大连海事大学学报 >
2016 , Vol. 42 >Issue 4: 73 - 78
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2016.04.012
具有柔性支承的刚性转子系统的动力学分析模型
收稿日期: 2016-04-01
修回日期: 2016-05-05
网络出版日期: 2016-05-05
基金资助
国家自然科学基金重点资助项目(51606023；51436002)；辽宁省自然科学基金资助项目(2015020130)；中央高校基本科研业务费专项资金资助项目(3132016016).
Dynamic analysis model for a rigid rotor system with flexible supports
Received date: 2016-04-01
Revised date: 2016-05-05
Online published: 2016-05-05
王永亮 , 崔颖 , 韩聿 , 钟兢军 . 具有柔性支承的刚性转子系统的动力学分析模型[J]. 大连海事大学学报, 2016 , 42(4) : 73 -78 . DOI: 10.16411/j.cnki.issn1006-7736.2016.04.012
A rotor system with large rigidity of the shaft and small supporting stiffness is one kind of the common rotating machinery’s shafting system. A dynamic model with 4 degrees of freedom (lateral displacements and angles at the center of gravity) was established. The stiffness matrix and damping matrix were deduced by the flexibility matrix method to obtain motion equation for rigidity shaft-soften supporter system with 8 dynamic characteristic coefficients of oil film bearing. The accuracy of the model was verified by comparing a numerical example with the Ansys software. Results can provide a fast analytical model for the rotor dynamic design and optimization of the rigid rotor-flexible supporting system.
Key words： rigid rotor; flexible supporting; rotor dynamic; dynamic model; critical speed
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