隔振(震)技术在电力设施中的应用及前景
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摘要
以隔振技术在某机械旋转振动控制的工程应用为例,根据隔振器设置原则确定了隔振(震)器的刚度、阻尼以及几何尺寸,通过自主编写的程序对安装了弹簧阻尼隔振(震)器的系统进行了最大振动线位移和隔振(震)效率的计算。最后,对隔振(震)技术在汽轮发电机组基础和变电站设施中的应用进行了展望。
Except enhancing traditional anti-seismic design,it is necessary to enhance development and application of power equipment vibration isolation techniques. Taking an engineering practice in which the technique is used for a certain machine rotation vibration control as an example,the vibration isolator stiffness,damping and geometric size are decided based on isolator configuration principles. The maximum vibration linear displacement and isolation efficiency of spring-damping vibration isolation system are calculated by the self-composed program. Finally,the paper gives a forecast of its application in turbine-generator foundation and substation.
Except enhancing traditional anti-seismic design,it is necessary to enhance development and application of power equipment vibration isolation techniques. Taking an engineering practice in which the technique is used for a certain machine rotation vibration control as an example,the vibration isolator stiffness,damping and geometric size are decided based on isolator configuration principles. The maximum vibration linear displacement and isolation efficiency of spring-damping vibration isolation system are calculated by the self-composed program. Finally,the paper gives a forecast of its application in turbine-generator foundation and substation.
引文
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[2]杨亚弟,李桂荣.电气设施抗震研究概述[J].世界地震工程,1996(2):20-22,54.
[3]李宏男,石文龙,贾连光.考虑导线影响的输电塔侧向简化抗震计算方法[J].振动工程学报,2003,16(2):234-237.
[4]谢强.电力系统的地震灾害研究现状与应急响应[J].电力建设,2008,29(8):1-5
[5]赵成刚,冯启民.生命线地震工程[M].北京:地震出版社,1994.
[6]杨亚弟,张其浩,苏文藻,等.FZ-110J型避雷器体系抗震分析[J].地震工程与工程振动,1988(2):57-69.
[7]连晋华.隔振(震)设计中的几个问题,太重技术导报,1995,1:18-22.
[8]成大先.机械设计手册-机械振动机架设计[M].化学工业出版社,2004.
[9]董伟民,周书瑞.少油断路器及其减震体系得抗震研究[J].电力建设,1982(1):1-3.
[10]周福霖.工程结构减震控制[M].北京:地震出版社,1997:11-19.
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