弹性力学

As applications, the 2nd elastic moduli are used to explain the effect of chiral angle on asymmetry behavior of torsion, and finite deformation problems of single-walled carbon nanotubes are successfully simulated by the thin shell model.

作为应用：利用面内的2阶模量解释了纳米管螺旋角相关的力学行为：扭转不对称现象。利用薄壳模型成功模拟了单壁纳米管的大变形弹性失稳行为。

The rigid and elastic wheels of tire-soil contact models are proposed based on the Bekker pressure model and the Jonasi shear soil model, and they are described in the form of S-function to enhance the calculation efficiency and simulation accuracy.

根据多体动力学在Adams环境中建立了某款工程车辆的模型，以汽车地面力学中Bekker承压模型和Jo-nasi剪切模型为基础建立了刚性轮和弹性轮模型以模拟轮胎地面接触，并将轮胎地面接触模型用S函数描述，以提高仿真运行速度和计算精度。

Based on a bounding surface model of the concrete and elastic-plasticity constitutive relationship of steel, this paper establishes the finite element model of the self-stressing concrete filled steel tube short column under axial load and eccentric load. the mechanical performances are analyzed.

对本课题组共进行的37根轴压短柱的试验结果分析，采用分解分析的方法，回归出钢管自应力免振混凝土轴压结构核心混凝土的等效单轴本构关系，与传统的弹性、塑性、断裂、损伤等力学模型相比具有简单实用的特点，便于进行工程计算。

A mechanical description of the REV related to the elastic modulus of jointed rockmasses is proposed, and an expression of the REV based on the central limit theorem is suggested.

本文论述了岩体力学性质的尺寸效应，提出了与岩体弹性参数相应的表征单元体REV的力学描述，根据中心极限定理推导了估算裂隙岩体REV 的数学表达式。

In this paper, we introduced very much and compared elasticity damper and viscous clamper more according to the wildly use in structure control at present. The result is that viscous damper be recommended.

对目前减振控制中应用较为广泛的粘弹性阻尼器和粘滞型阻尼器进行了重点介绍和对比，在自编程序中设置了粘滞型阻尼器单元的力学模型，可以模拟不同阻尼系数的粘滞型阻尼器，并导出了不可压缩流体的计算公式及给出了适用于结构流固耦合分析过程的近似算法。

Most achievements of classical soil mechanics are set up on the basis of elastic theory.

古典土力学的大部分成果是建立在弹性理论基础上的。

Then the formula of the impact force and contact time was induced,which the elastic coefficient of restitution was considered in contact time calculation.

根据赫兹接触模型和经典碰撞理论，并考虑返向器与螺母的固连关系，建立了滚珠与返向器碰撞接触的力学模型，导出了碰撞力公式，并在考虑弹性恢复系数的基础上推导出了碰撞接触时间公式。

The deformation of the wheel was defined through finite element method, and according to analysis method for elastic tyre in terramechanics, the draw bar pull force of spring wheel on lunar soil was computed and compared with that of rigid wheel. The result shows that the spring wheel can improve the lunar rover mobility performance.

通过有限元分析得到了载荷作用下的车轮变形，借鉴车辆地面力学中对弹性轮胎的分析方法，计算了车轮在月球表层松软土壤上行走时的挂钩牵引力，并与同等尺寸的刚性车轮进行了对比，分析表明弹性车轮结构将提高月球探测车行走性能。

Result:(1) The max supporting weight of saddle-backed waist splint is 90 kg in the bed exercise, applicable to people who have spine length 73cm~67cm( about body height 178cm~165cm)(2) the height of the gas filled pillow is 5cm~15cm (3) The height of the gas filled pillow should be adjusted according to different patient (4) the press on the abdomen deliver by front part of saddle-backed waist splint is 3336 kpa; Standard piece of waist line is 94cm~70cm, elastic force is 180N .

结果：﹙1﹚鞍式腰托在卧床锻炼时的最大承重量为90㎏，适用脊柱长度为 73 ㎝67 ㎝（约身高178 ㎝165 ㎝）。﹙2﹚充气垫枕的高度为5㎝15㎝。﹙3﹚针对不同病人的身高﹐应适当的调整充气垫枕的高度以及指导锻炼时的拉伸高度。﹙4﹚下地后鞍式腰托前板能给腹部压力为3336kpa；标准件的弹性腰围为64㎝ 90㎝﹑弹性力为180N。结论：鞍式腰托在通过力学测试以及临床应用﹐已基本符合脊柱胸腰段（T11L2）椎体屈曲型稳定性压缩骨折的复位要求，具有简便安全而有效的整复与固定作用。具有较强的实用性，值得进一步研究开发。

The method of two inhomogeneities in infinite solid by Mura is generalized to get the expressions of the formulae due to multiple inclusions.

在单个夹杂弹性结论的基础上，扩展了Mura提出的无限大体中关于两个夹杂的力学方法，得到了多个异质夹杂弹性解的表达式，并且对于球形的同质夹杂成功地做了一个算例。

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。