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首页> 外文期刊>Journal of Aircraft >Smart Spring Control of Vibration on Helicopter Rotor Blades
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Smart Spring Control of Vibration on Helicopter Rotor Blades

机译:直升机转子叶片振动的智能弹簧控制

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摘要

Numerical simulation results indicated that the Smart Spring is a structural control device able to attenuate helicopter rotor higher-harmonic loads transmitted to the fuselage through the pitch link. The Smart Spring does not affect the rotor trim, collective and cyclic control commands if it is tuned to internally resonate at the rotor higher harmonic frequencies that are the objective of control. The force transmitted through the pitch link with the Smart Spring was verified to be 44% of the original value at 4/rev and 62% of the original value at 8/rev, which may be considered modest compared with other active vibration reduction approaches used in rotorcraft.
机译:数值模拟结果表明,智能弹簧是一种结构控制装置,能够衰减通过俯仰连杆传递到机身的直升机旋翼更高谐波的载荷。如果将智能弹簧调整为在转子内部以控制的较高谐波频率谐振,则不会影响转子微调,集体和周期性控制命令。经验证,通过节距连杆通过智能弹簧传递的力在4 / rev时为原始值的44%,在8 / rev时为原始值的62%,与使用的其他主动减振方法相比,该力被认为是适中的在旋翼飞机中。

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