ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Modal Coupling Effect of Non-Classically Damping

by K. Xu, Northwestern Univ, United States,
T. Igusa, Northwestern Univ, United States,



Document Type: Proceeding Paper

Part of: Engineering Mechanics

Abstract:

The equations of motion of a structure in undamped modal coordinates may have non-zero off-diagonal terms in the damping matrix. Although these terms are commonly neglected, studies have shown that they may have significant influence on the response to dynamic loads. To quantify and understand the influence of these damping terms, closed form analytical expressions are examined for the modal properties and harmonic and stochastic response of structures with closely spaced natural frequencies.

Subject Headings: Dynamic loads | Damping | Dynamic structural analysis | Equations of motion | Stochastic processes | Dynamic response | Structural dynamics

Services: Buy this book/Buy this article

 

Return to search