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Three moment method,the transition matrix method and finite element method in shipping shaft system alignment are used ,the application of finite element method in shipping shaft system alignment is proved to be more reasonable through an example .

并以某实船为例，利用三弯距法、迁移矩阵法和有限元法对船舶轴系进行校中计算，说明有限元法更先进合理。

The unbalance forces due to the lumped eccentric mass are treated as general forces. Meanwhile, the potential energy expression about gravity based on finite element method is presented for convenience. Based on the variational inequalities principle, the finite element is used to determine the film forces produced by fluid film bearing and damper at any moment and its Jacobian matrix with respect to location and velocity of journal and bearing house.

在第二部分中，主要应用有限元方法及Hamilton原理对所研究系统进行了建模分析，着重对质量偏心问题进行了分析处理，并对此提出了两种处理方法：一、转化为对系统动能的影响；二、将其产生的离心惯性力视为非保守的广义力，并对其表达式进行了推导，同时为分析问题方便，基于有限元离散化方法，推导了重力的势能表达式。

The fluid film bearing-flexible rotor nonlinear system with squeeze film damper is modeled practically using the finite element method and the Hamilton principle.(3) The film forces produced by fluid film bearing and squeeze film damper are determined by finite element method at any moment, and the Jacobian matrix is also determined.(4) A method for analyzing the dynamics of a large system with local nonlinearities is presented. The stability and bifurcation of the equilibrium position and the unbalance responce of a fluid film bearing-flexible rotor system with squeeze film damper are investigated based on the assumption of an incompressible lubricant together with the long bearing approximation for fluid film bearing, short bearing approximation for squeeze film damper and the"π"film cavitation model.

主要研究内容包括下面几个方面：（1）对挤压油膜阻尼器-滑动轴承-转子非线性动力系统中的非线性现象进行了机理方面的研究；（2）应用有限元方法及Hamilton原理对复杂的挤压油膜阻尼器-滑动轴承-转子非线性动力系统进行了建模分析；（3）对滑动轴承及挤压油膜阻尼器中任一时刻的油膜力及相应的Ja-cobi矩阵的确定进行了分析；（4）对一类具有局部非线性的多自由度动力系统，提出了一种可以有效地分析其动力特性的方法；（5）采用实验与理论分析相结合的方法，对挤压油膜阻尼器-滑动轴承-转子非线性动力系统的动力特性进行了分析。

Structurally, the said mosquito killing machine features the pedestal connected movably to the lower case body and with chemical bottle inside it, the indication lamp fixed inside the case with lamp socket being connects movably to lower case body, the upper and lower case bodies connected movably, the chemical bottle electrode base as PCT heating element mounted inisde the lower case body, and the cap of chemical bottle contacting the PCT heating element.

本发明涉及一种化工设备，进一步谈是一种多功能电液灭蚊机，其结构特征是底座与下箱体活动连接，药瓶卡进底座体内，瓶底镶嵌在底座内，指示灯座与下箱体活动连接，指示灯在箱体内固定，上箱底与下箱体活动连接，药瓶电极底座在下箱体内，药瓶盖与PCT加热电子元件相接触。其优点是结构设计合理、效果稳定、耗电低、无污染。

The mudsill and bracket of RWD/QX--48 X1X 2 electrical dust precipitator act as the primary study subject in this paper, and finite element analysis and optimization analysis are made by use of large-scale finite element analysis software I-DEAS, aiming at the demerit of nonstandard design on electrical dust precipitator in our country.

中文摘要：本论文主要以RWD/QX—48×1×2型电除尘器的底梁和支架为研究对象，针对我国电除尘器生产单位对其设计不规范、结构不合理的缺点，利用大型通用有限元分析软件I-DEAS对其进行了有限元分析和优化计算。

An element of the array is accessed by its index while an element is obtained in memory by its address. So the conversion method from array index to memory address must be generated. In this paper, a novel algorithm of address generation using logic operation for multidimensional array is proposed.

行为级描述中通过数组下标对数组元素进行操作，而存储器的操作要通过存储单元地址来实现，因此需要将数组元素的下标转换成对应的存储单元的地址。

The equations of dynamics for the balance are established by Kane's method, from which derives the characteristic equation of natural frequency by means of linearization of dynamic equations, and the six natural frequencies being developed according to the theory of vibration. The law of the six natural frequencies varying with mass of the upper platform and the stiffness of the elastic element are presented,and the Finite Element Method is employed to testify the validity of theoretical results.

基于 Kane 方法研究天平的动力学及模态，通过线性化动力学方程建立天平的固有频率方程，依据振动理论推导出并联天平的六阶固有频率及其对应的振型，同时研究了天平的六阶固有频率随敏感单元刚度系数及上平台质量的变化规律，并用有限元法验证理论计算结果的正确性。

The documentary is various art element creation effect , union seeing and hearing draws art being an integral whole, with definition , music , scene sound , primitive tableau, the scene is reproduced waiting for a variety of means to come to reflect the objective true event , come to show story be rich in content, development of personage story line , in the process of the element handling various art, discover a little new problem , new view and neodoxy , leave vast imagination space to person.

内容提要：纪录片是多种艺术元素的创作效果，并集视听声画艺术为一体，以解说、音乐、现场声、原始画面，情景再现等多种手段来反映客观真实事件，来表现故事内容，丰富人物故事情节的发展，在处理多种艺术元素的过程中，发现一些新问题、新见解和新观点，给人留下广阔的想象空间。

The paper put forward the route of static finite element analysis and structure optimization for the components of hydraulic pressure, performed the static finite element analysis of important components including higher beam, attained the distributing nephogram of stress and strain.

提出了液压机部件静态有限元分析和结构优化的思路，针对上横梁等重要部件进行静态有限元分析，得到应力应变分布云图。

The system is an integrated whole including simulation and real-time data gathering imaging, whose finite element model can be analyzed automatically and size can be adjusted. The isoline and nephogram drawing algorithm in finite element after-management have been realized.

伪迹的产生主要来自于测量数据中所包含的噪声和误差，对于反投影算法还有反投影理论本身所固有的星状伪迹。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。