MET 213 – Dynamics                                                        Spring 2015

 

 

Text:  Engineering Mechanics: Dynamics 13th Edition by R.C. Hibbeler

 

Instructor:

 

Mark French

121 Knoy

Desk:  765-494-7621

Mobile:  765-714-9382

e-mail:  rmfrench@purdue.edu

 

Here’s My Schedule:

 

Mark French Office Schedule – Fall 2015

 

Monday

Tuesday

Wednesday

Thursday

Friday

 

7:30 AM

 

 

 

 

 

 

8:00 AM

 

 

 

 

 

 

8:30 AM

MET 581

 

MET 581

 

MET 581

 

9:00 AM

BRNG 1268

 

BRNG 1268

 

BRNG 1268

 

9:30 AM

 

 

 

 

 

 

10:00 AM

 

 

Office Hours

 

 

 

10:30 AM

 

 

 

 

 

 

11:00 AM

 

 

 

 

 

 

11:30 AM

 

 

 

 

 

 

12:00 PM

 

 

 

 

 

 

12:30 PM

MET 213

 

Met 213

 

 

 

1:00 PM

BRNG 2290

 

BRNG 2290

 

 

 

1:30 PM

MET 213

 

MET 213

 

 

 

2:00 PM

ME 1015

 

ME 1015

 

 

 

2:30 PM

 

 

 

 

 

 

3:00 PM

 

 

 

 

 

 

3:30 PM

 

 

 

 

 

 

4:00 PM

 

 

 

 

 

 

4:30 PM

 

 

 

 

 

 

5:00 PM

 

 

 

 

 

 

 

 

If you need to reach me, my email address is:  rmfrench@purdue.edu

 

Official office hours are in green.  However, my door is open pretty much whenever I’m in the office.  If the door is open, you’re welcome to stop by.  If, for some reason, I’m too busy to talk with you, we’ll make an appointment.

 

Homework:

You will learn much more if you do the homework.  All homework sets should be handed in in class the day on which they are due.  Every homework problem is worth 10 points.  Feel free to work with one another on homework as long as everyone is participating and learning.  Everyone must hand in their own work. 

 

Homework sets handed in up to one week late will be penalized 50%.  Homework will not be accepted more than one week late without prior arrangement.

 

For all homework problems:

 

 

Grading:

Exam 1                       15%

Exam 2                       20%

Exam 3                       20%

Homework                 15%

Catapult Project        15%

Lab Assignments     15%

 

 

Extra Credit: 

I want students to start noticing dynamics in the world outside of class.  To foster this, each student may bring in an example that demonstrates some principle from class.  You will be asked to give a 5-10 min explanation to the class.  If your example and explanation are correct and relevant, two points will be added to your final class average.  Each student may do two demonstrations during the semester.

 

 

Current Syllabus

This syllabus will be changed regularly to accommodate your needs

 

 

 

Week

Date

Subject

Supplementary Material

Homework

 

 

 

 

1

8/24

Intro to Dynamics

 

 

 

8/26

Introduction, Kinematics

Motion Diagrams

Aircraft Catapult Example

 

Expressions for Constant Acceleration:

http://www.youtube.com/watch?v=TlZBXHsZFNU

 

Motion Diagrams:

http://www.youtube.com/watch?v=Eqx-mURTdKY

 

 

8/28

 

HW #1 – Motion Diagrams

 

Due Date:  9/2

2

8/31

Motion Diagrams

Position, Velocity, Acceleration

Ballistic Flight

Example Problem

Two Stage Rocket Sled

 

 

9/2

Airliner Takeoff Example

Drop Tower Example

HW #2 – Position, Velocity and Acceleration

 

Due Date: 9/9

 

 

Lab

Measuring g with a pendulum

3

9/7

Labor Day – No Class

 

 

9/9

Kinematics in two dimensions

Simultaneous Impact

 

Drop Tower Video:

http://www.youtube.com/watch?v=pqqYxWnoreg

HW #3 – Motion in Two Dimensions

 

Lab

Kinematics Example Problems

 

4

9/14

Measuring Acceleration of Gravity Using Falling Objects

 

 

 

9/16

Ping Pong Ball Drop Article

Ping Pong Ball Drop Example Analysis

Kinematics Equations

Variable Acceleration

Mathcad Example – Symbolic Calculations

Ballistics – Spud Gun Example

Ball drop practice data

Ball Drop Experiment

Article Showing Analytical Result

 

YouTube video on terminal Velocity:

http://www.youtube.com/watch?v=rWeZnq3fbn0

 

 

Lab

Exam Review

 

 

5

9/21

In Class Exam

Open Book

Open Notes

Exam 1

 

Practice Exam 1

Answer Key

 

Practice Exam 2

Answer Key

 

 

9/23

Intro to Kinetics

 

 

HW# 4 – Motion of a Falling Ball with Aerodynamic Drag

 

9/25

Falling Ball Experiment

 

6

9/28

Analysis Ball Drop Experiment

Terminal Velocity

 

 

9/30

Block on a ramp

 

 

HW #5 – Acceleration on a Ramp

 

10/2

Block on Accelerating Ramp

 

 

7

10/5

Kinetics Example:  Braking and Acceleration Force

Car on Ramp

 

10/7

Tennis Ball Catapult

Revisiting the Accelerating Ramp Problem

 

 

 

10/9

Connected Bodies and Pulleys

Pulley Example

 

Here are some pulley examples on the YouTube Channel:

http://www.youtube.com/watch?v=7pnHEwZvVnY

 

http://www.youtube.com/watch?v=SMu3-CeDbdk

 

http://www.youtube.com/watch?v=VTEeoSSCalI

 

http://www.youtube.com/watch?v=8c_KTdxKyiw

HW #6 – Braking and Acceleration, Connected Bodies and Pullies

8

10/12

October Break – No Class

 

10/14

Kinetics of Rotation Acceleration on a circular path Car in Banked Turn

·         Race Car Turn Problem

·         Turn Problem 2

·         Race Car Downforce

·         Race Car Downforce 2

·         Orbital Velocity

 

 

10/16

 

 

9

10/19

 

 

10/21

Exam Review

Practice Exam 2005 Answer key

 

Practice Exam 2006 Answer key

 

 

10/23

Exam 2

 

10

10/26

 

Thanksgiving Vacation – No Class

 

 

10/28

 

 

 

 

10/30

 

 

 

11

11/2

Circular Motion

Merry Go Round

Acceleration on curved, non-circular path

 

 

 

11/4

 

 

 

 

11/6

Circular Orbits

 

 

12

11/9

Non-circular orbits

 

 

 

11/11

Relationship between linear and rotational motion

Rotational Acceleration

 

 

11/13

Mass Moment of Inertia

Disk Rolling Down a Ramp

 

 

13

11/16

Rotational Acceleration

Accelerating Merry Go Round

Accelerating Car in Turn

 

 

 

11/18

Ping Pong Ball Drop Experiment

 

Zip File containing the four video clips we shot on class on 4/8

 

 

11/20

Mass Moment of Inertia of Composite Bodies

 

 

14

11/23

Work and Energy

 

 

 

11/25

Work and Energy

 

 

 

11/27

Impulse and Momentum

 

 

15

11/30

Impulse and Momentum

 

 

 

12/2

Review for Exam 3

 

12/4

Exam 3

16

12/7

Dead Week

Review of Calculating Stored Energy in Catapults

 

12/9

Catapult Testing

Meet at the playing fields on Airport Rd during scheduled lab time

Morning Catapult Testing

 

Afternoon Catapult Testing

 

Makeup Testing from Friday

 

Monday Makeup Testing

 

12/11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Safety:

“As we begin this semester I want to take a few minutes and discuss emergency preparedness. Purdue University is a very safe campus and there is a low probability that a serious incident will occur here at Purdue. However, just as we receive a “safety briefing” each time we get on an aircraft, we want to emphasize our emergency procedures for evacuation and shelter in place incidents. Our preparedness will be critical if an unexpected event occurs.

 

Emergency preparedness is your personal responsibility. Purdue University is continuously preparing for natural disasters or human-caused incidents with the ultimate goal of maintaining a safe and secure campus. Let’s review the following procedures:

 

·         There are nearly 300 Emergency Telephones outdoors across campus and in parking garages that connect directly to the Purdue Police Department (PUPD). If you feel threatened or need help, push the button and you will be connected immediately.

 

·         If we hear a fire alarm, we will immediately suspend class, evacuate the building, and proceed outdoors, and away from the building. Do not use the elevator.

 

 

 

 

 

 

Course Objectives:

 

Upon successful completion of this course, the student should be able to:

 

1.   Distinguish between problems requiring a Statics solution and problems requiring a Dynamics solution (i.e., Bodies that require a Statics solution have no acceleration.)

 

2.   Identify the different types of dynamics problem (i.e., Kinematics, Kinetics, Rigid Body, Particle).

 

3.   Select the appropriate solution method for the different problem types (i.e., Kinematics, Equation of Motion, Work/Energy Principles, Conservation of Energy, Impulse/Momentum, and Conservation of Momentum).

 

4.   Properly apply each of the solution methods.

 

5.   Properly construct motion diagrams for the solution of Kinematics problems.

 

6.   Properly draw supporting diagrams for Kinetics problems (i.e., Free Body Diagram, Kinetic Diagram, Impulse/Momentum Diagram, etc.).

 

7.   Properly calculate the mass moment of inertia for basic and composite shapes.

 

8.   Select the appropriate coordinate system type (i.e., x-y or n-t) and location for the various problem types.