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Numerical and experimental study on a multi-body articulated wave energy converter

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  • Li, Chenglong
  • Qian, Peng
  • Zhang, Dahai

Abstract

The distinctive undulating form of ocean waves gives rise to multi-body articulated wave energy converters (WECs) characterized by free movement and adaptable configurations. The interaction between floating bodies, the constraints imposed by the articulation mechanism, and the coupled effects of the mooring system make the hydrodynamic calculations of the WEC exceptionally complex. In this study, a novel configuration of a multi-body articulated WEC is proposed, consisting of seven floating bodies connected by six articulated joints, representing an extended array system with more intricate hydrodynamic behavior. A time-domain dynamic coupling model is developed to integrate articulated mechanical connections, a three-component catenary mooring system, and the seven-body articulated structure. The developed coupling model is supplemented with viscous corrections. Based on this model, the influence of structural and wave parameters on hydrodynamic performance is systematically investigated. Finally, physical model tank tests and prototype sea-trials are conducted. Good agreement is observed between the numerical and experimental results, demonstrating the feasibility of the proposed numerical coupling model.

Suggested Citation

  • Li, Chenglong & Qian, Peng & Zhang, Dahai, 2026. "Numerical and experimental study on a multi-body articulated wave energy converter," Energy, Elsevier, vol. 342(C).
    • Handle: RePEc:eee:energy:v:342:y:2026:i:c:s0360544225052995
    DOI: 10.1016/j.energy.2025.139657
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