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《Journal of Mechanical Strength》 2009-05
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ZHANG GenSheng DING Qian CHEN YuShu(Department of Mechanics,Tianjin University,Tianjin 300072,China)  
To investigate the influence of axial rubs on rotor vibration,the calculating models of the axial contact force and the friction force between the disks and sealing flanges of the stator are deduced using the bending theory and the micro-angular displacement composition theory.The axial contact forces are converted into the radial forces based on the equivalent moment rule.The coupled lateral-torsional vibration equations of a simply supported shaft,attached with two disks,are given out.By using the numerical simulation method,the influence of axial rubs on the shaft's resonant response is analyzed,which suggests that with decrease of the axial clearance between the disks and stator,both the lateral and torsional vibrations take changes regularly.Comparably the torsional vibration can reflect more obviously the axial rubbing level.
【Fund】: 国家自然科学基金(10632040 10672115);; 天津市自然科学基金(08JCZDJC20200)资助项目~~
【CateGory Index】: TH113.1
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