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Introduction to Dynamics of Structures

By Shirley Dyke

Purdue University

Published on

Abstract

The purpose of this experiment is to introduce students to principles in structural dynamics through the use of an instructional shake table. Natural frequencies, mode shapes and damping ratios for a small scale structure will be obtained experimentally through a series of tests. In the first test a sine sweep is applied to the structure to determine the frequency response function of the structure. The frequencies are identified, and a sinusoidal excitation is applied to examine the mode shapes. Next the damping in the system is estimated using two techniques and the results are compared. Students will use a Matlab GUI program to obtain experimental data of the structure and analyze the data.

Cite this work

Researchers should cite this work as follows:

  • Shirley Dyke (2011), "Introduction to Dynamics of Structures," http://nees.org/resources/894.

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