vibration-test rocket

In this paper, the influence of thrust and air drag on rocket lateral vibration is studied, and the frequency reduction under the thrust and drag is analyzed. The formulas for evaluation of the changes of frequencies and vibration modes are obtained.

文章重点讨论了推力和空气阻力对火箭横向振动频率和振型的影响，分析了在推力和阻力作用下频率降低的原因，给出了推力对振型频率影响的估计式。

The influence of structure axial vibration on the internal ballistics of solid rocket motor was investigated.

文中研究了固体发动机结构的轴向振动对燃烧室内弹道性能的影响.

Control of the Hydraulic Motor on Torsion Impact Vibration of Rocket Launcher

液压马达对发射装置扭转冲击振动的控制

The time history of angular rate includes three stages which are rocket moving in tube, exhausted flow impacting and free vibration after impacting.

其时间历程包括发射时弹体在管内运行、燃气对定向器束冲击及冲击后定向器束自由振动的振动角速率。

A heavy hammer or a small type of rocket is used to strike the pile top and the detectors are used to record vibration graphs.

用重锤或小型火箭筒冲击桩顶，用检波器记录振波图。