摘要
为了降低滑阀开启和关闭过程中瞬态液动力的影响,提高液压滑阀换向稳定性和可靠性,以典型的三位四通换向滑阀为对象,利用计算流体动力学方法(CFD)对滑阀开启过程进行了动态模拟,可视化地解析了流道结构参数对瞬态液动力的影响.针对滑阀阀芯、阀座沉槽、阀芯间流道结构,建立了参数化模型,借助于CFD解析、试验设计、近似模型技术,对滑阀动态解析过程进行了一体化集成,并以二阶响应面函数的形式表达了开启瞬间瞬态液动力与流道结构参数之间的响应面模型.最后,对流道结构参数进行了优化设计,为提高滑阀性能提供了定量化再设计依据.
Hydraulic slide valve is a typical flow control device and its stability and reliability are the criterion when judging the performance of a slide valve.A new integration process was put forward to meet such desired need in slide valve that is characterized by the complex configuration.First,the objective was identified according to the performance improvement.Second,the initial model of model was made,and then the initial CFD analysis was carried out to predict the performance of the valve.Third,the response surface fuction of transient hydrodynamic force was acquired based on parametric modeling,CFD analysis,design of experimental and approximation model technology.Finally,the new structure size of flow channel was obtained by optimization which was made based on response surface model.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2010年第12期1767-1772,共6页
Journal of Shanghai Jiaotong University
基金
国家科技支撑计划资助项目(2007BAF10B00)
关键词
瞬态液动力
计算流体动力学
一体化
响应面
再设计
transient hydrodynamic force
compute fluid dynamic（CFD）
integration
response surface model
re-design
