排灌机械工程学报Issue(12)：1026-1032,7.DOI:10.3969/j.issn.1674-8530.15.0021
潜水轴流泵结构动应力分析
Structural dynamic stress analysis of submersible axial pump
摘要
Abstract
The rotor component of submersible axial flow pump was calculated under multiple condi-tions using CFX and Workbench software to analyze the stress and strain distribution by the action of fluid force,centrifugal force and gravity.Moreover,the possibility of failure caused by large deforma-tion and insufficient strength was pointed out.The results showed that the radial force was the mini-mum under the standard condition.The direction of axial force in the hub was opposite to that in the impeller.The axial force was increased with the flow rate increasing.The hub could balance the axial force well under the large flow condition.The radial deformation was extremely smaller than the cir-cumferential deformation which was the main deformation in the impeller.This may mean that the torque plays a primary role in the total deformation.The pressure on the suction surface was signifi-cantly lower than that on the pressure surface.Near the inlet side of the hub appeared the high stress area,in which would emerge stress concentration.The main stress was reduced with the flow rate in-creasing.The static structural analysis and strength assessment of the axial pump could reduce the inci-dence of accidents,and provide a powerful reference for axial flow hydraulic design optimization.关键词
潜水轴流泵/径向力/轴向力/应变Key words
submersible axial flow pump/radial force/axial force/strain分类
农业科技引用本文复制引用
张琳,施卫东,张德胜,张俊杰,郭艳磊..潜水轴流泵结构动应力分析[J].排灌机械工程学报,2015,(12):1026-1032,7.基金项目
江苏省“333工程”项目；江苏省产学研联合创新项目（BY2013065－03）；江苏高校科研成果产业化项目 （）
