摘要
基于ANSYS/LS-DYNA非线性动力有限元分析方法,对弹簧式隔爆阀受冲击时阀板与阀座的等效应力、应变进行分析。结果表明:受冲击时,阀板与阀座的等效应力小于材料的许用应力,未发生塑性变形;但阀座由于局部冲击力过大存在应力集中现象,因此设计时应采取措施,避免阀座过早出现疲劳损伤。进行样机隔爆试验,试验结果与ANSYS/LS-DYNA分析结果一致。
Based on ANSYS/LS-DYNA nonlinear dynamic finite element analysis method, the equivalent stress and strain of valve plate and seat was analyzed when the spring loaded explosion-proof valve was impacted. And the results of analysis showed that the equivalent stress and strain of valve plate and seat was less than the allowable stress of material with no plastic deformation. But because of too large local impact force, the valve seat had the stress concentration phenomenon. So some measures should be taken to avoid premature fatigue damage of the valve seat in the design. Then the explosion resistant test of prototype was taken. And the test results was consistent with the analysis results of ANSYS/LS-DYNA.
出处
《重庆理工大学学报（自然科学）》
CAS
2013年第5期36-39,共4页
Journal of Chongqing University of Technology：Natural Science
基金
国家科技重大专项(2011ZX05041-005)
关键词
隔爆阀
冲击强度
有限元分析
explosion-proof valve
impact strength
finite element analysis
作者简介
吴益晓（1984-），男，浙江温州人，工学硕士，主要从事煤矿安全设备研究。
