!

How Small is Small?How Small is Small?


200 People200 People


650,000 Cans of Soda650,000 Cans of Soda


30,000,000 #2 Pencils30,000,000 #2 Pencils


>1x10>1x101515 MEMS Devices MEMS Devices(Quadrillions)(Quadrillions)

Tire Pressure SensorsTire Pressure Sensors

Cochlear ImplantsCochlear Implants

Cochlear ImplantCochlear Implant

MicromachinesMicromachines

What Else Does the Future Hold?What Else Does the Future Hold?

Nanotechnology – very small machines Nanotechnology – very small machines (one-billionth of a meter!) (one-billionth of a meter!)

Biotech AdvancesBiotech Advances ‘‘Space Age’ MaterialsSpace Age’ MaterialsMore – just use your imagination!More – just use your imagination!

Lesson OverviewLesson Overview

1. What is Mechanical Engineering?

2. Design: A Creative Problem-Solving Process (Straw Structure)

3. Dynamics: Gravity is Holding us Down! (Popsicle Stick Slingshot)

4. Why Things Float and Fly: Buoyancy and Aerodynamics (Airplanes)

5. Out of Control: The Need for Control System (Popsicle Stick Slingshot)

6. Manufacturing Madness (Assembly Line)

7. Energy and Work: Sources and Conversion (?)

8. Propulsion: How Fast Can You Go? (CO2 Propelled Boat)

9. Electromechanical Systems (Electric Motor)

10.Mechanical Vibrations: What’s Shaking?

MST@MSU MEMST@MSU ME

Straw StructureStraw StructureLesson 2 ActivityLesson 2 Activity

ObjectiveCreate a structure that will hold a bottle of water as high as possible.

DE

SIG

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Popsicle Stick SlingshotPopsicle Stick SlingshotLesson 3-5 ActivityLesson 3-5 Activity

ObjectiveCalibrate the slingshot from Lesson 3 to accurately propel a plastic ball to a target at an arbitrary distance.

ObjectiveCreate a ground level launching slingshot that will propel a plastic ball as far as possible.

CO

NT

RO

LS

/ D

YN

AM

ICS

Airplanes!Airplanes!Lesson 4 ActivityLesson 4 Activity

ObjectiveDesign a set of paper airplanes which will fly the furthest/stay aloft the longest

BO

UY

AN

CY

& A

ER

OD

YN

AM

ICS

Assembly LineAssembly LineLesson 6 ActivityLesson 6 Activity

ObjectiveCreate an assembly line that will produce eight bean-filled fish as quickly as possible.

MA

NU

FA

CT

UR

ING

Energy and WorkEnergy and WorkLesson 7 ActivityLesson 7 Activity

ObjectiveTBD

EN

ER

GY

& W

OR

K

COCO22 Propelled Boat Propelled BoatLesson 8 ActivityLesson 8 Activity

ObjectiveCreate a CO2 propelled boat that travels the greatest distance in the minimum amount of time.

PR

OP

UL

SIO

N

COCO22 Propelled Boat Propelled BoatLesson 8 ActivityLesson 8 Activity

PR

OP

UL

SIO

N


Electric MotorElectric MotorLesson 9 ActivityLesson 9 Activity

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Mechanical Engineering? What is MST @ MSU 2006 Jeff Rhoads and Terry Ballinger.

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Transcript of Mechanical Engineering? What is MST @ MSU 2006 Jeff Rhoads and Terry Ballinger.