Transient lubrication performance of tilting-pad journal bearings under dynamic load considering bi-directional misalignment and mixing temperature behavior

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2024-10-17 DOI:10.1016/j.triboint.2024.110318

Xinyuan Wang , Kai Wang , Xilong Ji , Kaidi Zhu , Lihua Yang , Le Pang , Hankun Bing

引用次数: 0

Abstract

Tilting-pad journal bearings (TPJBs) are highly self-adaptive for serving as support bearings in marine gas turbines. However, the research on the transient lubrication performance of TPJBs during ship navigation is limited, especially under misalignment and complex heat exchange. A transient tribo-dynamic model considering the bi-directional misalignment and mixing temperature behavior of TPJBs has been built. The time-varying oil film characteristics are comparatively analyzed among different misalignments. Moreover, the influence of mixing temperature behavior on transient responses is further revealed. The results indicate that the interaction effect of mixing behavior and misalignment has a substantial impact on the transient characteristics of TPJBs with dynamic load. It is significant to forecast the lubrication performance of TPJBs of marine gas turbines.

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考虑到双向不对中和混合温度行为，动载荷下斜垫式轴颈轴承的瞬态润滑性能

斜垫式轴颈轴承（TPJB）具有很强的自适应能力，可用作船用燃气轮机的支撑轴承。然而，对 TPJB 在船舶航行过程中的瞬态润滑性能的研究还很有限，尤其是在错位和复杂的热交换条件下。考虑到 TPJB 的双向错位和混合温度行为，我们建立了一个瞬态三动态模型。比较分析了不同错位情况下的时变油膜特性。此外，还进一步揭示了混合温度行为对瞬态响应的影响。结果表明，混合行为和不对中的相互作用对 TPJB 在动态负载下的瞬态特性有很大影响。这对预测船用燃气轮机 TPJB 的润滑性能具有重要意义。

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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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.