面向多学科交叉的液压滑阀动态数字化建模  

Digital Modeling of Hydraulic Slide Valve Based on Mutildisciplinary

作　　者：吴小锋[1] 干为民[1] 刘春节[1] 胡少刚[1] 王晓军[1] 

机构地区：[1]常州工学院,常州213002

出　　处：《中国机械工程》2015年第6期777-781,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(51305049);江苏省教育厅自然科学基金面上资助项目(13KJD460003)

摘　　要：为了解决工程机械复杂工况下难以准确建立液压滑阀动态模型的问题,提出了面向多学科交叉的液压滑阀数字化建模方法。考虑内部流体动力学对滑阀系统的影响,利用CFD方法对滑阀工作时的内部动态耦合过程进行了解析,分析了滑阀动态工作过程中过流截面面积、流量系数、液动力随阀芯位移的变化规律,并将它们作为滑阀数字化设计系统的边界载荷和输入参数。同时,在流体动力学解析模型的基础上利用AMESim搭建了基于功率键合图的液压滑阀工作模型,对滑阀进行了数字化设计,分析了不同的结构和系统参数设置对滑阀性能的影响。最后,进行了液压滑阀的台架实验,验证了仿真模型的正确性。A digital design method multidisciplinary oriented was put forward herein to build the accurate model of hydraulic valve of engineering machinery which was often under the complex conditions.The compu-tational fluid dynamics（CFD）method was used to analysize dynamic coupling in the slide valve,the change values of flow section,flow coefficient,and dynamic hydraulic force were gotten for the input parameters and boundary load of the digital design system.A power pond graph software AMESim was used to build the dig-ital model of slide valve and analyze the performance by different structures parameters.Finally,a bench ex-periment was built and run to verify the precision of the simulation model.

关 键 词：液压滑阀 数字化设计 动态特性 多学科 

分 类 号：TH137[机械工程—机械制造及自动化]