Dynamic Characteristics of Magnetic Suspended Dual-Rotor System by Riccati Transfer Matrix Method

被引：9
|
作者：
Wang, Dongxiong [1 ,2 ]
Wang, Nianxian [1 ,2 ]
Chen, Kuisheng [1 ,2 ]
Ye, Chun [1 ,2 ]
机构：
[1] Wuhan Univ Sci & Technol, Key Lab Met Equipment & Control, Minist Educ, 947 Heping Venue, Wuhan 430081, Hubei, Peoples R China
[2] Wuhan Univ Sci & Technol, Hubei Key Lab Mech Transmiss & Mfg Engn, 947 Heping Ave, Wuhan 430081, Hubei, Peoples R China
来源：
SHOCK AND VIBRATION | 2019年 / 2019卷
基金：
中国国家自然科学基金;
关键词：
WHOLE AEROENGINE MODEL; DAMPED CRITICAL SPEEDS; COAXIAL ROTOR; BEARING; VIBRATION; COMPUTATION; STABILITY;
D O I：
10.1155/2019/9843732
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The magnetic suspended dual-rotor system (MSDS) can effectively increase the thrust weight ratio of aeroengines. However, the MSDS dynamic characteristics have rarely been investigated. In this research, a MSDS with the outer rotor supported by two active magnetic bearings (AMBs) is designed, and the PID control is employed. The Riccati transfer matrix method using complex variables is adopted to establish the MSDS dynamic model. Subsequently, the influences of AMBs' control parameters on the MSDS dynamic characteristics are explored. According to the analysis, two rigid mode shapes remain unchanged with the variation of the relationship between their corresponding damped critical speeds (DCSs). Moreover, the rigid DCSs disappear with large derivative coefficient. Eventually, the validity of the dynamic model and the appearance of rigid DCSs are verified.
引用
收藏
页数：22
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