摘要
针对支承刚度、轮盘质量、低压轴壁厚对涡桨发动机低压模拟转子临界转速的影响开展研究,为临界转速的调整试验提供理论依据。采用有限元方法建立了低压模拟转子的计算模型,在不同支承刚度、轮盘质量和低压轴壁厚下,利用SAMCEF/ROTOR分析软件对转子前三阶临界转速进行了系统计算,揭示了转子前三阶临界转速随支承刚度、轮盘质量和低压轴壁厚的变化规律,并提出了相应的调整措施,具有工程应用价值。
Influence of supporting stiffness, masses of disk and wall thickness of low-pressure shaft on critical speed of low-pressure simulation rotor of a turboprop engine was researched to provide theoretical bases for adjustment experiment of critical speed. Calculation model of the low-pressure simulation rotor was established by finite element method. The first three stage critical speed of the rotor was systematically calculated by SAMCEF/ROTOR software based on different supporting stiffness, masses of disk and wall thickness of the low-pressure shaft. According to results of data analysis, the change laws of first three stage critical speed with different supporting stiffness, masses of disk and wall thickness of the low-pressure shaft were revealed. Adjustment measures of application value in engineering of critical speed of the rotor were put forward.
作者
邓旺群
范潘潘
袁胜
何萍
夏锟
DENG Wang-qun;FAN Pan-pan;YUAN Sheng;HE Ping;XIA Kun(China Aviation Powerplant Research Institute,Zhuzhou 412002,China;Aviation Key Laboratory of Aero-engine Vibration Technology,Zhuzhou 412002,China)
出处
《燃气涡轮试验与研究》
北大核心
2016年第5期21-24,62,共5页
Gas Turbine Experiment and Research
基金
航空科学基金(20112108001
2013ZB08001)
关键词
航空发动机
转子动力学
低压模拟转子
有限元法
临界转速
变化规律
调整措施
aero-engine
rotor dynamics
low-pressure simulation rotor
finite element method
critical speed
change law
adjustment measure
