含聚酯缆绳锚泊系统疲劳分析及布置方位优化  

Fatigue Life Analysis and Orientation Optimization of Mooring System with Polyester Cables

作　　者：黄正 聂铭 梁永纯 谢文平 刘小璐 罗啸宇 HUANG Zheng;NIE Ming;LIANG Yongchun;XIE Wenping;LIU Xiaolu;LUO Xiaoyu(Electric Power Research Institute of Guangdong Power Grid Co.,Ltd.,Guangzhou,Guangdong 510080,China;Guangdong Provincial Key Laboratory of Electric Power Equipment Reliability,Guangzhou,Guangdong 510080,China)

机构地区：[1]广东电网有限责任公司电力科学研究院,广东广州510080 [2]广东省电力装备可靠性企业重点实验室,广东广州510080

出　　处：《广东电力》2023年第8期1-7,共7页Guangdong Electric Power

基　　金：国家重点研发计划项目课题3(2019YFB1504403);中国南方电网有限责任公司科技项目(GDKJXM20201976)。

摘　　要：为更合理地布设兆瓦级波浪能发电装置及其锚泊系统,开展浅水域含聚酯缆绳锚泊系统的疲劳损伤分析及布置方位优化研究。首先,在ANSYS-AQWA软件中建立发电装置与锚泊系统的耦合分析模型,采用时域分析方法计算各锚泊线在不同短期海况下动态响应;其次,采用雨流计数法,计算得到相应的锚泊线的疲劳载荷谱;然后,考虑波浪玫瑰图,基于Miner疲劳累积损伤理论计算各锚泊线在长期海况条件下的疲劳损伤;最后,设计4种对能量捕获有利的波浪能装置布置方案。研究发现不同的布置方案中锚泊线疲劳寿命差异较大,故建议在工程中,除了要考虑能量捕获效率外,还应计算装置的布置对锚泊系统疲劳寿命的影响,从而得到相对最优设计。To reasonably arrange the megawatt wave energy converter and its mooring system,this paper analyzes and studies the fatigue damage and orientation optimization of the mooring system with polyester cables.Firstly,it establishes the coupling analysis model between wave energy converter and the mooring system in ANSYS-AQWA software,and uses the the time-domain analysis method to calculate dynamic response of each mooring line under different short-term sea conditions.Secondly,it uses the rain-flow counting method to calculate the fatigue load spectrum of the mooring line.Then,considering wave rose diagram,the paper calculates the fatigue damage of each mooring line under long-term sea conditions based on Miner linear fatigue cumulative damage theory.Finally,it designs four kinds of wave energy converter schemes for capturing energy.It is found that the fatigue life of the mooring line is greatly affected by different layout schemes.Therefore,it is suggested that in the engineering,besides considering the energy capture efficiency,the influence of the layout on the fatigue life of the mooring system should be calculated to obtain the relative optimal design.

关 键 词：波浪能转换 水动力学 聚酯缆 锚泊线 疲劳损伤 

分 类 号：TM612[电气工程—电力系统及自动化] P743.2[天文地球—海洋科学]