摘要
建立了锥型溢流阀的溢流流量模型,建立了包含瞬态液动力和稳态液动力的溢流阀动态特性模型。基于此,利用Routh-Hurmitz方法推导出了锥阀系统的溢流稳定条件。通过实验对比研究验证了所建模型的正确性。分析了锥型溢流阀的设计参数对阀系统动态特性的影响,并用灵敏度分析获得了影响最显著的参数是液流控制体的直径D。结果表明:所建立的模型可以很大程度地捕捉溢流系统的真实动态特性,所建立的稳定判定条件可以作为设计阀的有利依据。
The overflow rate of poppet relief valve is established,and the dynamics characteristics of poppet relief valve which contains transient flow force and steady flow force are established.Based on this point,the stability conditions of poppet relief valve system was derived using Routh-Hurmitz method.The correctness was verified through comparative study in experiment.The effect of the design parameters of relief valve on the dynamic characteristics of poppet valve system was analyzed.Using sensitivity analysis the effects of parameters of the most significant was obtained,that is Liquid flow control body diameter D.The results show that,the established model can largely capture the real dynamic characteristics of the relief valve system,and the established stability condition can be used as a favorable basis for the design of valve.
作者
王慧
贾文华
朱艳茹
孙畅励
王超
WANG Hui;JIA Wenhua;ZHU Yanru;SUN Changli;WANG Chao(School of Mechanical Engineering,Nanjing Institute of Technology,Nanjing Jiangsu 211167,China)
出处
《机床与液压》
北大核心
2019年第13期144-147,共4页
Machine Tool & Hydraulics
基金
南京工程学院校级科研基金项目(QKJ201701)
江苏省政策引导类计划(软科学研究)项目(BR2017059)
教育部人文社会科学研究青年基金项目(17YJCZH083)
关键词
溢流稳定条件
流量模型
劳斯矩阵
灵敏度分析
Overflow stability condition
Flow model
Routh matrix
Sensitivity analysis
