国外文献 > 1.轴承 > 1. 基础理论与机制 > 动力学与稳定性
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| 标 题： |
A comprehensive review on advancements in compliant structures of gas foil journal bearings
关于气体箔滑动轴承柔性结构进展的综述 |
| 作 者： |
Priyadarshini, Srusti
Behera, Suraj K. |
| 关键词： |
Gas foil bearings [气体箔轴承]
thin foils [ 薄箔]
design [ 设计]
complaint structure [ 投诉结构]
HIGH-SPEED [ 高速]
STATIC PERFORMANCE [ 静态性能]
LOAD-CAPACITY [ 负载容量]
STIFFNESS [ 刚性]
PREDICTIONS [ 预测]
IMPROVEMENT [ 改进]
STABILITY [ 稳定性]
COATINGS [ 涂层]
BEHAVIOR [ 行为]
DESIGN [ 设计] |
| 出版年： |
2024 |
| 期刊名： |
Proceedings of the Institution of Mechanical Engineers, Part J. Journal of engineering tribology
机械工程师学会会刊，J部分。工程摩擦学杂志 |
| 年卷期： |
2024, vol.238, no.9 |
| 摘 要： |
Gas foil journal bearings (GFJBs) are widely considered technically advanced bearings and a viable alternative to conventional rolling element and oil-lubricated bearings in high-speed rotating machinery. GFJBs offer advantages such as reduced maintenance, improved efficiency, and the ability to operate in challenging environments. A traditional GFJB consists of (i) a smooth top foil for the generation of hydrodynamic pressure, (ii) a compliant corrugated foil beneath the top foil for tailoring stiffness, and (iii) a bearing base to hold the foils together. The shape and geometry of corrugated thin foil are primarily designed for the essential stiffness and load-carrying capacity of the bearings. The thickness of thin foils is in the range of 100-150 mu m. The fabrication of complaint thin foils to their desired shapes and sizes is quite challenging. Engineers and researchers around the world have designed and published various advanced design structures of GFJBs to improve their static and dynamic characteristics. The corrugated or compliant structure is the most significant component of GFJBs from design and fabrication point of view. Therefore, a modest attempt is made by the authors to review and report systematically on various foil journal bearings reported in open literature. The study covers four primary categories, which are centered around the design of compliant structures, materials, manufacturing processes, and coatings over the years. By analyzing the state-of-the-art advancements, this review aims to identify key areas for further research, explain technological trends, and underline the pivotal role of GFJBs in various high-speed applications across industries.
气体箔式滚动轴承（GFJB）被广泛认为是一种技术先进的轴承，是高速旋转机械中传统滚子轴承和油润滑轴承的可行替代方案。GFJB具有维护成本低、效率高以及可在恶劣环境中运行等优点。传统的GFJB由以下三部分组成：(i) 用于产生水动力压力的光滑顶箔； (ii) 位于顶箔下方的柔性波纹箔，用于调节刚度； (iii) 用于固定各箔片的轴承基座。波纹薄箔的形状和几何结构主要设计用于满足轴承的基本刚度和承载能力要求。薄箔的厚度通常在100至150微米之间。制造出符合所需形状和尺寸的柔性薄箔极具挑战性。全球的工程师和研究人员已设计并发表了多种先进的GFJB结构，以改善其静态和动态性能。从设计和制造角度来看，波纹或柔性结构是GFJB最重要的组成部分。因此，作者们尝试对公开文献中报道的各种箔片轴承进行系统性的综述与报告。本研究涵盖四个主要类别，分别围绕多年来柔性结构、材料、制造工艺和涂层的设计展开。通过分析当前的最新进展，本文旨在识别未来进一步研究的关键领域，阐明技术发展趋势，并强调GFJB在各行业各类高速应用中的关键作用。 |
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