摘要
为了分析制造误差对轴颈 -止推相连型结构气体静压轴承的影响 ,提出了相容性变换条件 ,将轴颈和止推轴承进行统一分析 ;在离散化过程中 ,利用加权余量法将二阶偏微分方程降低一阶 ,放松了对插值函数连续度的要求 ,便于借助有限元技术分析狭缝节流气体静压轴承的流场参数。研究了平行度、圆度和端面垂直度等制造误差对静态特性的影响 ;重点分析了轴颈轴承和止推轴承之间的相互影响 ,发现了轴颈的锥度误差会影响轴向承载能力 。
The effect of manufacturing errors on the static characteristics of the externally pressurized gas journal K-thrust bearings is studied by the finite element method. The consistent transform principle is proposed to program the computation for journal and thrust bearing. The second-order partial differential equation, i.e., the Reynolds equation, is reduced to one-order with the weighted residual method in the discretization procedure, which releases the requirement of continuity degree of the interpolation function while the finite element method is adopted. The analyses of this paper center on the influence of the parallelism and roundness of the shaft surface, head face verticality on the load capacities. The mutual influences between journal and thrust bearing are stressed. The shaft taper error produces an impact on the axial load capacities, while the head face verticality error exerts an influence on the radial load capacities.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2003年第3期315-318,共4页
Journal of Harbin Institute of Technology
