Seismic Response Analysis on Non-Proportional Damped System by Using Perturbation Technique

Abstract:

A simple method for seismic response analysis on multi-degree-of-freedom (MDOF) system with non-proportional damping is proposed. Based on the real modal theory, transforming the system from physical coordinates to modal coordinates, the damping matrix is a relatively small amount compared with the mass matrix and the stiffness matrix, so the damping matrix may be denoted as a small amount. The approximate analytical solution of the non-proportional damped system can be obtained by using the perturbation technique which can be used as a reference of seismic response analysis of complicated structures.

• Periodical: Advanced Materials Research (Volumes 639-640)
• Pages: 917-921
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.639-640.917
• Online since: January 2013
• Authors: Jin Qi Qin
• Keywords: Approximate Solution, Non-Proportional Damped System, Perturbation Technique, Seismic Response

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