Meshing impact analysis of the gear and rack of the pumping machine based on the SPH–FEM coupling method

IF 1.9 4区工程技术 Q3 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers Part K-Journal of Multi-Body Dynamics Pub Date : 2023-06-20 DOI:10.1177/14644193231180685

Fankai Di, Mutellip Ahmat, Duanzheng Li, Huafeng Zhou

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引用次数: 0

Abstract

This paper explores the feasibility of using the coupled smooth particle hydrodynamics–finite element method (SPH–FEM) to study the gear rack and meshing impact problem. Firstly, a numerical model containing both SPH and FEM units is established, and its accuracy is verified. Then, the principle of gear rack meshing impact is analyzed from the perspective of impact dynamics theory, and the formula of maximum meshing impact force is derived. Finally, the meshing impact process of the rack and pinion is simulated using the coupled SPH–FEM method, and experiments are designed to verify it. The analysis results show that the SPH–FEM coupling method can simulate the meshing impact behavior of the gear mechanism more accurately. On the other hand, the severity of the impact in each operating section was obtained. It is also found that the impact stress has reached the material's tensile limit, revealing the mechanism of tooth surface wear caused by the impact. The results of the study provide a choice of research methods for gear mechanism meshing impact and also provide some reference for gear rack tooth shape optimization.

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基于SPH-FEM耦合法的抽油机齿轮齿条啮合冲击分析

本文探讨了采用光滑颗粒流体力学-有限元耦合方法研究齿轮齿条与啮合碰撞问题的可行性。首先，建立了包含SPH和FEM单元的数值模型，并对其精度进行了验证。然后，从冲击动力学理论的角度分析了齿轮齿条啮合冲击的原理，推导出最大啮合冲击力的计算公式;最后，采用SPH-FEM耦合方法对齿轮齿条的啮合冲击过程进行了仿真，并设计了实验进行验证。分析结果表明，SPH-FEM耦合方法能较准确地模拟齿轮机构的啮合冲击行为。另一方面，得到了各手术部位的冲击程度。同时发现，冲击应力已达到材料的拉伸极限，揭示了冲击引起齿面磨损的机理。研究结果为齿轮机构的啮合影响提供了研究方法的选择，也为齿轮齿条齿形优化提供了一定的参考。

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

Proceedings of the Institution of Mechanical Engineers Part K-Journal of Multi-Body Dynamics 工程技术-工程：机械

CiteScore

4.10

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Multi-body Dynamics is a multi-disciplinary forum covering all aspects of mechanical design and dynamic analysis of multi-body systems. It is essential reading for academic and industrial research and development departments active in the mechanical design, monitoring and dynamic analysis of multi-body systems.