摘要
在ANSYS中建立导线有限元模型,分别对架空线在自重载荷作用和均匀覆冰且不考虑风载荷的2种情况下进行有限元找形分析。通过对比ANSYS找形结果与理论计算结果,发现ANSYS找形方法所得结果更接近精确悬链线解,验证了ANSYS找形的可靠性。找形结果还说明在覆冰状态下导线的各个参数变化明显,这对架空线路的安全运行造成了一定的隐患,有必要对其进行找形分析。进一步提出把有限元找形分析和在线监测系统相结合,可以使得覆冰状态下的监测结果更加精确。
A finite element model is established in ANSYS for the finite element form-finding analysis of overhead line,considering dead weight,uniform ice-coating and no wind load. The comparison between ANSYS form-finding analysis and theoretical calculation shows that the results of the former is closer to the accurate catenary solution,verifying its reliability. The results of form-finding analysis show that the icecoating changes line parameters obviously,which is a potential threat to the safe operation of overhead line, and the form-finding analysis is necessary for ice-coated lines. It is proposed to integrate the finite element form-finding analysis into the online monitoring system to obtain more accurate conditions of ice-coated lines.
出处
《电力自动化设备》
EI
CSCD
北大核心
2014年第6期72-76,共5页
Electric Power Automation Equipment
基金
国家自然科学基金资助项目(51177115)
教育部新世纪优秀人才支持计划(NCET-11-1043)
陕西省教育厅专项科研计划项目(2010JK569)
西安工程大学创新基金资助项目(chx2013036)~~
关键词
架空线
找形
索结构
覆冰
ANSYS
有限元
监测
模型
overhead line
form-finding
cable structure
ice-coating
ANSYS
finite element
monitoring
models
