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首页> 外文会议>International Fluid Power Conference Dresden >Improving the Performance of an Electro-Hydraulic Load-Sensing Proportional Control Valve
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Improving the Performance of an Electro-Hydraulic Load-Sensing Proportional Control Valve

机译：提高电液负荷测量比例控制阀的性能

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The paper deals with the simulation and the experimental verification of the hydraulic behavior of an electro-hydraulic load-sensing proportional control valve. An innovative CAE methodology, developed combining CFD simulations with lumped and distributed numerical modeling, is firstly introduced and tailored by comparing the numerical results with measurements coming from an experimental' campaign performed for a wide range of pressure loads and metered flow rates. Then, both the reliability and the limits of the numerical approach are highlighted through a detailed numerical vs. experimental comparison, involving the pressure of the main hydraulic lines, the flow rate through the first section and the local compensator displacement. Finally, the CAE methodology has been applied for assessing the internal ducts hydraulic permeability and the local compensator spring pre-load influence on the control valve metering curves. At the end of this analysis, an optimized design configuration, featuring a maximum controlled volumetric flow rate increased of more than 25%, has been proposed.
机译：本文涉及电动液压荷载比例控制阀的液压行为的仿真和实验验证。通过比较来自针对广泛压力负荷和计量流速的实验性的运动的测量结果，首先引入和量身定制了一种创新的CCD模拟和分布式数值建模的CFD模拟。然后，通过详细的数值与实验比较突出显示数值方法的可靠性和限制，涉及主液压管线的压力，通过第一部分和局部补偿器位移的流速。最后，已经应用CAE方法来评估内部管道液压渗透率和局部补偿器弹簧预载物对控制阀计量曲线的影响。在该分析结束时，已经提出了优化的设计配置，其具有超过25％的最大控制体积流量的设计。

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