机械科学与技术2024，Vol.43Issue(4)：650-659,10.DOI:10.13433/j.cnki.1003-8728.20220252
加工误差对静压气浮主轴静动态性能的影响
Influence of Manufacturing Errors on Static and Dynamic Performances of Aerostatic Spindle
摘要
Abstract
An aerostatic spindle is studied in which the its orifices are distributed unevenly and have different diameters and to improve its static and dynamic characteristics.The effects of different orifice diameters and uneven distributions on bearing load capacity are analysed with Finite Difference Method combined with Linear Perturbation Method.The influences of circumferential or axial manufacturing errors(sine waviness,square waviness,triangular waviness)in sleeve on static and dynamic performances are analysed.The results indicate that the bearing capacity of aerostatic spindle increased most significantly if orifice diameter coefficient is within 0.9～0.95.Circumferential and axial manufacturing errors improve bearing capacity.Square waviness and triangular waviness have more significant influence on bearing capacity.Axial square waviness and triangular waviness are hopeful for dissipating the whirling energy and improving the stability of the spindle.The larger the amplitude of manufacturing errors is,the worse the stability of the spindle is.关键词
静压气浮主轴/有限差分法/线性小扰动法/加工误差/静态性能/动态性能Key words
aerostatic spindle/finite difference method/linear perturbation method/manufacturing errors/static characteristics/dynamic characteristics分类
机械制造引用本文复制引用
李瑞瑞,李运堂,王鹏峰,叶月亮,李孝禄,陈源..加工误差对静压气浮主轴静动态性能的影响[J].机械科学与技术,2024,43(4):650-659,10.基金项目
国家自然科学基金项目(51675498)与浙江省属高校基本科研业务费专项(2020YW29) （51675498）
