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首页> 外文会议>2002 ASME Pressure Vessels and Piping Conference, Aug 5-9, 2002, Vancouver, British Columbia, Canada >THE DEVELOPMENT OF THE GENERATING DEVICE FOR SHOCK WAVE
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THE DEVELOPMENT OF THE GENERATING DEVICE FOR SHOCK WAVE

机译：冲击波发生器的开发

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In order to achieve a non-contact and a non-destructive inspection system for the concrete walls of tunnel in Shinkansen railway, a new testing device is forced to be developed. We proposed a new device which consisting of the Laser Doppler Vibrometer system, and generating shock waves. This is the reason why we developed the gun which was the generating shock wave and experimented to investigate the behavior of shock wave propagation by using it We investigated shock waves in three cases of an explosive without casing, with a cylinder, and with a gun, respectively. As a result, the static overpressure and the impulse obtained in the case of using a gun were the highest among three cases. We obtained the empirical equations which represent the relation between the static overpressure and the scaled distance (m/kg~(1/3)) where in ratio of the distance and one third power of the weight of explosive. For the impulse, the empirical equations are also obtained. We obtained the static overpressure at various distances and azimuth angles from the passageway exit of the gun. The static overpressure and impulse were almost same in the range from θ = 0 °(the axis of the gun) to θ = 15 ° There was no difference between the static direct overpressure and that one reflected from a concrete board in the axis direction of the gun. We also investigated the mean velocity of propagation and the distribution of the static overpressure. We investigated to ignite nitromethane by using the triggering device using the high electric current.
机译：为了实现新干线铁路隧道混凝土墙的非接触式无损检测系统，必须开发一种新的检测装置。我们提出了一种由激光多普勒振动计系统组成并产生冲击波的新设备。因此，我们开发了产生冲击波的火炮，并尝试使用它来研究冲击波的传播行为。我们调查了三例爆炸物的爆炸波，这些爆炸物无壳，有筒，有枪，分别。结果，在使用枪的情况下获得的静态超压和冲击在三种情况中最高。我们得到了经验公式，该公式代表了静态超压与标定距离（m / kg〜（1/3））之间的关系，其中距离与爆炸物重量的比为三分之一。对于冲量，还获得了经验方程。我们从喷枪的通道出口获得了不同距离和方位角的静态超压。从θ= 0°（枪的轴线）到θ= 15°的范围内，静态超压和冲击力几乎相同。静态直接超压与混凝土板在轴的轴向方向反射的超压之间没有差异。枪。我们还研究了平均传播速度和静态超压的分布。我们研究了使用高电流触发装置点燃硝基甲烷的方法。

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