CAJ | 학술논문

以螺旋槽气体动压轴承为研究对象,建立螺旋槽气体动压轴承润滑分析的数学模型;通过几何变换简化模型,采用有限差分法对Reynolds方程进行求解,计算轴承间隙内的三维压力分布,揭示轴承结构参数和运行参数变化对轴承稳态气膜压力分布、轴承承载能力的影响规律,结果表明,为使动压轴承得到良好的静态特性,必须合理选择轴承结构设计参数.
이라선조기체동압축승위연구대상,건립라선조기체동압축승윤활분석적수학모형;통과궤하변환간화모형,채용유한차분법대Reynolds방정진행구해,계산축승간극내적삼유압력분포,게시축승결구삼수화운행삼수변화대축승은태기막압력분포、축승승재능력적영향규률,결과표명,위사동압축승득도량호적정태특성,필수합리선택축승결구설계삼수.
In order to research the static performances of conical spiral groove aerodynamic bearings,the mathematical model for the lubrication analysis of conical spiral groove aerodynamic bearings was established. Through the geometry transform,the model was simplified for numerical solution. Reynolds equations of aerodynamic bearings were established and solved by finite difference method. The three dimensional stress distributions within bearing clearance were numerically computed. It revealed the influence of the bearing structure parameters and operation parameters variations to bearing steady state gas film pressure distribution and bearing capacity. The results show that bearing structure design parameters must be chosen reasonably in order to get good static characteristics for hydrodynamic bearings.