Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method
Computationally efficient simulation methods for wave energy converters (WECs) are useful in a variety of applications. The simulation task is particularly challenging when nonlinearities are present in the WEC model. Using a Fourier projection of the system inputs and variables, harmonic balance (H...
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ftunivmaynooth:oai:mural.maynoothuniversity.ie:13347 2023-05-15T14:26:21+02:00 Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method Novo, Riccardo Bracco, Giovanni Sirigu, Sergej A. Mattiazzo, Giuliana Mérigaud, Alexis Ringwood, John 2018 text https://mural.maynoothuniversity.ie/13347/ https://mural.maynoothuniversity.ie/13347/1/JR_electronic%20engineering_non-linear.pdf en eng ASME https://mural.maynoothuniversity.ie/13347/1/JR_electronic%20engineering_non-linear.pdf Novo, Riccardo and Bracco, Giovanni and Sirigu, Sergej A. and Mattiazzo, Giuliana and Mérigaud, Alexis and Ringwood, John (2018) Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method. In: ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. ASME. ISBN 9780791851319 Book Section PeerReviewed 2018 ftunivmaynooth 2022-06-13T18:47:52Z Computationally efficient simulation methods for wave energy converters (WECs) are useful in a variety of applications. The simulation task is particularly challenging when nonlinearities are present in the WEC model. Using a Fourier projection of the system inputs and variables, harmonic balance (HB) is a computationally-efficient method to solve for the steady-state motion of a non-linear system, preserving an accurate representation of the non-linear effects. In previous work, HB has been used for the simulation of WECs with one degree of freedom (DoF). Here, HB is presented for WEC systems with an arbitrary number of DoFs. A non-linear, 2-DoF model of the ISWEC wave energy device is used as an example of application. The HB implementation of the ISWEC model is described in detail. Through numerical applications, chosen in both regular and irregular waves, general features of the HB method are exemplified, in particular the exponential convergence rate to the actual mathematical solution, and the sensitivity, in some cases, to the starting point of the HB algoritm Book Part Arctic Maynooth University ePrints and eTheses Archive (National University of Ireland) |
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Open Polar |
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Maynooth University ePrints and eTheses Archive (National University of Ireland) |
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ftunivmaynooth |
language |
English |
description |
Computationally efficient simulation methods for wave energy converters (WECs) are useful in a variety of applications. The simulation task is particularly challenging when nonlinearities are present in the WEC model. Using a Fourier projection of the system inputs and variables, harmonic balance (HB) is a computationally-efficient method to solve for the steady-state motion of a non-linear system, preserving an accurate representation of the non-linear effects. In previous work, HB has been used for the simulation of WECs with one degree of freedom (DoF). Here, HB is presented for WEC systems with an arbitrary number of DoFs. A non-linear, 2-DoF model of the ISWEC wave energy device is used as an example of application. The HB implementation of the ISWEC model is described in detail. Through numerical applications, chosen in both regular and irregular waves, general features of the HB method are exemplified, in particular the exponential convergence rate to the actual mathematical solution, and the sensitivity, in some cases, to the starting point of the HB algoritm |
format |
Book Part |
author |
Novo, Riccardo Bracco, Giovanni Sirigu, Sergej A. Mattiazzo, Giuliana Mérigaud, Alexis Ringwood, John |
spellingShingle |
Novo, Riccardo Bracco, Giovanni Sirigu, Sergej A. Mattiazzo, Giuliana Mérigaud, Alexis Ringwood, John Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method |
author_facet |
Novo, Riccardo Bracco, Giovanni Sirigu, Sergej A. Mattiazzo, Giuliana Mérigaud, Alexis Ringwood, John |
author_sort |
Novo, Riccardo |
title |
Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method |
title_short |
Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method |
title_full |
Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method |
title_fullStr |
Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method |
title_full_unstemmed |
Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method |
title_sort |
non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method |
publisher |
ASME |
publishDate |
2018 |
url |
https://mural.maynoothuniversity.ie/13347/ https://mural.maynoothuniversity.ie/13347/1/JR_electronic%20engineering_non-linear.pdf |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://mural.maynoothuniversity.ie/13347/1/JR_electronic%20engineering_non-linear.pdf Novo, Riccardo and Bracco, Giovanni and Sirigu, Sergej A. and Mattiazzo, Giuliana and Mérigaud, Alexis and Ringwood, John (2018) Non-linear simulation of a wave energy converter with multiple degrees of freedom using a harmonic balance method. In: ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. ASME. ISBN 9780791851319 |
_version_ |
1766298884619894784 |