| 架空输电线脱冰跳跃高度的计算公式 |
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| 引用本文： | 严波,郭跃明,陈科全,梁明.架空输电线脱冰跳跃高度的计算公式[J].重庆大学学报(自然科学版),2009,32(11):1306-1310. |
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| 作者姓名： | 严波 郭跃明 陈科全 梁明 |
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| 作者单位： | 严波,陈科全,YAN Bo,CHEN Ke-quan(重庆大学工程力学系,重庆,400030);郭跃明,梁明,GUO Yue-ming,LIANG Ming(中国电力工程顾问集团西南电力设计院,四川成都,610021) |
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| 基金项目： | 中国电力工程顾问集团公司资助项目 |
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| 摘 要： | 在采用有限元数值模拟方法研究架空高压输电线脱冰跳跃问题的基础上,通过对各种脱冰工况和不同参数情况下导线脱冰动力响应数值结果的分析,得到导线脱冰后最大跳跃高度与导线脱冰前后静止状态的弧垂差之间的定量关系,进而给出连续档最大跳跃高度的工程实用简化计算公式.利用该公式可以简化重冰区高压输电线导线之间以及导地线之间安全间隙的设计,具有重要的工程实用价值.
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| 关 键 词： | 高压输电线 脱冰 动力响应 冰跳高度 数值模拟 |
| 收稿时间： | 2009/6/26 0:00:00 |
Formula for jump height of overhead transmission lines after ice-shedding |
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| YAN Bo,GUO Yue-ming,CHEN Ke-quan,LIANG Ming.Formula for jump height of overhead transmission lines after ice-shedding[J].Journal of Chongqing University(Natural Science Edition),2009,32(11):1306-1310. |
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| Authors: | YAN Bo GUO Yue-ming CHEN Ke-quan LIANG Ming |
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| Affiliation: | YAN Bo1,GUO Yue-ming2,CHEN Ke-quan1,LIANG Ming2(1.Department of Engineering Mechanics,Chongqing University,Chongqing 400030,P.R.China,2.SouthwestElectric Power Design Institute of Electric Power Project Group of China,Chengdu 610021,Sichuan,P.R.China) |
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| Abstract: | This paper numerically investigates the jump heights of overhead transmission lines after ice-shedding by the finite element method,and simulates the dynamic responses of the transmission lines,with different structure parameters,in different ice-shedding conditions.Based on the results,it obtains the quantitative relations between the jump height of conductor and the amplitude difference of the two static states of the conductors before and after ice-shedding,and proposes a simplified formula for the jump ... |
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| Keywords: | high voltage transmission lines ice-shedding dynamic response jump height numerical simulation |
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