中国石油大学学报（自然科学版）2016，Vol.40Issue(5)：142-150,9.DOI:10.3969/j.issn.1673-5005.2016.05.018
RMG530减压阀随机振动疲劳分析
Random vibration fatigue analysis of flow control valve RMG 530
摘要
Abstract
In order to assess the safety and reliability of the value body under random vibration loading, the model of valve and gas in the valve was established using element analysis software Workbench. Firstly, the stress response power spectral density was obtained by the flow control valve vibration response analysis based on the field test of random vibration load. Ac-cording to the modified S-N curve of the flow control valve material, finite element fatigue analysis software NCode was used to analyze the random vibration fatigue of the reducing valve by the method of time domain and frequency domain. The results show that the minimum fatigue life point under random vibration loading is at the corner between the inlet section and the valve seat with the minimum calculated fatigue life of 41. 79 years in time domain and with the minimum calculated fatigue life of 38. 81 years in frequency domain.关键词
减压阀/随机振动/时域/频域/疲劳寿命Key words
flow control valve/random vibration/time domain/frequency domain/fatigue life分类
能源科技引用本文复制引用
李玉坤,尤泽广,陈晓红,吴中林..RMG530减压阀随机振动疲劳分析[J].中国石油大学学报（自然科学版）,2016,40(5):142-150,9.基金项目
中石油北京天然气管道有限公司科研项目(KY-KJ-13-053) （KY-KJ-13-053）
