Influence of the Hydraulic Circuit Setup on the Dynamic Performance of an Axial Piston Pump by Numerical and Experimental Analysis

4区工程技术 Q1 Mathematics

Mathematical Problems in Engineering Pub Date : 2024-04-18 DOI:10.1155/2024/2966138

Ala Eddin Chakroun, Mattia Battarra, Emiliano Mucchi

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引用次数: 0

Abstract

The hydraulic circuit in hydraulic mechanisms may be the cause of several vibration anomalies. Flexible pipes, in particular, commonly used in test rigs, may be the source of vibration issues due to their relatively low natural frequencies altering the pump noise, vibration, and harshness (NVH) performance. The purpose of this study is to detail a methodology based on lumped parameter modeling and experiments to analyze the circuit NVH behavior. An experimental study is carried out on two pump designs to determine the outlet pressure fluctuation of various test rig configurations. Numerical simulations are also performed to simulate the actual behavior of the hydraulic system considering these different test configurations. The tests are carried out at a chosen frequency range with a hydraulic circuit configuration representing realistic layouts. In these situations, the hydraulic circuit layout can be the source of NVH anomalies. Realistic design solutions are proposed to modify the test rig NVH behavior in order to achieve a flat response throughout the desired working range.

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通过数值和实验分析液压回路设置对轴向活塞泵动态性能的影响

液压机构中的液压回路可能是造成多种振动异常的原因。特别是试验台中常用的柔性管道，由于其固有频率相对较低，可能成为振动问题的根源，从而改变泵的噪声、振动和声振粗糙度（NVH）性能。本研究的目的是详细介绍一种基于整块参数建模和实验的方法，用于分析电路的 NVH 行为。对两种泵的设计进行了实验研究，以确定各种试验台配置的出口压力波动。同时还进行了数值模拟，以模拟液压系统在这些不同测试配置下的实际行为。测试在选定的频率范围内进行，液压回路配置代表实际布局。在这些情况下，液压回路布局可能是 NVH 异常的根源。我们提出了切合实际的设计方案，以修改试验台的 NVH 性能，从而在整个所需的工作范围内实现平坦的响应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mathematical Problems in Engineering 工程技术-工程：综合

CiteScore

4.00

自引率

0.00%

发文量

2853

审稿时长

4.2 months

期刊介绍： Mathematical Problems in Engineering is a broad-based journal which publishes articles of interest in all engineering disciplines. Mathematical Problems in Engineering publishes results of rigorous engineering research carried out using mathematical tools. Contributions containing formulations or results related to applications are also encouraged. The primary aim of Mathematical Problems in Engineering is rapid publication and dissemination of important mathematical work which has relevance to engineering. All areas of engineering are within the scope of the journal. In particular, aerospace engineering, bioengineering, chemical engineering, computer engineering, electrical engineering, industrial engineering and manufacturing systems, and mechanical engineering are of interest. Mathematical work of interest includes, but is not limited to, ordinary and partial differential equations, stochastic processes, calculus of variations, and nonlinear analysis.