| 侯小捷1，罗忠1，黄耀宇2，张西厂2.考虑螺栓联接的转子系统振动特性分析[J].航空发动机,2018,44(6): |
| 考虑螺栓联接的转子系统振动特性分析 |
| Vibration Characteristics Analysis of Rotor System with Bolt Connection |
| |
| DOI： |
| 中文关键词: 螺栓法兰联接 振动特性 有限元模型 转子模型 航空发动机 |
| 英文关键词:flanged connection,vibration characteristics,Finite Element model,rotor model,aeroengine |
| 基金项目:国家自然科学基金（11872148、11572082）、教育部基本科研业务费专项资金（N170308028、N160312001）、辽宁省
高等学校优秀人才支持计划（LJQ2015038）资助 |
|
| 摘要点击次数: 1232 |
| 全文下载次数: 1035 |
| 中文摘要: |
| 针对航空发动机转子振动问题，开展了螺栓法兰联接结构对转子固有特性及不平衡响应的研究。基于有限单元法，结合
转子有限元模型及螺栓法兰联接结构的力学模型，建立了考虑螺栓法兰联接的转子动力学模型。基于Newmark-β 法求解转子不平
衡响应及固有特性，并利用ANSYS 仿真软件对结果进行了仿真验证，得到了联接结构刚度对转子固有特性的影响规律。研究结果表
明：转子第1 阶固有频率对螺栓法兰结构的轴向刚度变化较为敏感；第2 阶固有频率对螺栓法兰结构的径向刚度变化较为敏感；
第3 阶固有频率则对螺栓法兰结构的2 种刚度变化均较为敏感；并且转子处的联接刚度会对转子的不平衡响应有一定抑制作用 |
| 英文摘要: |
| Abstract: In order to solve the vibration problem of aeroengine rotor,the research on the rotor inherent characteristics and rotor
unbalance response of bolted flange connection structure was carried out. Based on the Finite Element method,combined with the Finite
Element model of rotor and the mechanical model of bolted flange connection structure,the rotor dynamics model with bolt flange
connection was established. Based on Newmark- βmethod,the unbalanced response and inherent characteristics of rotor were solved. The
simulation results were verified by ANSYS software,and the influence of the stiffness of the rotor connecting structure on the inherent
characteristics was obtained. The results show that the first natural frequency of rotor is sensitive to the axial stiffness change of bolted
flange Structure. The Second natural frequency is sensitive to the radial stiffness change of bolted flange structure. The Third natural
frequency is sensitive to both stiffness changes of bolted flange structure and the connection stiffness of rotor can restrain the unbalance response of rotor. |
| 查看全文 查看/发表评论 下载PDF阅读器 |