带偏心载荷和高加速度的滚珠丝杠进给系统的动态建模和摩擦力分析

IF 4.5 1区工程技术 Q1 ENGINEERING, MECHANICAL

Mechanism and Machine Theory Pub Date : 2024-11-22 DOI:10.1016/j.mechmachtheory.2024.105862

Wei Wang , Yanxun Zhou , Yimin Zhang , Hao Lu

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引用次数: 0

摘要

滚珠丝杠进给系统的动态性能受到振动和摩擦的负面影响，而振动和摩擦主要与滚动运动关节的接触特性有关。本研究从阐明摩擦机理入手，建立了进给系统的耦合动态模型。分析了激振力和激振力矩，以研究其对振动特性的贡献。在库仑摩擦和粘性摩擦理论的基础上，提出了粘性摩擦、滑动摩擦和弹性滞后摩擦。根据综合模型的优点，振动响应和摩擦力可通过求解动态方程获得，从而避免了接触载荷和角度的迭代公式。振动测试实验证明了模型的有效性。其中，研究了激振力、进给加速度和偏心距对振动和摩擦特性的影响。此外，该模型还提供了一些抑制振动和摩擦的理论原则。这项研究还有助于提高滚珠丝杠进给系统的性能。

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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Dynamic modeling and friction force analysis of ball screw feed system with eccentric load and high acceleration

Dynamic performance of ball screw feed system is negatively affected by the vibration and friction, which are mainly related to the contact characteristics of rolling kinematic joints. In this study, starting from clarifying the friction mechanism, a coupling dynamic model of a feed system was developed. The excitation forces and moments are analyzed to investigate the contribution to the vibration characteristics. Based on the coulomb and viscous friction theories, the viscous friction, sliding friction and elastic hysteresis friction are formulated. According to the benefits of the comprehensive model, the vibration responses and friction forces can be obtained by solving the dynamic equations, which avoids the iterative formula of contact loads and angles. Vibration testing experiment is performed to prove the validity. In particular, the effects of excitation force, feeding acceleration and eccentric distance on the vibration and friction characteristics are investigated. Furthermore, the model can supply some theoretical principles to suppress vibration and friction. The study also helps to improve the performance of a ball screw feed system.

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来源期刊

Mechanism and Machine Theory 工程技术-工程：机械

CiteScore

9.90

自引率

23.10%

发文量

450

审稿时长

20 days

期刊介绍： Mechanism and Machine Theory provides a medium of communication between engineers and scientists engaged in research and development within the fields of knowledge embraced by IFToMM, the International Federation for the Promotion of Mechanism and Machine Science, therefore affiliated with IFToMM as its official research journal. The main topics are: Design Theory and Methodology; Haptics and Human-Machine-Interfaces; Robotics, Mechatronics and Micro-Machines; Mechanisms, Mechanical Transmissions and Machines; Kinematics, Dynamics, and Control of Mechanical Systems; Applications to Bioengineering and Molecular Chemistry