单旋翼无人机云台振动试验研究

Research of the single rotor UAV gimbal vibration test

单旋翼无人机机载设备受振动影响会导致无人机姿态不稳,对此进行了试验研究。选取合适的测量点,对云台起飞和飞行2个工况下的振动信号进行采集,获取云台的时域响应和功率谱密度。结合减振系统的动力学模型,提出无人机云台减振方案,通过无人机实地飞行试验表明,减振后振动时域响应和功率谱密度降低明显。该减振方案可为无人机减振设计提供有效依据。

An experimental study is conducted to investigate UAV attitude instability caused by heavy vibrations of single-rotor UAV airborne equipment.Suitable measurement points are selected,and the vibration signals under two working conditions of gimbal take-off and flight are collected to obtain the time-domain response and power spectrum density of the gimbal.Integrated with the dynamics model of the vibration damping system,the vibration damping scheme of the UAV gimbal is proposed,and the field flight test of the UAV shows the vibration time domain response and power spectrum density are significantly reduced after vibration damping.The vibration damping scheme serves as an effective basis for the design of UAV vibration damping.