力学的

A secondary solution technology for determining the pre-stressed state and unstrained state of the cable structures is proposed, and the effect of the elastic deformation and self-weight of the structure can be involved in the analysis automatically.

建立了一种模拟钢结构吊装可动体系的力学模型，在此基础上提出了其平衡状态确定的一种优化迭代算法，可精确模拟吊装可动体系空间姿态和力学状态的演变历程。

The nonlinear mechanical model of contact between soil particles was established based on the effects of liquid bridges on mechanical microstructure of soil and the basic Distinct Element Method theory. The dynamic behaviors of dry soil ahead of the bulldozing plate with different cutting angles were simulated by DEM.

根据液桥对土壤微观力学结构的影响，在传统离散单元法理论的基础上，建立了土壤颗粒接触非线性力学模型，并对不同切土角推土板前端干土壤的动态行为进行了离散元模拟。

Preliminary study on mechanical properties of soil was done by PFC3D numerical simulation through endowing appropriate micro-properties.

通过大量的颗粒流数值试验，从细观力学角度对砂土的工程力学特性进行了初步的模拟研究。

During overpassed 20 more years, as a kind of new experimental technology, small punch test for measuring small size specimens has been developed to evaluate the material mechanical properties of in-service equipments. It is already used to determinate the elastic modulus, yield stress, plastic properties, endurance strength, ductile-brittle transition temperature, fracture toughness, creep properties, plasto-viscous properties and so on.

20多年以来，采用小型试件的小冲杆试验技术来测量在役设备材料的各种力学参数已经取得了很大进展，这个方法已经用来确定材料的弹性模量、屈服强度、塑性性能、抗拉强度、韧－脆转变温度、断裂韧度、蠕变性能和黏塑性性能等各种力学性能。

Because there is no standard of fracture mechanics experiment for rocks, before applying the new method to study anti-plane shear crack, testing experiments had been carried out by using it on universal testing machine Instron 1185 to measure the values of Kic and Kiiic for rocks (Black Gabbro, Carrara Marble, Tennessee Sandstone), which had been obtained by using other experiment methods and technology before.

因为对于岩石还没有相应的断裂力学实验规范。因此在把本装置用于岩石反平面剪切裂纹研究之前，先用它对已经用其它技术测定了断裂力学常数，K〓，的岩石(Black Gabbro，Carrara Marble，Tennessee Sandstone)在Instron 1185万能试研机上用该装置进行了相应的K〓，K〓等测定。

The appearance of high-speed and super- high-speed elevator s bought various aerodynamic problems; one of these problems is the encounter process of elevator car and counter-weight in the hositway channel.

高速以及超高速电梯的出现带来了一系列的气动力学问题，轿厢和对重交错过程中的气动力学问题便是其中之一。

The effects of La-Pr-Ce mischmetal on the microstructure and mechanical properties of the testing cast Mg-7Li-1Al alloys have been investigated by means of mechanical property measurement,optical microscopy,scanning electron microscopy and X-ray diffractometer.Influence of the aging treatment on microstructure and mechanical properties of the test Mg-7Li-1Al-xLPC alloys have-been studied.Similarly,heat treatment strengthening mechanism of cast Mg-7Li-1Al-xLPC alloy and strengthening mechanism of La-Pr-Ce mischmetal cast Mg-7Li-1Al has also been discussed in depth.

通过进行力学性能测试试验，并采用光学显微镜、扫描电镜、X射线衍射仪等现代材料分析测试手段，研究镧镨铈混合稀土对Mg-7Li-1Al合金组织和性能的影响；分析时效处理对Mg-7Li-1Al-xLPC合金组织和力学性能的影响程度；并且探讨了镧镨铈混合稀土对Mg-7Li-1Al合金以及时效处理对Mg-7Li-1Al-xLPC的强化机理。

The mechanical property of cutter blade is an important factor that influents cutter properties of road milling machine.

刀身力学性能差是制约我国路面铣刨刀具性能提高的关键因素之一，文中介绍了一种采用模锻技术提高刀身力学性能的新工艺方法，重点介绍了该工艺方法中工序设置及关键装备—锻模的设计。

A detailed analysis on interference fit of hub was carried out by means of elastic mechanics and finite element method, in view of the above, the shortcomings of elastic mechanics method and the advantages of finite element method have been pointed out.

用弹性力学和有限元方法对轴毂过盈联接进行了详细的分析，据此指出了弹性力学方法的弊端和有限元方法的优势。

The simple calculation for stress isolines is brought about by a spline interpolation method,as well as the distributions of stress trace are given,which can provide more simple and direct stress field for designers.

混凝土重力坝应力计算的主要方法是理论计算法，分为材料力学法、弹性理论法和弹塑性理论法，但材料力学法至今仍被认为是计算重力坝应力和设计坝剖面的基本的常用方法[1，2]。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。