| 自由涡轮叶片/轮盘耦合振动特性分析 |
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| 引用本文： | 张原,郁大照,张浩然.自由涡轮叶片/轮盘耦合振动特性分析[J].航空发动机,2011,37(6):21-25. |
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| 作者姓名： | 张原 郁大照 张浩然 |
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| 作者单位： | 1. 海军航空工程学院,山东烟台,264001
2. 海军装备部,北京,100071 |
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| 摘 要： | 自由涡轮是航空发动机的关键部件,其工作环境非常恶劣,承受着离心载荷、热载荷、气动载荷及振动载荷等的复合作用。利用UG软件对某型自由涡轮2级涡轮轮盘/叶片进行3维实体建模,导入ANSYS构建其耦合振动分析的有限元模型,以静强度分析中的模型为基础,考虑温度场和离心载荷的影响,计算出涡轮叶片/轮盘不同转速下的动频。从Campbell图可见,涡轮叶片/轮盘在工作转速下没有发生共振的危险,该型涡轮设计合理。
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| 关 键 词： | 自由涡轮 2级涡轮 盘/叶耦合 耦合振动 振动特性 航空发动机 |
Analysis of Coupled Vibration Characteristics of Free Turbine Blade/Disk |
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| Authors: | ZHANG Yuan YU Da-zhao ZHANG Hao-ran |
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| Institution: | 1.Naval Aeronautical and Astronautical University,Yantai Shandong 264001,China; 2.Naval Equipment Department,Beijing 100071,China) |
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| Abstract: | Free turbine is a key component of an aeroengine,its working environment is very poor.It bears the centrifugal load,heat load,aerodynamic loads and vibration loads and etc.The 3D solid modeling of a free turbine disk / blade was built using UG software.The three-dimensional model was imported into ANSYS to establish the finite element model of coupled vibration.Based on the model in the static strength analysis,the dynamic frequency of turbine disk / blade at different rotor speed was calculated considering the effect of temperature field and centrifugal loads.According to Campbell diagram,turbine disk / blade has no risk of resonance at rotor speed.The turbine design is reasonable. |
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| Keywords: | free turbine two stage turbine disk / blade coupling coupled vibration vibration characteristics aeroengine |
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