A two-step fluid-structure approach for the vibration analysis of flexible propeller blade

被引：1

作者：

Rakotomalala, Quentin ^{[1
,2
]}

Rouleau, Lucie ^{[2
]}

Leblond, Cedric ^{[1
]}

Abbas, Mickael ^{[3
]}

Deu, Jean-Francois ^{[2
]}

机构：

[1] Ctr Expertise Struct & Mat Navals CESMAN, Naval Grp, 5 Rue Halbrane, F-44340 Bouguenais, France

[2] Conservatoire Natl Arts & Metiers Cnam, Lab Mecan Struct & Syst Couples LMSSC, 292 Rue St Martin, F-75141 Paris 3, France

[3] Electr France EDF, Electrotech & Mecan Struct ERMES Dept, R&D Div, 7 Blvd Gaspard Monge, F-91120 Palaiseau, France

来源：

JOURNAL OF FLUIDS AND STRUCTURES | 2024年 / 126卷

关键词：

Fluid-structure interaction; Large deformation; Pre-stressed state; Vibroacoustic; Blade element method; Finite element method; FORMULATION; MODEL; BEM;

D O I：

10.1016/j.jfluidstructs.2024.104091

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, a numerical approach able to evaluate the sound power emitted by a noncavitating flexible marine propeller blade is proposed. With asymptotic expansions and order of magnitude analysis, two main phenomena are identified: the so-called propulsion and vibroacoustic phenomenon. The propulsion phenomenon is nonlinear and models the lift generation along the blade. It creates a pre -stress and a pre -strain on a deformed configuration on which the blade vibrates and emits sound waves. The vibroacoustic phenomenon is linearized and has no retroaction on the first static phenomenon. This simplified model allows to solve the fully coupled fluid-structure system in order to compute the radiated noise of a pre -stressed blade.

引用

页数：23

共 38 条

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