• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Symposium on Impact Engineering >Experimental Evaluation of Dynamic Buckling Load of GFRP rod for Gas Circuit Breaker
【24h】

Experimental Evaluation of Dynamic Buckling Load of GFRP rod for Gas Circuit Breaker

机译：气体断路器GFRP棒动态屈曲负荷的实验评价

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Dynamic elastic buckling behaviors of GFRP and Aluminum rods were experimentally investigated. In a gas circuit breaker of an electric power substation, an operating rod consisting of insulating materials is connected to an interrupter. The rod securely insulate between the interrupter and an operating mechanism. The rod is configured with a slender rod made of Glass Fiber Reinforced Plastics (GFRP). When the gas circuit breaker ends the opening operation, impulsive compression load acts on the GFRP rod. To develop a smaller and lighter GFRP rod, dynamic buckling loads of the rod must be studied. In this study, dynamic elastic buckling loads for slender GFRP and aluminum rods were investigated by an experimental method. The drop weight impact tests of the GFRP rods and aluminum rods were employed. In the testing device, a special load cell called the "Load Sensing Block" was used to measure the dynamic load of long time duration. Slender GFRP rods with various lengths were axially loaded at the impact velocities ranging from 0.75m/s to 4.5m/s. From the experimental results, an empirical criterion for the dynamic buckling load of the GFRP rod was proposed in terms of the impact velocity and the slenderness ratio. Furthermore, results showed the proposed criterion could successfully describe the buckling behavior of not only the GFRP rod but also the aluminum rod.
机译：实验研究了GFRP和铝棒的动态弹性屈曲行为。在电力变电站的气体断路器中，由绝缘材料组成的操作杆连接到中断器。杆牢固地隔离断路器和操作机构之间。杆配置有由玻璃纤维增​​强塑料（GFRP）制成的细长杆。当气体断路器结束开口操作时，冲动的压缩负载在GFRP杆上作用。为了开发较小的GFRP杆，必须研究杆的动态屈曲负载。在该研究中，通过实验方法研究了用于细长GFRP和铝棒的动态弹性屈曲载荷。采用GFRP棒和铝棒的掉落重量冲击试验。在测试设备中，使用称为“负载感测块”的特殊负载单元来测量长时间持续时间的动态负载。具有各种长度的细长GFRP杆在0.75m / s至4.5m / s的冲击速度下轴向装载。从实验结果中，在冲击速度和细长比方面提出了GFRP棒的动态屈曲负荷的经验标准。此外，结果显示了所提出的标准，可以成功地描述不仅是GFRP棒的屈曲行为，还可以成功地描述铝棒。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号