Fluid and Structure analysis of offshore wind power plant and floating structure using particle and vortex method

• Project/Area Number: 15K06621
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: Saga University
• Principal Investigator: HAGIHARA SEIYA 佐賀大学, 工学(系)研究科(研究院), 教授 (80198647)
• Co-Investigator(Kenkyū-buntansha): 永田 修一 佐賀大学, 海洋エネルギー研究センター, 教授 (30404205)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 粒子法 / 海洋浮体構造物 / 弾塑性解析 / 流体構造連成解析 / 渦法 / 安全性 / 流体－構造連成解析 / 安定性 / 流体ー構造連成解析

Outline of Final Research Achievements

The floating/fixed ocean structures such as wind power plants and other structures on offshore have to be taken account of safety in rough sea and tsunami. It is necessary to predict behaviors for both structures and fluid.
The smoothed particle hydrodynamics (SPH) method which is one of the particle methods is applied to some problems of fluid dynamics and solid mechanics. The SPH methods are mainly utilized to a number of problems for the fluid dynamics. If the structures in the ocean will be subjected to the large deformation from the waves, the stress may exceed the yield stress in the structures. The elastic-plastic effects have to be taken into account for the behavior of the structures. The stability terms are included for the open source software SPHysics for fluid analysis. Analyses of the mooring and floating structures are carried out by the SPH method and The vortex method.

Research Products

• [Journal Article] 弾塑性SPH法による塑性域挙動の解析 (2017)
  • Author(s): 萩原世也，甲斐千尋，武富紳也，只野裕一，田中智行
  • Journal Title: 日本計算工学会計算工学講演会論文集 Volume: 22
  • NAID: 40021219639
• [Journal Article] 弾塑性多直線近似構成則を用いたSPH法による変形解析 (2017)
  • Author(s): 竹中大輝，甲斐千尋, 萩原世也, 武富紳也, 只野裕一, 田中智行
  • Journal Title: 日本機械学会第30回計算力学講演会 Volume: 17 Pages: 262-262
  • NAID: 130006551181
• [Journal Article] Simulation of Floating Body in Nonlinear Waves by Vortex Method (2017)
  • Author(s): 永田修一, 大窪慈生, 今井康貴, 村上天元, 岡本豊
  • Journal Title: Journal of the Japan Society of Naval Architects and Ocean Engineers Volume: 25 Issue: 0 Pages: 21-31
  • DOI: 10.2534/jjasnaoe.25.21
  • NAID: 130006068552
  • ISSN: 1880-3717, 1881-1760
  • Peer Reviewed
• [Journal Article] A Time-Domain Numerical Tool for Wave Energy Attenuator eith the SPH Method (2017)
  • Author(s): Da-Wei Chen, Shuichi Nagata, Shiaw-Yih Tzang, Yasutaka Imai, Chih-Min Hsieh, Jiahn-Horng Chen
  • Journal Title: Journal of Marine Science and Technology Volume: 25 Pages: 752-60
  • Peer Reviewed
• [Journal Article] Effect of lattice rotation on hardening behavior of HCP metal (2017)
  • Author(s): Takaaki KURISU, Yuichi TADANO, Seiya HAGIHARA
  • Journal Title: Key Engineering Materials Volume: 725 Pages: 502-507
  • Peer Reviewed
• [Journal Article] Quantitative evaluation of deformation twinning behavior in polycrystalline pure magnesium (2017)
  • Author(s): Takeshi SOEDA, Yuichi TADANO, Seiya HAGIHARA
  • Journal Title: Key Engineering Materials Volume: 725 Pages: 214-219
  • Peer Reviewed
• [Journal Article] Treatment of Dirichlet-type boundary conditions in the spline-based wavelet Galerkin method employing multiple point constraints (2017)
  • Author(s): Sannomaru S, Tanaka S, Yoshida KI, Bui QT, Okazawa S, Hagihara S
  • Journal Title: Applied Mathematical Modelling Volume: 43 Pages: 592-610
  • DOI: 10.1016/j.apm.2016.11.018
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Measurement of torsional strain distributions on cylindrical surfaces using fiber Bragg grating optical fiber sensing (2016)
  • Author(s): Yutaka HAYAMA, Fumihiro OHSHIMA, Junichi IBUKURO, Akira MATSUO, Seiya HAGIHARA
  • Journal Title: Mechanical Engineering Letters Volume: 2 Issue: 0 Pages: 16-00502-16-00502
  • DOI: 10.1299/mel.16-00502
  • NAID: 130005280845
  • ISSN: 2189-5236
  • Peer Reviewed
• [Journal Article] Performance Analysis of a floating OWC-type Wave Energy Converter by Vortex Method (2016)
  • Author(s): Shigeki Okubo, Shuichi Nagata, Yasutaka Imai, Tengen Murakami, Toshiaki Setoguchi
  • Journal Title: Proc. of 3rd the Asian Wave & Tidal Energy Conference (AWTEC 2016) Volume: 2016 Pages: 667-676
  • Peer Reviewed
• [Journal Article] Analysis of dynamic stress concentration problems employing spline-based wavelet Galerkin method (2015)
  • Author(s): Satoyuki Tanaka, Shogo Sannomaru, Michiya Imachi, Seiya Hagihara, Shigenobu Okazawa, Hiroshi Okada
  • Journal Title: Engineering Analysis with Boundary Elements Volume: 58 Pages: 129-139
  • DOI: 10.1016/j.enganabound.2015.04.003
  • Peer Reviewed
• [Journal Article] Evaluation of optical space transmission performance for rotary shaft using FBG optical fiber sensing (2015)
  • Author(s): 葉山裕，大島史洋，衣袋順一, 松尾晃，萩原世也
  • Journal Title: Transactions of the JSME (in Japanese) Volume: 81 Issue: 826 Pages: 15-00072-15-00072
  • DOI: 10.1299/transjsme.15-00072
  • NAID: 130005084383
  • ISSN: 2187-9761
  • Peer Reviewed
• [Journal Article] 渦法による浮体構造物の非線形波浪中挙動解析法の開発 (2015)
  • Author(s): 大窪慈生，永田修一，今井康貴，新里英幸
  • Journal Title: 船舶海洋学会論文集 Volume: 22 Pages: 55-65
  • Peer Reviewed
• [Presentation] Smoothed particle hydrodynamics method for fluid-structure interaction analysis - Fluid analysis and elastic-plastic structural analysis- (2017)
  • Author(s): Seiya Hagihara, Chihiro Kai, Shinya Taketomi, Yuichi Tadano, Satoyuki Tanaka
  • Organizer: V International Conference on Particle-Based Methods (PARTICLES 2017)
  • Int'l Joint Research
• [Presentation] Modelling Wave-induced Motions of a Floating WEC with Mooring Lines using the SPH Method (2017)
  • Author(s): D.-W.,Chen, S., Nagata,Y.Imai
  • Organizer: Proceedings of the 3rd Asian Wave & Tidal Energy Conference
  • Int'l Joint Research
• [Presentation] 渦法による固定式波力発電の発電性能評価 (2016)
  • Author(s): 小村健、永田修一、今井康貴、村上天元
  • Organizer: 日本船舶海洋工学会講演会論文集
  • Place of Presentation: 岡山
  • Year and Date: 2016-11-21
• [Presentation] 多直線近似構成則を用いたSPH法による弾塑性解析 (2016)
  • Author(s): 甲斐千尋, 萩原世也, 武富紳也, 只野裕一, 田中智行
  • Organizer: 日本機械学会第29回計算力学講演会
  • Place of Presentation: 名古屋
  • Year and Date: 2016-09-22
• [Presentation] Smoothed particle hydrodynamics method for elastic-plastic analysis -Application of multi-linear constitutive equation- (2016)
  • Author(s): Seiya Hagihara, Tomohiro Shirahama, Shinya Taketomi, Yuichi Tadano and Satoyuki Tanaka
  • Organizer: The 7th International Conference on Computational Methods (ICCM2016)
  • Place of Presentation: バークレー
  • Year and Date: 2016-08-01
• [Presentation] Elastic-plastic smoothed particle hydrodynamics method for fluid-structure interaction analysis -multi-linear constitutive equation- (2016)
  • Author(s): Seiya Hagihara, Tomohiro Shirahama, Chihiro Kai, Shinya Taketomi and Yuichi Tadano, Satoyuki Tanaka
  • Organizer: 12th World Congress on Computational Mechanics (WCCM XII) and 6th Asia-Pacific Congress on Computational Mechanics (APCOM VI)
  • Place of Presentation: ソウル
  • Year and Date: 2016-07-24
• [Presentation] SPH法への多直線近似弾塑性構成則の適用 (2016)
  • Author(s): 萩原世也，白濱智大，甲斐千尋，武富紳也，只野裕一，田中智行
  • Organizer: 日本計算工学会計算工学講演会論文集
  • Place of Presentation: 新潟
  • Year and Date: 2016-05-31
• [Presentation] SPH法による弾塑性解析 (2015)
  • Author(s): 萩原世也
  • Organizer: 日本機械学会第28回計算力学講演会
  • Place of Presentation: 横浜
  • Year and Date: 2015-10-11
• [Presentation] Elastic-plastic smoothed particle hydrodynamics method for fluid-structure interaction analysis (2015)
  • Author(s): Seiya Hagihara
  • Organizer: The Fourth Conference on Particle-Based Methods
  • Place of Presentation: Barcelona, Spain
  • Year and Date: 2015-09-28
  • Int'l Joint Research
• [Presentation] Calculation of Stress Intensity Factor Using Meshfree Method with Dynamic Bubble System (2015)
  • Author(s): Seiya Hagihara
  • Organizer: 13th U.S. National Congress on Computational Mechanics
  • Place of Presentation: San Diego, USA
  • Year and Date: 2015-07-29
  • Int'l Joint Research
• [Presentation] SPH法による弾塑性構成則の検討 (2015)
  • Author(s): 萩原世也
  • Organizer: 日本計算工学会計算工学講演会論文集
  • Place of Presentation: 筑波
  • Year and Date: 2015-06-09
• [Presentation] Smoothed particle hydrodynamics method for fluid-structure interaction analysis - elastic-plastic analysis of structure - (2015)
  • Author(s): Seiya Hagihara
  • Organizer: 1st Pan American Congress on Computational Mechanics
  • Place of Presentation: Buenos Aires, Argentina
  • Year and Date: 2015-04-29
  • Int'l Joint Research