摘要
为降低导线表面风压,近年来国内外学者提出了多种截面形状的低风压导线,验证了其工作机理。然而,鲜见涉及低风压导线结构稳定性、放线跳股问题的研究。为此,利用ANSYS软件对架空线路中常用的钢芯铝绞线和低风压导线建立有限元模型,并结合导线放线时发生跳股的判定依据,分析不同工况下,导线放线时的位移云图与结构稳定性,探讨最外层导线根数与导线结构稳定性的关系。结果表明,低风压导线最外圈导线根数越多,导线结构越稳定。
In order to reduce the wind pressure on the surface of the conductor, scholars at home and abroad have put forward a series of low-wind-pressure conductors with different section shapes and validated their working mechanism. However, there are few reports about the structural stability of the low-wind-pressure conductor and the problem of strand jumping. Therefore, the finite element model is established for aluminum conductor steel reinforced commonly used and low-wind-pressure conductor by ANSYS software. Based on criterion of strand jumping occurred on line, the displacement cloud and structural stability of the wire under different working conditions are analyzed. At the same time, the relationship between the number of outermost wire strands and the stability of conductor structure is discussed. The results show that the more the conductor number of the outer ring, the more stable the wire structure.
出处
《图学学报》
CSCD
北大核心
2018年第1期129-135,共7页
Journal of Graphics
基金
国家自然科学基金面上项目(51575180)
北京自然科学基金面上项目(8152027)
关键词
低风压导线
放线
有限元分析
稳定性
low-wind-pressure conductor
pay-off
finite element analysis
stability
