查询词典 elastic coefficient

For obtaining the numeral solutions of round elastic plates in axisymmetrical deformation with varying-thickness in nonlinear deformation in the unsteady electromagnetic field and mechanical field,by establishing the equations of motion,the equations of distortion,the equations of Lorentz force,the equations of electronic dynamic mechenical,and adopting iterative method,we gained the nonlinear magneto-elastic calculation method and outcome of current-carrying shell,and gained the influencing degree toward mechanical parameter of varying thickness round ferreous plates in the electromagnetic field and mechanical field.

为了获得内边界固定的环形导电薄板在均布力与横向磁场作用下的变形问题的数值解，通过建立运动方程、变形方程、电动力学方程和洛仑兹力方程，运用迭代法得出了载流板壳的非线性磁弹性的计算方法和结果，以及机械场、电磁场对铁质变厚度圆板各力学参量的影响程度。

In this thesis, the crystal structure and phase transition behaviors of a andβforsterite (Mg2SiO4) at high temperature and high pressure were investigated by the first principle calculations and the quasi-harmonic Debye model. Variations of elastic properties, band structure, density of state, band gap ofαandβforsterite with pressure were calculated, and the effect ofα/βphase transition on these characters was analyzed. The effects of water on elastic modulus, sound velocity and band gap of forsterite were also simulated. Finally, the effect ofα/βphase transition and water on seismic discontinuity in earth was discussed.

通过第一性原理结合准简谐德拜模型研究了α和β镁橄榄石的高温高压结构及相变特征；计算了α和β镁橄榄石的弹性模量、波速、电子带结构、带隙等随压力的变化规律，并探讨了相变对这些性质的影响；研究了水对α镁橄榄石弹性模量、波速和带隙的影响；探讨了水对地幔中不连续层的作用以及矿物相变对过渡带波速不连续的作用。

The silicon-acrylic latices with core-shell structures were prepared by means of a"two-stage"emulsion copolymerization. The effect of constituents and proportion of core and shell parts on the properties of latex film were investigated, and their applications in water-borne wood coatings and elastic coatings were explored. The results indicate that wood coating and elastic silicon-acrylic coatings with good performance and zero VOC content can be prepared by suitable design of structure of silicon-acrylic latex particles.

通过&两段&乳液聚合的方法合成了具有芯／壳结构的硅丙乳液，研究了芯／壳乳液粒子结构及组成比例对聚合物漆膜性能的影响，并探讨了芯／壳乳液在水性木器涂料及弹性涂料中的应用，结果表明，通过对硅丙乳液粒子的结构设计，可以获得性能优良的零VOC含量的木器涂料和弹性硅丙涂料。

Suction was applied, drawing the Dieulafoy lesion and the surrounding mucosa into the lumen of the ligator,~preloaded elastic band was fired, and the Dieulafoy lesion was ligated by the elastic band.

Dieulafoy病变是引起上消化道大出血的原因之一，近年来随着内镜诊断水平的不断提高，其发病率有明显上升的趋势。

Calculated the elastic energy of deformation for the lunisolar tide-generating potential and the centrifugal potential of the earth rotation; computed the Love number and elastic energy of deformation for Venus; determined the internal structure model and dynamical parameters of the Galilean satellites.

计算了日月引潮力势和自转离心力势引起的地球弹性形变能；计算了金星勒夫数和潮汐摄动的弹性形变能；给出了四颗伽利略卫星的内部分层和密度分布，并根据模型算出了它们的动力学参数和潮汐耗散因子。

The characteristic of the visco-elastic models and the damage models have been analyzed by the SBS modified asphalt mixture monaxial tension tests ,and coupling becomes visco-elastic and damage models in succession.

通过SBS改性沥青混合料的单轴拉伸试验，分析了粘弹性模型与损伤模型的特性，并耦合成粘弹性连续损伤模型；从能量的角度考虑了SBS改性沥青混合料的疲劳损伤特性和损伤效应，并建立了一种与拉伸应变水平相关的疲劳损伤模型。

Secondly, on the basis of elastic-plastic stability analysis, referring to the stability design method of monosymmetric section axially loaded compression members, equivalent slenderness of pin-ended circular steel arch subject to hydrostatic pressure are deduced from the expression of out-of-plane elastic buckling load.

在弹塑性平面外稳定性分析的基础上，借鉴单轴对称截面轴心受压构件的弯扭屈曲设计方法，提出以面外屈曲荷载对应的正则化长细比为参数进行面外稳定性设计的方法。

But, the characteristics of its adhered-elastic fracture in high temperature and brittle fracture in low temperature were discovered during impact load test The impact fracture mechanism of the high-energy nitroamine propellant had been put forward by studying the fracture appearances of impact fracture surface, the expansion of secondary crack and the weakness or failing of mechanical structure combined with the analysis of impact fracture properties and dynamic adhered-elastic properties and structures.

通过研究冲击断裂表界面的断口形貌、二次裂纹的发展、材料的力学结构缺陷或弱点，并结合冲击断裂性能、动态粘弹性能及结构分析，提出了硝胺发射药的冲击断裂破坏机理。

In the buckling question under nonconservation force,a simply example( the dynamic stability question under the uniformly follower forces with small deformation % linear elastic, straight normal.) is considered.The variational equation of braid composite cylindrical shells subjectd to uniformly follower forces is deduced based on the variation principle of quasinatural frequency of elastic nonconservative system self-excited vibration.The calculated formulas of the flutter load and quasinatural frequency of shells are obtained. The program for calculating the flutter load is developed.The numerical example is given and some useful conclusions are obtained.

对非保守力作用下的屈曲问题，具体研究了圆柱壳在比较简单的情况，即小变形、线弹性、直法线假设下在随动力作用下的壳屈曲问题，由拟固有频率变分原理推出了圆柱壳受随从力作用的变分方程，得到了颤振载荷与壳弯曲的固有频率的计算公式，编制了相应的计算机程序，并给出了具体算例，得到了一些有益的结论。

On the yarn quality of ramie fiber/ cotton modified elastic nubby yarn are analysed,and discusses the process measure that processing modified elastic nubby yarn .

结合对FA502型细纱机进行改造，采用瞬时改变中后罗拉速度的装置，通过生产实践和工艺试验，分析了纤维性能、纺纱工艺等因素对苎麻纤维/棉变弹竹节纱质量的影响，探讨了生产变弹竹节纱的工艺措施。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。