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 failure analysis of foil journal bearing under low-speed operating conditions
低速运行条件下箔式滑动轴承的故障分析 |
| 作 者： |
Mourya, Vishal
Bhore, Skylab P. |
| 关键词： |
Foil bearings [箔片轴承]
wear rate [ 磨损率]
surface roughness [ 表面粗糙度]
failure analysis [ 故障分析]
PERFORMANCE [ 表演] |
| 出版年： |
2024 |
| 期刊名： |
Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science
《机械工程师学会期刊 C 部分·机械工程科学杂志》 |
| 年卷期： |
2024, vol.238, no.19 |
| 摘 要： |
In this failure analysis, the bump-type foil journal bearing (BFJB) is developed with various foil materials such as spring steel EN42J, phosphor bronze, Inconel X750, and SS 316. Subsequent failure analysis of the BFJB is conducted under low-speed operating conditions to evaluate their rubbing performance using the RSM technique. The study examined rotor speed and load as variable parameters, with wear rate (WR) and surface roughness (SR) of the BFJB as output responses. Additionally, a thermal imager is used to measure the rubbing temperature of the BFJB. The results indicated that Inconel X750 demonstrated superior tribological characteristics for the BFJB. With an increase in load, the wear rate of the BFJB increased while the surface roughness decreased. Among all foil materials, Inconel X750 had the most significant impact on surface roughness. The optimal values for rotor speed (S) and load (P) to enhance BFJB performance are 500 rpm and 10 N, respectively. Under these optimal conditions, the BFJB with Inconel X750 as the foil material exhibited a wear rate of 0.0150 mg/s and a surface roughness of 2.085 mu m. Moreover, the BFJB made with phosphor bronze displayed the minimum rubbing temperature.
在此次失效分析中，开发了凸型箔式滑动轴承（BFJB），其采用了多种箔材，如弹簧钢 EN42J、磷青铜、因科尼尔 X750 和 SS 316。随后，在低速运行条件下对 BFJB 进行了失效分析，采用 RSM 技术来评估其摩擦性能。该研究将转速和负载作为变量参数进行考察，而 BFJB 的磨损率（WR）和表面粗糙度（SR）作为输出响应。此外，还使用热像仪来测量 BFJB 的摩擦温度。结果表明，因科尼尔 X750 对 BFJB 的摩擦学特性表现出了优越性。随着负载的增加，BFJB 的磨损率增加，而表面粗糙度降低。在所有箔材中，因科尼尔 X750 对表面粗糙度的影响最为显著。使 BFJB 性能得到优化的转速（S）和负载（P）的最佳值分别为 500 转/分钟和 10 牛顿。在这些最佳条件下，使用镍基合金 X750 作为箔材的 BFJB 的磨损率达到了 0.0150 毫克/秒，表面粗糙度为 2.085 微米。此外，用磷青铜制成的 BFJB 的摩擦温度最低。 |
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