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一、概述在中高压液压系统中,为了使能源的压力基本上保持恒定,广泛地采用先导式溢流阀。因此,溢流阀动态性能的优劣,对于整个液压系统的动特性,有着很大的影响。显然,深入地分析先导式溢流阀的动态性能,并进而预测阀的某些结构参数变化对其动特性的影响,将是人们极感兴趣的一个课题。先导式溢流阀从其工作过程来看,应属非线性元件,但在过去研究它的动态性能时,大多采用线性化的分析方法。试验研究证明,这种方法将引起过大的误差。为此,本文将采用状态空间
First, an overview In the high-pressure hydraulic system, in order to keep the pressure of the energy is basically constant, the pilot-operated relief valve is widely used. Therefore, the advantages and disadvantages of the dynamic properties of the relief valve for the entire hydraulic system has a great impact on the dynamic characteristics. Obviously, in-depth analysis of the dynamic performance of the pilot-operated relief valve, and then predict some of the structural parameters of the valve on the dynamic characteristics of impact, will be of great interest to a subject. Pilot-operated relief valves should be non-linear in terms of their working process, but in the past, the linear analysis method was mostly used when studying its dynamic performance. Experimental studies have shown that this method will cause too much error. To this end, this article will use the state space