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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.
A unified model of unbalanced multi-disc, multi-mass and multi-bearing linear and nonlinear flexible rotor system dynamics was established by using Lagrange equation when the aircraft was installed at any position on the aircraft in any space maneuvering flight. The space maneuver of the aircraft was discussed. Flight on the dynamic characteristics of the engine rotor system.The results show that the aircraft's maneuvering space flight not only generates non-periodic additional external excitation force on the rotor system of the engine, but also produces additional damping and stiffness effects, which not only The size of the orbit of the rotor system will be affected and the center of the orbit of the rotor system will be deviated so that it may cause partial impact between the rotor and the stator of the rotor system.Therefore, when analyzing the dynamic characteristics of the aeroengine rotor system, Influence of Aircraft Mover on Dynamic Characteristics of Rotor System.