平面径向载荷深沟球轴承的增强建模与光滑接触公式

IF 2.6 2区 工程技术 Q2 MECHANICS
Raúl Gismeros Moreno, Filipe Marques, Eduardo Corral Abad, Jesús Meneses Alonso, Paulo Flores, Cristina Castejon
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引用次数: 0

摘要

轴承是一种机械部件,用于限制运动部件之间的相对旋转运动,并以低摩擦传递载荷。它们的性能直接影响到各种机械的耐用性、效率和可靠性。因此,轴承故障可能导致经济成本,维修/停机时间,事故和法规遵从性问题。在工业4.0的背景下,开发用于模拟轴承动态的详细可靠的计算模型对于建立数字孪生和实施先进的预测性维护策略至关重要。这项工作的重点是在多体系统动力学框架下对径向载荷深沟球轴承进行建模,轴承的组件(内圈和外圈,滚动元件和保持架)被视为单独的体。平滑接触方法用于表征接触/冲击现象,为监测整个接触事件提供灵活性和效率。在这个意义上,合适的法向和摩擦接触力模型被用来描述接触体之间的相互作用。这项工作的主要贡献依赖于表示笼/滚动单元相互作用的建模策略。考虑到这一点,考虑不同的建模假设,开发了几种径向载荷深沟球轴承的多体模型,从而进行了不同复杂程度的动态分析。描述了潜在的简化,并讨论了它们的主要优点和缺点。仿真结果表明,正确选择建模参数对仿真效果有重要影响。本研究的有希望的结果为未来的研究铺平了道路,扩展到其他几何形状的滚动接触轴承和工作条件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Enhanced modelling of planar radial-loaded deep groove ball bearings with smooth-contact formulation

Enhanced modelling of planar radial-loaded deep groove ball bearings with smooth-contact formulation

Bearings are mechanical components designed to restrict the relative rotary motion between moving parts and transmit loads with low friction. Their performance directly impacts the durability, efficiency and reliability of various machinery. Therefore, bearing failures can lead to economic costs, repair/stoppage times, accidents and regulatory compliance issues. In the context of Industry 4.0, the development of detailed and reliable computational models for simulating bearings’ dynamics plays a crucial role in establishing digital twins and implementing advanced predictive maintenance strategies.

This work focuses on modelling radial-loaded deep groove ball bearings under the multibody systems dynamics framework and the components of the bearing (inner and outer rings, rolling elements, and cage) are treated as separate bodies. A smooth contact approach is utilised to characterise the contact/impact phenomena, providing flexibility and efficiency in monitoring the whole contact event. In this sense, suitable normal and friction contact force models are used to describe those interactions between the contacting bodies. The main contribution of this work relies on the modelling strategies to represent the cage/rolling element interaction.

Having that in mind, several multibody models of radial-loaded deep groove ball bearings are developed considering different modelling assumptions, resulting in dynamic analyses with various levels of complexity. The underlying simplifications are described, and their main advantages and shortcomings are discussed. The simulation results demonstrated the significant impact of accurately selecting the modelling parameters. The promising results of this study pave the way for future investigations, extending to other geometries of rolling contact bearings and working conditions.

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来源期刊
CiteScore
6.00
自引率
17.60%
发文量
46
审稿时长
12 months
期刊介绍: The journal Multibody System Dynamics treats theoretical and computational methods in rigid and flexible multibody systems, their application, and the experimental procedures used to validate the theoretical foundations. The research reported addresses computational and experimental aspects and their application to classical and emerging fields in science and technology. Both development and application aspects of multibody dynamics are relevant, in particular in the fields of control, optimization, real-time simulation, parallel computation, workspace and path planning, reliability, and durability. The journal also publishes articles covering application fields such as vehicle dynamics, aerospace technology, robotics and mechatronics, machine dynamics, crashworthiness, biomechanics, artificial intelligence, and system identification if they involve or contribute to the field of Multibody System Dynamics.
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