调速型液力偶合器叶片流固耦合分析  

Fluid-solid Interaction Analysis for Blade of Variable-speed Hydraulic Coupler

作　　者：邓洪超[1] 王永权 马文星[3] 

机构地区：[1]肇庆学院电子信息与机电工程学院,广东肇庆526061 [2]广西柳工机械股份有限公司,广西柳州545007 [3]吉林大学机械科学与工程学院,吉林长春130022

出　　处：《液压气动与密封》2011年第3期8-12,共5页Hydraulics Pneumatics & Seals

基　　金：863国家高技术研究发展计划项目(2007AA05Z256)

摘　　要：液力偶合器叶片流固耦合分析的目的在于研究液力偶合器叶片变形与流场间相互作用的规律,为液力偶合器叶片设计提供依据。以CFD技术模拟调速型液力偶合器内部流体的流动,分析液力偶合器叶片表面的压力分布;应用有限元方法,计算出液力偶合器叶片的应力分布与位移,对叶片与流体的耦合过程进行数值模拟。分析结果表明,叶片变形导致的压力增大是叶片断裂的主要原因,最大限度地减小叶片变形是提高液力偶合器使用寿命的有效途径。The main aim of the blade fluid-solid interaction analysis of the variable-speed fluid-couplings is to research the regularities of the interaction between the blades deformation and the flow-field in the variable-speed fluid-couplings and to provide design evidence for the variable-speed fluid-couplings.The internal flowing situation of variable-speed fluid-couplings and the pressure distribution of the blades＇ surface was simulated by using the Computational Fluid Dynamic（CFD） technique.The stress distribution and the displacement of the blade was numerically calculated by using the finite element method.The process of the interaction between the blade and the fluid was simulated.The primary cause of the blade fracture is the increscent pressure that caused by the blade deformation.It has been proved by the numerical analysis results.So,one of the effective methods for increasing service life of the variable-speed fluid-couplings is farthest reducing the blades deformation.

关 键 词：液力偶合器 流固耦合 数值模拟 流场 

分 类 号：TH137.331[机械工程—机械制造及自动化]