弹性力学

The finite element model of base plate is used in modal analysis and transient dynamic analysis by means of the elasticity finite element method.

同时运用弹性力学有限元法对座钣建立的有限元模型进行模态分析和瞬态动力学分析。

At the same time,the finite element model of base plate is used in modal analysis and transient dynamic analysis by means of the elasticity finite element method.

为了优化发射器座钣的结构设计，采用有限单元法对某型号发射器座钣三维空间板壳结构进行了整体三维建模，同时运用弹性力学有限元法对座钣建立的有限元模型进行模态分析和瞬态动力学分析。

The mathematics model of three-dimension temperature field of the machine tool spindle system is created, and based on elastic mechanics, basic equation of heat deformation and finite element theory, the mathematics model of heat deformation is built.

建立了机床主轴系统三维温度场数学模型，并基于弹性力学、热变形基本方程和有限元理论建立了热变形的数学模型。

In the thesis, the elastic mechanics theory of temperature stress was introduced at first. Then give a presentation of the finite element theory of temperature stress and how to analyze super-long structure with ANSYS using 3D beam and shell element.

本文首先总结了国内外关于超长混凝土结构温度应力的研究现状，并简要地介绍了温度应力的弹性力学理论，然后概述了应用大型通用有限元软件ANSYS分析超长混凝土结构温度应力的有限元理论。

In order to optimize the structure for the firer base plate by means of FEM,A three- dimensional shell model has been set up for a particular type of firer base plate.

为了优化发射器座钣的结构设计，采用有限单元法对某型号发射器座钣三维空间板壳结构进行了整体三维建模，同时运用弹性力学有限元法对座钣建立的有限元模型进行模态分析和瞬态动力学分析。

A porous media model is introduced for a description of foam silicone rubber .

泡沫硅橡胶是一种典型的多孔材料，同时它的本构行为也呈现超弹性力学性质。

With coupler embedded and acceleration sensitivity compensation design, the structure symmetry is insured, which can induce the acceleration sensitivity effectively. The acceleration sensitivity compensation design also improves the production efficiency of FOH for towed linear array application.2. A good theoretical simulation platform, utilizing the method of elastic mechanics and the finite element method, is established, which can provide an effect predictive design for FOH. The experimental results are in good agreement with the theoretical analysises.3. Some key technology problems in the making of FOH for towed linear array application are conquered. The new developed FOH, with an acoustic sensitivity of -143.0dB, has acceleration sensitivity less than -30dB, which exceeded to results from other international reports.

本论文的主要成果和创新在于：1、提出了耦合器内嵌、带加速度灵敏度微调补偿的低加速度灵敏度光纤水听器结构，最大程度保证了工艺结构的对称性，实现了对工艺误差的有效补偿，提高了低加速度灵敏度光纤水听器研制的成品率。2、采用弹性力学和有限元方法建立了拖曳线列阵光纤水听器理论设计平台，实验与理论分析结果相一致，这为优化光纤水听器的结构设计提供了有效的技术手段。3、解决了拖曳线列阵用光纤水听器制造的关键技术问题，研制出声压灵敏度为-143.0dB，加速度灵敏度低于-30dB的拖曳线列阵用光纤水听器，其加速度灵敏度优于国际上已报导的结果，并在国防水声一级计量站对其进行了性能指标测试(来源：A14BC论文网www.abclunwen.com)。

It combines the geometrical flexibility of the Finite element method and the accuracy of the pseudospectral method. Here, the theory and the deducing process of the SEM based on the Legendre polynomial is given.

本文采用谱元法对横向同性介质中的地震波进行模拟，该方法基于弹性力学方程弱形式基础之上，具有有限元适应任意复杂介质模型的韧性和伪谱法的精度。

In the text, the Spectral element method is used to model the seismic wave propagation, which is based on a weak formulation of the elastic mechanics equation. It combines the geometrical flexibility of the Finite element method and the accuracy of the pseudospectral method.

本文采用谱元法对横向同性介质中的地震波进行模拟，该方法基于弹性力学方程弱形式基础之上，具有有限元适应任意复杂介质模型的韧性和伪谱法的精度。

The Fourier transformations about the azimuthal angle and Hankel transformation about the radial direction have been used to convert the basic equations of elasticity into a non-homogenous first-order ordinary differential equation system in cylindrical coordinates.

在柱坐标系下，利用关于方位角的Fourier变换及关于径向的Hankel变换，将弹性力学基本方程组转化为非齐次的一阶常微分方程组的标准形式。

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。