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									LOUISIANA TECH UNIVERSITY
MECHANICAL ENGINEERING PROGRAM
College of Engineering and Science




Freshman Engineering
                   Overview of the
           Living with the Lab
                 Course Sequence
LOUISIANA TECH UNIVERSITY
MECHANICAL ENGINEERING PROGRAM
College of Engineering and Science




     Louisiana Tech                  10,607 students
     Seven Engineering Programs       1,123 students
      LOUISIANA TECH UNIVERSITY
      MECHANICAL ENGINEERING PROGRAM
      College of Engineering and Science   Motivation
Challenges
• Population growth
• Fresh water shortages
• Energy demands
• Aging infrastructure
• Global warming
• New diseases
• Security


                                                Source: Dr. Wayne Clough
                                                Engineer of 2020 Project
                                                ASEE Presentation, June 2005
            LOUISIANA TECH UNIVERSITY
            MECHANICAL ENGINEERING PROGRAM
            College of Engineering and Science
                                                                   Breakthroughs
                                                                    Sustainable Technology




 cheap technology      +     “flat” world       +    more people         =    accelerating rate of change

                                            •   Strong analytical skills
                                            •   Practical ingenuity & creativity
                                                                                  Microelectronics/ telecommunications
                                            •   Good communication skills
                                            •   Business, management skills
                                            •   High ethical standards, professionalism
                                            •   Dynamic, agile, flexible & resilient
 Nanotechnology                             •       Biotechnology/
                                                Lifelong learners
                                                    nanomedicine
                                            •   Able to put problems in their socio-
                                                technical and operational context
                                            •   Adaptive leaders


 We believe that technology-enabled, project-based education helps build these attributes in
 our students.
                                                                                                    Logistics


                                                                                              Source: Dr. Wayne Clough
Photonics/optics                                                                              Engineer of 2020 Project
                      Manufacturing                                                           ASEE Presentation, June 2005
           LOUISIANA TECH UNIVERSITY
           MECHANICAL ENGINEERING PROGRAM
           College of Engineering and Science



              Fall                              Winter                            Spring



Course               Credits   Course                    Credits   Course                  Credits


ENGR 120                  2    ENGR 121                        2   ENGR 122                          2


MATH 240                  3    MATH 241                        3   MATH 242                          3


CHEM 100                  2    CHEM 101 / 103                2/1   PHYSICS 201*                      3
      LOUISIANA TECH UNIVERSITY
      MECHANICAL ENGINEERING PROGRAM
      College of Engineering and Science




          Living with the Lab
• Each student owns their own “lab” consisting of
  –   a laptop
  –   tools (multimeter, dial caliper, wire strippers, . . .) $80
  –   software (Mathcad, SolidWorks, MS Office)
  –   a robot kit (the Boe-Bot) to provide a personal “lab” $100


• Student owned labs provide a way to boost
  hands-on learning beyond what is possible using
  traditional university laboratories
         LOUISIANA TECH UNIVERSITY
         MECHANICAL ENGINEERING PROGRAM
         College of Engineering and Science




   Freshman Projects
       Laboratory
Two classrooms designed to support
the curriculum
    (40 students, 24 students)

Classrooms allow us to easily switch
between lecture, laboratory and shop
activities within a single 110 minute
class period.
        LOUISIANA TECH UNIVERSITY
        MECHANICAL ENGINEERING PROGRAM
        College of Engineering and Science




        Seven “Threads” Define the Freshman Experience
1. SYSTEMS – one major project per quarter

2. ELECTROMECHANICAL – breadboarding, sensors, control

3. FABRICATION AND ACQUISITION – shop activities; locate, specify and purchase components

4. SOFTWARE – Excel, Mathcad, SolidWorks, Programming

5. FUNDAMENTALS
                  and DC circuits
       • electricity
       • conservation of energy
       • basic chemistry and electrochemistry
       • conservation of mass
       • least squares fitting to calibrate sensors
       • statics
       • engineering economics
6. COMMUNICATION – formatting problem solutions, oral presentations, writing assignments

7. BROADENING ACTIVITES
       • globaland societal issues
       • professional society meetings and student functions
       • teamwork and creative problem solving techniques
LOUISIANA TECH UNIVERSITY
MECHANICAL ENGINEERING PROGRAM
College of Engineering and Science



         First Half of ENGR 120
      LOUISIANA TECH UNIVERSITY
      MECHANICAL ENGINEERING PROGRAM
      College of Engineering and Science



ENGR 120 Project: Fabrication and Testing of Centrifugal Pump




          teams of 2 students, turning into groups of 4 for pump performance testing
LOUISIANA TECH UNIVERSITY
MECHANICAL ENGINEERING PROGRAM
College of Engineering and Science




                                     Approximate cost per pump = $5

                                     Two students can fabricate the pump in about 2 hours
      LOUISIANA TECH UNIVERSITY
      MECHANICAL ENGINEERING PROGRAM
      College of Engineering and Science



        ENGR 121 Project – The Fishtank
•   Closed loop control of temperature and salinity in a small tank
•   Teams of 2 initially later turning into teams of 4
LOUISIANA TECH UNIVERSITY
MECHANICAL ENGINEERING PROGRAM
College of Engineering and Science



   ENGR 121 Project – The Fishtank
LOUISIANA TECH UNIVERSITY
MECHANICAL ENGINEERING PROGRAM
College of Engineering and Science



ENGR 122 – Innovative Product Design
         LOUISIANA TECH UNIVERSITY
         MECHANICAL ENGINEERING PROGRAM
         College of Engineering and Science




 No Textbook – Course Materials are on Web




www.livingwiththelab.com
  LOUISIANA TECH UNIVERSITY
  MECHANICAL ENGINEERING PROGRAM
  College of Engineering and Science



Course sections are coordinated with
 common assignments and exams




                                   433 students were taught in fall 2008

                                       • 14 course sections (4 honors)
                                       • 8 faculty members
 LOUISIANA TECH UNIVERSITY
 MECHANICAL ENGINEERING PROGRAM
 College of Engineering and Science




Student Notes                         Instructor Notes




 Several hundred pages of notes define the courses.
   LOUISIANA TECH UNIVERSITY
   MECHANICAL ENGINEERING PROGRAM
   College of Engineering and Science




Student Homework                        Instructor Solutions
     LOUISIANA TECH UNIVERSITY
     MECHANICAL ENGINEERING PROGRAM
     College of Engineering and Science




CONCLUSION: We have implemented a six
semester hour, technology-enabled, project-based
experience that impacts over 400 first-year
engineering students each year.
                                •   Strong analytical skills
                                •   Practical ingenuity & creativity
                                •   Good communication skills
                                •   Business, management skills
                                •   High ethical standards, professionalism
                                •   Dynamic, agile, flexible & resilient
                                •   Lifelong learners
                                •   Able to put problems in their socio-
                                    technical and operational context
                                •   Adaptive leaders
   LOUISIANA TECH UNIVERSITY
   MECHANICAL ENGINEERING PROGRAM




            Acknowledgments
• NSF CCLI Grant No. 0618288
• Louisiana Tech University College of
  Engineering and Science
LOUISIANA TECH UNIVERSITY
MECHANICAL ENGINEERING PROGRAM
College of Engineering and Science

                  Questions?



                      2008 Freshman Design Expo
                                     May 7, 2008
      LOUISIANA TECH UNIVERSITY
      MECHANICAL ENGINEERING PROGRAM
      College of Engineering and Science


 History
• In 2002 we offered a pilot robotics-centered curriculum to 30 students

• In 2006 we received $498,000 NSF CCLI grant to expand the curriculum
  to all engineering students

• In the fall of 2007 we implemented the curriculum for all students


 Why?
• We wanted freshman design to be more than mousetrap cars and straw
  bridges

• We wanted to progressively build skills and competence so that
  freshmen could implement significant projects

• We wanted to make students more innovative
                LOUISIANA TECH UNIVERSITY
                MECHANICAL ENGINEERING PROGRAM
                College of Engineering and Science



                                                                            A1. Strong analytical skills
                                                                            A2. Practical ingenuity
Seven “Threads” define the freshman                                         A3. Creativity
                                                                            A4. Good communication skills
experience. The outcomes that support these                                 A5. Lifelong learners
threads are linked to the attributes of the                                 A6. Dynamic, agile, resilient and flexible characteristics
                                                                            A7. High ethical standards
Engineer of 2020 through the curriculum                                     A8. Leadership skills
objectives.                                                                 A9. Professionalism
                                                                            A10. Business and management skills


1. SYSTEMS                                                                  5. FUNDAMENTALS
• centrifugal pump – model, fabricate and test (A1,A2,A3,A6)                • electricity and DC circuits (A1)
• “fishtank” project – control temperature and salinity of water            • conservation of energy (A1)
(A1,A2,A3,A6)                                                               • basic chemistry and electrochemistry (A1)
• smart product – conceive, design and prototype (A1,A2,A3,A6)              • conservation of mass (A1)
                                                                            • least squares fitting to calibrate sensors (A1)
2. ELECTROMECHANICAL                                                        • statics (A1)
• breadboarding skills (A1, A2)                                             • engineering economics (A1)
• programmable controllers (A1,A2)
• multimeters for troubleshooting and measurement (A1,A2)                   6. COMMUNICATION
• electromechanical component specifications (A1,A2)                        • engineering format (A1,A4)
                                                                            • tables and graphs (A4)
3. FABRICATION AND ACQUISITION                                              • oral presentations (A4)
• conventional manufacturing processes (A2)                                 • writing assignments (A4)
• RTD (temperature sensor) – design and microfabrication (A1,A2)
• materials and components – locate, specify and purchase (A2)              7. BROADENING ACTIVITES
•specify and purchase materials, supplies or components for projects (A2)   • global and societal issues (A5,A6,A7)
                                                                            • professional society meetings and student functions (A7,A8,A9)
4. SOFTWARE                                                                 • multidisciplinary teams (A4,A8)
• Excel, Mathcad and SolidWorks (A1,A2)                                     • creative problem solving techniques for product development (A3)
• computer programming for sensing and control (A1,A2)                      • time and resource management for product development (A10)
           LOUISIANA TECH UNIVERSITY
           MECHANICAL ENGINEERING PROGRAM




  ENGR 120 – Sample Assignments (Engr. of 2020 Attributes)
1. Systems: Develop a 3D model of a centrifugal pump
      Analytical skills; ingenuity; creativity; dynamism & flexibility
2. Electromechanical: Breadboard a circuit and measure currents
      Analytical skills; ingenuity
3. Fabrication and Acquisition: Fabricate and test a centrifugal pump
      Analytical skills; ingenuity; creativity; dynamism & flexibility
4. Software: Use Mathcad to calculate efficiency of a centrifugal pump
      Analytical skills; ingenuity
5. Fundamentals: Calculate power dissipated by a resistor in an electrical circuit
      Analytical skills
6. Communication: Calculate the efficiency of a centrifugal pump using engineering format
      Communication
7. Broadening Activities
      Attend 5 professional student society meetings (high ethical standards; professionalism; dynamism)
      Prepare a 2-page paper on waste management and trends for the future (lifelong learning)
      Multidisciplinary teams (communication; leadership)
      Time and resource management (business and management skills)
           LOUISIANA TECH UNIVERSITY
           MECHANICAL ENGINEERING PROGRAM
           College of Engineering and Science



All students implement these sensors.               Some students implement these sensors,
                                                    depending on their chosen project.
Whisker
Photoresistors                                      Ultrasonic Range Finder
IR pairs                                            Accelerometer
Temperature Sensor                                  RF ID Tags and Reader
Conductivity Sensor                                 GPS Receiver
Hall Effect Sensor                                  Compass
RF Keychain Transmitter and Receiver                Force Sensor
LEDs                                                Temperature and Humidity Sensor
Buzzers                                             RF Communication Modules (Boe-Bot to Boe-Bot
Switchable Actuators: Pumps, motors, lights, etc.   communication)
Continuous Rotation Servos                          Embedded Blue Transceiver Appmod (add Bluetooth
                                                    capabilities to the Boe-Bot)
                                                    Color Sensor (senses RGB colors at a point)
                                                    CMUcam Vision System
                                    GPS sensor
                                                    Limited Rotation Servos
                                                    LCD Display Output
LOUISIANA TECH UNIVERSITY
MECHANICAL ENGINEERING PROGRAM
College of Engineering and Science




                      Application                 ENGR 122       ENGR
                                                 (traditional    122H
                                                 curriculum)    (LWTL)
          Assembly                                    3.10        11.19
          Bending                                     4.77         3.32
          Cutting internal or external threads         .55         1.62
          Drilling                                    4.29        13.14
          Implementing circuits on a                   .62        21.73
          breadboard
          Layout                                     2.24        10.05
          Milling                                     .09          .36
          Rapid Prototyping                           .71          .30
          Sawing                                     2.05         7.77
          Soldering                                  2.17        13.83
          Using a dial indicator                      .17         2.71
          Using a lathe                               .06         1.17
          Using a multimeter                         2.28         3.55
          Using a scale                              3.59         2.27
          Writing PBASIC programs                     .02        20.23

								
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