CE 573 Structural Dynamics Homepage

CE573 Structural Dynamics

Welcome to the CE573 Fall'09 website.

Course Info

Syllabus
Class schedule: MWF 1:30-2:20 PM, CIVL 3153
Office hours: MW 2:30-4:30 PM, CIVL 4117

Term Exam 1: October 5, Monday, 8:00-10:00 PM -- room: ARMS 1010
Term Exam II: November 17, Tuesday, 8:00-10:00 PM -- room: CIVL 1144
Final Exam: December 15, Tuesday, 8:00-10:00 AM -- room: LWSN B155

Assignments

Homework 1 (Answers)
Homework 2 (Answers) (Link 1: Flat-plate free-vibration data; Link 2: NIST WTC study Appendix K)
Homework 3 (Answers)
Homework 4 (Answers)
Homework 5
Homework 6 (Link to 1994 Northridge earthquake Sylmar station record)
Homework 7
Homework 8
Homework 9 (due Friday, November 13, 1:30 PM)

Extra Documents

Tuned mass dampers presentation
Response spectra notes
Working Model files demonstrating response spectra concepts (file 1: different periods, same damping ratio and file 2: same period, different damping ratios)
Working Model file for viscously damped vs. friction damped SDOFs under harmonic loading example
Potpourri of first term exam problems from previous years

Reading Material, Relevant Websites

A method of computation for structural dynamics - N. Newmark [only for fair use]
Collocation, dissipation, and overshoot for time integration schemes in structural dynamics - Hilber and Hughes [only for fair use]
Damping in composite structures -- L.S. Jacobsen [only for fair use]
Structural damping values as a function of dynamic response stress and deformation levels - J.D. Stevenson [only for fair use]
An investigation into the theory of resonance testing -- Bishop and Gladwell[only for fair use]
Propagation of heat in solid bodies (in French). Article by J. Fourier, introducing "Fourier" series (1807)
Transient oscillations in elastic systems. General theorems. Vibrations of buildings during earthquake. Critical torsional vibrations of accelerated rotating shafts. Thesis by M. Biot (1932)
An investigation of the effects of earthquakes on buildings. Thesis by G.W. Housner (1941)
Biot response spectrum. Article by M. Trifunac (2006)
On ASCE-31 and ASCE-41. Article by G. Searer, T. Paret, and S. Freeman (2008) [only for fair use]
On tuned mass dampers, by J. Connor [only for fair use]
Hardy Cross essays (great essays!) and on Hardy Cross
CE571 - Earthquake Engineering website - M. Sozen, Purdue University
Acoustics and Vibrations animations - D. Russell, Kettering University
Vibrations website - B J Stone, The University of Western Australia
Matrices, matrix algebra, matrix identities (To refresh your memory; not all is relevant. Your matrix methods/linear algebra notes/textbook could be better.)

Software, Animations, Videos

E-Defense shaketable movies
Working Model 2D (you can get a 30-day evaluation version from the website; let me know if you try the software); check out these WM2D examples
Cymatics
Rayleigh's quotient examples (with updating)
BiSPEC (Linear and nonlinear spectra generator)
Phantom2 (Linear spectra generator)
Scilab (a free scientific software similar to Matlab)
Center for Engineering Strong Motion Data
COSMOS Virtual Earthquake Data Center
PEER Strong Ground Motion Database (by the Pacific Earthquake Research Center and UC Berkeley)
Fourier Series Applet (turn the sound on)
Digital Filter Applet (turn the sound on)
Differential Equation Applet (play!)
Walking animation (make sure you turn the "lines" option on)
Bowen Lab webcam (updated every minute)
E-Defense (largest shake-table in the World): see videos of tests
Videos: SDOF forced vibration demonstration (1); SDOF forced vibration demonstration (2)
Another Fourier Series Applet (one of many on the Internet) and yet another Fourier Series Applet
Collection of neat applets demonstrating principles of vibration, dynamics, wave mechanics, and more.
ODE Toolkit (Graphical Ordinary Differential Equation solver)
MyPhysicsLab -- Physics simulation with Java (highly interactive and interesting)

Question: Is an exact analysis of an approximate model an approximate analysis of the exact model?

"All analyses are based on some assumptions which are not quite in accordance with the facts. From this, however, it does not follow that the conclusions of the analysis are not very close to the facts." - H. Cross.

"As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.” - A.Einstein

Dragline: Why you got to go and say fifty eggs for? Why not thirty-five or thirty-nine?
Luke: I thought it was a nice round number.

[from Cool Hand Luke.]

"The secret of joy in work is contained in one word -- excellence. To know how to do something well is to enjoy it." - Pearl Buck, Pulitzer Prize-winning American writer

last update: 6 November 2009

exsisto civilis.