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| 结构阻尼对发动机转子系统稳定性的影响 | |
| 引用本文： | 程礼,范家栋,陈雪峰.结构阻尼对发动机转子系统稳定性的影响[J].航空动力学报,2009,24(2):360-364. |
| 作者姓名： | 程礼 范家栋 陈雪峰 |
| 作者单位： | 1. 西安交通大学机械制造系统工程国家重点实验室,西安,710049;空军工程大学工程学院,西安,710038 2. 空军工程大学工程学院,西安,710038 3. 西安交通大学机械制造系统工程国家重点实验室,西安,710049 |
| 基金项目： | 国家高技术研究发展计划(863计划)，总参维修预研基金 |
| 摘 要： | 根据航空发动机转子的结构特点,构建了考虑结构阻尼和挤压油膜阻尼力的转子动力学简化模型,分别采用Routh-Hurwitz判据和平衡点解预测追踪算法分析了转子系统的失稳门槛转速.结果表明:结构阻尼会导致转子系统在临界转速之上的某一转速范围内失稳,并且会降低由挤压油膜阻尼力引起的失稳门槛转速,使转子系统提前进入失稳状态. |
| 关 键 词： | 稳定性 转子系统 结构阻尼 挤压油膜阻尼力 |
| 收稿时间： | 1/11/2008 9:36:25 PM |
| 修稿时间： | 7/10/2008 8:00:42 PM |
Influence of structural damping on stability of the rotor system |
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| CHENG Li,FAN Jia-dong and CHEN Xue-feng.Influence of structural damping on stability of the rotor system[J].Journal of Aerospace Power,2009,24(2):360-364. | |
| Authors: | CHENG Li FAN Jia-dong and CHEN Xue-feng |
| Institution: | 1.State Key Laboratory for Manufacturing Systems Engineering;Xi'an Jiaotong University;Xi'an 710049;China;2.The Engineering Institute;Air Force Engineering University;Xi'an 710038;China |
| Abstract: | According to the characteristics of the rotor system of a turbo-fan engine,a simplified rotor dynamic model with structural damping and squeezed film damping was constructed.Stability of the rotor system was analyzed by the Routh-Hurwitz criterion and the tracing method of the steady-state.The results show that the structural damping may cause the rotor system to be out of stability within a range of speed over the system's critical speed and may reduce the threshold speed for dynamic instability caused by ... |
| Keywords: | stability rotor system structural damping squeezed film damping |
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