摘要
柱面气膜密封常因转子系统所形成的振动和位移导致动环与浮环产生碰磨而破裂。为了探索柱面气膜密封新型柔性支承结构,使用SoildWorks软件建立流固耦合模型,应用有限元分析软件ANSYS对T型槽柱面气膜密封结构的气膜流场和柔性支承系统固体场进行流固耦合分析。通过定量分析鼓泡高度、半径及平箔厚度、结构材料等参数对柔性支承结构的影响,选取了合适的柔性支承结构参数,并为支承结构材料选择提供参考。研究结果表明,采用鼓泡型柔性支承结构提高了柱面气膜密封的稳定性,同时也提高了柱面气膜密封对冲击和振动的承受能力。
Cylindrical gas film seals are often broken due to the vibration and displacement of the rotor system that cause the moving ring and the floating ring to collide with each other.In order to explore a new type of flexible support structure for cylindrical gas film sealing,a fluid-solid coupling model was established using SoildWorks software.The finite element analysis software ANSYS is used to perform fluid-solid coupling analysis on the gas film flow field of the T-slot cylindrical gas film seal structure and the solid field of the flexible support system.Through quantitative analysis of the influence of bubble height,radius,thickness of flat foil,structural material and other parameters on the flexible support structure,reasonable parameters of the flexible support structure are selected and provide a reference for the selection of support structure materials.The research results show that the cylindrical air film seal using the bubble-type flexible support structure has better stability,and the bubble-type flexible support structure has better damping capacity,thereby improving the impact and vibration of the cylindrical air film seal capacity.
作者
赵超越
刘美红
孙军锋
韦邱发
许冬伟
Zhao Chaoyue;Liu Meihong;Sun Junfeng;Wei Qiufa;Xu Dongwei(Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming City,Yunnan Province 650500,China)
出处
《农业装备与车辆工程》
2021年第9期32-37,共6页
Agricultural Equipment & Vehicle Engineering
关键词
柱面气膜密封
流固耦合
柔性支承
鼓泡型
有限元分析
cylindrical gas film seal
fluid-solid coupling
flexible support
bubbling
finite element analysis
