高速可拆卸转子止口连接结构稳健性设计方法

岳伟; 梅庆; 张大义; 洪杰

doi:10.13224/j.cnki.jasp.2017.07.028

高速可拆卸转子止口连接结构稳健性设计方法

doi: 10.13224/j.cnki.jasp.2017.07.028

1.
北京航空航天大学能源与动力工程学院，北京 100191
2.
中国航空发动机集团有限公司湖南动力机械研究所，湖南株洲 412002

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出版历程
- 收稿日期: 2015-03-04
- 刊出日期: 2017-07-28

Robust design method of rabbet joint structure in high speed assemble rotor

摘要

摘要: 采用止口连接结构，提出了可拆卸转子结构设计方案。通过分析止口结构刚度损失模型，得到了连接机构对转子整体刚度的影响加速增加的特征。进而通过非线性有限元接触分析，得到其刚度稳健性设计方法。结果表明:增大止口局部刚度，连接结构设计时避免弯曲应变能集中，保证弯曲临界转速距工作转速有20%裕度，这样可以提高转子的刚度稳健性；止口连接设计为紧度配合，提高轴向压紧力，优化止口局部结构等方法，这样可以提高转子的接触状态稳健性。
- 高速转子 /
- 止口连接结构 /
- 刚度损失 /
- 接触状态 /
- 稳健性设计
Abstract: A kind of assembly rotor connected by rabbet joint structure was introduced. Based on analyzing the stiffness loss model of rabbet joint structure, the effect of joint structure on the overall stiffness of the rotor was obtained. And then through the nonlinear finite element contact analysis, the rigidity robust design method was obtained. Results show that,by means of increasing the local stiffness of rabbet, avoid bending strain energy concentrated in the joint structure, and ensure 20% margin of the critical speed of bending from the working speed, the rigidity robust can be enhanced; by means of designing the rabbet with interference fit, improve the axial compression force and optimize the local structure of the rabbet, the contact state robust can be enhanced.
- high rotation speed rotor /
- rabbet joint structure /
- stiffness loss /
- contact state /
- robust design

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参考文献(16)

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