Structural Identification and Damage Detection using Genetic Algorithms: Structures and Infrastructures Book Series, Vol. 6, 1st Edition (Hardback) book cover

Structural Identification and Damage Detection using Genetic Algorithms

Structures and Infrastructures Book Series, Vol. 6, 1st Edition

By Chan Ghee Koh, Michael J. Perry

CRC Press

140 pages

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Description

Rapid advances in computational methods and computer capabilities have led to a new generation of structural identification strategies. Robust and efficient methods have successfully been developed on the basis of genetic algorithms (GA). This volume presents the development of a novel GA-based identification strategy that contains several advantageous features compared to previous methods. Focusing on structural identification problems with limited and noise contaminated measurements; it provides insight into the effects of various identification parameters on the identification accuracy for systems with known mass. It then proposes a generalization for systems with unknown mass, stiffness and damping properties. The GA identification strategy is subsequently extended for structural damage detection. The findings of the output-only strategy and substructural identification represent a great leap forward from the practical point of view. This book is intended for researchers, engineers and graduate students in structural and mechanical engineering, particularly for those interested in model calibration, parameter estimation and damage detection of structural and mechanical systems using the state-of-the-art GA methodology.

Table of Contents

1. Introduction

  • 1.1 Modelling and Simulation of Dynamic Systems
  • 1.2 Structural Identification and Damage Detection
  • 1.3 Overview of Structural Identification Methods

2. A Primer to Genetic Algorithms

  • 2.1 Background to GA
  • 2.2 A Simple GA
  • 2.3 Theoretical Framework
  • 2.4 Advances in GAs
  • 2.5 Chapter Summary

3. An Improved GA Strategy

  • 3.1 SSRM
  • 3.2 iGAMAS
  • 3.3 Chapter Summary

4. Structural Identification by GA

  • 4.1 Applying GA to Structural Identification
  • 4.2 Identification of MDOF Systems Using SSRM
  • 4.3 Chapter Summary

5. Output-Only Structural Identification

  • 5.1 Modification of the Identification strategy
  • 5.2 Numerical Study
  • 5.3 Seismic Example
  • 5.4 Chapter Summary

6. Structural Damage Detection

  • 6.1 Damage Detection Strategy
  • 6.2 Verification of Strategy Using Simulated Data
  • 6.3 Chapter Summary

7. Experimental Verification Study

  • 7.1 Preliminary Calculations and Testing
  • 7.2 Main Identification Tests
  • 7.3 Experimental Identification Results
  • 7.4 Output-Only Identification
  • 7.5 Chapter Summary

8. Substructure Methods of Identification

  • 8.1 Substructural Identification
  • 8.2 Numerical Examples
  • 8.3 Chapter Summary

References, Appendix, Index

About the Series

Structures and Infrastructures

Book Series Editor: Prof. Dan M. Frangopol, Lehigh University, PA, USA

Our knowledge to model, analyze, design, maintain, manage and predict the life-cycle performance of structures and infrastructures is continually growing. However, the complexity of these systems continues to increase and an integrated approach is necessary to understand the effect of technological, environmental, economical, social and political interactions on the life-cycle performance of engineering structures and infrastructures. In order to accomplish this, methods have to be developed to systematically analyze structure and infrastructure systems, and models have to be formulated for evaluating and comparing the risks and benefits associated with various alternatives. We must maximize the life-cycle benefits of these systems to serve the needs of our society by selecting the best balance of the safety, economy and sustainability requirements despite imperfect information and knowledge.

In recognition of the need for such methods and models, the aim of this book series is to present research, developments, and applications written by experts on the most advanced technologies for analyzing, predicting and optimizing the performance of structures and infrastructures such as buildings, bridges, dams, underground construction, offshore platforms, pipelines, naval vessels, ocean structures, nuclear power plants, and also airplanes, aerospace and automotive structures.

The scope of this book series covers the entire spectrum of structures and infrastructures. Thus it includes, but is not restricted to, mathematical modeling, computer and experimental methods, practical applications in the areas of assessment and evaluation, construction and design for durability, decision making, deterioration modeling and aging, failure analysis, field testing, structural health monitoring, financial planning, inspection and diagnostics, life-cycle analysis and prediction, loads, maintenance strategies, management systems, nondestructive testing, optimization of maintenance and management, specifications and codes, structural safety and reliability, system analysis, time-dependent performance, rehabilitation, repair, replacement, reliability and risk management, service life prediction, strengthening and whole life costing.

This book series is intended researchers, practitioners, and students world-wide with a background in civil, aerospace, mechanical, marine and automotive engineering, as well as people working in infrastructure maintenance, monitoring, management and cost analysis of structures and infrastructures. Some volumes are monographs defining the current state of the art and/or practice in the field, and some are textbooks to be used in undergraduate (mostly seniors), graduate and postgraduate courses. This book series is affiliated to Structure and Infrastructure Engineering (Taylor & Francis, http://www.informaworld.com/sie ), an international peer-reviewed journal which is included in the Science Citation Index.
If you like to contribute to this series as an author or editor, please contact the Series Editor (dan.frangopol@lehigh.edu) or the Publisher (pub.nl@tandf.co.uk). A book proposal form can be downloaded at www.balkema.nl.

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Subject Categories

BISAC Subject Codes/Headings:
TEC005000
TECHNOLOGY & ENGINEERING / Construction / General
TEC009020
TECHNOLOGY & ENGINEERING / Civil / General
TEC063000
TECHNOLOGY & ENGINEERING / Structural