• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Forum on Electrical Engineering and Automation >Impact Fatigue Life Assessment of Steam Pipeline Based on Transient Analysis
【24h】

Impact Fatigue Life Assessment of Steam Pipeline Based on Transient Analysis

机译：基于瞬态分析的蒸汽管道影响疲劳寿命评估

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

摘要

Fatigue life of high energy steam pipelines under shock loads is estimated based on static load, modal and transient response analysis. The time domain stress curve of pipelines under shock is obtained as the stress spectrum input for pipeline fatigue life prediction. The nCode fatigue analysis software is employed in the study cooperated with the impact fatigue damage model. The results show that the pipeline will experience multiple stress cycles under one impact load, and the maximum stress value exceeds 11% of the yield limit of the material. The impact fatigue life of the pipeline under transverse impact is 1.16×105times. The maximum stress response of the pipe occurs after the forward triangular wave of the impact input and within the reverse triangular wave. The fixed end, elbow and tee of the pipeline are the stress concentration areas of the steam pipelines with the fatigue life of about 4×104times.
机译：基于静载荷，模态和瞬态响应分析，估计了休克负荷下的高能蒸汽管道的疲劳寿命。作为管道疲劳寿命预测的应力谱输入，获得了冲击下管道的时域应力曲线。利用影响疲劳损伤模型的研究采用NCode疲劳分析软件。结果表明，管道将在一个冲击载荷下经历多个应力循环，最大应力值超过材料产量极限的11％。横向冲击下管道的影响疲劳寿命为1.16×10 5 时代。管道的最大应力响应发生在冲击输入的正向三角波和反向三角波内。管道的固定端，弯头和发球台是蒸汽管道的应力集中区域，疲劳寿命约为4×10 4 时代。

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