航空弹药铁路运输振动响应模型及影响因素分析

Aviation Ammunition Vibration Response Model and Influence Factors Analysis of Railway Transportation

振动对弹药是一个持续的作用过程,主要由各式各样的轨道不平顺综合作用而成;为提高安全性,以某型弹药为研究对象,建立了弹药系统的二自由度振动力学模型;通过实测的加速度信号进行分析,得到弹药系统的动力学参数,并通过施加高斯白噪声激励信号,分析弹药包装对振动的影响;结果表明:通过适当增加弹药包装的质量,选取与弹药本身阻尼比值较小的材料能减少弹药在铁路运输过程中的振动;为该型航空弹药的包装防护和运输提供一定的决策参考。

Vibration on the role of ammunition is a continuous process, which consists of all kinds of track irregularities. In order to improve the security, to a certain type of ammunition as the research object, a two degree of freedom vibration mechanics model of ammunition system is established. The kinetic parameters of ammunition system are obtained by analyzing the measured acceleration signal, and the influence of the ammunition packaging on vibration is analyzed through applying the Gaussian white noise excitation signal. The results show that the ammunition vibration in railway transportation can be reduced by increasing the quality of ammunition package and reducing the damping ratio of ammunition itself. It will provide some reference for the packing, protection and transportation of the aviation ammunition.