国外文献 > 1.轴承 > 1. 基础理论与机制 > 承载与性能
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| 标 题： |
A comprehensive review on advancements in compliant structures of gas foil journal bearings
关于气体箔式滑动轴承柔性结构发展状况的全面综述 |
| 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 [ 承载能力]
STIFFNESS [ 刚度]
PREDICTIONS [ 预测]
IMPROVEMENT [ 改进]
STABILITY [ 稳定性]
COATINGS [ 涂层]
BEHAVIOR [ 行为设计] |
| 出版年： |
2024 |
| 期刊名： |
Proceedings of the Institution of Mechanical Engineers, Part J. Journal of engineering tribology
《机械工程师学会期刊·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）在技术上被广泛认为是先进的轴承类型，并且是高速旋转机械中传统滚动元件轴承和油润滑轴承的理想替代品。GFJB 具有诸多优势，例如降低维护成本、提高效率以及能够在恶劣环境中运行。传统的 GFJB 由以下部分组成：（i）用于产生流体动力压力的光滑顶部箔片，（ii）位于顶部箔片下方的柔性波纹箔片以调整刚度，以及（iii）用于将箔片固定在一起的轴承基座。波纹薄箔片的形状和几何结构主要是为了满足轴承所需的刚度和承载能力。薄箔片的厚度在 100 至 150 微米之间。将柔性薄箔片加工成所需的形状和尺寸是一项极具挑战性的任务。世界各地的工程师和研究人员设计并发表了各种先进的 GFJB 设计结构，以改善其静态和动态特性。波纹或柔性结构是 GFJB 从设计和制造角度来看最重要的组成部分。因此，作者们进行了一个适度的尝试，对公开文献中报道的各种箔式轴套进行了系统性的回顾和报告。该研究涵盖了四个主要类别，这些类别围绕着多年来可变形结构的设计、材料、制造工艺以及涂层展开。通过分析最新的进展，此次回顾旨在确定进一步研究的关键领域，解释技术趋势，并强调箔式轴套在各行业各种高速应用中的关键作用。 |
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