基于有限元模拟的含缺陷锁斗设备疲劳分析
Fatigue Analysis of Defective Lock Hopper based on Finite Element Simulation
徐娟娟 1梁斌 2李敏 3卢艳玲 1邵世飞1
作者信息
- 1. 南京金创有色金属科技发展有限公司
- 2. 南京市锅炉压力容器检验研究院
- 3. 中国石油化工股份有限公司金陵分公司
- 折叠
摘要
锁斗是典型煤化工装置中关键设备,在长期循环载荷作用下易发生疲劳断裂.运用结构和热应力瞬态分析方法,计算含缺陷锁斗承受的应力幅值.同时基于试验所得疲劳裂纹扩展性能参数,计算预期循环次数下缺陷的扩展量并对最终缺陷尺寸进行安全性评价.评定结果表明含缺陷锁斗可在预期循环次数内正常运行.
Abstract
Lock hopper is a key equipment in typical coal chemical equipment,which is prone to fatigue fracture under long-term cyclic loading.Using structural and thermal stress transient analysis methods,the stress amplitude borne by the defective lock bucket was calculated.At the same time,based on the fatigue crack propagation performance parameters obtained from experiments,the amount of defect propagation under the expected number of cycles was calculated,and the final defect size was evaluated for safety.
关键词
锁斗/瞬态分析/缺陷扩展/安全性评价Key words
Lock hopper/Transient analysis/Defect extension/Safety evaluation引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据