Structural Performance of Swept Cycloidal Propeller Blades Using Coupled Boundary Element and Finite Element Method

Abstract

This study examined the impact of the leading-edge sweep angle on the vibration characteristics of a marine cycloidal propeller (MCP) blade during different ship maneuvering motions using a coupled three-dimensional boundary element method (BEM) and finite element method (FEM) approach. Through this approach, the study captured the interaction between hydrodynamics and structural dynamics, providing a comprehensive understanding of the response of the swept MCP blade. The following ship maneuvers were analyzed: bollard pull, crabbing, crash stop, cruising, and turning circle. During MCP operation, each blade undergoes one oscillation about its own longitudinal axis for each rotation of the horizontal propeller disc. The face and back of the propeller blade interchange during each oscillation. Consequently, the propeller blades are subjected to higher fluctuations in loading because of changes in the angle of attack and inflow velocity at each time instant. This results in complex and unstable fluid dynamics at the blade location. Variations in the sweep angle can profoundly influence the performance of the blade by altering the hydrodynamic loads and structural responses. The impact of the sweep angle is depicted through changes in the displacement, velocity, twisting angle, twisting moment, and von Mises stress of the blade. Furthermore, because of the load fluctuations on the blade, fatigue and load variations in each disc revolution must be considered during the design of cycloidal propellers. Therefore, a preliminary fatigue assessment for each maneuver was conducted. The research provides valuable information into the behavior of swept MCP blades under various loading conditions.

Keywords

Cycloidal propeller / Ship maneuvering / Sweep angle / Boundary element method-finite element method (BEM-FEM) / Fatigue

References

[1] AkcabayDT, YoungYL. Material anisotropy and sweep effects on the hydroelastic response of lifting surfaces. Composite Structures, 2020, 242112140

[2] ANSYS IncANSYS Mechanical (Version 2023 R1) [Computer software], 2023

[3] BlairM, WeisshaarTA. Swept composite wing aeroelastic divergence experiments. Journal of Aircraft, 1982, 19(11): 1019-1024

[4] ČuprP, RudolfP, HabánV. Numerical investigation of added mass and damping effects on a hydrofoil in cavitation tunnel. Proceeding of 20. Internationales Seminar Wasserkraftanlagen, 2018

[5] DashA, NagarajanV, ShaOP. Uncertainty analysis for ship maneuvering in model scale and full scale measurements. International Journal of Innovative Research and Development, 2012, 1(10): 428-448

[6] De La TorreO, EscalerX, EgusquizaE, FarhatM. Experimental investigation of added mass effects on a hydrofoil under cavitation conditions. Journal of Fluids and Structures, 2013, 39: 173-187

[7] DNV GL Class GuidelineCalculation of marine propellers, DNVGL-CG-0039, 2015

[8] DucoinA, YoungYL. Hydroelastic response and stability of a hydrofoil in viscous flow. Journal of fluids and structures, 2013, 38: 40-57

[9] Federal Aviation AdministrationUS Department of Transportation, Propeller vibration and fatigue, 2011

[10] GargN, KenwayGK, MartinsJR, YoungYL. High-fidelity multipoint hydrostructural optimization of a 3-D hydrofoil. Journal of Fluids and Structures, 2017, 71: 15-39

[11] GhassemiH, YariE. The added mass coefficient computation of sphere, ellipsoid and marine propellers using boundary element method. Polish Maritime Research, 2011, 18(1): 17-26

[12] ITTCProceedings. 26th International Towing Tank Conference, Rio de Janeiro, Brazil, 2011

[13] KatzJ, PlotkinALow-speed aerodynamics, 2001

[14] KimYJ, LeeHY, LeeCS. The added mass and damping for the axial rigid body motion of a marine propeller rotating in a uniform flow. Journal of the Society of Naval Architects of Korea, 2008, 453: 309-314

[15] LiJ, QuY, ChenY, HuaH. Investigation of added mass and damping coefficients of underwater rotating propeller using a frequency-domain panel method. Journal of Sound and Vibration, 2018, 432: 602-620

[16] LiaoY, MartinsJR, YoungYL. Sweep and anisotropy effects on the viscous hydroelastic response of composite hydrofoils. Composite, 2019, Structures230111471

[17] LottatiI. Flutter and divergence aeroelastic characteristics for composite forward swept cantilevered wing. Journal of Aircraft, 1985, 22(11): 1001-1007

[18] NandyS, NagarajanV, ShaOP. Model experiments with different cycloidal propeller algorithms using same electric controller. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 2022, 236(2): 436-461

[19] NandyS, NagarajanV, ShaOP. On the heuristic based electronic control of marine cycloidal propeller. Applied Ocean Research, 2018, 78: 134-155

[20] OzdemirYH, BarlasB. 2D and 3D potential flow simulations around NACA 0012 with ground effect. Research Square, 2021

[21] PicaA, WoodRD, HintonE. Finite element analysis of geometrically nonlinear plate behaviour using a mindlin formulation. Computers & Structures, 1980, 11(3): 203-215

[22] PrabhuJJ, DashAK, NagarajanV, ShaOP. On the hydrodynamic loading of marine cycloidal propeller during maneuvering. Applied Ocean Research, 2019, 86: 87-110

[23] PrabhuJJ, DashAK, NagarajanV, SunnyMR. Vibration analysis of cycloidal propeller blade during ship maneuvering. Journal of Marine Science and Technology, 2023, 28(1): 44-71

[24] PrabhuJJ, NagarajanV, SunnyMR, ShaOP. On the fluid structure interaction of a marine cycloidal propeller. Applied Ocean Research, 2017, 64: 105-127

[25] RabczukT, ZiG, BordasS, Nguyen-XuanH. A simple and robust three-dimensional cracking-particle method without enrichment. Computer Methods in Applied Mechanics and Engineering, 2010, 199: 2437-2455

[26] WangX, ZhangY, WenM, MangHA. A simple hybrid linear and nonlinear interpolation finite element for the adaptive Cracking Elements Method. Finite Elements in Analysis and Design, 2025, 244104295

[27] ZhangY, HuangJ, YuanY, MangHA. Cracking elements method with a dissipation-based arc-length approach. Finite Elements in Analysis and Design, 2021, 195103573

[28] ZhangY, ZhuangX. Cracking elements method for dynamic brittle fracture. Theoretical and Applied Fracture Mechanics, 2019, 102: 1-9

[29] ZienkiewiczOC, TaylorRL, TaylorRLThe finite element method: solid mechanics (2) Butterworth-heinemann, 2000

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Harbin Engineering University and Springer-Verlag GmbH Germany, part of Springer Nature