超高压电容器结构抗震性能分析
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摘要
超高压电容器装置结构是电力系统重要组成部分,其上重下轻、阻尼比小的结构特点不利抗震.本文采用大型通用有限元程序ANSYS,对该结构进行了模态分析和谱分析,结构基频较低约1.02Hz.对结构在自重作用、X与Y向地震作用、X与Y向风荷载作用下进行计算分析,得出以下主要结论:各部件的最大应力均小于规范要求;台架梁的最大相对变形为1/2671,小于规范值1/400;结构满足8度抗震设防要求.
EHV Capacitor device structure is an important component in the electric power system.The structure has high gravity center and low damping ratio,thus its seismic behavior is impacted sensitively by the special structural form of the device.In this paper,the modal analysis and spectrum analysis of the EHV Capacitor device structure were conducted by the software ANSYS.Its first modal frequency is about 1.02Hz.The seismic responses of the structure were analyzed under the gravity action,earthquake action in X/Y direction and wind load in X/Y direction.The main conclusions can be obtained: the values of the maximum stresses of all components are lower than the standard's requirement;the maximum relative deflection of the beam,1/2671,is lower the standard's requirement(1/400);the structural behavior satisfies the requirement of the eight intensity seismic design.
EHV Capacitor device structure is an important component in the electric power system.The structure has high gravity center and low damping ratio,thus its seismic behavior is impacted sensitively by the special structural form of the device.In this paper,the modal analysis and spectrum analysis of the EHV Capacitor device structure were conducted by the software ANSYS.Its first modal frequency is about 1.02Hz.The seismic responses of the structure were analyzed under the gravity action,earthquake action in X/Y direction and wind load in X/Y direction.The main conclusions can be obtained: the values of the maximum stresses of all components are lower than the standard's requirement;the maximum relative deflection of the beam,1/2671,is lower the standard's requirement(1/400);the structural behavior satisfies the requirement of the eight intensity seismic design.
引文
[1]楼梦麟,陈群丽.考虑提离滑移的电压发生器塔架结构地震反应分析[J].地震工程与工程振动,1999,19(1);164-171.
[2]李亚琦,李小军,刘锡荟.电力系统抗震研究概述[J].世界地震工程,2002,18(4):79-84.
[3]杨亚弟,张其浩.FZ-110J型避雷器体系抗震分析[J].地震工程与工程振动,1988,8(2):55-67.
[4]杨亚弟,张其浩.绝缘子拉杆式电气设备的抗震分析[J].世界地震工程,1989,17.30-38.
[5]楼梦麟,李长青.室外冲击电压发生器的抗震性能评价问题的讨论[J].结构工程师,2008,24(4):80-84.
[6]中国国家标准,电力设施抗震设计规范(GB50260-96),1996年,20-21.
[7]王新敏.ANSYS工程结构数值分析[M].北京:人民交通出版社,2007,499-500.
[8]中国国家标准,钢结构设计规范(GB50017-2003),2003年,121.
[2]李亚琦,李小军,刘锡荟.电力系统抗震研究概述[J].世界地震工程,2002,18(4):79-84.
[3]杨亚弟,张其浩.FZ-110J型避雷器体系抗震分析[J].地震工程与工程振动,1988,8(2):55-67.
[4]杨亚弟,张其浩.绝缘子拉杆式电气设备的抗震分析[J].世界地震工程,1989,17.30-38.
[5]楼梦麟,李长青.室外冲击电压发生器的抗震性能评价问题的讨论[J].结构工程师,2008,24(4):80-84.
[6]中国国家标准,电力设施抗震设计规范(GB50260-96),1996年,20-21.
[7]王新敏.ANSYS工程结构数值分析[M].北京:人民交通出版社,2007,499-500.
[8]中国国家标准,钢结构设计规范(GB50017-2003),2003年,121.
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