Application of Neural Networks for Detection of Changes in Nonlinear Systems
- 1 July 2000
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Engineering Mechanics
- Vol. 126 (7), 666-676
- https://doi.org/10.1061/(asce)0733-9399(2000)126:7(666)
Abstract
A nonparametric structural damage detection methodology based on nonlinear system identification approaches is presented for the health monitoring of structure-unknown systems. In its general form, the method requires no information about the topology or the nature of the physical system being monitored. The approach relies on the use of vibration measurements from a “healthy” system to train a neural network for identification purposes. Subsequently, the trained network is fed comparable vibration measurements from the same structure under different episodes of response in order to monitor the health of the structure and thereby provide a relatively sensitive indicator of changes (damage) in the underlying structure. For systems with certain topologies, the method can also furnish information about the region within which structural changes have occurred. The approach is applied to an intricate mechanical system that incorporates significant nonlinear behavior typically encountered in the applied mechani...Keywords
This publication has 10 references indexed in Scilit:
- Training Neural Networks by Adaptive Random Search TechniquesJournal of Engineering Mechanics, 1999
- Structural Control: Past, Present, and FutureJournal of Engineering Mechanics, 1997
- Neural Network Approach to Detection of Changes in Structural ParametersJournal of Engineering Mechanics, 1996
- High-order neural network structures for identification of dynamical systemsIEEE Transactions on Neural Networks, 1995
- Identification of Nonlinear Dynamic Systems Using Neural NetworksJournal of Applied Mechanics, 1993
- Safety Evaluation Based on Identification Approaches Related to Time-Variant and Nonlinear StructuresPublished by Springer Nature ,1993
- Pattern classification using neural networksIEEE Communications Magazine, 1989
- Structural Safety Evaluation Based on System Identification ApproachesPublished by Springer Nature ,1988
- An introduction to computing with neural netsIEEE ASSP Magazine, 1987
- A global optimization algorithm using adaptive random searchApplied Mathematics and Computation, 1980