摘要
针对大流量电液换向阀主阀在冲击载荷作用下的断裂失效问题,对其结构和性能进行了分析,建立了二位三通电液换向阀开闭过程的动态特性数学模型,运用能量法对冲击载荷进行定量分析,应用Ansys软件建立了危险构件的有限元模型,并进行了强度分析,得到了危险构件的应力分布。给出了主阀的断裂失效原因,为优化电液换向阀的设计、提高阀的使用寿命和安全性提供了理论依据。
The deformation failure under the repeated impact load is common in the process of working for Electro-hydraulic Directional Control Valve. The mathematical model for the three-way/two-position electro-hydraulic operated directional valve is obtained and the solid models of valve components are established. Under detrimental working conditions, the static mechanics analysis is conducted for finite element analysis. Afterwards, the valve＇s strength and rigidity are obtained. The effective measures to strengthen the structure and the scheme of structural optimization are proposed.
出处
《北京信息科技大学学报（自然科学版）》
2009年第2期78-81,共4页
Journal of Beijing Information Science and Technology University
基金
北京市教育科技计划项目(KM200910772002)
关键词
电液换向阀
有限元
应力
electro-hydraulic directional control valve
finite element analysis
stress
