A numerical sensitivity analysis of fluid-structure interaction simulations on slamming loads and responses
A numerical sensitivity analysis of fluid-structure interaction simulations on slamming loads and responses
This paper presents a parametric study on the Multi Material Arbitrary Lagrangian–Eulerian (MMALE) method for hydroelastic analysis of a non-prismatic stiffened aluminium wedge. An explicit finite element formulation with a penalty-based coupling technique is employed to evaluate the impact-induced loads and responses during free-fall water entry. Based on the penalty factor, damping factor, and number of coupling points, a sensitivity analysis is carried out. It is shown that the penalty coupling method can generate high-frequency oscillations due to the nature of the phenomenon that may affect the predicted results of slamming loads. The computed results on the stiffened and unstiffened plates of the wedge are compared with published experimental data in terms of vertical acceleration, pressure distributions, and strain responses at different locations. A reasonable agreement can be found between the numerical results and the measured values. It is found that a combination of penalty and damping can improve the simulation results and reduce numerical instabilities in hydroelastic slamming simulations.
Hosseinzadeh, Saeed
47ee65b8-f6a8-4c4f-b99c-146eb389464b
Topa, Ameen
d5723b90-af1d-4e22-ba3e-9534a8791f3b
Tabri, Kristjan
356c5b68-8f06-4c67-8b75-14216758c1c8
2023
Hosseinzadeh, Saeed
47ee65b8-f6a8-4c4f-b99c-146eb389464b
Topa, Ameen
d5723b90-af1d-4e22-ba3e-9534a8791f3b
Tabri, Kristjan
356c5b68-8f06-4c67-8b75-14216758c1c8
Hosseinzadeh, Saeed, Topa, Ameen and Tabri, Kristjan
(2023)
A numerical sensitivity analysis of fluid-structure interaction simulations on slamming loads and responses.
IOP Conference Series: Materials Science and Engineering, 1288, [012017].
(doi:10.1088/1757-899X/1288/1/012017).
Abstract
This paper presents a parametric study on the Multi Material Arbitrary Lagrangian–Eulerian (MMALE) method for hydroelastic analysis of a non-prismatic stiffened aluminium wedge. An explicit finite element formulation with a penalty-based coupling technique is employed to evaluate the impact-induced loads and responses during free-fall water entry. Based on the penalty factor, damping factor, and number of coupling points, a sensitivity analysis is carried out. It is shown that the penalty coupling method can generate high-frequency oscillations due to the nature of the phenomenon that may affect the predicted results of slamming loads. The computed results on the stiffened and unstiffened plates of the wedge are compared with published experimental data in terms of vertical acceleration, pressure distributions, and strain responses at different locations. A reasonable agreement can be found between the numerical results and the measured values. It is found that a combination of penalty and damping can improve the simulation results and reduce numerical instabilities in hydroelastic slamming simulations.
Text
Hosseinzadeh_2023_IOP_Conf._Ser.__Mater._Sci._Eng._1288_012017
- Version of Record
More information
Published date: 2023
Identifiers
Local EPrints ID: 486176
URI: http://eprints.soton.ac.uk/id/eprint/486176
ISSN: 1757-899X
PURE UUID: 0863a71f-fd7a-4274-abcb-ae33609e72a6
Catalogue record
Date deposited: 12 Jan 2024 17:35
Last modified: 18 Mar 2024 04:16
Export record
Altmetrics
Contributors
Author:
Saeed Hosseinzadeh
Author:
Ameen Topa
Author:
Kristjan Tabri
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics