| 陈雪莲1，2，曾劲3，马辉3，4，范晓宇5.叶片脱落诱发的转子- 盘片系统不平衡响应分析[J].航空发动机,2020,46(4):52-57 |
| 叶片脱落诱发的转子- 盘片系统不平衡响应分析 |
| Analysis of Unbalanced Response of Rotor-Disk-Blades System Induced by Blade Loss |
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| DOI： |
| 中文关键词: 叶片脱落 转子- 盘片 弹性支承 有限元 航空发动机 |
| 英文关键词:blade loss rotor-disk-blades elastic supports finite element aeroengine |
| 基金项目:辽宁省博士科研启动基金（20170520222）、国家自然科学基金（11772089）、中央高校基本科研业务费专项资
金（N170308028，N170306004）、辽宁省高等学校创新人才支持计划（LR2017035）资助 |
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| 中文摘要: |
| 为了厘清叶片脱落诱发的失衡载荷及瞬时冲击对航空发动机转子系统动特性的影响，以转子- 盘片系统为研究对象，
考虑弹性支承的影响，基于ANSYS/LS-DYNA 软件建立系统的有限元模型，模拟叶片脱落对转子- 盘片系统振动响应的影响，分析转
子转速、不平衡量、盘偏置量及支承刚度对系统不平衡振动响应的影响规律。结果表明：轴承支承总反力的变化趋势与系统不平衡
量的变化趋势相同；盘片结构越靠近轴承支承端，轴承支承总反力越小；刚性支承（≥107 N/m）下轴承支承总反力较柔性支承（<107
N/m）下的偏大。该研究可为转子- 盘片系统的结构设计提供参考。 |
| 英文摘要: |
| In order to clarify the influence of unbalance load and transient impact induced by blade loss on the dynamic
characteristics of aeroengine rotor system，the rotor disk system was taken as the research object and the influence of elastic support was
considered. The finite element model of the system was established based on ANSYS / LS-DYNA software to simulate the influence of blade
loss on the vibration response of rotor-disk-blades system. The influences of rotor speed，unbalance value，disk offset value and support
stiffness on the unbalanced vibration response of system were analyzed. The results show that the variation trend of the total reaction force of
bearing support is the same as that of the system unbalance value. The closer the disk-blades structure is to the bearing support end，the
smaller the total reaction force of the bearing support is. The total reaction force of bearing under rigid support (≥107 N/m) is larger than
that under elastic support (<107 N/m). The research can provide reference for the structural design of rotor-disk-blades system. |
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