Asymmetry in sagging and hogging responses of a ship hull

Jerzy Matusiak; Aaro Karola; Ari Niemelä; Tommi Mikkola; Spyros Hirdaris

doi:10.1088/1757-899X/1288/1/012022

Asymmetry in sagging and hogging responses of a ship hull

Jerzy Matusiak, Aaro Karola, Ari Niemelä, Tommi Mikkola, Spyros Hirdaris

Meyer Turku Oy

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference article in proceedings › Scientific › vertaisarvioitu

61 Lataukset (Pure)

Abstrakti

In this paper asymmetry in sagging and hogging of a hull progressing in regular waves is investigated by applying a weakly nonlinear potential flow theory. At first instance ship motions in waves are evaluated using a linear strip-theory yielding transfer functions of ship motions and sectional loads. Then, by assuming time-histories of ship motions the nonlinear part of the Froude-Krylov and restoring forces and moments are evaluated using a panel representation. Linear and weakly nonlinear predictions are compared against available model
tests for a roll-on/off (Ro-Pax) ship hull. The results confirm that importance of nonlinearities of restoring and Froude-Krylov part of wave loading on asymmetry of sagging and hogging.

Alkuperäiskieli	Englanti
Otsikko	Proceedings of the 12th International Workshopon Ship and Marine Hydrodynamics
Toimittajat	Spyros Hirdaris, Decheng Wan
Kustantaja	Institute of Physics Publishing
Sivumäärä	9
DOI - pysyväislinkit	https://doi.org/10.1088/1757-899X/1288/1/012022
Tila	Julkaistu - 9 elok. 2023
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa
Tapahtuma	International Workshop on Ship and Marine Hydrodynamics - Aalto University, Espoo, Suomi Kesto: 28 elok. 2023 → 1 syysk. 2023 Konferenssinumero: 12

Julkaisusarja

Nimi	IOP Conference Series: Materials Science and Engineering
Kustantaja	Institute of Physics
Vuosikerta	1288
ISSN (elektroninen)	1757-899X

Workshop

Workshop	International Workshop on Ship and Marine Hydrodynamics
Lyhennettä	IWSH
Maa/Alue	Suomi
Kaupunki	Espoo
Ajanjakso	28/08/2023 → 01/09/2023

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10.1088/1757-899X/1288/1/012022Lisenssi: CC BY

Matusiak_2023_IOP_Conf._Ser. _Mater._Sci._Eng._1288_012022Final published version, 1,45 MBLisenssi: CC BY

Siteeraa tätä

Matusiak, J., Karola, A., Niemelä, A., Mikkola, T., & Hirdaris, S. (2023). Asymmetry in sagging and hogging responses of a ship hull. teoksessa S. Hirdaris, & D. Wan (Toimittajat), Proceedings of the 12th International Workshopon Ship and Marine Hydrodynamics Artikkeli 012022 (IOP Conference Series: Materials Science and Engineering; Vuosikerta 1288). Institute of Physics Publishing. https://doi.org/10.1088/1757-899X/1288/1/012022

@inproceedings{12f8e4bfd12543539405e8ef809c831d,

title = "Asymmetry in sagging and hogging responses of a ship hull",

abstract = "In this paper asymmetry in sagging and hogging of a hull progressing in regular waves is investigated by applying a weakly nonlinear potential flow theory. At first instance ship motions in waves are evaluated using a linear strip-theory yielding transfer functions of ship motions and sectional loads. Then, by assuming time-histories of ship motions the nonlinear part of the Froude-Krylov and restoring forces and moments are evaluated using a panel representation. Linear and weakly nonlinear predictions are compared against available model tests for a roll-on/off (Ro-Pax) ship hull. The results confirm that importance of nonlinearities of restoring and Froude-Krylov part of wave loading on asymmetry of sagging and hogging. ",

author = "Jerzy Matusiak and Aaro Karola and Ari Niemel{\"a} and Tommi Mikkola and Spyros Hirdaris",

year = "2023",

month = aug,

day = "9",

doi = "10.1088/1757-899X/1288/1/012022",

language = "English",

series = "IOP Conference Series: Materials Science and Engineering",

publisher = "Institute of Physics Publishing",

editor = "Spyros Hirdaris and Decheng Wan",

booktitle = "Proceedings of the 12th International Workshopon Ship and Marine Hydrodynamics",

address = "United Kingdom",

note = "International Workshop on Ship and Marine Hydrodynamics, IWSH ; Conference date: 28-08-2023 Through 01-09-2023",

}

Matusiak, J , Karola, A, Niemelä, A, Mikkola, T & Hirdaris, S 2023, Asymmetry in sagging and hogging responses of a ship hull. julkaisussa S Hirdaris & D Wan (toim), Proceedings of the 12th International Workshopon Ship and Marine Hydrodynamics., 012022, IOP Conference Series: Materials Science and Engineering, Vuosikerta 1288, Institute of Physics Publishing, International Workshop on Ship and Marine Hydrodynamics, Espoo, Suomi, 28/08/2023. https://doi.org/10.1088/1757-899X/1288/1/012022

Asymmetry in sagging and hogging responses of a ship hull. / Matusiak, Jerzy ; Karola, Aaro; Niemelä, Ari et al.
Proceedings of the 12th International Workshopon Ship and Marine Hydrodynamics. toim. / Spyros Hirdaris; Decheng Wan. Institute of Physics Publishing, 2023. 012022 (IOP Conference Series: Materials Science and Engineering; Vuosikerta 1288).

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference article in proceedings › Scientific › vertaisarvioitu

TY - GEN

T1 - Asymmetry in sagging and hogging responses of a ship hull

AU - Matusiak, Jerzy

AU - Karola, Aaro

AU - Niemelä, Ari

AU - Mikkola, Tommi

AU - Hirdaris, Spyros

N1 - Conference code: 12

PY - 2023/8/9

Y1 - 2023/8/9

N2 - In this paper asymmetry in sagging and hogging of a hull progressing in regular waves is investigated by applying a weakly nonlinear potential flow theory. At first instance ship motions in waves are evaluated using a linear strip-theory yielding transfer functions of ship motions and sectional loads. Then, by assuming time-histories of ship motions the nonlinear part of the Froude-Krylov and restoring forces and moments are evaluated using a panel representation. Linear and weakly nonlinear predictions are compared against available model tests for a roll-on/off (Ro-Pax) ship hull. The results confirm that importance of nonlinearities of restoring and Froude-Krylov part of wave loading on asymmetry of sagging and hogging.

AB - In this paper asymmetry in sagging and hogging of a hull progressing in regular waves is investigated by applying a weakly nonlinear potential flow theory. At first instance ship motions in waves are evaluated using a linear strip-theory yielding transfer functions of ship motions and sectional loads. Then, by assuming time-histories of ship motions the nonlinear part of the Froude-Krylov and restoring forces and moments are evaluated using a panel representation. Linear and weakly nonlinear predictions are compared against available model tests for a roll-on/off (Ro-Pax) ship hull. The results confirm that importance of nonlinearities of restoring and Froude-Krylov part of wave loading on asymmetry of sagging and hogging.

U2 - 10.1088/1757-899X/1288/1/012022

DO - 10.1088/1757-899X/1288/1/012022

M3 - Conference article in proceedings

T3 - IOP Conference Series: Materials Science and Engineering

BT - Proceedings of the 12th International Workshopon Ship and Marine Hydrodynamics

A2 - Hirdaris, Spyros

A2 - Wan, Decheng

PB - Institute of Physics Publishing

T2 - International Workshop on Ship and Marine Hydrodynamics

Y2 - 28 August 2023 through 1 September 2023

ER -

Matusiak J , Karola A, Niemelä A, Mikkola T, Hirdaris S. Asymmetry in sagging and hogging responses of a ship hull. julkaisussa Hirdaris S, Wan D, toimittajat, Proceedings of the 12th International Workshopon Ship and Marine Hydrodynamics. Institute of Physics Publishing. 2023. 012022. (IOP Conference Series: Materials Science and Engineering). doi: 10.1088/1757-899X/1288/1/012022

Asymmetry in sagging and hogging responses of a ship hull

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