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弹性机翼的振动及杆臂效应会引起机载导弹加速度计输出中的附加干扰加速度，从而引起导弹子惯导系统的导航参数误差。本文通过建立机翼弹性振动模型及惯导误差传播模型，从理论上分析了机翼弹性振动及杆臂效应对子惯导系统导航精度的影响，并进行了计算机仿真研究。
The vibration and the arm effect of the elastic wing can cause additional interference acceleration in the output of the airborne missile accelerometer, which causes the navigation parameter error of the missile sub-inertial navigation system. In this paper, by the establishment of the wing elastic vibration model and the inertial navigation error propagation model, the influence of the wing elastic vibration and the arm-arm effect on the navigation accuracy of the sub-INS is theoretically analyzed and the computer simulation is carried out.