Health Monitoring of Structures Using Few Frequency Response Measurements

Authors

1 Department of Civil Engineering,University of Tehran

2 Department of Civil Engineering,Khajeh Nasire Toosi University of Technology

3 Department of Civil Engineering,Sharif University of Technology

Abstract

The development of damage detection techniques for o shore jacket structures is vital for
preventing catastrophic events. This paper applies a frequency response based method for the purpose of
structural health monitoring. In this approach, the concept of a minimum rank perturbation theory is
used. The feasibility of using a nite number of sensors and its e ect on damage detection capabilities
is investigated. In addition, the performance of the proposed method is evaluated in the case of multiple
damages. The aforementioned points are illustrated using the numerical study of a two dimensional jacket
platform.

Keywords