| 机动飞行时发动机转子系统动力学统一模型 |
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| 引用本文： | 祝长生,陈拥军.机动飞行时发动机转子系统动力学统一模型[J].航空动力学报,2009,24(2):371-377. |
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| 作者姓名： | 祝长生 陈拥军 |
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| 作者单位： | 浙江大学电气工程,浙江,310027 |
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| 摘 要： | 利用Lagrange方程建立了飞机在任意空间机动飞行时发动机安装在飞机上任意位置条件下不平衡多盘、多质量和多轴承线性及非线性柔性转子系统动力学的统一模型,讨论了飞机的空间机动飞行对发动机转子系统动力特性的影响.结果表明飞机的空间机动飞行不仅在发动机的转子系统上产生了非周期性的附加外激励力,而且还会产生附加的阻尼和刚度效应,这些效应不仅会影响转子系统运动轨道的大小而且会使转子系统运动轨道的中心发生偏移,从而可能使发动机转子与定子之间发生局部的碰磨.因此,在分析航空发动机转子系统的动力特性时,必须考虑飞机机动飞行因素对转子系统动力特性的影响.
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| 关 键 词： | 建模 转子动力学 机动飞行 转子 基础运动 |
| 收稿时间： | 2008/1/17 0:00:00 |
| 修稿时间： | 2008/11/10 0:00:00 |
General dynamic model of aeroengine's rotor system during maneuvering flight |
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| ZHU Chang-sheng and CHEN Yong-jun.General dynamic model of aeroengine''s rotor system during maneuvering flight[J].Journal of Aerospace Power,2009,24(2):371-377. |
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| Authors: | ZHU Chang-sheng and CHEN Yong-jun |
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| Institution: | College of Electrical Engineering;Zhejiang University;Zhejiang 310027;China |
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| Abstract: | A general motion model of a linear or nonlinear flexible aeroengine's rotor with unbalance multi-rigid-disk,multi-lumped-mass and multi-bearing was presented by using Lagrange's equation during any maneuvering flight and for any position of aeroengine installed in airplane.The influences of different maneuvering flights on the dynamic characteristics of an aeroengine's rotor system were discussed.It is shown that an additional damping effect,an additional stiffness effect and an additional un-periodic exter... |
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| Keywords: | modeling rotor dynamics maneuvering flight rotor base motion |
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