Paper Title:
Flexibility-Based Objective Functions for Constrained Optimization Problems on Structural Damage Detection
  Abstract

Based on concepts of structural modal flexibility and modal assurance criterion (MAC), a new objective function is defined and studied for constrained optimization problems (COP) on structural damage detection (SDD) in this paper. Compared with traditionally objective function, which is defined based on natural frequencies and MAC, effect of objective functions on robustness of SDD calculation is evaluated through numerical simulation of a 2-storey rigid frame. Structural damages are identified by solving the COP on SDD based on an improved particle swarm optimization (IPSO) algorithm. Weak and multiple damage scenarios are mainly considered in various noise conditions. Some illustrated results show that the newly defined objective function is better than the traditional ones. It can be used to identify the damage locations but also to quantify the severity of weak and multiple damages in measurement noise conditions.

  Info
Periodical
Edited by
Wenya Tian and Linli Xu
Pages
383-387
DOI
10.4028/www.scientific.net/AMR.186.383
Citation
X. Chen, L. Yu, "Flexibility-Based Objective Functions for Constrained Optimization Problems on Structural Damage Detection", Advanced Materials Research, Vol. 186, pp. 383-387, 2011
Online since
January 2011
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Fei Zheng, Jin Yu Xu, Yong Chen, De Hui Zhao
Abstract:Underground arch structure is an important structure form of civil air defense engineering, and its damage detection is an important link in...
2576
Authors: You Bao Jiang, Guo Yu Liao
Chapter 1: Vibration Engineering
Abstract:Modal parameters are widely adopted to identify structural damages. This paper explores the mode jumping problems in damage identification...
307
Authors: Feng Ge Li, Hong Yu
Chapter 2: Disaster Prevention and Reduction of Civil Engineering
Abstract:A new method to diagnose the damage of masonry structure using artificial network is brought forward. The frequencies and the ratio of change...
1148
Authors: M. O. Abdalla, E. Al-Khawaldeh
Chapter 23: Computer-Aided Design, Manufacturing, and Engineering
Abstract:An optimal damage detection sensor placement methodology is presented. The techniques utilize a Particle Swarm Optimization (PSO) algorithm....
5336