Dynamics Analysis of a Rigid Rotor System with Drum on Supports

被引：0
|
作者：
Chen, Lumiao [1 ]
Qin, Zhaoye [1 ]
Chu, Fulei [1 ]
机构：
[1] Tsinghua Univ, Beijing, Peoples R China
来源：
PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL FEDERATION FOR THE PROMOTION OF MECHANISM AND MACHINE SCIENCE WORLD CONGRESS | 2015年
基金：
北京市自然科学基金;
关键词：
Disk-drum; Rigid rotor; Vibration response; Unbalance mass; COMPOSITE CYLINDRICAL-SHELLS; VIBRATION ANALYSIS; BOUNDARY-CONDITIONS;
D O I：
10.6567/IFToMM.14TH.WC.FA.028
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The disk-drum rotor systems with disks, shafts and drums are used widely in large rotating machines such as gas turbine, aircraft engine and so on. The existing study for the rotors always neglected the influence of the drums. This paper establishes a rigid rotor model with flexible supports for the disk-drum rotor system and analyzes its dynamic characteristics. The equations of motion are developed using the shell theory and energy expressions, where bearing stiffness-damping and deformation of the drum are included. Based on the proposed model, the natural frequency and vibration modes are obtained. The analysis involves the vibration behavior of the drum with respect to the geometric parameters (i.e., radius, length and thickness). The results reveal the basic parameters of the drum have a significant effect on the vibration response, which can also cause the dynamics features of the rotor system change. Moreover, the model developed helps to analyze the dynamics of the drum.
引用
收藏
页码：172 / 176
页数：5
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