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首页> 外文期刊>IEEE Transactions on Magnetics >E/M launcher vibration and acceleration data analysis
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E/M launcher vibration and acceleration data analysis

机译：E / M发射器振动和加速度数据分析

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The main premise originally assumed as the cause for noise was the vibration caused by the barrel and projectile. This vibration was studied and removed. It is apparent that multiple sinusoidal vibrations are present. In a given object, a vibrational mode is induced with a frequency that depends on the object's physical dimensions and on the velocity of the propagating wave through the material or medium of that object. However, the rails could be considered as being positioned on a uniform and soft base which supports the rails from breech to muzzle. Any barrel fiber frequency mode would not be apparent in the accelerometer trace, nor would the rail effects. The projectile provides a filtering medium which would favor only the modes that it could uphold. The projectile has the greatest influence on this data, as was apparent in the frequency analysis. It is sufficient to run a low-pass filter on the data up to the fundamental mode of the projectile.
机译：最初假定为引起噪声的主要前提是枪管和弹丸引起的振动。研究并消除了这种振动。显然存在多个正弦振动。在给定的对象中，将以一定的频率感应振动模式，该频率取决于对象的物理尺寸以及通过该对象的材料或介质的传播波的速度。但是，可以将这些滑轨视为位于均匀柔软的基座上，该基座支撑着从后膛到枪口的滑轨。在加速度计迹线中，任何桶形光纤频率模式都不会明显，铁轨效应也不会。弹丸提供了一种过滤介质，该过滤介质只会偏爱它可能坚持的模式。弹丸对此数据的影响最大，这在频率分析中显而易见。在数据上运行低通滤波器，直到射弹的基本模式就足够了。

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