• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Pump Users Symposium; 20030317-20030320; Houston,TX; US >SEISMIC ANALYSIS ON MODIFIED SERVICE WATER PUMPS
【24h】

SEISMIC ANALYSIS ON MODIFIED SERVICE WATER PUMPS

机译：修改后的供水泵的地震分析

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

At one nuclear power plant, the original essential service water pumps were replaced by another set of pumps with higher capacity. The latter were transferred from another "idle" nuclear power plant. Due to some important differences between the civil construction and because of seismic spectra being different as well, the pumps required modification and, subsequently, requalification. The structural and seismic qualification was based on a three-dimensional finite element model. Simulations showed that the replacement pumps would suffer from some structural resonances. Several pump components and the interconnections between them were fortified so as to move the potentially hazardous natural frequencies. After having applied the proposed adaptations, the calculated dynamic behavior was checked by means of an experimental modal analysis and by field performance tests. Finally, the replacement pumps including all structural modifications were implemented onsite during the refueling of the plant.
机译：在一个核电厂，原来的基本服务水泵被另一套容量更大的水泵代替。后者是从另一座“空转”核电站转移过来的。由于民用建筑之间存在一些重要差异，并且地震频谱也不同，因此需要对泵进行修改，然后再进行鉴定。结构和地震鉴定是基于三维有限元模型的。仿真表明，替换泵将遭受一些结构共振。加强了几个泵组件及其之间的互连，以移动潜在危险的固有频率。在应用建议的改编之后，通过实验模态分析和现场性能测试来检查计算的动态行为。最终，在工厂加油期间在现场实施了包括所有结构改造的替换泵。

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