装药

The results indicate that: the cavity radius becomes stable at approximately 6000μs;the blasting pressure waves mainly are transmitted horizontally;the peak pressure has a negative logarithm relationship with distance perpendicular to the charging bisector;and the valid influence area r.

应用ANSYS/LS-DYNA有限元程序对条形装药黄土地基中爆炸过程进行了三维数值模拟，发现在6000μs爆炸空腔已基本稳定，条形装药爆炸产生的压力波以水平方向传播为主，装药中垂线方向爆炸产生的峰值压力与离中垂线距离呈负对数关系，土的有效影响范围半径大约为爆炸后形成的空腔半径的4倍。

The results of interior ballistic theoretical simulationindicates that the single PSS charge application need propellants be provided with upperburning rate, adopting PSS and traditional model frame propellants commix charge is apractical applied technique approach.. By optimizing the PSS model frame parameter, wecan obtain "flat roof" domino offect with better even peak value "double peak" p-tcurve. Comparing with current 19 hole propellants charge with the best increasing burningsurface characteristic, the muzzle velocity of projectile can be enhanced about 55m/s, andthe instruct pressure efficiency can be enhanced about 5.7％.

内弹道理论模拟结果表明，PSS发射药单一装药的应用，需要发射药具有较高的燃烧速度，采用PSS发射药与传统药型的混合装药，是目前PSS发射药实际应用的技术途径，通过药型参数的优化可获得"平台"效应更好的等峰值的"双峰型"P～t曲线，与现有增面性最好的19孔发射药装药相比，弹丸初速可提高55m／s左右，示压效率高5.7％左右。

The charge weight, charge placement and depth of charges are important factors in design of explosive compaction for saturated loose sand.

装药重量、装药形式、装药的深度是爆炸法密实饱和砂地基设计中比较敏感的设计参数。

The essential content of this model is that the real combustion law of the charge is reflected by experimental functional relationship of producing rate of propellant gas and pressure, and the combustion process of the charge in closed-bomb is divided into progressive and digressive burning process by using the judge of relative pressure impulse Z, then the whole combustion process of the charge is applied in the interior ballistic calculation.

该模型的本质内容是用实验的〓～P反映装药的实际燃烧规律，通过相对压力冲量Z对分裂点的判断，将装药在密闭爆发器中的燃烧划分为增面燃烧和减面燃烧两个阶段，并对应的将其应用到装药计算的全过程中。

Couple charge and uncouple charge are the two forms of structure of bore charge, the latter often applies air-uncouple and water-uncouple forms.

炮孔装药结构分为耦合装药和不耦合装药，后者因不耦合介质不同由可分多种不耦合装药形式，较常用的是空气不耦合装药和水不耦合装药。

Existing calculation methods for burning surface don't well agree with the experimental data with complicated grain. In order to eliminate the error, tests data are used to correct the prefigurative result generally, and it is impossible to calculate burning surface of grain with crack.debond and wtith changing burning rate of propellant.

目前现有的固体装药燃面算法，在计算复杂装药燃面时仍有较大误差，为消除这种误差往往需要用试车结果给予修正；同时在计算含缺陷装药燃面和处理装药因批次燃速变化时的燃气加质更是束手无策。

The experiment and study of the bridge earthquake resistance beam crevice buffer materials ;2. In condition of the simulation test about the evaluation on impact loading on the explosive charge, several buffer materials of the power propellant charge of warhead are tested.

在&炸药装药抗高冲击过载评估技术研究&模拟试验软硬件条件下，对某战斗部火药推进剂装药几种缓冲材料性能进行试验测试研究，并对试验结果进行了分析和讨论，从而为某战斗部装填火药推进剂装药缓冲材料提供可靠依据。

According to the character of the B/KNO3 fire composition,three igniters with different charging structure are comparative tested and analyzed,and aimed at the parameters of the electric igniter,calculation and design are made for the ignition charge,intermediate charge and igniter charge ring,then the charging structure of electric igniter for a certain solid rocket motor is determined.

基于B/KNO3点火药的特性，采用三种不同药型的点火具装药进行对比试验和分析，并针对电点火具的性能指标要求，分别对传火药、过渡药、点火药环进行了计算和设计，确定了适用于某固体火箭发动机用电点火具装药的药型。

From these original, rough calculations, designers can figure out how large of a powder charge is needed, based on existing powder, and then complex mathematical calculations can determine how thick the barrel has to be to withstand this charge, and how long the barrel must be so that the powder is done burning just as the shell exits the barrel.

对这些现有的大炮进行粗略的计算，设计者们可以算出，基于现有的发射药，需要多少的装药量。然后复杂精确的计算可以测定火炮身管需要怎样的厚度来承受这些装药的威力，需要怎样的长度以便使装药在炮弹出镗的时候刚好燃尽。

Taking the demolition of a large sewage tank as an example, the design of blasting parameters, unit-area load, a reference-area for load and the principle of selecting total reference-area, the calculation of total load, charge structure, priming network and others are discussed.

以拆除一大型污水处理池为例，讨论了爆破参数的设计、单位面积装药量的确定、选取装药基准面和确定装药基准面总面积的原则、总装药量的计算，以及装药结构和起爆网路等；并简述了这种方法的爆破机理。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。