增加偏心率和泄漏对轴向柱塞泵性能的影响

IF 1.8 4区 工程技术 Q3 ENGINEERING, MECHANICAL
Anurag Pathak, Neeraj Sonkar, Rishabh Gupta, Ankur Miglani, Pavan Kumar Kankar
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引用次数: 0

摘要

轴向柱塞泵(APPs)适用于高压和高效,是液压系统中的流体动力源。由于设计紧凑,各部件之间存在相对运动,因此会造成部件磨损,进而在公差很小的情况下工作的各运动部件之间产生泄漏。由于工作条件恶劣和负载较重,轴向柱塞泵在长时间运行后会同时出现多种故障。泵中的故障会恶化泵的性能并限制泵的工作范围。估算必须考虑随机和不确定的特性,因此很难准确预测磨损情况。有效的诊断可提高泵的可靠性和性能。本文采用一种基于仿真的方法来模拟活塞-气缸布置中的偏心泄漏等故障随着活塞-气缸布置间隙严重程度的增加而产生的影响及其对泵性能的影响。随着活塞与气缸布置之间不同偏心率间隙的增加,泵的出口压力和排量在达到严重程度临界值之前不受影响。进一步增加严重程度后,出口压力和排量会单调降低,并在极端严重的条件下达到饱和状态。随着活塞-气缸布置中偏心严重程度的增加和间隙严重程度的增加,临界阈值会降低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effect of increasing eccentricity and leakage on the performance of an axial piston pump
An Axial Piston Pump (APPs), suitable for high pressure and high efficiency, is used as the source of fluid power in the hydraulic system. Due to the compact design and relative motion between various parts, it causes wear in parts thus leakage introduce between various moving parts which work under tight tolerance. Multiple faults in an axial piston pump occur simultaneously after a long time of operation due to harsh working conditions and heavy loads. Faults in the pump deteriorate the pump’s performance and limit the operating range of the pump. Estimation must account for random and uncertain characteristics, and accurate wear prediction is difficult. Effective diagnosis improves pump dependability and performance. An approach based on simulation is utilized to model the impact of faults like leakage through eccentricity in piston-cylinder arrangement with increasing severity of clearance between piston-cylinder arrangement and its effect on the pump performance. As the clearance with different eccentricity between the piston and cylinder arrangement increases, outlet pressure and discharge of the pump remains unaffected up to a critical value of severity. After further increasing severity, outlet pressure and discharge reduce monotonically and saturate at a single value in extremely severe conditions. With increasing the severity of eccentricity in the piston-cylinder arrangement and increasing the severity of clearance, a critical threshold value shifts to a lower magnitude.
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来源期刊
CiteScore
3.80
自引率
10.00%
发文量
625
审稿时长
4.3 months
期刊介绍: The Journal of Mechanical Engineering Science advances the understanding of both the fundamentals of engineering science and its application to the solution of challenges and problems in engineering.
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