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EM406 - Vibrations

Minimum Reading and Homework Schedule for Fall Quarter 2008-2009.  If I use PowerPoint slides for a lecture they will be posted on Angel.

Note:  Selected answers are given for each HW set by clicking on the "hints" below.  These are provided for you to check your work.  If you get one of these answers and it does not follow from your work the grader has been told to give you a ZERO for the problem.  The second time it happens you will get a zero for your homework grade.  The answers provided are not guaranteed to be correct.  If you get a different answer be sure to talk to your professor and email cornwell@rose-hulman.edu with any corrections. Complete solutions to these problems may be found in the library after the due date. I reserve the right to change any of the assigned HW problems before the actual assignment date (so be careful if working ahead).

Wk/Le

Day Date Topic Reading

Homework

HW Set*

1/1

R

Sept 4 Introduction and Modeling (review from ES205)   1.1-1.6

Le 1 (hints)

1

1/2

M

Sept 8 Modeling, SDOF systems

1.7-1.10

Le 2 (hints)

1

1/3

T

Sept 9 SDOF systems undamped 2.1-2.5

Le 3 (hints)

2

2/4

R

Sept 11 SDOF systems viscous damping 2.6

Le 4 (hints)

2 (#1 due)

2/5

M

Sept 15 SDOF coulomb damping 2.7

Le 5 (hints)

2

2/6

T

Sept 16 Harmonically Excited Systems 3.1-3.4

Le 6 (hints)

3

3/7

R

Sept 18 Harmonically Excited Systems 3.4-3.5

Le 7 (hints)

3 (#2 due)

3/8

M

Sept 22 Base Motion 3.6

Le 8 (hints)

3

3/9

T

Sept 23 Rotating Unbalance 3.7

Le 9 (hints)

4

4/10

R

Sept 25 Vibration Isolation 9.9

Le 10 (hints)

4  (#3 due)

4/11

M

Sept 29 Review     (#4 due)

4/12

T

Sept 30 Test 1        

5/13

R

Oct 2 Fourier Series (the files can be found using the links to the right or Angel.)  To look at the old file (as a .pdf) click here or as a Maple 12 file click here.  These files seem to have some problems with them, but they give you an idea of what they are supposed to look like. 1.11

Click here for worksheet (old) or for Maple 12 click using right mouse and use "save as" new)

5

5/14

M

Oct 6 General Periodic Forcing 4.1-4.2

Le 14 (hints)

5

5/15

T

Oct 7 Discrete Forcing 4.3-4.6

Le 15

6

6/16

R

Oct 9 Convolution
(Maple worksheet)
4.3-4.6

Le 16

6 (#5 due)

6/17

M

Oct 13 Free Response of 2-DOF Systems 5.1-5.3

Le 17 (hints)

7

6/18

T

Oct 14 2-DOF systems (continued) 5.4-5.5

Le 18 (hints)

7 (#6 due)

 

R

Oct 16 Break  

 

 

7/19

M

Oct 20 Forced Vibrations for 2-DOF Systems 5.6

Le 19 (hints)

7

7/20

T

Oct 21 Vibration Absorber 9.10

Le 20 (hints)

8

7/21

R

Oct 23 Lagrange's Equations 6.5-6.7

Le 21 (hints)

8 (#7 due)

8/22

M

Oct 27 Lagrange's Equations  

Le 22 (hints)

8

8/23

T

Oct 28 Review  

Le 23

 

8/24

R

Oct 30

Test 2

    #8 due

9/25

M

Nov 3 Free vibration MDOF systems 6.1, 6.3,6.8-6.10 Le 25 (hints)

9

9/26

T

Nov 4 Structural Eigenvalue Problem and Orthogonality 6.11-6.14 Le 26 (hints)

10

9/27

R

Nov 6 Analytical Modal Analysis handout Le 27

10

10/28

M

Nov 10 Analytical Modal Analysis 6.14 Le 28

10 (#9 due)

10/29

T

Nov 11 Analytical Modal Analysis 6.15 Le 29

10

10/30

R

Nov 13 Review and Evaluations    

(#10 due)