|本期目录/Table of Contents|

[1]陈树芳,李娟,刘丽梅,等.气瓶腐蚀缺陷应力分析及寿命预测*[J].中国安全生产科学技术,2020,16(5):184-188.[doi:10.11731/j.issn.1673-193x.2020.05.029]
 CHEN Shufang,LI Juan,LIU Limei,et al.Stress analysis and life prediction of gas cylinders with corrosion defect[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(5):184-188.[doi:10.11731/j.issn.1673-193x.2020.05.029]
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气瓶腐蚀缺陷应力分析及寿命预测*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年5期
页码:
184-188
栏目:
职业安全卫生管理与技术
出版日期:
2020-05-30

文章信息/Info

Title:
Stress analysis and life prediction of gas cylinders with corrosion defect
文章编号:
1673-193X(2020)-05-0184-05
作者:
陈树芳李娟刘丽梅缪首龙
(山东特检鲁安工程技术服务有限公司,山东 济南 250010)
Author(s):
CHEN Shufang LI Juan LIU Limei MIAO Shoulong
(Shandong Special Inspection and Testing Group Lu’an Engineering Technology Service Co.,Ltd.,Jinan Shandong 250010,China)
关键词:
车用气瓶应力分析寿命预测有限元
Keywords:
gas cylinder for vehicles stress analysis life prediction finite element
分类号:
X933
DOI:
10.11731/j.issn.1673-193x.2020.05.029
文献标志码:
A
摘要:
为研究气瓶全生命周期腐蚀缺陷与剩余寿命的关系,基于ANSYS建立某型号车用压缩天然气钢瓶有限元模型,分析内腐蚀深度0.1~3.0 mm状态下,气瓶Mises应力分布与应力强度变化规律;根据应力分析,应用局部应力应变理论和修正的MansonCoffin公式进行寿命预测。结果表明:随着气瓶腐蚀缺陷的加深,气瓶额定载荷下的应力分布呈现向缺陷区域集中、应力强度增大的趋势,且腐蚀曲线存在明显拐点;使用应力分析与寿命预测相结合的方法,得出含腐蚀缺陷车用气瓶寿命—腐蚀深度关系曲线,可为气瓶安全使用管理提供参考。
Abstract:
In order to study the relationship between the corrosion defect and the residual life during the full life cycle of gas cylinders,a finite element model of certain type steel CNG cylinder for vehicles was established by using ANSYS software.The change laws of Mises stress distribution and stress intensity of the gas cylinder under the internal corrosion depth from 0.1 mm to 3.0 mm were analyzed.According to the stress analysis,the life prediction was conducted by the local stress and strain theories and the revised MansonCoffin formula.The results showed that with the deepening of corrosion defect in the gas cylinder,the stress distribution of gas cylinder under the rated load presented the tendency to concentrate on the defect area with the increasing stress intensity,and there existed obvious inflection points on the corrosion curve.With the combining methods of stress analysis and life prediction,the lifecorrosion depth curve of gas cylinder for vehicles with corrosion defects was obtained,which can provide reference for the safe use and management of gas cylinders.

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备注/Memo

备注/Memo:
收稿日期: 2019-11-12
* 基金项目: 山东省重点研发计划项目(2018YFJH0204)
作者简介: 陈树芳,硕士,工程师,主要研究方向为特种设备安全管理。
通信作者: 李娟,硕士,高级工程师,主要研究方向为特种设备物联网、大数据。
更新日期/Last Update: 2020-06-10