应用力学

With economic development, the rock material is widely applied in the water conservation、 resources mining、 the civil construction 、 the railway and so on, a lot of problem about rocks urgently is demanded to solve, so there are very important theory and realistic meanings to thoroughly research its nature、 concerning and destroying mechanism,Due to natural function, massive joint and crack with rock, though the scale of these is small, it changes mechanics nature of rock greatly and reduces deforms mould and intensity parameter, and makes it presenting aeolotropy .

随着我国经济建设的发展，岩石材料被广泛应用于水利、资源开采、土木建筑、铁路等领域，与此同时出现许多岩石方面迫切需要解决的问题，所以对其性质、本构关系、破坏机理的深入研究有重要的理论意义和现实意义。由于天然作用，岩石内部存在大量的节理和裂隙，虽然这些裂隙的规模不大，但裂隙的存在大大地改变了岩体的力学性质，使其变形模量及强度参数降低，且使岩体的力学性质呈各向异性。

The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

确定了粗粒土与结构接触面厚度约为5～6倍的平均粒径，首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性，发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化，通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分，观测到接触面受剪时表现出明显的相对法向位移，并可分解为可逆性和不可逆性两个分量；(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型，并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性；(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析，比较了不同接触面本构模型对计算结果的影响，证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性，还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。

In chapter 2,all kinds of numerical methods of computational fracturemechanics are summarized,the development histories and present situation ofboundary collocation method,boundary integral method,finite difference method,boundary element method and finite element method are expounded,and theapplication of finite element method in fracture mechanics are emphaticallydiscussed.

第二章 总结了计算断裂力学中各种数值方法，论述了边界配位法、边界积分法、有限差分法、边界元法及有限元法的发展历史和现状，并着重讨论了有限元法在断裂力学中的应用。

Application to celestial mechanics and mechanical vibrations.

天体力学和力学振动的应用。

Postulates of classical statistical mechanics, micro canonical, canonical, and grand canonical distributions; applications to lattice vibrations, ideal gas, photon gas.

经典统计力学的假定、微正则、正则和巨正则分布；统计力学在晶格振动中的应用、理想气体、光子气体。

Because of Its wide-ranging connection with many applied science, such as the quantum physics, geostatic, the figure and pattern recognition and the space telemetry and so forth, the research in quaternion algebra is valuabe.

四元数在众多的应用问题中存在广泛的联系，如四元数在量子力学，刚体力学方面的应用，在计算机图形图像处理和识别方面的应用，在空间定位方面的应用等。

Forensics:"college English class A certificate of qualification certificate of the computer level of senior drafters of the intermediate drafters of CNC lathe operator of the CNC milling machine operators GongYiYuan nc" Intern: general practice, practice, car PuXi benchwork internships, machinery, mechanical manufacturing process design of surveying and mapping, reducer, sonic experimental design, manufacture of PLC switch Major in: the nc programming and operation of CAD/CAM application technique of the application of the principle of nc MASTERCAM9.0 typical of the CNC system and electric control and application of PLC in the electrical and electronic technology ","mechanical drawing the computer drawing" of the "mechanical manufacturing technology","" the hydraulic principle and application of the technology of chip" engineering mechanics of higher mathematics in the numerical control of the secondary specialized English language C

取证：《大学英语A级合格证书》《计算机一级合格证》《高级制图员》《中级制图员》《数控车床操作员》《数控铣床操作员》《数控工艺员》实习：普车实习、普铣实习、钳工实习、机械测绘、机械制造工艺设计、减速器设计、PLC实验、声控开关制作主修：《数控加工编程及操作》《CAD/CAM应用技术》《MASTERCAM9.0应用》《数控原理及典型数控系统》《电器控制与PLC应用》《电工电子技术》《机械制图》《计算机绘图》《机械设计》《机械制造》《液压技术》《单片机原理及应用技术》《工程力学》《高等数学》《数控专业英语》《二级C语言》这个太专业了哪位好心的给帮个忙翻一下。

The Faculty of Construction concentrates primarily on the following research areas: Stability of Space Structure Unit, Analysis Methods and Design of Engineering Structure, Application of Compound Material to Civil Engineering, the Application of Finite Characteristic Ratio theory in Soil Mechanics and Application of Local Deformation and Stress Path to Poor Foundation Improvement, The Reliability Analysis and Health Monitoring of Long-span Bridge, and PIRO controlled Rock Blasting.

建设学院在一些技术领域形成了自己的特色和优势，主要研究方向为(1)空间钢结构体系的稳定理论与应用；（2）工程结构的计算分析与设计方法；（3）复合材料在土木工程中应用；（4）橡胶复合材料的力学性能与轮胎结构力学；（5）钢筋混凝土结构现场检测技术；（6）岩土有限性特殊比理论及应用、变形局部化、应力路径问题和软地基处理的理论及应用；（7）大跨度桥梁运行可靠性分析及健康检查。

The best approach was also used to inverse the mechanical parameters of rock mass surrounding the mining stopes in Xiangxi Gold Mine in Hunan Province.

将先应用遗传算法、后应用神经网络方法进行反演的智能化位移反分析方法，应用于反演确定湘西金矿老采区围岩的弹塑性模型力学参数，并应用反演结果对该区回采系统围岩的稳定性进行了数值模拟研究，研究结果表明，回采系统围岩是稳定的，回采方案是合理的。

According to the characteristics of the fuse industry and the research condition, We applied ZPrinter310 system to produce the fuze prototypes and used these prototypes to help design in the project argumentation phase, got the final project;Then we applied AFS-320 rapid prototyping system to produce the noumenon, analyzed the noumenon's precision、surface quality and performance of material mechanics in detail,based on these analytic results,we considered to use the noumenon in the fuze local performance test and some laboratory experimentations;At last we discussed how to combine the rapid tooling and precision foundry to produce batch of samples, we can apply these samples in the fuze system and ball cartridge experimentation.

本论文将快速成型技术贯穿在引信研制周期中的各个阶段，根据引信研制的特点及现有的研究条件，应用基于3DP工艺的ZPrinter310系统制造出了引信零件原型，并将原型应用于方案设计论证阶段辅助引信设计，得出了零件的最终设计方案；应用基于SLS工艺的AFS-320快速成型系统制造出了引信本体，对本体的尺寸精度、表面质量及材料的力学性能作了详细的分析，根据综合分析结果，考虑将本体直接应用于引信研制阶段的局部性能试验及部分实验室试验中；最后还论述了如何结合快速模具及精密铸造技术小批量制造引信零件应用于引信研制阶段的实验室试验及实弹试验中。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。