Pressure decouple effect of eccentric decouple charge blasting is researched according to cement mortar model testing , meanwhile comparable testing of smooth blasting of eccentric and centric charge is researched on rock with sonic velocity evaluation in this paper 摘要通过水泥沙浆模型试验研究了偏心不耦合装药爆破的偏心效应，同时在石灰石块体上通过岩石声速评价对比试验，研究了药柱偏心和同心的光面爆破。
Abstract : under the condition of using the polydimethylsiloxane as adhesive , a new ignitio n composition and its column preparation are studied ; analyses and tests have be en made to the effect of powder performance and quality , and thus the key technol ogy is solved 文摘:研究了以聚二甲基硅氧烷为粘合剂和可燃剂的新型点火药配方及其药柱的制备工艺；对影响药剂性能、质量的因素进行了分析试验，解决了成形工艺中的技术关键。
To study the acoustic unsteady combustion of srm , built the acoustic model of chamber . deduced the little amplitude sound wave 3d equation , used the finite volume discrete method to simulate . got the vibration model of three kinds of chamber 为研究固体火箭发动机声不稳定燃烧特性,建立了燃烧室内声学特性分析的物理数学模型,推导了小振幅声波三维波动方程,采用有限体积离散方法进行仿真,得到圆柱型、四片翼柱彤和五片翼柱型药柱三种燃烧室形状声学振动基本模态
The antiablation of silicone rubber liner can be improved both by changing the structure of unvulcanized rubber and adding antiablative fillers , and the bond strength between propellant charge and the liner would be increased largely by coating the primer liquid on the charge surface 硅橡胶包覆层中填料的粒径对硅橡胶的补强效果十分重要；可从改变生胶结构、添加耐烧蚀填料两方面来改善硅橡胶包覆层的耐烧蚀性；在推进剂药柱表面上涂覆底涂液可以大幅提高硅橡胶包覆层与推进剂的粘接强度。
Considering with the calculating results , redesigning can be performed as desire until reaching at the satisfied result . moreover , the paper describes the design of several kinds of popular grains , for instance : monotramonous grain and starlike grain , and obtains computer program . it offers more convenient approach 本论文还论述了几种常用药柱的设计，如单孔管状、星孔装药等的传统设计理论，并将设计过程进行了计算机实现，为一般常见药柱的设计提供了更方便的途径。
By comparing with stochastic structural analysis , relations between the two methods have been found . the response surface method is used to obtain the second order estimates of the calculated results bound . by means of viscoelastic stochastic finite element method , the instantaneous reliability , the first passage reliability and fuzzy reliability of srm grain are investigated 采用凸集合模型表示药柱参数的不确定性，在粘弹性有限元摄动分析基础上进行了结构的响应区间计算，讨论了概率方法和集合理论模型得到的响应区间之间的关系，利用响应曲面法进行了区间的二次估计。
4 . in order to further improve and raise storage , energy and combustion properties of boron - based fuel - rich solid propellant , while the present slurries of boron - based fuel - rich solid propellant can be cast and cured to form defect - free propellant grain , ap grading and metal fuels changing including variety and addition amount have been adjusted and investigated . the result shows that , after the adjustment , all the slurries can be cast to obtain structural perfect propellant grain which may be used to test various propellant properties 4 、为了使现有含硼推进剂的燃烧等性能进一步提高和改善，同时为了能使现有含硼推进剂药浆浇铸后得到结构完整性和均匀性更好的药柱，在2 、 3研究的基础上，对ap的级配、低燃点金属燃烧剂的品种和加入量等进行了较深入的研究，结果表明：这些组分进行调节后的各药浆的流平性变化均能满足浇铸要求，并制成能进行推进剂其它性能测试的小方坯。
The main purpose of this paper is to establish viscoelastic stochastic finite element method and non - probabilistic method for uncertain structural analysis of srm grain . several reliability models are analyzed and structural response of srm grain with random parameters under different loads is investigated 本文重点建立了固体药柱不确定结构分析的粘弹性随机有限元方法和非概率方法，研究了药柱的结构可靠度计算问题以及不同载荷作用下具有随机参数药柱的结构响应问题。
It has a large region of application in solid rocket motor grain design and has made new improvements compared with other available codes . user can easily and rapidly build his initial grain shapes and then obtain geometric information of his design . according to the theory describeds in the paper , the regressions of the burning surface area and the pressure are obtainded 该系统扩展了固体火箭发动机装药的设计能力，用户可利用它简捷地构造出三维药柱的初始形状，并获得设计所需的各个几何参数，进而依据本论文提出的复杂三维药柱内腔燃烧推移和燃面计算的方法，计算出燃面变化和压强变化，得到推力随时间变化的曲线，再依据这些计算结果进行再设计，直至达到满意的结果为止。
The main work and achievements are summarized as follows : based on herrmann variational principle and the nearly - incompressible viscoelastic constitutive relation , a new type of viscoelastic incremental finite element method is presented . in this method , incremental arithmetic is applied to solving the hereditary integrals . it needs less memory space , has simple parameter matrix , and calculates stiffness matrix only once 主要研究内容如下：从herrmann变分原理出发，基于适用于近似不可压缩材料的粘弹性本构关系，利用增量法处理遗传积分，发展了一种粘弹性增量有限元方法，所需存储空间较少，参数矩阵形式简单，求解过程只需要形成一次刚度矩阵，适用于药柱的结构计算，奠定了确定性分析基础。
