基于流量计算法的抗流量饱和研究

发布时间：2018-01-12 01:29

本文关键词：基于流量计算法的抗流量饱和研究　出处：《液压与气动》2017年09期 　论文类型：期刊论文

更多相关文章： 负载敏感系统 抗流量饱和 仿真 AMESim

【摘要】：阀前补偿负载敏感系统在流量饱和状态下,无法按各执行机构多路阀节流阀口开度成比例的分配流量,进而严重影响执行机构复合动作协调性,基于此,提出了一种基于流量计算的方法,用于实现系统的抗流量饱和。在此基础上,建立了抗流量饱和AMESim模型,并进行仿真研究。结果表明,阀前补偿负载敏感系统采用流量计算法后,在流量饱和时能按各执行机构多路阀节流阀口开度之比进行流量分配,保证了复合动作的协调性,为解决实际阀前补偿负载敏感系统的流量饱和问题提供理论参考。
[Abstract]:In the condition of flow saturation, the load sensitive system in front of the valve can not distribute the flow according to the opening degree of the throttle valve of the multi-way valve, which seriously affects the coordination of the compound action of the actuator. In this paper, a method based on flow calculation is proposed, which is used to realize the anti-flow saturation of the system. On this basis, the anti-flow saturation AMESim model is established, and the simulation results show that. After adopting the flow calculation method in the front compensation load sensitive system, the flow distribution can be carried out according to the ratio of the throttle opening of various actuators when the flow is saturated, which ensures the coordination of the compound action. It provides a theoretical reference for solving the problem of flow saturation of load sensitive system in front of valve compensation.
【作者单位】：安徽工业大学机械工程学院;国家机床产品质量监督检验中心(安徽);
【基金】：国家科技支撑计划(2015BAK06B02-2) 安徽高校自然科学研究重点项目(KJ2015A086,KJ2017A058)
【分类号】：TH137
【正文快照】： 引言负载敏感系统以其能耗小、负载流量仅与多路阀节流阀口开度有关、控制精确[1]等优点被广泛用于工程机械中[2-3]。可分为阀前补偿、阀后补偿和回油路补偿三种形式[4]。当各执行机构所需流量之和大于泵的最大流量,即达到流量饱和状态时,阀后补偿和回油路补偿负载敏感系统也

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