截止阀波纹管的结构参数对其应力影响分析

Influence Analysis of Globe Valve Bellows Structure Parameters on Stress

选取特定工况下截止阀波纹管建立有限元模型,在有限元结构分析基础上研究波纹管在相同压力载荷和轴向位移载荷下结构尺寸的变化对应力分布的影响规律。研究表明,波纹管在压力载荷和轴向位移载荷下,结构尺寸对应力分布影响较大,并且在不同工况下结构尺寸对波纹管应力分布影响不同,相同载荷下波纹管的不同位置应力分布不同。

The globe valves bellows in specific working condition was selected as the finite element model. On the basis of the finite element structure analysis,the influence of the structure size of the bellows under the same pressure load and axial displacement load on the stress distribution was studied. The research shows that structure size has large impact on stress distribution when the bellows are under pressure load and axial displacement load. The influence of structural size on the stress distribution of bellows under different working conditions is different. And stress distribution of bellows in different positions is different under same load.