Research on Fuze Dynamic Response and Magnetic Field Features for High Speed Self-Sharpening Penetration Warhead
With the rapid development of current military technology,it is of enormous strategic value for high-speed self-piercing warheads in destroying deeply buried high-value hard targets and multi-layer buildings.This article presents dynamic response and magnetic field analysis models to deeply study the mechanical and magnetic field response characteristics of the fuses,with self-pierc-ing warheads penetrating 6mC40 concrete targets and multi-layer reinforced concrete targets,which provides a support for improving the damage accuracy of self piercing warheads.In the dynamic response of fuses,during the process of the warhead penetrating a con-crete target,the eroded target presents a funnel shape.As the warhead penetrates deeper,the sparse effect of stress waves gradually weakens,and the velocity of the warhead linearly decays.In the final process of entering a stable penetration mode,the velocity de-creases by about 52％.Due to the transmission and superposition of stress waves within the warhead,it causes the oscillation of the overload signal detected by the fuse position.In the fuse magnetic field analysis,with a geomagnetic inclination angle of is 90° and ge-omagnetic declination angle of 0°(i.e.the geomagnetic field is perpendicular to the centerline of the target plate),the amplitude of the X and Y axis magnetic flux density is small,the signal is irregular,and the interlayer characteristics are not obvious;The Z-axis magnetic flux density has the characteristics of large amplitude,regular signal,and obvious interlayer.The stronger the geomagnetic field,the larger the radius of the steel bar,the greater the geomagnetic inclination angle,and the more obvious the signal characteris-tics of penetrating the target layer will be.And the Z-axis magnetic flux density is not affected by the geomagnetic declination angle.
high speed penetrationself-sharpening warheadpenetration fuzedynamic responsemagnetic field feature
万方数据
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