An application of Structural Health Monitoring system based on FBG sensors to offshore wind turbine support structure model

Mieloszyk, Magdalena; Ostachowicz, Wiesław

doi:10.1016/j.marstruc.2016.10.006

Cited by 98 publications

(50 citation statements)

References 27 publications

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“…Then, an SHM system based on FBG sensors dedicated to an OWT model supported by a tripod foundation was presented. It has a good development potential in detecting and localizing the damage based on four damage indexes due to the better accuracy and can be used for OWTs with tripod foundations [65]. The Offshore Wind Infrastructure Lab (OWI-lab) has constructed an SHM system using excitation, acceleration, and displacement sensors to perform monopole foundation monitoring in the Belwind offshore wind farm.…”

Section: Health Monitoring System Of the Tower And Foundationmentioning

confidence: 99%

Health Monitoring and Safety Evaluation of the Offshore Wind Turbine Structure: A Review and Discussion of Future Development

et al. 2019

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With the depletion of fossil energy, offshore wind power has become an irreplaceable energy source for most countries in the world. In recent years, offshore wind power generation has presented the gradual development trend of larger capacity, taller towers, and longer blades. The more flexible towers and blades have led to the structural operational safety of the offshore wind turbine (OWT) receiving increasing worldwide attention. From this perspective, health monitoring systems and operational safety evaluation techniques of the offshore wind turbine structure, including the monitoring system category, data acquisition and transmission, feature information extraction and identification, safety evaluation and reliability analysis, and the intelligent operation and maintenance, were systematically investigated and summarized in this paper. Furthermore, a review of the current status, advantages, disadvantages, and the future development trend of existing systems and techniques was also carried out. Particularly, the offshore wind power industry will continue to develop into deep ocean areas in the next 30 years in China. Practical and reliable health monitoring systems and safety evaluation techniques are increasingly critical for offshore wind farms. Simultaneously, they have great significance for strengthening operation management, making efficient decisions, and reducing failure risks, and are also the key link in ensuring safe energy compositions and achieving energy development targets in China. The aims of this article are to inform more scholars and experts about the status of the health monitoring and safety evaluation of the offshore wind turbine structure, and to contribute toward improving the efficiency of the corresponding systems and techniques.

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Section: Health Monitoring System Of the Tower And Foundationmentioning

confidence: 99%

Health Monitoring and Safety Evaluation of the Offshore Wind Turbine Structure: A Review and Discussion of Future Development

et al. 2019

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“…Compared with strain gauges, FBG sensors have a higher immunity to electrical noise, do not require external excitation, and are highly resistant to corrosion [24]. This makes them ideal for situations involving submersion in water, such as in a paper by Mieloszyk and Ostachowicz [25] in which a water basin and a wave machine were used to simulate an environmental load, and FBG was able to detect the appearance of circumferential cracks on a wind turbine support structure. WT blades, however, are clearly not subject to such great corrosive and environmental pressures.…”

Section: Strainmentioning

confidence: 99%

Real-Time Monitoring of Wind Turbine Blade Alignment Using Laser Displacement and Strain Measurement

Ovenden

Wang

Huang

et al. 2019

Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems

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Wind turbine (WT) blade structural health monitoring (SHM) is important as it allows damage or misalignment to be detected before it causes catastrophic damage such as that caused by the blade striking the tower. Both of these can be very costly and justify the expense of monitoring. This paper aims to deduce whether a SICK DT-50 laser displacement sensor (LDS) installed inside the tower and a half-bridge type II strain gauge bridge installed at the blade root are capable of detecting ice loading, misalignment, and bolt loosening while the WT is running. Blade faults were detected by the virtual instrument, which conducted a z-test at 99% and 98% significance levels for the LDS and at 99.5% and 99% significance levels for the strain gauge. The significance levels chosen correspond to typical Z-values for statistical tests. A higher significance was used for the strain gauge as it used a one-tail test as opposed to a two-tail test for the LDS. The two different tests were used to test for different sensitivities of the tests. The results show that the strain gauge was capable of detecting all the mass loading cases to 99.5% significance, and the LDS was capable of detecting misalignment, bolt loosening, and 3 out of 4 mass loading cases to 99% significance. It was able to detect the least severe mass loading case of 11 g at the root to only a 98% significance.

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“…What is noteworthy is huge technological progress in the field of numerical simulations, supported by experimental tests [24][25][26][27][28][29][30][31][32][33][34][35][36][37]. Visible progress is also observed in technologies of structure production [38][39][40] and structure operation monitoring [41][42][43][44][45]. All these factors affect considerably the dynamics of offshore wind power industry sector development.…”

Section: Fig 2 Average Water Region Depth and Distance From The Seamentioning

confidence: 99%

Strength Analysis of a Large-Size Supporting Structure for an Offshore Wind Turbine

Niklas

2017

Polish Maritime Research

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An application of Structural Health Monitoring system based on FBG sensors to offshore wind turbine support structure model

Cited by 98 publications

References 27 publications

Health Monitoring and Safety Evaluation of the Offshore Wind Turbine Structure: A Review and Discussion of Future Development

Health Monitoring and Safety Evaluation of the Offshore Wind Turbine Structure: A Review and Discussion of Future Development

Real-Time Monitoring of Wind Turbine Blade Alignment Using Laser Displacement and Strain Measurement

Strength Analysis of a Large-Size Supporting Structure for an Offshore Wind Turbine

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