于彬 1张元良 1成佃虎 1杨睿 1丁里宁 2扶真3
作者信息
- 1. 江苏科能电力工程咨询有限公司,南京 211100
- 2. 南京林业大学 土木工程学院,南京 210037
- 3. 东南大学 土木工程学院,南京 211189
- 折叠
摘要
Abstract
Offshore floating PV brackets are facing more complex environmental loads,which will have a significant impact on the hydrodynamic performance of such PV brackets.Based on this,this paper proposes an offshore floating BFRP PV brackets based on BFRP composite material,and designs three configurations of offshore floating BFRP PV brackets with different body sizes.Firstly,the hydrodynamic analysis software AQWA is used to design parameters for different configurations.Then,adding viscous damping correction to the numerical model to improve the calculation accuracy of the motion response of the floating structure is analyzed,and motion response characteristic data of different configurations are obtained.Finally,based on the motion response amplitude operator(RAO)of different configurations,two comprehensive evaluation methods in multi-objective decision analysis are used to analyze the hydrodynamic performance of different configurations,and the optimal configuration of offshore floating BFRP PV brackets is selected.The research results show that:1)The floating structure numerical model established by AQWA software has good reliability,and its motion response results in the three freedom degrees of surge,heave,and pitch are in good agreement with the experimental model,and can accurately simulate the motion characteristics of the floating structure in wave environments.2)After adding viscous damping correction to the numerical model,the sudden change in the RAO of the configuration are significantly improved,and the calculation accuracy of the motion response of the floating structure is significantly improved.3)As the size of the main body of the configuration increases,the RAO of different configurations in the six freedom degree directions generally shows a gradually decreasing trend,and gradually narrow in the frequency range with large wave amplitudes,avoiding large amplitude motion response in the high-frequency stage.4)Based on the AHP method,the weight coefficients of motion response of the six freedom degrees for different configurations are calculated,and the comprehensive distance between the motion response and their ideal optimal solution of different configurations is determined by TOPSIS method.Finally,the M3 configuration is selected as the optimal configuration for the offshore floating BFRP PV bracket with the best hydrodynamic performance.The research results can provide reference for the practical engineering application of offshore PV power generation and the optimization of PV bracket structure design.关键词
海上漂浮式光伏支架/玄武岩纤维增强复合材料/海上光伏发电/运动响应幅值算子/水动力性能/结构设计/粘性阻尼修正/多目标决策分析Key words
offshore floating PV bracket/BFRP composite material/offshore PV power generation/RAO/hydrodynamic performance/structural design/viscous damping correction/multi-objective decision analysis分类
海洋科学
