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[1]何家胜,胡洁文,魏卫,等.天然气平板闸阀的有限元应力分析及结构改进[J].武汉工程大学学报,2013,(10):57-62.[doi:103969/jissn167428692013100012]
　HE Jia\|sheng,HU Jie\|wen,WEI Wei,et al.Stress analysis of finite element and structure amelioration on natural gas plate valve[J].Journal of Wuhan Institute of Technology,2013,(10):57-62.[doi:103969/jissn167428692013100012]
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天然气平板闸阀的有限元应力分析及结构改进(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2013年10期
页码:
57-62
栏目:
机电与信息工程
出版日期:
2013-11-10

文章信息/Info

Title:
Stress analysis of finite element and structure amelioration on natural gas plate valve
文章编号:
16742869(2013)10005706
作者:
何家胜1; 胡洁文1; 魏卫1; 李超1; 王彦馨2; 肖嵩2; 邵小兰2; 聂隆梅2
1.武汉工程大学机电工程学院，湖北 武汉 430074；2.武汉市天然气有限公司，湖北 武汉 430022
Author(s):
HE Jia\|sheng1;  HU Jie\|wen1; WEI Wei1;  LI Chao1;  WANG YAN\|xin2;  XIAO Song2;  SHAO Xiao\|lan2;  NIE Long\|mei2
1.School of Mechanical and Electric Engineering, Wuhan Institute of Technology, Wuhan 430074, China; 2. Wuhan Natural Gas Company Limited, Wuhan 430022, China
关键词:
平板闸阀、有限元法、计算、改进
Keywords:
plate valve;  finite element;  stress amelioration
分类号:
TQ055.8
DOI:
103969/jissn167428692013100012
文献标志码:
A
摘要:
为了研究某闸阀发生开裂事故的原因，利用有限元方法对闸阀结构进行了应力分析.根据闸阀结构二维图纸的相关参数，运用三维建模软件建立闸阀的几何模型；将几何模型导入有限元分析软件ANSYS的仿真平台Workbench，建立闸阀的有限元分析模型；以闸阀的实际工作情况为依据，对闸阀的有限元分析模型施加边界条件，计算出闸阀的应力分布.闸阀的应力分布结果显示，闸阀在其凸台结构处具有应力集中现象且闸阀的最大应力也出现在凸台结构处，易引起闸阀凸台处的开裂.为了缓解闸阀凸台结构处的应力集中现象，对闸阀结构进行改进，去掉闸阀上引起应力集中的凸台结构.改进后的闸阀有限元应力分析表明：其最大应力值比改进前降低了37％左右，能更好地保证闸阀的安全使用.
Abstract:
To explore cracking accident of a plate valve, finite element method was used to analyze the stress of the plate valve structure. Based on the relevant parameters of two\|dimensional drawing of the plate valve, a three dimensional software（Solid Works） was used to establish geometrical model of the plate valve. The geometrical model was then imported in the ANSYS Workbench to establish finite element model. Based on the actual working situations of the plate valve, the loads were exerted on the finite element model to calculate the stress distribution of the plate valve. The results show that both the stress concentration and the maximum of stress value are emerged on the plate valve boss, so the cracking would be caused by the plate valve boss. To relieve the stress concentration, the plate valve was ameliorated by removing the plate valve boss. The finite element analysis of the ameliorated plate valve shows that the maximum stress is lower 37％ than that of the original. Therefore, the ameliorated plate valve can be more secure to be used.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20130917作者简介：何家胜（1958\|），男，湖北武汉人，教授，硕士.研究方向：压力容器结构强度及失效分析.
更新日期/Last Update: 2013-11-11