MET 213 Dynamics                                                            Spring 2017

 

 

Text: Note pack available at Boiler Copy in the Union

 

Instructor:

 

Mark French

121 Knoy

Desk: 765-494-7621

Mobile: 765-714-9382 (I’m happy to get a call or a text, but please not after 10:00 pm)

e-mail: rmfrench@purdue.edu

 

Here’s My Schedule:

 

Mark French Office Schedule Spring 2017

 

 

 

7:30 AM

 

 

 

 

 

8:00 AM

 

 

 

 

8:30 AM

 

 

Office Hours

 

 

9:00 AM

 

 

 

 

 

9:30 AM

 

 

 

 

 

10:00 AM

 

 

 

 

 

10:30 AM

MET 503

 

MET 503

 

MET 503

11:00 AM

Knoy B031

 

Knoy B031

 

Knoy B031

11:30 AM

 

 

 

 

 

12:00 PM

 

 

 

 

 

12:30 PM

MET 213

 

MET 213

 

MET 213

1:00 PM

BRNG 2290

 

BRNG 2290

 

BRNG 2290

1:30 PM

MET 213

 

MET 213

 

MET 213

2:00 PM

BRNG 2290

 

BRNG 2290

 

BRNG 2290

2:30 PM

 

 

 

 

 

3:00 PM

 

 

 

 

 

3:30 PM

 

 

 

 

 

4:00 PM

 

 

 

 

 

4:30 PM

 

 

 

 

 

5:00 PM

 

 

 

 

 

5:30 PM

 

 

 

 

 

6:00 PM

 

 

 

 

 

 

 

 

 

 

 

 

 

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 must be submitted electronically through Blackboard.  Each set must be submitted as a single PDF file.  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

20%

Exam 2

20%

Exam 3

25%

Homework

15%

Catapult Project

20%

 

 

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 5-8 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

1/9

Intro to Dynamics

 

 

 

1/11

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

 

 

1/13

 

Intro Homework:

 

1 – A car accelerates from a standing start at a rate of 4 m/sec^2.  A truck 500m down the road accelerates from a standing start at a rate of 2 m/sec^2.  How far has the car traveled when it catches the truck?  How many seconds does it take?

 

2 – An MET student want to throw a golf ball to the 6th floor window of a building.  She is next to the building, so there is no horizontal motion.  The window is 22m above the release point.  What is the initial velocity of the ball?

 

Submit your solutions on Blackboard.

 

 Due Date: 1/20

2

1/16

MLK Day

 

 

1/18

Motion Diagrams

Position, Velocity, Acceleration

Ballistic Flight

Example Problem

Two Stage Rocket Sled

 

Motion Diagram HW

Due: 1/25

 

Note:  You do not need to do the MATLAB portion of the HW

 

1/20

Airliner Takeoff Example

Drop Tower Example

3

1/23

 

 

 

 

1/25

Kinematics in two dimensions

Simultaneous Impact

 

Drop Tower Video:

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

Kinematics HW Set #1

 

Due: 2/1

 

1/27

 

 

4

1/30

Measuring Acceleration of Gravity Using Falling Objects

 

Kinematics HW Set #2

 

 

Due: 2/8

 

2/1

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

Kinematics HW Set #3

 

 

Due: 2/9

 

2/3

Terminal Velocity

Symbolic Math in Matlab

 

 

5

2/6

Kinetics – bodies moving under effect of a force

 

 

 

 

2/8

Review for Exam 1

Practice Exam 1

Answer Key

 

Practice Exam 2

Answer Key

 

 

2/10

Exam 1

 

In Class Exam

 

Open Book, Open Notes

Work Problems to 6 sig. fig.

Report Results to 4 sig. fig.

 

Bring a calculator capable of solving a nonlinear algebraic equation

6

2/13

 

 

 

2/15

Inertial force

Mass moving due to a force

Block on a ramp

 

Kinetics HW #1

 

Due: 2/22

 

2/17

 

 

 

7

2/20

Kinetics Example: Braking and Acceleration Force

Car on Ramp

Kinetics HW #2

 

Due: 2/27

2/22

Ballistic Flight with Aerodynamic Drag

 

 

 

2/24

Accelerating Ramps

 

8

2/27

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

Pulley HW

 

Due: 3/6

 

 

3/1

 

 

 

 

 

3/3

 

 

9

3/6

No Class

 

3/8

Exam Review

Practice Exam 2005 Answer key

 

Practice Exam 2006 Answer key

 

 

3/10

Exam 2

 

10

3/13

 

 

3/15

 

Spring Break

 

 

3/17

 

 

 

11

3/20

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

Banked Turn HW

 

Due: 3/27

 

 

3/22

Circular Motion

Merry Go Round

Acceleration on curved, non-circular path

Orbital Velocity

 

 

3/24

Circular Orbits

 

 

12

3/27

Non-circular orbits

 

Orbital Mechanics HW

 

Due: 4/3

 

3/29

Relationship between linear and rotational motion

Mass Moment of Inertia

 

 

 

3/31

Rotational Acceleration

Accelerating Merry Go Round

Accelerating Car in Turn

 

Mass Moment of Inertia HW

 

Due:  4/7

13

4/3

Mass Moment of Inertia of Composite Bodies

 

 

 

4/5

Work and Energy

 

 

 

 

4/7

Work and Energy – Conservation of Energy

 

Work and Energy HW

 

Due:  4/14

14

4/10

Impulse and Momentum

 

 

 

4/12

Conservation of Energy vs. Conservation of Momentum

 

Impulse and Momentum HW

 

Due: 4/23

 

4/14

Industrial Examples

 

 

15

4/17

Conservation of Momentum

 

 

 

4/19

Review for Exam 3

 

4/21

Exam 3

16

4/24

Dead Week

Review of Calculating Stored Energy in Catapults

 

4/26

Catapult Questions

 

 

4/27

Catapult Testing

Black Playing Field, 1:00 – 5:00

Here’s a link to the Google Map

 

Catapult Files 1

 

Catapult Files 2

 

 

 

4/28

Open

 

 

 

 

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.