A Crack Identification Approach for Beam-Like Structures under Moving Vehicle using Particle Swarm Optimization
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Hakan Gökdağ
Abstract
A crack identification method for beam type structures under moving vehicle is proposed. The basic of the method is to formulate damage detection as an inverse problem, and solve for damage locations and extents. With respect to this, an objective function is defined based on the difference of damaged beam dynamic response and the response calculated by the mathematical model of the beam. The optimization problem is solved by the particle swarm optimization (PSO) with linearly increasing inertia weight to obtain crack locations and their depths. By the numerical simulations, it was observed that cracks with depth ratio of 0.1 can be identified with reasonable error by the present method in spite of noise interference of 3 %.
Kurzfassung
Ein Verfahren zur Identifizierung von Rissen in balkenartigen Strukturen unter bewegten Fahrzeugen wird in dem vorliegenden Beitrag dargestellt. Die Basis dieses Verfahrens bildet die Formulierung der Rissdetektion als inverses Problem und dessen Lösung für die Schädigungsorte und -ausmaße. Diesbezüglich wurde eine objektive Funktion definiert, die auf der Differenz basiert, die sich zwischen der dynamischen Antwort des geschädigten Balkens und der Antwort ergibt, die mittels des mathematischen Balkenmodells berechnet wurde. Die Optimierungsaufgabe wurde mittels Particle Swarm Optimization (PSO) mit linear wachsendem Massenträgheitsmoment gelöst, um die entsprechenden Rissorte und deren Tiefe zu erhalten. Mittels der numerischen Simulationen wurde beobachtet, dass Risse mit einem Tiefenverhältnis von 0,1 mit diesem Verfahren innerhalb eines vernünftigen Fehlers identifiziert werden können, trotz einer Rauschinterferenz von 3 %.
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© 2013, Carl Hanser Verlag, München
Artikel in diesem Heft
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Upgrading of an Ultrasonic Fatigue Testing Machine by Means of Early Stage Damage Detection
- Assessment of Fracture Behaviour under Impact Loading with Simultaneous Recording of Acoustic Emission
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- Low Frequencies for Cardboard Quality Assurance
- A Crack Identification Approach for Beam-Like Structures under Moving Vehicle using Particle Swarm Optimization
- Assessment of the Residual Strength Thresholds of Composite Pressure Receptacles – Criteria for Hydraulic Load Cycle Testing
- Empirical Correlation for Viscoelastic and Viscoplastic Behaviour of Rock Surfaces under Different Normal Stress Conditions
- Electrolytic Recovery of Tin from Waste Lead Frames: Use of Aqueous HCl Leaching Solution as Electrolyte
- Study of p-6P Molecule Growth by In-Situ and Real-Time Spectroscopic Ellipsometry
- Vorschau/Preview
- Vorschau
- Kalender/Calendar
- Kalender
Artikel in diesem Heft
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Upgrading of an Ultrasonic Fatigue Testing Machine by Means of Early Stage Damage Detection
- Assessment of Fracture Behaviour under Impact Loading with Simultaneous Recording of Acoustic Emission
- Creep Behaviour of NearEquiatomic Nickel-Titanium Wires
- Ferroelektret-Prüfköpfe für die zerstörungsfreie Prüfung mit Luftultraschall
- A Study on Wear Testing of Orthopedic Implant Materials in Simulated Body Fluid
- Low Frequencies for Cardboard Quality Assurance
- A Crack Identification Approach for Beam-Like Structures under Moving Vehicle using Particle Swarm Optimization
- Assessment of the Residual Strength Thresholds of Composite Pressure Receptacles – Criteria for Hydraulic Load Cycle Testing
- Empirical Correlation for Viscoelastic and Viscoplastic Behaviour of Rock Surfaces under Different Normal Stress Conditions
- Electrolytic Recovery of Tin from Waste Lead Frames: Use of Aqueous HCl Leaching Solution as Electrolyte
- Study of p-6P Molecule Growth by In-Situ and Real-Time Spectroscopic Ellipsometry
- Vorschau/Preview
- Vorschau
- Kalender/Calendar
- Kalender