摘要
液压系统压力脉冲模拟器是一个分布参数的复杂非线性系统,要产生符合规范的压力脉冲波形难度很大。针对这一问题,应用AMESim软件建立了液压系统压力脉冲模拟器的仿真模型,进行脉冲波形的仿真计算。分别研究油液体积弹性模量、油液黏度、蓄能器容腔大小和换向阀通流能力等参数对波形的影响。仿真和分析表明:压力脉冲的形成与多种因素有关,在系统设计中必须根据被试件特性和压力波形参数对管路的配置和阀件的动态特性等进行优化设计。
Pressure impulse simulator for hydraulic system has the characteristic of distributing parameter and non-liner system. It is difficulty for pressure impulse simulator to generate standard pressure impulse waveform. To solve this problem, a model of a pres- sure impulse simulator for hydraulic system was built and simulated using AMESim. The effects of important parameters, which were oil bulk modulus, oil viscosity, cavity of hydraulic accumulator and through-flow capacity of directional valve, were discussed. The results demonstrate that pressure impulse waveform is affected by various elements. Standard pressure impulse waveform can be generated by optimal design of pipeline configuration and dynamic characteristics of valve according to the characteristics of test parts and parameters of pressure impulse waveform.
出处
《机床与液压》
北大核心
2011年第13期106-109,共4页
Machine Tool & Hydraulics
关键词
水锤波
压力脉冲
可靠性
液压系统
Water hammer wave
Pressure impulse
Reliability
Hydraulic system