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 – Spring 2015

 

Monday

Tuesday

Wednesday

Thursday

Friday

 

7:30 AM

 

 

 

 

 

 

8:00 AM

 

 

Office Hours

 

 

 

8:30 AM

 

 

 

 

 

 

9:00 AM

 

 

 

 

 

 

9:30 AM

 

 

 

 

 

 

10:00 AM

 

 

MET 213

 

 

 

10:30 AM

 

MET 213

ME 1015

MET 213

 

 

11:00 AM

 

Weth 320

 

Weth 320

 

 

11:30 AM

 

 

 

 

 

 

12:00 PM

 

 

 

 

 

 

12:30 PM

 

 

 

 

 

 

1:00 PM

 

 

 

 

 

 

1:30 PM

 

 

 

 

 

 

2:00 PM

 

 

MET 213

 

 

 

2:30 PM

 

 

ME 1015

 

 

 

3:00 PM

 

 

 

 

 

 

3:30 PM

 

 

 

 

 

 

4:00 PM

 

 

 

 

 

 

4:30 PM

MET 503

 

MET 503

 

MET 503

 

5:00 PM

Knoy B031

 

Knoy B031

 

Knoy B031

 

5:30 PM

 

 

 

 

 

 

6:00 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

1/13

Intro to Dynamics

 

 

 

1/14

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

 

 

1/15

Motion Diagrams

 

Set 1:

12 – 1, 3, 4, 9, 15

 

Due: 1/22

2

1/20

Position, Velocity, Acceleration

Ballistic Flight

Example Problem

Two Stage Rocket Sled

 

 

1/21

Measuring g with a pendulum

 

 

1/22

Set 2:

12-39, 40, 45, 46, 47

 

Due: 1/29

3

1/27

Airliner Takeoff Example

Drop Tower Example

Set 3, Page 48:

12-89, 91, 94, 95, 101

 

Due: 2/3

 

1/28

Kinematics in two dimensions

Simultaneous Impact

 

Drop Tower Video:

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

 

 

1/29

Kinematics Example Problems

 

 

4

2/3

Measuring Acceleration of Gravity Using Falling Objects

 

Set 4, Page 49:

12-93, 97, 99, 102, 108

 

Due: 2/10

 

2/4

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

 

 

2/5

Exam Review

 

 

5

2/10

In Class Exam

Open Book

Open Notes

Exam 1

 

Practice Exam 1

Answer Key

 

Practice Exam 2

Answer Key

 

2/11

Intro to Kinetics

 

 

 

 

2/12

Falling Ball Experiment

 

6

2/17

Analysis Ball Drop Experiment

Terminal Velocity

 

2/18

Block on a ramp

 

 

 

 

2/19

Block on Accelerating Ramp

 

Set 5, page 61:

12-114, 115, 121, 124, 129

 

Due: 2/26

7

2/24

Kinetics Example:  Braking and Acceleration Force

Car on Ramp

2/25

Tennis Ball Catapult

Revisiting the Accelerating Ramp Problem

 

 

 

2/26

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

Set 6, Page 122:

 

13 – 2, 4, 5, 8, 9, 10

 

Due: 3/5

8

3/3

 

 

3/4

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

 

 

3/5

 

 

9

3/10

 

 

3/11

Exam Review

Practice Exam 2005 Answer key

 

Practice Exam 2006 Answer key

 

3/12

Exam 2

 

10

3/17

 

 

3/18

 

Spring Break

 

 

3/19

 

 

 

11

3/24

Circular Motion

Merry Go Round

Acceleration on curved, non-circular path

 

Set 7, Page 124:

 

13 – 17, 18, 19, 21, 25, 27, 44

 

Due: 3/31

 

3/25

 

 

 

 

3/26

Circular Orbits

 

 

12

3/31

Non-circular orbits

 

Set 8, Page 138 :

13-53, 57, 58, 61, 62, 63

 

Due: 4/7

 

4/1

Relationship between linear and rotational motion

Rotational Acceleration

 

 

4/2

Mass Moment of Inertia

Disk Rolling Down a Ramp

 

Set 9, Page 163:

13-113, 114, 115, 118, 119

 

Due

13

4/7

Rotational Acceleration

Accelerating Merry Go Round

Accelerating Car in Turn

 

 

 

4/8

Mass Moment of Inertia of Composite Bodies

 

Set 10, Page 323:

16-1, 2, 5, 9, 13, 17

 

Due

 

4/9

Change in period when mass is added

 

 

14

4/14

Work and Energy

 

 

 

4/15

Work and Energy

 

Set 11, Page 420:

17-25, 33, 34, 35, 38, 45

 

Due

 

4/16

Impulse and Momentum

 

 

15

4/21

Impulse and Momentum

 

 

 

4/22

 

4/23

16

 

Review for Exam 3

 

 

 

Exam 3

 

 

17

 

 

Dead Week

 

 

 

 

 

 

Catapult Testing

Fall 2014 Catapult Videos

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.