Vibration of a misaligned rotor system with asymmetric shaft stiffness

摘要：

　　Vibration characteristics of a misaligned rotor with asymmetric shaft stiffness are studied.The system consists of two shafts connected by a flexible coupling with parallel misalignment,two rigid disks attached at the middle of each shaft and one of the shafts has asymmetric stiffness.The governing ordinary differential equations are derived using Lagrange dynamics and integrated through numerical methods.The effects of asymmetry,eccentricity and misalignment are studied through the peak-to-peak lateral vibration amplitude at different rotor speed.Simulation results show that the amplitude peaks at the natural frequency associated with unbalance and parallel misalignment,while half the natural frequency associated with the asymmetric shaft stiffness.This study may contribute to enrich understanding of the vibration of a rotor system under the cases of eccentricity,parallel misalignment and asymmetric shaft stiffness.

关键词： Vibration Parallel misalignment Flexible coupling Asymmetric shaft stiffness

作者: Sheng Feng Haipeng Geng Shemiao Qi Lie Yu

作者单位: Institute of Mechatronics and Information Systems,State Key Laboratory of Mechanical Structure Strength and Vibration,Xian Jiaotong University,Xian,710049,China

会议类型: 国际会议

会议名称: the 2012 2nd International Conference on Frontiers of Manufacturing Science and Measuring Technology (第二届制造科学与检测技术国际会议(ICFMM 2012))

会议地点: 西安

会议语种:英文

页码: 813-818

在线出版日期: 2012-06-12（万方平台首次上网日期，不代表论文的发表时间）