高技术通讯2025，Vol.35Issue(7)：746-759,14.DOI:10.3772/j.issn.1002-0470.2025.07.007
转子轴颈形状误差对超声-气体静压轴承混合支承主轴误差运动的影响
Effect of rotor journal shape error on the error motion of ultrasonic-aerostatic hybrid bearing spindle
摘要
Abstract
In order to explore the influence of acoustic levitation rotor journal shape error on the error motion of ultrason-ic-aerostatic hybrid bearing spindle,the experimental measurement and theoretical model characterization of the journal shape error of the acoustic levitation rotor are carried out and the dynamic model of ultrasonic-aerostatic hy-brid spindle considering the journal shape error is established by linear acceleration method.The bearing capacity and the change of spindle displacement curve are obtained by Matlab programming.At the same time,the error mo-tion of spindle is measured by laser displacement sensor.The measured data are compared with the simulation mod-el after low-pass filtering to get the influence of the shape error of the acoustic levitation rotor on the bearing capaci-ty of the ultrasonic bearing and the error motion of the mixed support spindle.The results show that the introduction of shape error can increase the bearing capacity,but the error motion of the spindle will also increase,and the radial error motion is more obvious than the axial error motion.The average deviation between the experimental and simu-lation models is 8.12％.This study provides valuable insights for the error motion analysis and active control of the aerostatic spindle based on acoustic levitation,which is conducive to improving the accuracy of the multi-field cou-pling rotor dynamics model of the hybrid bearing spindle.关键词
形状误差/超声悬浮轴承/超声悬浮力/误差运动/混合支承主轴Key words
shape error/ultrasonic bearing/ultrasonic levitation force/error motion/hybrid bearing spindle引用本文复制引用
陈国达,王深..转子轴颈形状误差对超声-气体静压轴承混合支承主轴误差运动的影响[J].高技术通讯,2025,35(7):746-759,14.基金项目
浙江省自然科学基金(LY22E050003)和浙江省属高校基本科研业务费项目优秀青年科学家专项(RF-A2020005)资助项目. （LY22E050003）
