中国电机工程学报2011，Vol.31Issue(14)：90-95,6.
基于局部微分求积-拉格朗日法的滑动轴承动力特性求解模型
Journal Bearing Dynamic Characteristics Calculation Model Based on the Local Differential Quadrature-Lagrange Method Based on Lagrange Interpolationmethod
摘要
Abstract
The paper set up a local differential quadrature-Lagrange method based on Lagrange interpolation (DQ-Lagrange) to solve the journal bearing dynamic characteristics. Based on the research above, both the static pressure and perturbed pressure were solved in the same time. This paper analyzed the influence of the mesh density, the size of the support domain and the boundary condition treatment method on the accuracy of the calculation. The calculation results show that the multipoint support domain model has high accuracy, which is equivalent to high order finite difference method. It may cause numerical oscillation when support domain has too much nodes. The half-Sommerfeld boundary condition and the Reynolds boundary condition have more influence for the dynamic characteristic coefficients to the maximum pressure and load. The dynamic characteristic coefficients solved by the Reynolds boundary condition are usually bigger than those by the half-Sommerfeld boundary condition.关键词
微分求积法/滑动轴承/Reynolds方程/动力特性系数分类
能源科技引用本文复制引用
孙丹,杨建刚,郭瑞..基于局部微分求积-拉格朗日法的滑动轴承动力特性求解模型[J].中国电机工程学报,2011,31(14):90-95,6.基金项目
国家自然科学基金项目(50875045). （50875045）
