Results 291 to 300 of about 8,161,887 (352)

Wavelet-Based Structural Damage Detection

Volume 1: 21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 2007
In this paper, a new wavelet-based approach for crack identification in beam-like structures is presented and applied to simply-supported beams with single or multiple cracks. A novel damage index, based on finding the difference between two sets of detail coefficients obtained by the use of the Stationary Wavelet Transform (SWT) of two reconstructed ...
Zhong, S, Oyadiji, S Olutunde
openaire   +2 more sources

Review of Bridge Structural Health Monitoring Aided by Big Data and Artificial Intelligence: From Condition Assessment to Damage Detection

, 2020
Structural health monitoring (SHM) techniques have been widely used in long-span bridges.
Limin Sun, Zhiqiang Shang, Ye Xia, Sutanu Bhowmick, Satish Nagarajaiah   +4 more
semanticscholar   +1 more source

Damage Detection in Flexible Structures

Journal of Sound and Vibration, 1993
Abstract A method is developed for the detection of the existence and location of structural damage. Structural damage is considered to be at the macroscopic level. The detection is carried out in two parts. In the first part, the eigensolution of the structure is identified using a modal parameter identification technique and the system response ...
Baruh, H., Ratan, S.
openaire   +2 more sources

Fatigue Damage Detection

1971
Relationships between the characterization and the nondestructive detection of fatigue damage are discussed and illustrated. Inspection methods presently used at overhaul facilities are reviewed, and examples of the equipment used and the results obtained are given. The advantages and limitations of currently used nondestructive methods are summarized.
JR Barton, FN Kusenberger
openaire   +1 more source

Damage detection with auxiliary subsystems [PDF]

, 2008
The small sensitivity to local variations of mechanical characteristics turns out to be the major limit of indirect identification techniques based on frequency response measurements. To overcome this limit, the use of sensitivity enhancement techniques has recently proposed: the monitored structure is coupled to an auxiliary system, the constitutive ...
VESTRONI, Fabrizio, VIDOLI, Stefano
openaire   +1 more source

Structural Damage Detection Using Local Damage Factor

Journal of Vibration and Control, 2006
Damage in a structure alters its dynamic characteristics. Significant research has been conducted in damage detection and structural health monitoring using dynamics-based techniques. But simultaneously determining the presence, severity, and location of damage using the existing damage detection methods can still prove challenging.
Shanshan Wang, Qingwen Ren, Pizhong Qiao
openaire   +1 more source

Combined damage detection techniques

Journal of Sound and Vibration, 2003
Abstract Linear damage detection techniques are used frequently because of their simplicity and their easy interpretation. In this paper, it will be shown however that linear techniques are not very robust with respect to environmental changes and interstructure variability. With the aid of experimental results it will be demonstrated that non-linear
Guillaume, Patrick, Parloo, Eli, Vanlanduit, Steve   +2 more
openaire   +2 more sources

Vibration-based damage detection for bridges by deep convolutional denoising autoencoder

Structural Health Monitoring, 2020
One of the main challenges for structural damage detection using monitoring data is to acquire features that are sensitive to damages but insensitive to noise (e.g.
Zhiqiang Shang, Limin Sun, Ye Xia, Wei Zhang   +3 more
semanticscholar   +1 more source

Structural damage detection and localization using decision tree ensemble and vibration data

Comput. Aided Civ. Infrastructure Eng., 2020
This paper explores the capabilities of decision tree ensembles (DTEs) for detecting and localizing damage in structural health monitoring (SHM).
G. Mariniello, Tommaso Pastore, C. Menna, P. Festa, D. Asprone   +4 more
semanticscholar   +1 more source

SOYBEAN MECHANICAL DAMAGE DETECTION

Applied Engineering in Agriculture, 2000
The sodium hypochlorite and indoxyl acetate tests were compared as methods for quantifying the mechanical damage of soybeans. These methods were selected from six described in the literature. Soybeans at 7 and 21% moisture content were damaged in a Stein Breakage Tester and the remaining whole soybeans were subjected to the two tests.
VanUtrecht, David, Bern, Carl, Rukunudin, Ibni   +2 more
openaire   +2 more sources