Appearance of hysteresis phenomena on hydrodynamic lubrication in a seal-type thrust bearing with dimples

Reo Miwa, Norifumi Miyanaga*, Jun Tomioka

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

This paper described unique hysteresis phenomena that appear in the hydrodynamic lubrication properties of dimpled thrust bearings. A seal-type thrust bearing specimen was textured with dimples. The load-carrying capacity and frictional torque were measured with a constant film thickness and compared to those of a dimple-free specimen. For examining the size of cavitation bubbles that occurred in various conditions, the lubricating area was observed during experiments. The used dimpled specimen produced the load-carrying capacity, and it exhibited an interesting hysteresis phenomenon, the difference in the values in the increasing and decreasing processes of rotational speed. The visualization test results revealed that the size of cavitation bubbles occurring within the dimples strongly affected this phenomenon. In addition, the dimpled specimen was able to reduce the frictional torque compared to the dimple-free specimen. However, the frictional torque did not show the hysteresis loop similar to that shown in the load-carrying capacity.

本文言語English
論文番号5222
ジャーナルMaterials
14
18
DOI
出版ステータスPublished - 2021 9

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学

フィンガープリント

「Appearance of hysteresis phenomena on hydrodynamic lubrication in a seal-type thrust bearing with dimples」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル