浮体式洋上風力発電施設における長期係留健全性評価のための摩耗量推定手法の高度化

漂浮式海上风力发电设施长期系泊完整性评估的磨损估计方法的复杂度

• 批准号: 22K14428
• 负责人: 武内 崇晃
• 金额: $ 2.91万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22K14428/
• 关键词: 係留鎖摩耗; 長期摩耗推定; 有限要素解析; 浮体式洋上風力発電; 摩耗試験; 疲労評価

急深な海に囲まれた我が国において導入が期待される浮体式洋上風力発電では，その定点保持に使用される係留設備が浮体運動に伴い係留鎖が摩耗することが懸念されることから，定期検査の合理化やメンテナンスコストの低減などが課題となっている．本研究では，これらの達成に向け定量的な摩耗量推定手法の高度化を目的としている．本年度は，(1)有限要素（FE）解析による係留鎖間摩耗試験結果の再現手法の確立，(2)摩耗試験では再現困難な転がり運動を考慮したFE解析による長期摩耗解析手法の開発を目的とした．(1)について，係留鎖材料摩耗試験から3Dスキャナーを用いて取得した摩耗形状を考慮してFE解析を実施したが，摩耗形状を再現しても摩耗量を正確に推定できないことが判明した．これは材料試験から得られる摩耗係数の問題や，摩耗量が荷重と摺動距離に単純比例するとした摩耗量推定式の問題が考えられたため，研究計画を一部変更し，係留鎖材料摩耗試験を新たに実施することとした．摩耗量の荷重・摺動距離依存性の解明と，これまで実施できなかった実働荷重に近い条件での摩耗試験を可能とする，摩耗試験機の設計・開発に本年度から取り組み，次年度以降試験を開始予定である．(2)については，摩耗による要素体積の減少が再現可能なMSC. Marcの摩耗解析機能を用いて，摩耗した解析モデルをリメッシングすることで長期摩耗の再現を行った．本年度，この長期摩耗解析では摩耗係数を人為的に増加させることで摩耗を加速させた解析を行ったが，精度検証が未達成の為，次年度以降，上述した係留鎖材料試験との比較検証を実施し，解析条件の最適化やメッシュの仕様等を決定する．

In the deep sea, we are looking forward to the use of floating equipment at the fixed point to keep the equipment at the fixed point, and to keep the equipment at a fixed point to keep the equipment at a fixed point. The equipment is kept on a fixed point, and the equipment is kept at a fixed point. It is necessary to keep the equipment in place, and to keep the equipment in place. This year, (1) the finite element (FE) analysis of the friction loss test results show that the method is correct again, (2) the friction consumption test is found again, and the FE analysis method is used to analyze the long-term friction loss. (1) the analysis method of long-term friction consumption. (1) the analytical method of long-term friction consumption. In order to obtain the friction shape of the material, it is necessary to obtain the friction shape of the material by using the method of FE analysis, the analysis of the friction shape, the correct deduction of the friction loss, the correct estimation of the friction loss, the determination of the friction coefficient, the friction coefficient of the material, the friction coefficient of the material, the friction of the material. The formula for determining the amount of friction, the formula for determining the amount of friction, the formula for determining the amount of friction, the formula for determining the amount of friction, the formula for determining the amount of friction, the formula for determining the amount of friction, the formula for determining the amount of friction, the formula for determining the amount of friction, the formula for determining the amount of friction, the formula for determining the amount of friction, the amount of friction, the amount of material, the amount of material, the amount of friction, the amount of friction, the amount of weight, the distance, the friction, the load, the The design of the friction test machine will start to collect data for the current year, and the next year will start to set a schedule for the next year. (2) due to the low consumption rate, the key elements of the friction test may be MSC again. The Marc wear analysis machine can be used, and the wear analysis machine can be used to analyze the long-term wear and tear of the machine. This year, the long-term wear analysis of long-term wear and tear is due to the increase in the number of wear and tear. The precision is not yet achieved, and the accuracy is lower than that in the next year. Analyze the conditions such as "optimization", "optimization", and so on.

项目成果

浮体構造物係留鎖の長期摩耗に関する基礎的検討

浮式结构系泊链长期磨损的基础研究

• 发表时间: 2023
• 期刊: 日本船舶海洋工学会講演会論文集
• 作者: T. Kanehira;M.L. McAllister;S. Draycott;T. Nakashima;D.M. Ingram;T.S. van den Bremer;H. Mutsuda;廣中將人，武内崇晃
• 通讯作者: 廣中將人，武内崇晃

STUDY ON THE EFFECT OF PROOF LOAD TEST ON MOORING CHAIN WEAR FOR FLOATING STRUCTURES

保证载荷试验对浮动结构系泊链磨损影响的研究

• 发表时间: 2023
• 期刊: Proceedings of the ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering
• 作者: Takaaki Takeuchi;Kazuki Kurokawa;Masato Hironaka
• 通讯作者: Masato Hironaka