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

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mechanical engineering

Mechanical Engineering?

Jeff Rhoads and Terry Ballinger

What is

MST @ MSU

2006

outline
Outline
  • What is Engineering?
  • Intro to Engineering Movie
  • What is Mechanical Engineering?
  • Sample ME Topics
    • Alternative Energy Sources
    • MEMS
  • Lesson Overview
what is engineering4
What is Engineering?
  • The application of science & mathematics to design, build, and maintain devices and processes that are useful to humankind.
what is engineering5
What is Engineering?

Useful Things

Stuff

convert

what is engineering6
What is Engineering?

Useful Things

Stuff

convert

  • Matter
  • Sources of Energy
  • Cars
  • Air Conditioners
  • Bridges
  • Clean Water

…useful to humankind

mechanical engineering8

What is

Mechanical Engineering?

Mechanical Energy

Non-Mechanical Energy

convert

mechanical engineering9

What is

Mechanical Engineering?

Mechanical Energy

Non-Mechanical Energy

convert

  • Electrical
  • Chemical
  • Thermal
  • Nuclear
mechanical engineering10

What is

Mechanical Engineering?

Mechanical Energy

Non-Mechanical Energy

convert

  • Electrical
  • Chemical
  • Thermal
  • Nuclear
  • Potential
  • Kinetic
mechanical engineering11

What is

Mechanical Engineering?

Mechanical Energy

Non-Mechanical Energy

convert

Conversion involves the design and manufacture of:

  • Tools
  • Machines
  • Engines
what do me s study
What do ME’s Study?
  • Mechanics: machines, structures, …
  • Fluids: aerodynamics, pumps/fans, …
  • Thermal Sciences: heating/cooling, energy, …
  • Controls: interface electronics, …
  • Manufacturing: matl’s handling/processing, …
  • More…
alternative energy motivation
Alternative Energy - Motivation

In the United States…

  • 2% of the Worlds Oil Reserves
alternative energy motivation19
Alternative Energy - Motivation

In the United States…

  • 2% of the Worlds Oil Reserves
  • 8% of World Oil Production
alternative energy motivation20
Alternative Energy - Motivation

In the United States…

  • 2% of the Worlds Oil Reserves
  • 8% of World Oil Production
  • 5% of Worlds Population
alternative energy motivation21
Alternative Energy - Motivation

In the United States…

  • 2% of the Worlds Oil Reserves
  • 8% of World Oil Production
  • 5% of Worlds Population
  • 31% Total Oil Consumption

(2/3 imported)

why oil
Why Oil?

Historical sources of energy:

Wood  Coal  Oil/Gas  Nuclear

why oil23
Why Oil?

Historical sources of energy:

Wood  Coal  Oil/Gas  Nuclear

One barrel of oil

12 person-years of manual labor

=

what should we do
What Should We Do?
  • Increase nuclear energy output?
  • Increase alternative energy output (solar, wind, wave, geothermal, …)
  • Reduce consumption?
  • All of the above?
  • OR: Go back to the caves? We can’t!
alternative energy sources
Alternative Energy Sources…
  • Nuclear
  • Hydroelectric
  • Geothermal
  • Wind
  • Biomass, Agricultural Sources, and Waste
  • Solar
  • Hydrogen from Renewables
complications
Complications….
  • Environmental Impact
  • Cost
  • Safety
  • Technology
  • Will it make a dent?
so why try
So Why Try….
  • Application Specific Energy
    • Solar Panels
    • Hydroelectric Power
    • Hydrogen Powered Cars
solar power
Solar Power

Semiconductor

(Silicon)

mems micro electro mechanical systems
MEMSMicro-Electro-Mechanical-Systems
  • Small devices that integrate electronics, mechanics, and computing
  • Existing products: sensors for acceleration (air bags), pressure (tires), temperature, ear implants, etc
  • The future: biotech applications, sorting of stem cells, biohazard sensors, etc
mems micro electro mechanical systems34
MEMSMicro-Electro-Mechanical-Systems
  • Small devices that integrate electronics, mechanics, and computing
  • Existing products: sensors for acceleration (air bags), pressure (tires), temperature, ear implants, etc
  • The future: biotech applications, sorting of stem cells, biohazard sensors, etc

This is what I frequently work on!

how small is small37
How Small is Small?

650,000 Cans of Soda

how small is small38
How Small is Small?

30,000,000 #2 Pencils

how small is small39
How Small is Small?

>1x1015 MEMS Devices

(Quadrillions)

what else does the future hold
What Else Does the Future Hold?
  • Nanotechnology – very small machines (one-billionth of a meter!)
  • Biotech Advances
  • ‘Space Age’ Materials
  • More – just use your imagination!
lesson overview

[email protected] ME

Lesson Overview

What is Mechanical Engineering?

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

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

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

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

Manufacturing Madness (Assembly Line)

Energy and Work: Sources and Conversion (?)

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

Electromechanical Systems (Electric Motor)

Mechanical Vibrations: What’s Shaking?

straw structure

Lesson 2 Activity

Straw Structure

Objective

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

DESIGN

popsicle stick slingshot

Lesson 3-5 Activity

Popsicle Stick Slingshot

Objective

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

CONTROLS / DYNAMICS

Objective

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

airplanes

Lesson 4 Activity

Airplanes!

BOUYANCY & AERODYNAMICS

Objective

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

assembly line

Lesson 6 Activity

Assembly Line

MANUFACTURING

Objective

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

assembly line51

Lesson 6 Activity

Assembly Line

MANUFACTURING

Objective

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

energy and work

Lesson 7 Activity

Energy and Work

ENERGY & WORK

Objective

TBD

co 2 propelled boat

Lesson 8 Activity

CO2 Propelled Boat

PROPULSION

Objective

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

co 2 propelled boat54

Lesson 8 Activity

CO2 Propelled Boat

PROPULSION

Objective

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

electric motor

Lesson 9 Activity

Electric Motor

Electromechanical Systems

Objective

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

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