INVESTIGATION ON THE APPLICATION OF THE BOUNDARY ELEMENT METHOD TO THE SPIRAL GROOVED THRUST BEARING

• 作 者: ZHU Qin Yi Xuemei
• 机 构: School of Mechanical Engineering, Shanghai University
• 出 处: 机械工程学报(英文版)
• 发表日期: 2000年2期
• 关键词: Pressure control equation Boundary element methrrod Spiral grooved thrust beari

An application of the boundary element method (BEM)ris presented to calculate the behaviors of a spiral grooved thrust bearing (SGTrrnB). The basic reason is that the SGTB has very complex boundary conditions that rrncan hinder the effective or sufficient applications of the finite difference metrrnhod (FDM) and the finite element method (FEM), despite some existing work based rrnon the FDM and the FEM. In order to apply the BEM, the pressure control equationrrn, ie, Reynolds equation, is first transformed into Laplaces and Poissonrrns form of the equations. Discretization of the SGTB with a set of boundary elerrnments is thus explained in detail, which also includes the handling of boundary rrnconditions. The Archimedean SGTB is chosen as an example of the application of BrrnEM, and the relationship between the behaviors and structure parameters of the brrnearing are found and discussed through this calculation. The obtained results larrny a solid foundation for a further work of the design of the SGTB.rnrn is presented to calculate the behaviors of a spiral grooved thrust bearing (SGTrrnB). The basic reason is that the SGTB has very complex boundary conditions that rrncan hinder the effective or sufficient applications of the finite difference metrrnhod (FDM) and the finite element method (FEM), despite some existing work based rrnon the FDM and the FEM. In order to apply the BEM, the pressure control equationrrn, ie, Reynolds equation, is first transformed into Laplaces and Poissonrrns form of the equations. Discretization of the SGTB with a set of boundary elerrnments is thus explained in detail, which also includes the handling of boundary rrnconditions. The Archimedean SGTB is chosen as an example of the application of BrrnEM, and the relationship between the behaviors and structure parameters of the brrnearing are found and discussed through this calculation. The obtained results larr
y a solid foundation for a further work of the design of the SGTB.