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   emission angle 在 武器工业与军事技术 分类中 的翻译结果: 查询用时:0.173秒
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emission angle
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    The relation among the deviation of landing point, latitude and emission angle is discussed considering the effect of Coriolis force on the guided missile.
    考虑地球自转时,定量讨论了导弹在柯氏力作用下,弹着点的偏差与纬度及发射角的关系
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    Using the gridless smooth particle hydrodynamic(SPH) numerical technique of AUTODYN-2D hydrocode,the characteristics of behind armour debris(BAD)cloud originating from normal impact of cylindrical tungsten projectile on a rolled homogeneous armour plate at velocities ranging form 1.5 to (2.5 km/s) are simulated. From the simulations the target hole diameter,cloud frontal velocity,lateral expansion velocity and maximum emission angle of BAD were obtained for several impact velocities.
    采用AUTODYN-2D无网格光滑粒子流体力学方法(SPH)数值技术,对遭遇速度为1.5~2.5km/s下圆柱钨弹丸垂直碰撞装甲靶板产生的二次破片云分布特征进行了数值模拟,获得了不同碰撞速度下靶板穿孔直径及破片云前端运动速度、侧向膨胀速度和最大飞散角等分布特征.
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  emission angle
The differential cross sections are calculated as functions of the pion emission angle and amplitudes of the s- and p-wave multipoles for the threshold pion electroproduction on protons at the squared momentum transfer k2 = 0.05 GeV2/c2.
      
The cross section for two-photon bremsstrahlung is integrated over the electron scattering angle and the (common) emission angle of the bremsstrahlung photons.
      
It is also shown that the scattering of the electrons depends on their emission angle.
      
We derive an equation for these boomerang photons and an equation for the emission angle.
      
The neutrons were obtained from the D (d, n) He3 reaction with an initial deuteron energy of 1 Mev and a neutron emission angle of 110 °.
      
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Particular emphasis is laid upon a study on the optimization of the surface contour of explosive charges of fragmentation warheads.Mathematical descriptions are given for the relationship between the surface contour of explosive charges and the characteristics of fragments (viz.formation of fragments from the casing,fragment emission,e.g.emission angle and distribution belts width etc.).The mathematical models for estimating structure and power parameters of fragment warheads are estab-lished,using the...

Particular emphasis is laid upon a study on the optimization of the surface contour of explosive charges of fragmentation warheads.Mathematical descriptions are given for the relationship between the surface contour of explosive charges and the characteristics of fragments (viz.formation of fragments from the casing,fragment emission,e.g.emission angle and distribution belts width etc.).The mathematical models for estimating structure and power parameters of fragment warheads are estab-lished,using the surface contour of circular and logistic spirals.An optimum structure of fragment focusing warheads is designed under the assumption of fragment emission and power radius.Experimental results are in agreement with theoritica1 calculations on fragment emission.

侧重研究了破片式战斗部装药外形的优化设计技术。提出了装药外形与破片飞散特性(如破片飞散角,分布带宽等)之间的数学描述;建立了圆弧和对数螺线装药外形母线与战斗部其他设计参数间的数学模型。在假定约束条件下,优化设计了破片聚焦式战斗部的结构参数;静爆试验结果表明,破片分布与理论计算吻合较好。

The relation among the deviation of landing point, latitude and emission angle is discussed considering the effect of Coriolis force on the guided missile.

考虑地球自转时,定量讨论了导弹在柯氏力作用下,弹着点的偏差与纬度及发射角的关系

Using the gridless smooth particle hydrodynamic(SPH) numerical technique of AUTODYN-2D hydrocode,the characteristics of behind armour debris(BAD)cloud originating from normal impact of cylindrical tungsten projectile on a rolled homogeneous armour plate at velocities ranging form 1.5 to (2.5 km/s) are simulated. From the simulations the target hole diameter,cloud frontal velocity,lateral expansion velocity and maximum emission angle of BAD were obtained for several impact velocities. Based on the results...

Using the gridless smooth particle hydrodynamic(SPH) numerical technique of AUTODYN-2D hydrocode,the characteristics of behind armour debris(BAD)cloud originating from normal impact of cylindrical tungsten projectile on a rolled homogeneous armour plate at velocities ranging form 1.5 to (2.5 km/s) are simulated. From the simulations the target hole diameter,cloud frontal velocity,lateral expansion velocity and maximum emission angle of BAD were obtained for several impact velocities. Based on the results of simulations,an analytical model predicting the mass distribution and spatial distribution of BAD cloud was setup. The results of both simulations and model predictions showed a good agreement with the experimental values.

采用AUTODYN-2D无网格光滑粒子流体力学方法(SPH)数值技术,对遭遇速度为1.5~2.5km/s下圆柱钨弹丸垂直碰撞装甲靶板产生的二次破片云分布特征进行了数值模拟,获得了不同碰撞速度下靶板穿孔直径及破片云前端运动速度、侧向膨胀速度和最大飞散角等分布特征.在此基础上,建立了二次破片云质量及空间分布预测模型.结果表明,数值模拟和模型预测均与实验结果相吻合.

 
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