Advertisement

Optimization Structure Design of Offshore Oscillating Water Column (OWC) Wave Energy Converter

  • Khairul Anuar bin Mat Saad
  • Ahmad Khairil bin AzmanEmail author
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

Oscillating water column (OWC) is one of optional renewable energy device that been used for converting kinetic energy from waves energy into electrical energy. Suitable structural design must be measured and determine to make sure structure is capable to resist wave load. The scope of the research is to design of closed structure of OWC. A model has been set up in Ansys AQWA and Ansys Static Structural which has been undergone through several steps. The model has been run with selected significant wave frequency which is from article finding of the research. Hydrodynamic diffraction analysis has been carried out to identify maximum wave pressure acting on model. Maximum wave pressure be one of component to determine maximum equivalent stress (von Mises) and total deformation of OWC closed structure. There are 4 detail design structure models in this research. Furthermore, there are also 4 different position of maximum wave pressure acting on structure model. Parameter that involve in research including type of material, type of stiffener, number of stiffener and number of frame. Optimization process also carried out by selected suitable detail design structure model to minimize maximum equivalent stress (von Mises) and total deformation. Result shows the optimization process de-creased on structure up to 20–70% at different position for maximum equivalent stress (von Mises). Total deformation also decreased on structure up to 25–80% at different position.

Keywords

Oscillating water column (OWC) Finite element analysis (FEA) Structural analysis 

References

  1. 1.
    ANSYS (2012) AQWA user manual. Release 14 Oct, pp 724–746 Google Scholar
  2. 2.
    ANSYS (2013) ANSYS Mechanical user guide. Release 15 Nov, pp 724–746Google Scholar
  3. 3.
    Ashlin SJ, Sannasiraj SA, Sundar V (2015) Wave forces on an oscillating water column device. Procedia Eng 116:1019–1026CrossRefGoogle Scholar
  4. 4.
    Bellamy NW, Bucchi A, Hearn GE (2016) Analysis of the SEA-OWC-Clam wave energy device—part A: historical development, hydro-dynamic and motion response formulations & solutions. Renew Energy 44:1–40Google Scholar
  5. 5.
    Bhattacharya R (1978) Dynamics of marine vehicles. Wiley, New YorkGoogle Scholar
  6. 6.
    Brusca S, Cucinotta F, Galvagno A, Lanzafame R, Mauro S, Messi-na M (2015) Oscillating water column wave energy converter by means of straight-bladed darrieus turbine. Energy Procedia 82:766–773CrossRefGoogle Scholar
  7. 7.
    Bucchi A, Hearn GE (2016) Analysis of the SEA-OWC-Clam wave energy device part B: structural integrity analysis. Renew Energy 99:253–269CrossRefGoogle Scholar
  8. 8.
    Bull D, Smith C, Jenne DS, Jacob P, Copping A, Willits S, Jepsen R (2014) Reference model 6 (RM6): oscillating wave energy converter. Sandia National Laboratories, 6 SeptGoogle Scholar
  9. 9.
    Falcão AFO, Henriques JCC (2016) Oscillating-water-column wave energy converters and air turbines: a review. Renew Energy 85:1391–1424CrossRefGoogle Scholar
  10. 10.
    Kurowski PM (2012) What is calculated in FEA? 1–3. Retrieved from http://debis.deu.edu.tr
  11. 11.
    Park S, Choi E, Wang B, Kim H, Kwak S (2016) Design of spar-type floating substructures for a 2.5 MW-class wind turbine using fluid-structure coupled analysis, pp 3536–3548Google Scholar
  12. 12.
    Parkinson DB (2008) Function variability optimization in parameter design. Qual Technol Quant Manag 5(3):263–270MathSciNetCrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Khairul Anuar bin Mat Saad
    • 1
  • Ahmad Khairil bin Azman
    • 1
    Email author
  1. 1.Malaysian Institute of Marine Engineering TechnologyUniversiti Kuala LumpurKuala LumpurMalaysia

Personalised recommendations