Arizona State University
CEE 536¡ªStructural Dynamics
Introduction
The Mechanics Project CP 2¡ªSDOF Dynamics
Computing Project 2
SDOF Dynamics
The computing projects in Structural Dynamics are designed to make use of homework problems already done, but to add to the mix exploration of the subject topic. The compu- ting project provides an opportunity to summarize the relevant theory, consolidate any rel- evant MATLAB codes, and to run those codes to get insight. The computing projects cul- minate in formal reports (where as the HW is just the calculation or code).
Computing Project 2 is based upon HW 2, 3, 5, 8, 9, and 10, which covered the analysis of the response of Single Degree-of-Freedom (SDOF) dynamic systems. These homework problems covered free and forced vibration, Fourier series for periodic loading, nonlinear response models (elastic and inelastic) and earthquake induced motion (including the com- putation of the earthquake response spectrum).
What you need to do
1. Construct a MATLAB program that will allow you to explore the behavior of a SDOF system with any of the features we have studied included as options. The code should use Newmark¡¯s method as the integrator. You might want to structure your code to call various options as MATLAB functions (but it is OK to have a single code).
2. Explore the dynamic response of SDOF systems using the code. Look for interesting features of response (e.g., resonance). Note that much of the early developments in earth- quake engineering were based on SDOF systems. Can you make a case for why this context was rich enough to make progress on this complicated topic?
3. Write a report documenting your work and the results (in accord with the specification given in the document Guidelines for Doing Computing Projects). Post it to the Critviz website prior to the deadline. Consult the document Evaluation of Computing Projects to see how your project will be evaluated to make sure that you can get full marks. All projects will be subject to the peer review process.
ý Keith D. Hjelmstad 1