某型号导弹发射过程中颤动现象的分析

商霖,王亮,金晶

振动与冲击 ›› 2015, Vol. 34 ›› Issue (15) : 51-54.

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (15) : 51-54.
论文

某型号导弹发射过程中颤动现象的分析

  • 商霖,王亮,金晶
作者信息 +

The chattering analysis of missile during the launching

  • SHANG Lin, WANG Liang, JIN Jing
Author information +
文章历史 +

摘要

某型号导弹发射过程中出现了振动突然放大的颤动现象。本文通过对振动信号的时域波形分析和频域谱分析,确认导弹局部振动的突然放大是一种自激振动现象。随后,采用相平面法通过对振动加速度信号进行频域积分得到发射过程中导弹局部的运动轨迹,并根据极限环理论证明了存在颤动现象。最后,论述了导弹局部的颤动现象是由于导弹与发射箱导轨之间的摩擦力所做正功大于负功而引起的,并通过涂抹较厚的润滑剂或润滑油消除了这种颤动现象。

Abstract

The chattering of missile is happened during the launching. On account of the analysis of signal in time and frequency domain, it is assured that chattering is self-excited vibration. According to the motive state of missile that is resulted from the double integration of raw acceleration data, we utilize the theory of limit-cycle to prove again that the self-excited vibration of missile is happened. Finally, it is discussed that the chattering of missile come from the friction between missile and railway, and it is adopted to daub the lube between missile and railway for eliminating the self-excited vibration of missile.

关键词

发射动力学 / 颤动现象 / 信号分析 / 相平面法 / 极限环

Key words

The launching dynamics / Chattering / Signal analysis / Phase plane / Limit-cycle

引用本文

导出引用
商霖,王亮,金晶. 某型号导弹发射过程中颤动现象的分析[J]. 振动与冲击, 2015, 34(15): 51-54
SHANG Lin, WANG Liang, JIN Jing. The chattering analysis of missile during the launching[J]. Journal of Vibration and Shock, 2015, 34(15): 51-54

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