基于三轴数字加速度计的尾翼振动测试系统研究

针对导弹发射过程中尾翼身处高温、高压、高过载等恶劣环境时的振动信号难获取和实测信号失效等问题,利用动态存储测试技术和三轴数字加速度计,设计了一种基于ADXL345三轴数字加速度计的尾翼振动测试系统。具体通过选择适宜的尾翼振动测试加速度传感器,构建抗冲击力强的多重缓冲外层结构,成功实现了对导弹尾翼振动信号的真实采集,并通过分析采集得到的尾翼振动数据,得到了有效的振动加速度曲线和振动频谱图,为尾翼结构的改进提供了重要的依据,对今后采集尾翼振动信号的研究有着重要的意义。

Research on tail wing vibration test based on three-axis digital accelerometer

Aiming at the problems of difficulty in obtaining vibration signals and failure of measured signals in the harsh environment of high temperature, high pressure, high overload, etc. of missile tail during launch, we design a three-axis based on ADXL345 using dynamic storage test technology and three-axis digital accelerometer in this paper. Specifically, by selecting a suitable empennage vibration test acceleration sensor and constructing a multi-buffer outer structure with strong shock resistance, the real acquisition of the vibration signal of the missile empennage was successfully realized. And the effective acceleration curve and the vibration spectrogram were obtained by analyzing and collecting the vibration data of the empennage, which provide an important basis for the improvement of the tail structure, and are of great significance to collect the tail vibration signal in the future.