Prediction of Dynamic Responses of Flow-Induced Vibration Using Deep Learning

Flow-induced vibration (FIV) is a phenomenon in which the flow passing through a structure exerts periodic forces on the structure. Most studies on FIVs focus on suppressing this phenomenon. However, the Marine Renewable Energy Laboratory (MRELab) at the University of Michigan, USA, has developed a...

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Main Authors: Gi-yong Kim, Chaeog Lim, Eun Soo Kim, Sung-chul Shin
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/15/7163
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author Gi-yong Kim
Chaeog Lim
Eun Soo Kim
Sung-chul Shin
author_facet Gi-yong Kim
Chaeog Lim
Eun Soo Kim
Sung-chul Shin
author_sort Gi-yong Kim
collection DOAJ
description Flow-induced vibration (FIV) is a phenomenon in which the flow passing through a structure exerts periodic forces on the structure. Most studies on FIVs focus on suppressing this phenomenon. However, the Marine Renewable Energy Laboratory (MRELab) at the University of Michigan, USA, has developed a technology called the vortex-induced vibration for aquatic clean energy (VIVACE) converters that reinforces FIV and converts the energy in tidal currents to electrical energy. This study introduces the experimental data of the VIVACE converter and the associated method using deep neural networks (DNNs) to predict the dynamic responses of the converter. The DNN was trained and verified with experimental data from the MRELab, and the findings show that the amplitudes and frequencies of a single cylinder in the FIV predicted by the DNN under various test conditions were in good agreement with the experimental data. Finally, based on both the predicted and experimental data, the optimal power envelope of the VIVACE converter was generated as a function of the flow speed. The predictions using DNNs are expected to be more accurate as they can be trained with more experimental data in the future and will help to substantially reduce the number of experiments on FIVs.
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spelling doaj.art-a3128b0190ac45a3918b9ba444cf66c62023-11-22T05:25:22ZengMDPI AGApplied Sciences2076-34172021-08-011115716310.3390/app11157163Prediction of Dynamic Responses of Flow-Induced Vibration Using Deep LearningGi-yong Kim0Chaeog Lim1Eun Soo Kim2Sung-chul Shin3Department of Naval Architecture and Ocean Engineering, Pusan National University, Busan 46241, KoreaDepartment of Naval Architecture and Ocean Engineering, Pusan National University, Busan 46241, KoreaDepartment of Naval Architecture and Ocean Engineering, Pusan National University, Busan 46241, KoreaDepartment of Naval Architecture and Ocean Engineering, Pusan National University, Busan 46241, KoreaFlow-induced vibration (FIV) is a phenomenon in which the flow passing through a structure exerts periodic forces on the structure. Most studies on FIVs focus on suppressing this phenomenon. However, the Marine Renewable Energy Laboratory (MRELab) at the University of Michigan, USA, has developed a technology called the vortex-induced vibration for aquatic clean energy (VIVACE) converters that reinforces FIV and converts the energy in tidal currents to electrical energy. This study introduces the experimental data of the VIVACE converter and the associated method using deep neural networks (DNNs) to predict the dynamic responses of the converter. The DNN was trained and verified with experimental data from the MRELab, and the findings show that the amplitudes and frequencies of a single cylinder in the FIV predicted by the DNN under various test conditions were in good agreement with the experimental data. Finally, based on both the predicted and experimental data, the optimal power envelope of the VIVACE converter was generated as a function of the flow speed. The predictions using DNNs are expected to be more accurate as they can be trained with more experimental data in the future and will help to substantially reduce the number of experiments on FIVs.https://www.mdpi.com/2076-3417/11/15/7163deep learningflow-induced vibration (FIV)renewable energydynamic response
spellingShingle Gi-yong Kim
Chaeog Lim
Eun Soo Kim
Sung-chul Shin
Prediction of Dynamic Responses of Flow-Induced Vibration Using Deep Learning
Applied Sciences
deep learning
flow-induced vibration (FIV)
renewable energy
dynamic response
title Prediction of Dynamic Responses of Flow-Induced Vibration Using Deep Learning
title_full Prediction of Dynamic Responses of Flow-Induced Vibration Using Deep Learning
title_fullStr Prediction of Dynamic Responses of Flow-Induced Vibration Using Deep Learning
title_full_unstemmed Prediction of Dynamic Responses of Flow-Induced Vibration Using Deep Learning
title_short Prediction of Dynamic Responses of Flow-Induced Vibration Using Deep Learning
title_sort prediction of dynamic responses of flow induced vibration using deep learning
topic deep learning
flow-induced vibration (FIV)
renewable energy
dynamic response
url https://www.mdpi.com/2076-3417/11/15/7163
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