壳板

In this thesis three kinds of piezoelectric transformers are investigated, including circular cylinder piezoelectric transformer of thickness-shear mode, cylindrical thin shell piezoelectric transformer of torsional mode and multi-layered rectangular plate piezoelectric transformer of thickness-twist mode.

本文研究了三种不同结构模态的压电变压器，包括基于厚度剪切模态的圆筒结构压电变压器、基于扭转模态的壳结构压电变压器和基于厚度扭转模态的多层矩形板结构压电变压器。

The first to use PRO / E software components establishment of the body (body, cylinder head, cylinder pad, cylinder liner, the main bearing caps, Flywheel carcasses, gear Connection Board Room, Shell pump, oil pan, about mounting frame, rear axle oil blocks, etc.) 3D solid model; Then use Hypermesh software division finite element mesh to ensure a good grid quality, and better coordination of the grid between quantity and accuracy of contradictions; Finally using ANSYS software components of a body finite element analysis.

首先利用PRO/E软件建立机体组件（机体、气缸盖、气缸垫、气缸套、主轴承盖、飞轮壳、齿轮室连接板、水泵壳体、油底壳、左右悬置支架、后轴油封盖等）的三维实体模型；然后利用Hypermesh软件划分有限元网格，保证了良好的网格质量，较好地协调了网格数量和计算精度之间的矛盾；最后利用ANSYS软件对机体组件进行了有限元分析。

The adaptive researches on the shell and board have laid down the foundations for the study of the blade in the future.

通过对板壳的自适应研究，为后期叶片研究提供了基础。

Based on the authors research, some suggestions and modifications about microplane theory are proposed.

在论文的第二部分，笔者进行了混凝土板、壳及箱型结构非线性有限元分析的研究。

The optimization design of guide shell is very important for compact plate-shell heat exchanger s.

对于紧凑型板壳式换热器，导流结构的优化设计是至关重要的。

It does not apply thin shell analysis ,but also apply middle-thick sheet analysis ,and it is easy to achieve transition with 3-dimension solid element .

对于复杂形状的中厚板件拉深，在凹模圆角处单元的弯曲效应明显，不能满足薄壳假设的基本要求。

The folded plate latticed shell is a new type of lattice space structure, having merits of both folded plates and spatial lattice structures.

以某体育馆钢屋盖结构为实例，论述了折板网壳结构的选型、受力特点、水平推力的处理方法和模态分析。

According to the method, the effect functions of imperfections about buckling loads of the composite sheet—space lattice shell and she single layer lattice shell are obtained. These effect functions can be simply used to determine the nonlinear buckling loads of engineering structures with imperfections.

并运用该方法，分别计算编制了板片空间结构和普通单层网壳的缺陷对临界荷载的影响函数图表，根据图表中均值和方差函数以及缺陷敏感性指标，在设计该类结构时可以较简便地确定缺陷对临界荷载的影响。

Plates with different types of cutouts are common in many engineering applications.

开孔板壳是工程中一种常见的重要结构。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。