Scholarlink

<p>To address the load stability of the new non-uniformly distributed tilting pad journal bearing (NDTPJB) under low-speed and high-load conditions in wind turbines, a comprehensive 3D computational fluid dynamics (CFD) analysis with a multiphase flow model is proposed. Using the Navier-Stokes equations combined with the cavitation model, the study accurately evaluated the bearing’s performance. FLUENT software, enhanced by a user-defined function (UDF), accounts for the interaction between the tilting pad and the oil film. The impact of various load sizes, directions, and pivot coefficients on dynamic pressure, shaft trajectory, pad swing, and pivot forces were systematically analyzed. Results reveal that under these conditions, only the lower part of the bearing bears the load, and adjustments in load direction and pivot coefficient improve stability and reduce pivot forces. This study offers valuable insights for the design and performance analysis of NDTPJBs.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Steady state performance analysis of non-uniformly distributed tilting pad bearing

  • 期刊论文

  • 发表日期：

    2025年12月10日

查看全文
  • Yue Zhuo,
  • Chaosheng Song,
  • Ronghua Zhang,
  • Zhuang Zeng

摘要

To address the load stability of the new non-uniformly distributed tilting pad journal bearing (NDTPJB) under low-speed and high-load conditions in wind turbines, a comprehensive 3D computational fluid dynamics (CFD) analysis with a multiphase flow model is proposed. Using the Navier-Stokes equations combined with the cavitation model, the study accurately evaluated the bearing’s performance. FLUENT software, enhanced by a user-defined function (UDF), accounts for the interaction between the tilting pad and the oil film. The impact of various load sizes, directions, and pivot coefficients on dynamic pressure, shaft trajectory, pad swing, and pivot forces were systematically analyzed. Results reveal that under these conditions, only the lower part of the bearing bears the load, and adjustments in load direction and pivot coefficient improve stability and reduce pivot forces. This study offers valuable insights for the design and performance analysis of NDTPJBs.