多管火箭发射过程中定向器振动特性研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (1) : 35-38,1.

论文

多管火箭发射过程中定向器振动特性研究

贺军义; 芮筱亭; 王国平; 展志焕

作者信息 +

Researched of vibration characteristic of launcher guider of MRLS in firing process

He Jun-yi; Rui Xiao-ting; Wang Guo-ping; Zhan Zhi-huan

Author information +

文章历史 +

摘要

为了在多管火箭发射过程中能获得准确的定向器管口振动特性，本文研究多管火箭发射过程中定向器管口振动特性；利用多体系统传递矩阵法和发射动力学理论，建立了多管火箭发射动力学模型和仿真系统，通过多管火箭模态试验验证了模型的正确性；仿真获得了在发射过程中定向器管口振动的时域历程，利用离散傅里叶变换(DFT)技术，获得了在发射过程中定向器管口振动位移、速度和加速度信号的频域特性；在此基础上设计了椭圆滤波器，并通过对发射过程中定向器管口的加速度采集信号的滤波前后对比，验证了本文研究内容的正确性和重要性，为多管火箭发射过程中定向器运动信号的采集和控制提供了重要参考价值。

Abstract

To obtain the vibration characteristic of launcher guider muzzle of Multiple Launch Rocket System(MRLS) exactly in the firing process, The vibration characteristic of launcher guider muzzle of MRLS was researched. The dynamic model of MRLS and the simulation system was established by using transfer matrix method of multibody system and the theory of firing dynamics, The model were validated by the mode test results of the original vibration characteristic of MLRS; The time history of vibration signals at launch guider muzzle in the firing process was obtained by the simulation system, by using the technology of discrete Fourier transform(DFT), the frequency characteristic of displacement, velocity and acceleration at launch guider muzzle in the firing process was obtained. Basing on this, the Elliptic filter was designed, and by the comparison of the acceleration signal at the launcher guider muzzle with the filter and without, the context researched is useful and important was proved, and the important reference value for the movement signals of the launcher guider of MRLS measured and controlled in the firing process was offered.

导出引用

贺军义;芮筱亭;王国平;展志焕. 多管火箭发射过程中定向器振动特性研究[J]. 振动与冲击, 2012, 31(1): 35-38,1

He Jun-yi;Rui Xiao-ting;Wang Guo-ping;Zhan Zhi-huan. Researched of vibration characteristic of launcher guider of MRLS in firing process[J]. Journal of Vibration and Shock, 2012, 31(1): 35-38,1