查询词典 laminated sampling

The nonlinear dynamic equations including the initial geometric imperfections of laminated composite cylindrical shells were derived from Hamilton's philosophy. Assuming the transverse displacements to be composed of axially symmetrical part and axially asymmetrical part, the governing equations expressed as displacement forms of dynamic buckling were obtained by Galerkin method. The equations were solved by finite difference method. The effects of impact velocity, lamination angle, initial geometric imperfection on the axial dynamic buckling of laminated composite cylindrical shells were discussed.

由Hamilton原理导出包含初始几何缺陷的复合材料层合圆柱壳的非线性动力方程；将横向位移设为对称及非对称两部分，由Galerkin方法得到以位移形式表达的动力屈曲控制方程，通过有限差分方法求解；讨论了冲击速度、铺层角度、初始几何缺陷等各种因素对复合材料圆柱壳轴向冲击动力屈曲可能产生的影响。

The influence of initial imperfections on the stability ofcomposite laminated plates was studied by solving the nonlinear governing equations for laminated plates with elastical restraints subject to in-plane loading using the energy variational principle and nonlinear geometric equations incorporating the initial imperfection. The governing equations were solved using generalized Fourier series to obtain the effect of the non-uniform order term.

为深入研究初始缺陷对复合材料层板稳定性的影响，利用能量变分原理和考虑初始缺陷的非线性几何方程，建立了具有弹性约束的层合板在面内载荷作用下的非线性稳定性控制方程组，运用广义傅立叶级数法对其进行求解，并进一步获得了影响非线性稳定性控制方程组的性质的非齐次项。

Biomimetic laminated composite was fabricated by mimicking the cyclical matrix control process to form the highly structured Mollusca nacre, the structure and growth period of the biomimetic laminated obtained was similar to Mollusca nacre, it can be considered as a model for the research of the formation of Mollusca nacre.

获得的该复合材料与珍珠的结构和生长周期与珍珠具有一定的相似性，为研究珍珠的形成过程提供了参考模型，并通过研究珍珠的形成过程，掌握和了解珍珠形成的各种影响因素。

In this paper, a general, strain-consistent, third-order displacement field of shells is proposed. On this basis, the nonlinear theory of composite laminated shells including third-order transverse shear deformation and rotary inertia is developed. Hamilton's variational principle is used to derive the nonlinear static and dynamic governing differential equations and the corresponding boundary conditions of composite laminated anisotropic general shells under the orthogonal curvilinear coordinates. And the form of spherical shells is degenerated.

本文提出了一种最普遍的应变协调、三阶壳体位移场，在此基础上建立了考虑三阶横向剪切变形和旋转惯性的复合材料层合壳体非线性理论，用Hamilton变分原理导出了复合材料层合各向异性任意壳体在正交曲线坐标系下的非线性静、动力控制微分方程和相应的边界条件，并将其蜕化为球壳形式。

On the basis of local loaded experiment of external prestressing on laminated beams of concrete and theoretical analysis,we put forward the calculated formula for deformation and maximum crack width,considering the force bearing property of two stages of the laminated elements of concrete and the recent research results for beams of partly prest...

在体外预应力混凝土叠合梁现场加载实验和理论分析基础上，结合无黏结预应力混凝土梁已有的研究成果，同时考虑混凝土叠合构件的二阶段受力特性，给出了体外预应力混凝土叠合梁变形及最大裂缝宽度计算方法。通过与现场实验结果对比，表明该公式计算精度较高，可用于指导同类工程的加固设计。

Our main products are: 1, major equipment has: manually parallel Exposure Machine (5KW) Double-Sided Exposure Machine (8KW, 7KW, 5KW,) manual film laminated machine film machine noodle plate cleaning machine Net version of plate brown brown film developing machine exposure machine film machine Complex punching machines and other dried-way equipment circuit board. 2, agent Product categories: the brand special light sources and surrounding light machine fittings: 8K, 7K, 5K Exposure Machine lamp, quartz water jacket, exposure glass, Mylar membrane, ion filter cans, laminated machine equipment, fittings and other fittings.

公司主要产品有：1、主要设备有：◆手动平行曝光机（5KW）◆双面曝光机（8KW、7KW 、5KW，）◆手动压膜机◆底片贴膜机◆板面清洁机◆网版晒版机◆棕片显影机◆棕片曝光机◆复片机◆冲片机等线路板干制程设备。2、代理产品类：各厂牌特种光源及曝光机周边配件：8K、7K、5K 曝光机灯管，石英水套，曝光玻璃，Mylar膜，离子过滤罐，压膜机配件等设备的配件。

In this paper , the membrane and protector stresses of the laminated membrane coupling , the modal of the laminated membrane coupling , the stress character of the rabbet have been studied by ansys based on the nonlinear finite element method . the work of this paper makes a theoretical basis for the using of the coupling . it has several parts to follow

本文运用非线性有限元分析方法，利用有限元分析软件ansys研究了某型叠片联轴器的叠片及护板的应力分布、叠片联轴器的模态以及叠片联轴器榫头的应力特征，为该型联轴器的使用提供了良好的理论基础。

With the ordinal addition of dispersed clay particles,oil drops,conducting matrix grains,laminated shale to water and successive integration over the addition of a single inclusion,generalized matrix-conducting pore combination model in laminated and dispersed shaly sands is established.

通过两组分散泥质砂岩岩样实验测量数据和一组层状泥质砂岩测井资料及实际测井资料的计算，表明本文给出的电阻率模型既适用于分散泥质砂岩地层解释又适用于层状泥质砂岩地层解释，同时，还适用于含有分散粘土和层状泥质的混合泥质砂岩地层解释。

The course is designed to acquaint students with the manufacturing techniques, utilization and performance of plywood, lumber core plywood, laminated veneer lumber, laminated veneer board and compreg…etc., which are the primary processed products of the wood veneer.

本课程旨在传授学生合板，木芯板，层积材，层积板及硬化层积材等以木材单板为原料的初级加工产品之制造技术，原理及使用性能等有关之知识。

X displays right pulmonary tuberculosis accounted for 30.4% the left lung accounted for 18.8% the double lung accounted for 50.8% between the lung nature venereal diseases changes the performance is two lung textures increases thickly the edge is fuzzy the lung hilus increases the disorganization accounted for 62.3%; The lobulous lung essence infiltration pathological change performance is in two lungs retires the inner tube spot laminated shape and the cloud cotton wool shape shadow the focus of infection fusion may assume the ground glass density to account for 30.5%; The lung section substantive infiltration pathological change displays for the boundary clear triangle or the fan-shaped big laminated high density was 7.2%.

胸部X线表现右肺病变者占30.4%，左肺占18.8%，双肺占50.8%，肺间质性病变表现为两肺纹理增粗，边缘模糊，肺门增大，结构紊乱占62.3%；小叶性肺实质浸润病变表现为两肺中、下野内带斑片状及云絮状阴影，病灶融合可呈磨玻璃密度占30.5%；肺段实质性浸润病变表现为边界清楚的三角形或扇形大片状高密度阴影占7.2%。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。