摘要
编织缆索是陆基高空风力发电功率传输的重要装置之一,连接高空捕风伞梯和地面装备,其与滚筒周期性接触弯曲而不断产生摩擦热能。为预测编织缆索产生摩擦生热能量的损耗,提出了一种针对12股编织缆索-滚筒的数值建模方法,基于含孔隙的RVE(representation volume element)模型原理,实现了从细观纤维到宏观编织缆索的建模;研究了编织缆索-滚筒传输功率过程中产生的摩擦生热规律,揭示了陆基高空风电系统中编织缆索的摩擦热生成机制。结果表明,随着滚筒的半径增大,编织缆索的摩擦耗能减小,编织缆索传输功率时由于弯曲而产生摩擦损耗的比例为0.62%~4.3%。
Braided rope is one of the important devices for power transmission in land-based high altitude wind power generation,connecting the high altitude wind catching parachute ladder and the ground equipment,which is in periodic contact with the drum bending and constantly generating frictional heat energy.In order to predict the frictional heat energy loss generated by the braided rope,a numerical modelling method for 12-strand braided rope-drum was proposed,which was based on the principle of the pore-containing RVE(representation volume element)model,and realized the modelling of the rope from the fine fibre to the macroscopic braided rope;and the frictional heat generation law generated in the process of power transmission of the braided rope-drum was investigated.The frictional heat generation law in the process of braided rope-drum power transfer was investigated,and the frictional heat generation mechanism of braided rope in land-based high altitude wind power system was revealed.The results show that the friction energy dissipation of braided rope decreases with the increase of drum radius,and the proportion of friction loss caused by bending of braided rope during power transmission is 0.62%~4.3%.
作者
罗家元
卢京
徐向阳
LUO Jia-yuan;LU Jing;XU Xiang-yang(School of Electromechanical and Vehicle Engineering,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《科学技术与工程》
北大核心
2025年第31期13375-13383,共9页
Science Technology and Engineering
基金
国家重点研发计划(2023YFB4203403,2023YFB4203402)。
关键词
高空风能发电
编织缆索
正交各向异性
滚筒
摩擦生热
high-altitude wind power generation
braided rope
orthogonal anisotropy
roller
friction heat generation
