Rotor Dynamic Analysis and Experimental Study of the Aerostatic Spindle

• Main Authors: Chun-Hsien Li, 李俊賢
• Other Authors: Ming-Fei Chen
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/89241269665642890080

碩士 === 國立彰化師範大學 === 機電工程學系 === 95 === The high-speed air spindle system has been used widely in various kinds of the precision machines including the wafer saw cutting machines, printed circuit board drilling etc. The performance of the shaft will influence the quality of the manufacturing greatly. So this thesis discuss dynamic behavior analysis and experiment results for the air-spindle system. First, we used the Finite Difference Method to analyze the performances which include load capacity, stiffness, and realize the aerodynamic effect for the air-bearing. Then, we used the Finite Element Method to analyze the dynamic characteristics of the rotor-bearing system. Finally the Campbell diagram, mode shape and the critical speed versus bearing stiffness diagrams in comparison with the experiment results will be reified in this paper.