界面连接多盘转子旋转惯性模型及动力响应特性

洪杰; 闫琦; 丰少宝; 孙博; 马艳红

doi:10.13224/j.cnki.jasp.20210556

界面连接多盘转子旋转惯性模型及动力响应特性

doi: 10.13224/j.cnki.jasp.20210556

洪杰^1,2,
闫琦¹,
丰少宝³,
孙博³,
马艳红^1,2

1.
北京航空航天大学能源与动力工程学院，北京 100191
2.
先进航空发动机协同创新中心，北京 100191
3.
中国航空发动机集团有限公司沈阳发动机研究所，沈阳 110015

基金项目: 国家重大科技专项（2017-Ⅳ-0011-0048，2017-Ⅶ-0010-0104）

详细信息

作者简介:
洪杰（1965-），男，教授、博士生导师，博士，从事航空燃气轮机转子动力学、整机动力学研究。

中图分类号: V231.96
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- 被引次数: 0
出版历程
- 收稿日期: 2021-09-29
- 刊出日期: 2022-05-28

Rotational inertia model and dynamic response characteristics of multi-disk rotor system with interface

1.
School of Energy and Power Engineering，Beihang University，Beijing 100191，China
2.
Collaborative Innovation Center for Advanced Aero-Engine，Beijing 100191，China
3.
Shenyang Engine Research Institute，Aero Engine Corporation of China，Shenyang 110015，China

摘要

摘要: 针对工作在超临界状态下带有界面连接的多盘转子系统，采用惯性主轴偏斜描述质量分布，考虑各轮盘旋转惯性载荷随转速和弯曲变形变化的特征，建立了高速多盘转子力学模型。在定量描述加工/装配误差和连接结构接触状态影响下各级轮盘质量分布的基础上，探究了转子动力响应及支点动载荷幅值和相位随转速的变化规律。理论模型及仿真结果表明：在超临界状态下，转子旋转惯性力矩会使支点动载荷幅值随转速继续增大；而高转速状态下，连接结构接触状态的变化可能使多盘转子的质量分布发生改变，转子惯性主轴趋近旋转中心线，转子所受的旋转惯性载荷减小，体现出振动突降的响应特征。
- 超临界状态 /
- 多盘转子 /
- 支点动载荷 /
- 惯性主轴倾斜 /
- 界面接触损伤
Abstract: For the interface-connected multi-disk rotor system working in postcritical range，the deflection of the principal axis of inertia was used to describe the mass distribution，the time-varying characteristics of the rotating inertial load of each wheel with the speed and bending deformation were considered，and the dynamic model of the interface-connected multi-disk rotor was established.Based on the quantitative description of the mass distribution of disks under the influence of machining/assembly error and contact state of connecting structure，the dynamic response of the rotor and the dynamic load amplitude and phase of the bearing change with the speed were explored.The theoretical model and simulation results showed that in the postcritical range，the rotational inertia moment of the rotor caused the bearing dynamic load amplitude to increase with the speed continually；at high speed，the change of the contact state of the connecting structure may change the mass distribution of the multi-disk rotor，the principal axis of inertia of the rotor approached the rotation center line，the rotation inertia load on the rotor decreased，and the vibration response dropped rapidly.
- postcritical range /
- multi-disk rotor /
- bearing dynamic load /
- skewness of the principal axis of inertia /
- interface damage

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