Motions and Load Characteristics of an Attenuator Type Wave Energy Converter in Longitudinal Waves

屈曲動揺型波力発電装置の波浪中運動特性に関する研究

This paper experimentally investigated motions and loads characteristics of an attenuator type wave energy converter (AWEC) in longitudinal waves. The AWEC model consists of a set of cylindrical floats linked by two-degree-of-freedom joints. The power take-off (PTO) system of the AWEC model is a linear spring and damper system. Several conditions of the PTO system, such as power production conditions and fault conditions, were tested by the tank test. From the test results, response amplitude of the joint angle between cylindrical floats changes with the PTO system conditions both in regular and in irregular waves. As the load characteristics acting on the joints were affected by the PTO system conditions, it is important for the safety assessments of the AWEC to consider the conditions of the PTO system. The AWEC’s simulation model based on a commercial code, the Orcaflex, was constructed and the simulated results were compared to the measured ones in regular waves. The model reasonably explained measured motions for each tested PTO conditions and measured loads on the AWEC if the PTO system was set to the power production condition or the fault condition that the joints were free to rotate.

• Record URL:
  https://doi.org/10.2534/jjasnaoe.27.89
• Record URL:
  http://scholar.google.com/scholar_lookup?title=Motions%20and%20Load%20Characteristics%20of%20an%20Attenuator%20Type%20Wave%20Energy%20Converter%20in%20Longitudinal%20Waves&author=T.%20Taniguchi&author=R.%20Matsui&author=K.%20Shimozato&author=T.%20Fujiwara&author=S.%20Inoue&publication_year=2018
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/18803717
• Authors:
  • Taniguchi, Tomoki
  • Matsui, Ryosuke
  • Shimozato, Kohei
  • Fujiwara, Toshifumi
  • Inoue, Shunji
• Publication Date: 2018

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 89-98
• Serial:
  • Journal of the Japan Society of Naval Architects and Ocean Engineers
  • Volume: 27
  • Issue Number: 0
  • Publisher: Japan Society of Naval Architects and Ocean Engineers
  • ISSN: 1880-3717
  • EISSN: 1881-1760
  • Serial URL: https://www.jstage.jst.go.jp/browse/jjasnaoe/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Energy conversion; Floating structures; Joints; Loads; Motion; Simulation; Water waves
• Subject Areas: Energy; Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 01680078
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Sep 11 2018 11:16AM