精品文档---下载后可任意编辑600MW 汽轮机转子低周疲劳寿命计算及讨论的开题报告【摘要】本文旨在讨论并计算 600MW 汽轮机转子的低周疲劳寿命,以提高汽轮机的可靠性和安全性
通过对转子应力状态的分析,采纳有限元法建立了转子的有限元模型
在此基础上,利用 Rainflow 法对转子的低周应力数据进行统计,得出转子的低周疲劳寿命
最后,通过对疲劳寿命的分析,提出了进一步完善汽轮机的建议
【关键词】汽轮机;转子;低周疲劳寿命;有限元法;Rainflow 法【Abstract】The purpose of this paper is to study and calculate the low-cycle fatigue life of the 600MW turbine rotor, in order to improve the reliability and safety of the turbine
By analyzing the stress state of the rotor, a finite element model of the rotor is established using the finite element method
On this basis, the Rainflow method is used to statistically analyze the low-cycle stress data of the rotor to obtain the low-cycle fatigue life of the rotor
Finally, through the analysis of the fatigue life, suggestions for further improvements to the steam tur