弹

And then, the change of elastoplastic matrix, parameters of material mechanics performance with temperature were considered, from thermal elastoplastic constitutive relation and applying the theory of thermal elastoplastic increment, the theoretical finite element equation was established.

考虑了弹塑性矩阵、材料的力学性能参数随温度变化的因素，从热弹塑性本构理论出发，应用热弹塑性增量理论建立了热弹塑性有限元方程。

This paper describes the structure of a composite sabot, include the meshing structurebetween sabot and penetrator and the structure of configuration.

中文摘要：本文研究短纤维复合材料穿甲弹弹托的结构，包括弹托与弹芯的啮合结构和弹托外型结构。

This paper takes one low-speed-circumgyrate rocket with a empennage asa research object, set up a relevant reference frame, analyse the strength andmoment on the amended rocket, ratiocinate the sports equation with 6 DOF; analyse the factors which cause terminal windage between pratical trajectoryand fiducial trajectory, take certain rocket for example, make use of theemluator on the influence of estimating precision caused by measuredinformation, find the speed, the trajectory obliquity, the trajectory setoverand the coordinate are the sensitive factor arosing terminal windage of thetrajectory; introduce the developing status of detecting technique, and basedon the actuality, choose the radar in the ground as measure equipment; simplydesign and analyse the setting and inflame control of the impulse engine onthe amended rocket; design the amend method and validate its feasibility takingthe use of emluator.

本文以某型低速旋转尾翼火箭弹为研究对象，建立了相应的坐标系，详细的分析了作用在弹道修正弹上的力和力矩，由动量定理和动量矩定理推导出了在一般形式下的弹道修正弹的空间六自由度的运动方程；对引起弹道落点偏差的因素进行了分析，以某口径火箭弹为例仿真了可测信息量对估算精度的影响，发现速度大小、弹道倾角、弹道偏角和位置坐标是引起落点偏差的主要因素；对弹道探测技术发展现状作综合性阐述，并基于现状，选用地面火控雷达作为测量装置；对弹道修正弹上脉冲推力器的安装和点火控制方法进行了简要的设计与分析；设计了弹道修正弹指令修正的修正方法，通过数字仿真验证了方法的可行性。

This paper discusses the yield function, loading unloading criterion and constitutive equation of Lagrangian finite deformation elastic-plasticity theory. Finally, Lagrangian finite elastic plasticity theory is used on constitutive models of elastic-plasticity at infinitesimal strain, and the complete constitutive relation for singular yield surface theory is obtained.

本文讨论了Lagrange型有限变形弹塑性本构理论的屈服函数、加卸载准则、本构方程等，最终将Lagrange型有限变形弹塑性本构理论应用于小变形情况下的奇异屈服面弹塑性模型，得出了完整的Lagrange型有限变形弹塑性本构理论。

By using the transfer matrix method of multibody system, the hard problem of computation of the vibration characteristics of LRMLRS coupled with rigid bodies and elastic bodies is solved which is very difficult to the ordinary dynamic methods, and the vibration characteristics of LRMLRS which is varied when the number of rockets in the launch device is varied, is obtained conveniently. By developing augmented eigenvectors of the LRMLRS and its orthogonality conditions, the nonorthogonality problem of the multibody system including rigid bodies and elastic bodies is solved and the exact analysis of the dynamics response of the LRMLRS including rigid bodies and elastic bodies is realized. By using the random integer programming method, the hard optimization problem which contains continuous variables, discrete variables and random variables at the same time is solved. This method provides a technology for optimum design with random variables and discrete variables. The dynamic optimum design is realized to decrease the number of rockets consumption in the LRMLRS test. The simulation system of dispersion of fire is established by using the maximum entropy method to estimate dispersion of fire.

通过应用多体系统传递矩阵法，解决了刚弹耦合远程多管火箭多体系统振动特性这一通常力学方法不便于解决的计算难题，方便地获得了远程多管火箭振动特性及其随发射架上火箭弹个数变化而变化的情况；通过构造增广特征矢量及其正交性条件，解决了刚弹耦合多体系统特征矢量不具有通常意义下的正交性的难题，实现了对刚弹耦合远程多管火箭动力响应的精确分析；应用随机整数规划法，解决了同时考虑连续、离散和随机变量等多种设计变量的优化设计难题，为含随机和离散变量的优化设计提供了手段，实现了减少远程多管火箭试验用弹量的动态优化设计；建立了应用最大熵法估计的密集度仿真系统，优化射序和射击间隔，实现了提高远程多管火箭射击密集度的动态优化。

Based on researchful results of two former students, we take the influences of thermochemistry reaction, mutual disturb and unsymmetrical instance into account. Secondly, the paper simulates the transient thermal response of projectile according to the simulation software, and discuss the ablation regulation when the projectile is in different initial velocity, in different shape, in different angle of attack condition and in different material condition. Thirdly, the effect on the aerodynamic characteristic and the outer ballistic characteristic after the ablation of hypersonic projectile has been analyzed.

在前面两位师兄研究成果的基础上，研究了超高速弹箭组合体在考虑热化学反应、存在攻角影响下的的气动加烧蚀数学模型；然后对不同条件下的烧蚀过程进行计算，分析和总结出在不同外形和不同材料条件下弹体和弹翼的烧蚀规律；紧接着分析了在不同的烧蚀情况下，它对飞行中弹箭的气动力和外弹道特性的影响，从而为今后的超高速弹箭设计提供指导和帮助。

And, we selected some representative species of Collembola and representative groups of Protura, Diplura, Insecta and Arustacean to sequence and analyze their 18S rRNA completely gene sequences, 28S rRNA D6-D7 domain and nearly completely gene sequences to make the studies about the phylogeny relationships of the main families and orders of Collembola, discuss the questions such as the reliability about the new four orders system to Collembola, the monophyletic and ordinal phylogenetic relationships of them and the situation of the special groups, the phylogenetic relationships about Collembola with other groups and the evolution of Hexapod.

同时选取弹尾纲的代表种类和原尾纲、双尾纲、昆虫纲、甲壳动物等节肢动物部分类群，进行了18S rRNA基因全序列和28S rRNA基因D6-D7区以及近全长序列的测定、分析，对弹尾纲重要科属的亲缘关系、进化地位进行分子系统学研究，讨论弹尾纲最新分类系统中四目的确定性、各目单系性、四目的系统关系、特殊类群的分类地位，以及弹尾纲和其它类群之间亲缘关系、六足动物进化等问题。

The results show that the influence for the antenna pattern due to truncation of the missile body is very small,thus the truncating handle for the missile body is entirely possible in the antenna measurements.

结果表明，弹体截断对弹载天线辐射特性的影响很小，完全可以在弹载天线的测量中对弹体进行截断处理。

In order to detect whether there is a base gap between the explosive charge and the inner cone of a shell and ensure its fighting performance, this paper puts forward an ultrasonic inspection method of base gap based on the principle of conservation of sound flux in propagation and according to the special construction of the shell .

为了检测出弹体装药与内锥面之间底隙的有无，以确保弹体的战斗性能，本文在超声波传播过程中声通量守恒原理的基础上，根据弹体结构的特殊性，提出一种利用超声波检测弹体内锥面底隙的方法。

There are self-protection spray series, 37mm antiriot series, 38mm antiriot series, 48mm antiriot series, 64mm antiriot series, tear gas grenades, cxplode tear grenades, giddy or flash grenades, kinetic energy grenades, color smoke grenades, anti-riot equipments special for finance system and so on.

包括：系列自卫喷射器；37mm系列防暴弹；38mm系列防暴弹；48mm系列防暴弹；64mm系列防暴弹；燃烧型催泪弹；爆炸型弹药；声光型弹药；动能型弹药；彩色烟幕弹药；金融系统专用防暴器材等。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。