Experimental Study on The Dual-rotor Dynamics of Aeroengine Subjected to Maneuvering Conditions
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摘要:
利用基础运动的航空发动机双转子模型实验台分别模拟飞机在进行俯仰运动、横滚运动和偏航运动时系统的振动,研究了机动飞行对双转子系统的动力学特性的影响。实验结果表明,飞机作横滚匀速运动、俯仰匀速运动时在内外转子上产生的瞬态附加离心力和附加陀螺力矩对系统振动瞬态幅值有很大的影响,总结了不同机动飞行条件对航空发动机双转子的动力学响应的影响特点。
Abstract:By using a model experiment rig of dual-rotor system of aeroengine under base movements,the dual-rotor system vibration when an aircraft is in hovering,pitching and rolling motion is simulated,the influence over dynamic characteristics of the dual rotor system under maneuvering conditions is studied. The experimental results show that the transient aircraft additional centrifugal force and gyroscopic moment generated in the internal rotor and the external rotor in rolling and pitching motion have a great influence on the system transient vibration amplitude,the dynamic response influence characteristics of the dual-rotor of aeroengine under different flight conditions is summarized.
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Key words:
- aero-engine dual-rotor /
- aircraft engines /
- angular velocity /
- computer simulation
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