时变力矩条件下 CMGB 动态特性与摩擦力矩波动关系研究

IF 3.1 3区工程技术 Q2 ENGINEERING, MECHANICAL

Lubricants Pub Date : 2023-12-11 DOI:10.3390/lubricants11120525

Wenhu Zhang, Shili Li, Gang Zhou, Ningning Zhou, Yan Zhao, Wanjia Li

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引用次数: 0

摘要

本文建立了控制力矩陀螺仪轴承（CMGB）在时变力矩条件下的动态仿真分析模型。分析了力矩响应时间、轴向预紧力和工作温度对 CMGB 动态特性和摩擦力矩的影响，并进行了相关验证试验。结果表明，CMGB 的摩擦力矩波动与动态特性直接对应。时变力矩的响应时间越快，CMGB 的摩擦力矩波动越大。预紧力越大，球的加载状态差异就越小，这也是摩擦力矩波动减小的真正原因。此外，随着工作温度的升高，CMGB 的摩擦力矩波动也会减小。

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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Research on the Relationship between Dynamic Characteristics and Friction Torque Fluctuation of CMGB under the Condition of Time-Varying Moment

In this paper, a dynamic simulation analysis model was established for CMGB (control moment gyroscope bearing) under the conditions of time-varying moment. The influences of the moment’s response time, axial preload, and working temperature on the dynamic characteristics and friction torque of CMGB were analyzed, and the relevant verification tests were conducted. The results show that the friction torque fluctuation of CMGB directly corresponds to the dynamic characteristics. The faster the response time of the time-varying moment, the larger the friction torque fluctuation of CMGB. The larger preload minimizes the difference in the ball’s loading state, which is the actual reason for reducing the friction torque fluctuation. Moreover, as the working temperature increases, the friction torque fluctuation of CMGB decreases.

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来源期刊

Lubricants Engineering-Mechanical Engineering

CiteScore

3.60

自引率

25.70%

发文量

293

审稿时长

11 weeks

期刊介绍： This journal is dedicated to the field of Tribology and closely related disciplines. This includes the fundamentals of the following topics: -Lubrication, comprising hydrostatics, hydrodynamics, elastohydrodynamics, mixed and boundary regimes of lubrication -Friction, comprising viscous shear, Newtonian and non-Newtonian traction, boundary friction -Wear, including adhesion, abrasion, tribo-corrosion, scuffing and scoring -Cavitation and erosion -Sub-surface stressing, fatigue spalling, pitting, micro-pitting -Contact Mechanics: elasticity, elasto-plasticity, adhesion, viscoelasticity, poroelasticity, coatings and solid lubricants, layered bonded and unbonded solids -Surface Science: topography, tribo-film formation, lubricant–surface combination, surface texturing, micro-hydrodynamics, micro-elastohydrodynamics -Rheology: Newtonian, non-Newtonian fluids, dilatants, pseudo-plastics, thixotropy, shear thinning -Physical chemistry of lubricants, boundary active species, adsorption, bonding