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首页> 外文期刊>International Journal of Fluid Power >NUMERICAL AND EXPERIMENTAL STUDY OF HYDROSTATIC DISPLACEMENT MACHINE
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NUMERICAL AND EXPERIMENTAL STUDY OF HYDROSTATIC DISPLACEMENT MACHINE

机译：静压位移机的数值与实验研究

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摘要

This paper presents a simulation tool to determine the structural deflections and corresponding leakage flow in a hydrostatic displacement motor. The simulation tool is applied to a new motor principle that is categorized as an extreme low speed high torque motor with dimensions that calls for attention to the volumetric efficiency. To counteract structural deflections the motor is equipped with compensation pressure volumes that may be used to limit the leakage flow across the end faces of the circular rotor. This leakage flow is investigated by solving Reynolds equation for the pressure distribution across both end faces. The fluid pressure is combined with structural calculations in a fluid structural interaction simulation which evaluates the influence of structural deflections on the gaps and the leakage flow. The numerical work is validated by prototype tests. Both deflections and leakage flows are measured and compared with those from the simulations with good correlation. The deflections, and hence leakage flow, are reduced by the use of compensation pressure volumes, which is validated both numerically and experimentally.
机译：本文介绍了一种用于确定静液压位移电动机中结构变形和相应泄漏流量的仿真工具。该仿真工具应用于一种新的电动机原理，该原理被归类为极低速高扭矩电动机，其尺寸需要引起体积效率的注意。为了抵消结构偏差，电动机配备了补偿压力量，可用于限制穿过圆形转子端面的泄漏流量。通过求解雷诺方程来求解两端面上的压力分布，可以研究这种泄漏流。在流体结构相互作用模拟中，将流体压力与结构计算相结合，以评估结构挠度对间隙和泄漏流的影响。通过原型测试验证了数值工作。测量挠度和泄漏流量，并将其与模拟结果进行比较，并具有良好的相关性。通过补偿压力体积减少了挠度，从而减小了泄漏流量，这在数值和实验上都得到了验证。

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