Energy cannot be created or destroyed, but energy can be converted from one form to another. By design, an engineer creates an energy conversion system to change an input energy form into a desired.
NCBI's Gene Expression Omnibus (GEO) is a public archive and resource for gene expression data. WM2D Forward Dynamics Examples. WMVan example; WMVan example 2; ForwardDynamics Car; IV Review of Three Dimensional Dynamics. Review3D Kinematicsnotes.pdf. Exercise 1 3D Mechanism.pdf; Exercise 2.pdf; Prob15204.pdf; Prob15228.pdf Prob15233.pdf V. Introduction to NASTRAN4D. Nastra4DTutorial Trainiing.pdf; IntroductionNastran4d3D.
CE573Structural Dynamics
Welcome to the CE573 Fall'16 website
CONTACT INFORMATION
Instructor: Ayhan Irfanoglu
ayhan@purdue.edu; HAMP 4117; Ph: (765) 49-68270
Office hours: MW 1:00-3:00pm
Course Info
Class schedule:
Exam schedule:
Homeworks
Distribution of homework problems or solutions is against the course honor code.
Supporting Documents
- Paper on stability of numerical methods - Nickell [only for fair use]
- Collocation, dissipation, and overshoot for time integration schemes in structural dynamics - Hilber and Hughes [only for fair use]
- A method of computation for structural dynamics - N.M. Newmark [only for fair use]
- On dimensional analysis and scaling laws:
- Response of MDOF buildings to earthquake ground motion (class presentation)
- Fourier Series lectures (lectures #15 and #16 on iTunes website; corresponding lecture sites are available on MIT OCW and MIT OCW02, respectively)
- Video links: E-Defense shaketable movies and information on the World's largest shaketable.
- An investigation into the theory of resonance testing -- Bishop and Gladwell [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]
- Transient oscillations in elastic systems. General theorems. Vibrations of buildings during earthquake. Critical torsional vibrations of accelerated rotating shafts - M. Biot (1932) (Thesis)
- An investigation of the effects of earthquakes on buildings - G.W. Housner (1941)(Thesis)
- Biot response spectrum - M. Trifunac (2006) [only for fair use]
- A Study of Vertical and Horizontal Earthquake Spectra[only for fair use]
- Seismic Design Spectra for Nuclear Power Plants - N.M. Newmark, J.A. Blume, and K.K. Kapur [only for fair use]
- Review of the Development of the Capacity Spectrum Method - S.A. Freeman [only for fair use]
Other Documents, Websites
- Lectures on linear algebra by Dr. Gilbert Strang
- Lagrange's method lecture notes by Dr. Charalampos Skokos
- Rayleigh's quotient examples; iterated using Newmark's method [caveat emptor! cell values may not be automated]
Working Model files demonstrating response spectra concepts (file 1: different periods, same damping ratio and file 2: same period, different damping ratios)
- 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
- Doctoral thesis on the 3-story Bowen Lab flat-plate structure, by Damon Fick
- Working Model 2D (you can get an 8-day evaluation version from the website; let me know if you try the software); check out these WM2D examples
- BiSPEC (Linear and nonlinear spectra generator)
- Phantom2 (Linear spectra generator) (LOCAL COPY on CE573 website)
- PRISM (linear/nonlinear SDOF earthquake response analysis and response spectra generation software)
- Scilab (a free scientific software similar to Matlab)
- SMath (a free software similar to Mathcad)
- 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 on the 'lines' option)
- Bowen Lab webcam (updated every minute)
- 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
![Wm2d Wm2d](https://www.file-extensions.org/imgs/app-picture/5614/working-model.gif)
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]
Design Challenge.wm2d
'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
![Wm2d Wm2d](https://d1w82f5xc78wju.cloudfront.net/uploads/targetware/image/file/13831/working-model-2d.master.png)
'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]
Design Challenge.wm2d
'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
'One pound of learning requires ten pounds of common sense to apply it.' - Persian proverb
last update: 15 December 2016
be civil