Results 171 to 180 of about 7,408,303 (251)

Damage identification in steel girder bridges using modal strain energy-based damage index method and artificial neural network

, 2021
Health monitoring of infrastructures is of utmost significance, as they play a vital role in transportation. Identifying damages at the onset is essential to ensure the structure’s health state.
H. Nick, A. Aziminejad, Mir Hamid Hosseini, Karim Laknejadi   +3 more
semanticscholar   +1 more source

A powerful Lichtenberg Optimization Algorithm: A damage identification case study

Engineering applications of artificial intelligence, 2021
Optimization is an essential tool to minimize or maximize functions, obtaining optimal results on costs, mass, energy, gains, among others. Actual problems may be multimodal, nonlinear, and discontinuous and may not be minimized by classical analytical ...
J. L. J. Pereira, M. Francisco, S. Cunha, G. Gomes   +3 more
semanticscholar   +1 more source

Damage identification of wind turbine blades with deep convolutional neural networks

Renewable Energy, 2021
Online early detection of surface damages on blades is critical for the safety of wind turbines, which could avoid catastrophic failures, minimize downtime, and enhance the reliability of the system.
Jihong Guo, Chao Liu, Jinfeng Cao, D. Jiang   +3 more
semanticscholar   +1 more source

Structural damage identification under nonstationary excitations through recurrence plot and multi-label convolutional neural network

Measurement, 2021
Civil engineering structures inevitably suffer from nonstationary ambient excitations in practice, which make conventional damage identification methods relying on the stationary assumption ineffective.
Dan Li, Zhen-Long Liang, W. Ren, D. Yang, Shi-Dong Wang, Shu-Lin Xiang   +5 more
semanticscholar   +1 more source

Structural Dynamic Identification and Damage Detection

2022
Dynamic methods are a powerful tool for studying the behaviour of existing structures and their health conditions. The practical application, however, often raises subtle questions related to the accuracy and completeness of experimental data, the complexity of the mechanical modelling and, ultimately, the inverse nature of the problems that leads to ...
Vestroni F., Morassi A.
openaire   +2 more sources

MuDI: A Multilevel Damage Identification Platform

Civil-Comp Proceedings, 2014
This paper present the ideas and methods that are behind the development of a multilevel damage identification platform (MuDI). The need to develop the platform is a consequence of the collaboration of some of the authors with the Italian Department of Civil Protection, that has a large project named Seismic Observatory of Structures, in which more ...
Acunzo G., Gabriele S., Spina D., VALENTE, Claudio   +3 more
openaire   +1 more source

Bolt damage identification based on orientation-aware center point estimation network

Structural Health Monitoring, 2021
With the development of deep learning, object detection algorithms based on horizontal box are widely used in the field of damage identification. However, damages can be in any direction and position, and they are not necessarily horizontal or vertical ...
Yang Zhang, K. Yuen
semanticscholar   +1 more source

A Damage Identification Procedure for Steel Truss

2020
This paper addresses the problem of identifying structural damage affecting one element of a steel truss. The purpose is to detect damages in relation to their magnitude, location and extension. A planar model of a damaged steel truss is used to illustrate the procedure. The direct problem is addressed by FEM, proposing the local stiffness of a damaged
Crognale M., Gattulli V., Paolone A., Potenza F.   +3 more
openaire   +2 more sources

Vibration–based structural damage identification

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2001
Many aerospace, civil and mechanical systems continue to be used despite ageing and the associated potential for damage accumulation.
Farrar, Charles R., Doebling, Scott W., Nix, David A.   +2 more
openaire   +2 more sources

Structural damage identification - A probabilistic approach

AIAA Journal, 1998
A method is presented to improve the robustness of current damage detection methodologies. Measured statistical changes in natural frequencies and mode shapes along with a correlated analytical stochastic finite element model are used to assess the integrity of a structure.
Loukas Papadopoulos, Ephrahim Garcia
openaire   +1 more source