Results 31 to 40 of about 1,822,978 (208)
ARX residuals in damage detection
Structural Control and Health Monitoring, 2011 SUMMARY The relationship between residuals obtained from Autoregressive with Exogenous Input (ARX) predictors is examined from the perspective of resolution in damage detection. It is shown that residuals from all ARX structures are filtered versions of those obtained when only inputs are used to compute the predictions, i.e.
Bernal, Dionisio Prospero +2 more
openaire +1 more source
Evaluation of Rapeseed Winter Crop Damage Using UAV-Based Multispectral Imagery
Remote Sensing, 2020 This research is related to the exploitation of multispectral imagery from an unmanned aerial vehicle (UAV) in the assessment of damage to rapeseed after winter.
Łukasz Jełowicki +4 more
doaj +1 more source
Principal component analysis and perturbation theory–based robust damage detection of multifunctional aircraft structure [PDF]
, 2013 A fundamental problem in structural damage detection is to define an efficient feature to calculate a damage index. Furthermore, due to perturbations from various sources, we also need to define a rigorous threshold whose overtaking indicates the ...
HAJRYA, Rafik, MECHBAL, Nazih
core +5 more sources
Hangkong gongcheng jinzhan, 2019 Rotating beam structure is widely used in the aerospace engineering field. Its health status is directly related to the flight safety of the aircraft.
Han Wei, Mao Qibo, Tian Wenhao
doaj +1 more source
Sensors, 2020 The Savitzky–Golay filter (SGF) is a time-domain technique that determines a trend line for a signal. The direct application of SGF for damage localization and quantification is investigated in this paper.
Hadi Kordestani, Chunwei Zhang
doaj +1 more source
Damage monitoring in sandwich beams by modal parameter shifts: a comparative study of burst random and sine dwell vibration testing [PDF]
, 2010 This paper presents an experimental study on the effects of multi-site damage on the vibration response of honeycomb sandwich beams, damaged by two different ways i.e., impact damage and core-only damage simulating damage due to bird or stone impact or ...
Gourinat, Yves +2 more
core +3 more sources
A method for vibration-based structural interrogation and health monitoring based on signal cross-correlation [PDF]
, 2011 Vibration-based structural interrogation and health monitoring is a field which is concerned with the estimation of the current state of a structure or a component from its vibration response with regards to its ability to perform its intended function ...
Bendat JS +4 more
core +2 more sources
Self-Sensing Composites: In-Situ Detection of Fibre Fracture
Sensors, 2016 The primary load-bearing component in a composite material is the reinforcing fibres. This paper reports on a technique to study the fracture of individual reinforcing fibres or filaments in real-time.
Shoaib A. Malik +3 more
doaj +1 more source
Real time structural damage assessment from vibration measurements [PDF]
, 2011 Damage identification in civil engineering structures using vibration measurements has become an important area of research. A reliable and cost effective method is required to detect and quantify local damage in the structures. The objective of this new
Alani, A.M., Chen, H.-P., Maung, T.S.
core +1 more source
Significance of low energy impact damage on modal parameters of composite beams by design of experiments [PDF]
, 2009 This paper presents an experimental study on the effects of multi-site damage on the vibration response of composite beams damaged by low energy impacts around the barely visible impact damage limit (BVID).
A Shahdin +9 more
core +5 more sources