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Hydrodynamic performance of multiple co-axial heave plates with different diameters

Abazari, A ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1080/17445302.2019.1625109
  3. Publisher: Taylor and Francis Ltd , 2020
  4. Abstract:
  5. Heave plates are structural components of a floating structure whose primary purpose is to increase damping and added mass in heave or pitch direction. If multiple plates are stacked along a common axis, then the relative diameters and spacing in between are important factors affecting the performance. In the present study, hydrodynamic coefficients of single, double and triple disks are experimentally investigated in different arrangements as Uniform, Concave and Convex edge shapes. It is observed that each disk in a multiple arrangement with lower diameter ratio have better hydrodynamic performance compared to the cases with higher diameter ratio when the spacing is small compared to the mean diameter. Some hydrodynamic aspects affecting floating structure design are also discussed in this paper. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group
  6. Keywords:
  7. Heave plate ; Keulegan–Carpenter number ; Multiple heave plates ; Oscillating disk ; Damping ; Disks (structural components) ; Hydrodynamics ; Sailing vessels ; Added mass ; Diameter ratio ; Floating structures ; Heave plates ; Hydrodynamic coefficients ; Hydrodynamic performance ; Oscillating disks ; Structural component ; Plates (structural components)
  8. Source: Ships and Offshore Structures ; Volume 15, Issue 4 , 2020 , Pages 380-392
  9. URL: https://www.tandfonline.com/doi/abs/10.1080/17445302.2019.1625109?journalCode=tsos20