Gen Eng 205-3: EA-3 Systems Dynamics                Fall 2007

Course_Info           Announcements        Homework        Lecture_Notes       Tutorial Problems

Announcements:

-        Quiz III – 10-10.55am, Friday, Nov 30, 2007

-        Review Set 3

 

 

Assignments:

 

Download problem sets as they become active.

Homework

Associated Files 

Due Date

Pset 1

 

Tuesday, Oct 2, 2007

 

Pset 2

electron.m ; (please note that you may have to modify these programs suitably)

Tuesday, Oct 9, 2007

 

Pset 3

 

Tuesday, Oct 16, 2007

 

Pset 4

spring_block_comp.m
rate_fn.m
(you will need to modify the above)

Tuesday Oct 30, 2007

 

Pset 5

sd_1s1m1d.m

rate_fn.m
(you will need to modify these files)

Tuesday Nov 6, 2007

 

Pset 6

Use and modify appropriate m-files

Tuesday, Nov 13, 2007

 

Pset 7

Modify appropriate codes from mechanical systems

Tuesday, Nov 27, 2007

 

Computer Assignment

The extra credit problem here has to be sent in by email to me and the TA.

Thursday, Dec 06, 2007

 

 

 

 

 

 

 

 

 

 

 

 

Lecture Notes:


 

 

Status

Topic 

1.

Ready to download

Introduction: 

(what EA3 is all about)

2.

Ready to download

Dynamics of particles: 

(equations of motion, analytical solutions, numerical solution using the forward Euler algorithm)

Associated Matlab files:  projectile.m  

3.

Ready to download

Undamped Spring-block oscillator - Part 1

Spring-block Oscillators-1: (equations of motion, analytical solution)

    codes: undamped_springblock.m

Supplementary material: complex_exponentials

 

 4.

Ready to download

Energy Methods:

energy

5.

Ready to download

Friction: 

friction

 

6.

Ready to download

Momentum Methods: 

momentum

7.

Ready to download

Undamped Spring-block oscillator - Part 2


Spring-block Oscillators-2:  (better numerical algorithms including Runge-Kutta);              

    codes: (put both of these in the same directory) spring_block_comp.m and rate_fn.m

 

7.

Part 1

Ready to download

Part 2

Ready to download

Part 3

Ready to download

Part 4

Ready to download

Part 5

Ready to download

 

Mechanical Systems:

Part 1:  basic elements, analysis procedure, spring-mass and spring-damper systems

Part 2:  damped oscillations

Part 3:  forced oscillations and resonance: 

codes: sd_ex1s1m1f.m and frate_fn.m 

Supplementary material: 
Euler's Differential Equations

Part 4:  Normal modes of systems of several springs and masses: 

codes: 
(sd_ex2s2m.m needs rate_fn.m)
eigen_modes.m

Part 5:  Weakly-coupled systems

codes: ( sd_weak_couple.m and rate_fn.m)

 

8.

Ready to download

Transitioning to other domains: 

Rotational mechanical systems

Table: elements for translational and rotational mechanical systems

9.

Part 1

Ready to download

Part 2

Ready to download

Part 3

Ready to download

 

Electrical Systems:

Part 1: basic circuit elements; Kirchhoff's rules; RC-circuit

Part 2: LC-oscillator

codes: (lc_oscillator.m needs frate_fn.m)

Part 3: tone-control circuit

codes: ( tone_control.m needs frate_fn.m )

 

 

Ready to download

 

Some Interesting Behavior of Electrical and Mechanical Systems:

Pulse propagation:

Transmission Line:

codes: ( tline64.m needs frate_fn.m )  



 

 

 


 

Tutorial Problems:

Week 1:  tutorial1.pdf

Week 2: tutorial2.pdf

 

 

Review Problem Sets:

Review Set 1

Review Set 2

Review Set 3

 

Course Information:
Instructor:

Prof. Sridhar Krishnaswamy

323 Catalysis Building

Tel: 1-4006

email: s-krishnaswamy@northwestern.edu

Office Hours: by appointment 

Teaching Assistant:

Yun Young Kim          

331 Catalysis Building

Email: yykim@northwestern.edu

Office hours: Mondays 3.00pm - 5.00pm;  Thursdays: 11.00am – 1.00pm

Class Hours:

MTWThF 10.00-10.50am (some days will be for tutorial discussion)

Computer Lab:

Matlab is available in the Engineering First computer labs in Tech.
You are also supposed to have purchased individual copies for your own computers.

Grading:

30%: Homework assignments

20%: Quiz 1   -  10/17/07

20%: Quiz 2   -  11/16/07

20%: Quiz 3   -  11/30/07

10%: Computer Projects – due 12/06/07

Course Policy:

Homework assigned during a week will be due by start of class Tuesday of the following week unless otherwise stated. Late homework will not be accepted for any reason. There will be no makeup assignments for missed homework.  You will learn quite a bit through homework assignments in this course, hence the unusually large per cent weightage.  You may (indeed I encourage you to) discuss homework problems in groups. However, when you sit down to write up the solutions, you should do so separately and individually.

There will be three fifty-minute quizzes. Makeup quizzes will follow university policy  (i.e., provide a really valid excuse for missing the regular exam as verified by the Office of the Associate Dean for Undergraduate Affairs) and will only be offered by prior arrangement.
 

Resources:

1. Bedford and Fowler, Statics and Dynamics (you should have these books from EA2)
2. Web notes (not the Spring quarter notes, but the ones accessible from this page)
3.  MATLAB