Structural Health Monitoring

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A uniform initialization Gaussian mixture model–based guided wave–hidden Markov model with stable damage evaluation performance
Structural Health Monitoring - Tập 18 Số 3 - Trang 853-868 - 2019
Shenfang Yuan, Jinjin Zhang, Jian Chen, Lei Qiu, Weibo Yang
During practical applications, the time-varying service conditions usually lead to difficulties in properly interpreting structural health monitoring signals. The guided wave–hidden Markov model–based damage evaluation method is a promising approach to address the uncertainties caused by the time-varying service condition. However, researches that have been performed to date are not compr...... hiện toàn bộ
Wavelet Transform for Structural Health Monitoring: A Compendium of Uses and Features
Structural Health Monitoring - Tập 5 Số 3 - Trang 267-295 - 2006
Mahmoud Reda Taha, Aboelmagd Noureldin, Jonathan L. Lucero, Thomas J. Baca
The strategic and monetary value of the civil infrastructure worldwide necessitates the development of structural health monitoring (SHM) systems that can accurately monitor structural response due to real-time loading conditions, detect damage in the structure, and report the location and nature of this damage. In the last decade, extensive research has been carried out for developing vi...... hiện toàn bộ
Wavelet domain principal feature analysis for spindle health diagnosis
Structural Health Monitoring - Tập 10 Số 6 - Trang 631-642 - 2011
Ruqiang Yan, Robert X. Gao
This article introduces a hybrid signal processing technique for spindle health monitoring and diagnosis, through the integration of wavelet packet transform and principal feature analysis. Vibration signals measured from a spindle test system with different defect conditions are first decomposed into multiple sub-frequency bands by means of the wavelet packet transform. Statistical param...... hiện toàn bộ
The use of electromechanical impedance conductance signatures for detection of weak adhesive bonds of carbon fibre–reinforced polymer
Structural Health Monitoring - Tập 14 Số 4 - Trang 332-344 - 2015
Paweł Malinowski, Tomasz Wandowski, Wiesław Ostachowicz
The joints between structural elements should ensure safe usage of the structure. One of the joining method is based on adhesive bonding. However, adhesive bonding has not replaced riveting yet. Rivets are still present even in newest composite aircraft AIRBUS 350. The reliability of the adhesive bonding limits the use of adhesive bonding for primary aircraft structures and there is a sea...... hiện toàn bộ
Vibration Based Diagnosis of a Centrifugal Pump
Structural Health Monitoring - Tập 5 Số 4 - Trang 325-332 - 2006
Jyoti K. Sinha, A. Rama Rao
The centrifugal pump has a long history of frequent failure of anti-friction bearing since its commissioning in 1985. Vibration based conventional condition monitoring has regularly been used to identify the progressive nature of the bearing failure, but has failed to identify the root cause. Modal tests have been conducted on the pump assembly to understand the dynamics of the complete a...... hiện toàn bộ
Real-time distortion monitoring during fused deposition modeling via acoustic emission
Structural Health Monitoring - Tập 19 Số 2 - Trang 412-423 - 2020
Feng Li, Zhonghua Yu, Zhensheng Yang, Xuanwei Shen
Fused deposition modeling is a popular technique for three-dimensional prototyping since it is cost-effective, convenient to operate, and environment-friendly. However, the low quality of its printed products jeopardizes its future development. Distortion, also known as warping deformation, which is caused by many factors such as inappropriate process parameters and process drifts, is one...... hiện toàn bộ
Distribution adaptation deep transfer learning method for cross-structure health monitoring using guided waves
Structural Health Monitoring - Tập 21 Số 3 - Trang 853-871 - 2022
Bin Zhang, Xiaobin Hong, Yuan Liu
Deep learning algorithm can effectively obtain damage information using labeled samples, and has become a promising feature extraction tool for ultrasonic guided wave detection. But it is difficult to apply the monitoring expertise of structure A to structure B in most cases due to the differences in the dispersion and receiving modes of different waveguides. For multi-structure monitorin...... hiện toàn bộ
Output-only structural health monitoring in changing environmental conditions by means of nonlinear system identification
Structural Health Monitoring - Tập 13 Số 1 - Trang 82-93 - 2014
Edwin Reynders, Gersom Wursten, Guido De Roeck
Structural health monitoring relies on the repeated observation of damage-sensitive features such as strains or natural frequencies. A major problem is that regular changes in temperature, relative humidity, operational loading, and so on also influence those features. This influence is in general nonlinear and it affects different features in a different way. In this article, an improved...... hiện toàn bộ
Active vibration-based structural health monitoring system for wind turbine blade: Demonstration on an operating Vestas V27 wind turbine
Structural Health Monitoring - Tập 16 Số 5 - Trang 536-550 - 2017
Dmitri Tcherniak, Louise Mølgaard
Structural health monitoring of offshore wind turbines using automated operational modal analysis
Structural Health Monitoring - Tập 13 Số 6 - Trang 644-659 - 2014
Christof Devriendt, Filipe Magalhães, Wout Weijtjens, Gert De Sitter, Álvaro Cunha, Patrick Guillaume
This article will present and discuss the approach and the first results of a long-term dynamic monitoring campaign on an offshore wind turbine in the Belgian North Sea. It focuses on the vibration levels and modal parameters of the fundamental modes of the support structure. These parameters are crucial to minimize the operation and maintenance costs and to extend the lifetime of offshor...... hiện toàn bộ
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