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教授 博士生导师
招生学科专业:
交通运输工程 -- 【招收博士、硕士研究生】 -- 民航学院
电子信息 -- 【招收博士、硕士研究生】 -- 民航学院
交通运输 -- 【招收博士、硕士研究生】 -- 民航学院
交通运输工程 -- 【招收硕士研究生】 -- 通用航空与飞行学院
交通运输 -- 【招收硕士研究生】 -- 通用航空与飞行学院
性别:男
学历:研究生(博士后)
学位:工学博士学位
所在单位:通用航空与飞行学院
联系方式:报考研究生咨询的同学请发送短信至:13851875041 或发送邮件至:cgnuaacca@163.com
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Influence of support stiffness on aero-engine coupling vibration quantitative analysis
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所属单位:民航学院
发表刊物:JOURNAL OF VIBROENGINEERING
关键字:aero-engine stator-rotor coupling vibration support stiffness stator-rotor rubbing FE method
摘要:This paper investigates the whole aero-engine coupling vibration, as a rotor tester to be the research object. The rotor tester system is composed of two mountings, stator system, support structures and the rotor system. The modal experiment of the whole tester under the condition of mounting in the test room is carried out. The finite element (FE) model of the rotor tester is built, and the model was modified and validated according to the modal test results. A rotor-stator coupling factor and a section rotor-stator rubbing risk coefficient are proposed, the influence of the support stiffness values on the engine vibration characteristics, such as natural frequencies, modal shapes, rotor-stator coupling degree, and stator-rotor rubbing risk degree at compressor and turbine section is quantitative studied. Results show that the support stiffness contributes to the rigid body modal shapes greatly and to the rotor bending ones slightly. The factor and coefficient defined in this study are both reasonable, and they can reflect the corresponding characteristics exactly. Moreover, the effect of the supports stiffness values on the rotor-stator coupling degree and the rotor-stator rubbing risk degree is nonlinear. The rotor-stator coupling factor and the section stator-rotor rubbing risk coefficient proposed in this study provide a new way to quantitatively research the whole engine coupling vibration.
ISSN号:1392-8716
是否译文:否
发表时间:2017-12-01
合写作者:Qu, Meijiao,Tai, Junfei
通讯作者:陈果