Basic research of applying the guided wave to the foundation piles of offshore wind turbines
碩士 === 國立臺灣大學 === 工程科學及海洋工程學研究所 === 103 === As offshore wind turbines are located in the sea, column foundation piles under the surface of the seabed which are affected by vibration, ocean power (waves and currents), earthquakes and other external forces, might affect the firmness between the founda...
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ndltd-TW-103NTU053450562016-11-19T04:09:55Z http://ndltd.ncl.edu.tw/handle/14190137108004744699 Basic research of applying the guided wave to the foundation piles of offshore wind turbines 導波應用於離岸風機基樁之基礎研究 Yu-Ting Pan 潘郁婷 碩士 國立臺灣大學 工程科學及海洋工程學研究所 103 As offshore wind turbines are located in the sea, column foundation piles under the surface of the seabed which are affected by vibration, ocean power (waves and currents), earthquakes and other external forces, might affect the firmness between the foundation piles and the seabed. This will in turn affect the stability of the offshore wind turbine. Therefore, regular maintenance of the piles is very important. Since the guided wave method has long-range energy transmission and does not lose energy easily, when we use pipeline to transmit, the pipeline detection range would be greater. In this study, we will be using the ultrasonic transducer to make the guided wave method so as to assess the characteristics of the column on the surface. After which, we will start to plan, design and develop testing equipment and methods which are safe and effective in order to conduct regular assessments of the piles’ foundation. In this study, the foundation piles will be replaced by a single steel pipe as a model represent. PCdisp will be used to draw the dispersion curve to find the suitable mode and angle. After setting up the ultrasonic transducer and adjusting it to the best settings, we will explore the firmness between the foundation piles, the seabed and the corrosion of the surface. We will then be able to design a coated experiment to simulate the coated situation, and also an artificial corrosion experiment to simulate the corrosion. By applying the guided wave method, we will analyze and judge the structural condition of the surface so as to achieve the purpose of this study. Chia-Chi Sung 宋家驥 2015 學位論文 ; thesis 93 zh-TW |
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碩士 === 國立臺灣大學 === 工程科學及海洋工程學研究所 === 103 === As offshore wind turbines are located in the sea, column foundation piles under the surface of the seabed which are affected by vibration, ocean power (waves and currents), earthquakes and other external forces, might affect the firmness between the foundation piles and the seabed. This will in turn affect the stability of the offshore wind turbine. Therefore, regular maintenance of the piles is very important. Since the guided wave method has long-range energy transmission and does not lose energy easily, when we use pipeline to transmit, the pipeline detection range would be greater. In this study, we will be using the ultrasonic transducer to make the guided wave method so as to assess the characteristics of the column on the surface. After which, we will start to plan, design and develop testing equipment and methods which are safe and effective in order to conduct regular assessments of the piles’ foundation.
In this study, the foundation piles will be replaced by a single steel pipe as a model represent. PCdisp will be used to draw the dispersion curve to find the suitable mode and angle. After setting up the ultrasonic transducer and adjusting it to the best settings, we will explore the firmness between the foundation piles, the seabed and the corrosion of the surface. We will then be able to design a coated experiment to simulate the coated situation, and also an artificial corrosion experiment to simulate the corrosion. By applying the guided wave method, we will analyze and judge the structural condition of the surface so as to achieve the purpose of this study.
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author2 |
Chia-Chi Sung |
author_facet |
Chia-Chi Sung Yu-Ting Pan 潘郁婷 |
author |
Yu-Ting Pan 潘郁婷 |
spellingShingle |
Yu-Ting Pan 潘郁婷 Basic research of applying the guided wave to the foundation piles of offshore wind turbines |
author_sort |
Yu-Ting Pan |
title |
Basic research of applying the guided wave to the foundation piles of offshore wind turbines |
title_short |
Basic research of applying the guided wave to the foundation piles of offshore wind turbines |
title_full |
Basic research of applying the guided wave to the foundation piles of offshore wind turbines |
title_fullStr |
Basic research of applying the guided wave to the foundation piles of offshore wind turbines |
title_full_unstemmed |
Basic research of applying the guided wave to the foundation piles of offshore wind turbines |
title_sort |
basic research of applying the guided wave to the foundation piles of offshore wind turbines |
publishDate |
2015 |
url |
http://ndltd.ncl.edu.tw/handle/14190137108004744699 |
work_keys_str_mv |
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