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In thisJournal Bearing Rotors chapter, a more accurate model of oil film forcesOil film forces is derived from Reynolds equations. The mechanical models of 2-DOF and 4-DOF nonlinear journal bearing rotor systems are established for a lower level amplitude transverse vibration. A simple nonlinear journal bearing rotor system consists of a uniform shaft carrying a disk in its middle span. The shaft is supported by two journal bearings at both ends. The journal bearing is made up of a journal, bearing house and lubricant. For such simple journal bearing rotor system, the Reynolds equation (Reynolds, Philos Trans R Soc Lond 177:157–234, 1886) can be adopted.

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Modeling of Journal Bearing Rotors

  • 章节

  • 发表日期：

    2025年

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  • Yeyin Xu,
  • Jianzhe Huang,
  • Albert C. J. Luo

摘要

In thisJournal Bearing Rotors chapter, a more accurate model of oil film forcesOil film forces is derived from Reynolds equations. The mechanical models of 2-DOF and 4-DOF nonlinear journal bearing rotor systems are established for a lower level amplitude transverse vibration. A simple nonlinear journal bearing rotor system consists of a uniform shaft carrying a disk in its middle span. The shaft is supported by two journal bearings at both ends. The journal bearing is made up of a journal, bearing house and lubricant. For such simple journal bearing rotor system, the Reynolds equation (Reynolds, Philos Trans R Soc Lond 177:157–234, 1886) can be adopted.