自动计算

The most important of them are position sensors and distance sensors. This paper presents one method to compute the change of joint angles in chain using the information from position sensors, as well as another method to compute the six degree-of-freedom offsets between two connection plates using IR sensors among the automatic docking process. These computation methods provide some theoretic sustain for self-reconfiguration.

论文提出利用位置传感器感知的模块连接角信息计算对接过程中模块的相对位置和角度变化，还提出利用红外传感器的感知信息计算进行对接的模块两个连接面板之间六自由度方向的位置偏移量，这些计算方法为实现模块化机器人自动重组提供了理论支持。

The method uses an implicit iterative scheme with a hyperbolic sine transformation for the matrix potential, takes the advancing front self-adaptive grid, and resolves problem of too much account in calculation to dry earth's surface by fixed grid method. Results indicate that calculation speed is increased greatly and errors are less than by fixed grid method.

该方法使用了水土势双曲正弦变换的隐式差分格式，并采取了自动向下搜索的空间网格形式，解决了干燥地表固定网格计算量过大的问题，同时计算速度大大提高，计算误差小于固定网格法的误差值。

The calculation of urban water supply system is relative complicated in consideration of network s modeling, node demand calculation, initial flow distribution, forming of correlative matrix, universal programming, and drawing method of isopiestic line .

城市给水管网计算是一个较复杂的系统，从管网的建模、节点流量的计算、初始流量的分配、各相关矩阵的自动生成、具有通用性的平差计算到管网图形和等压线的绘制，需要考虑各种相关因素的影响。

The main work and innovation1 In general , a image compression method has different effect to different image . Some are fit for image which has much high frequency . Some are fit for image which has much low frequency .This paper analysis the applicability of fractal algorithm . In this dissertation , an improved algorithum is given . The basic algorithum without eight change and the joint use of quantitative coding , The compression ratio and PSNR can be adjusted , and it can get more quickly speed of coding .2 To a group of exact fractal code , the decoding image can be any resolution .With this characteristic ,choose the proper domain block and range block,this paper get an algorithum which can get higher decoding PSNR and speed than the basic fractal algorithum.3 Give a new method to calculate the scale factor . The calculation of basic algorithum is complex and enormous . The factor of scale is an important variable of the basic algorithm. Now there are two methods to calculate the factor of scale .A new method was given to calculate the factor of scale. The calculation load and complexity are reduced by the new method. Compared with the basic algorithm , the method can reduce coding time.4 The basic fractal algorithum is based on the Collage theorem and contraction mapping theorem . A mathematic model based on basic fractal algorithum is given .

本文的主要工作及创新点主要包括以下几点：1一般情况下，一种图像压缩的方法对不同特点的图像，压缩效果会有所不同，本文利用分形压缩编码对不同特点的图像进行编码，分析了分形编码对不同图像的编码适用性，利用去掉8种变换的分形编码算法与简单的均匀量化编码方案相结合，得到了一种可以调节压缩比与解码质量的分形编码方案，该提高编码速度6倍以上。2分形编码的特点之一是分形解码的分辨率无关性，即对于一组分形编码可以将其解码到任意分辨率下，本文利用分形编码的这一特点，结合不同的量化编码方案，选择合适的定义域块与值域块及适当的编解码分辨率，得到了一种提高解码质量，编码速度提高12倍以上的加速算法。3比例因子是基本分形算法中的一个重要变量，目前有两种计算比例因子的方法，文中给出了一种新的求比例因子的方法，该方法简化了求比例因子的计算，从整体上减小了基本分形算法的计算量，简化了算法4分形压缩的数学基础是不动点定理与拼贴定理，本文根据基本的自动分形编码方法，建立数学模型对其进行推导，得到了用普通数学的极限理论解释分形编码的数学表达式，从而对由基本分形编码得到的解码图像中的像素点的值给出了确定的表达式。

The method can be used in all kinds of domains since it calculates the global minimum of a constrained multi-extrema function to get high-quality centroidal Voronoi tessellations for the region.

该算法结合k-means方法和模拟退火算法求解约束条件下的多峰值函数全局最小值，在待求计算域内和边界自动生成无网格计算节点，且节点为计算域对应质心Voronoi结构的质心点。

By using Visual Basic, based on NASTRAN finite element analysis, this paper developed an efficient and convenient software which can process automatically the result of NASTRAN analysis and establish the database, and compute the failure probability of structural element and system, plot the contour of failure probability.

在NASTRAN有限元分析结果的基础上，以Windows95为开发平台，以VisualBasic为开发工具，开发了一个效率高，使用方便的结构可靠性分析软件该软件可以自动处理NASTRAN的计算结果，建立数据库，计算结构单元和系统的失效概率，绘制结构失效概率分布云图等，为工程人员在有限元计算的基础上进一步进行可靠性分析提供了一个方便、快捷的工具

The stress intensity factors of pipes containing an elliptical arc of crack have been evaluated by collapsed singular element with the more detailed mesh on crack front and their respective adjacent areas.

中文摘要本论文对含内、外裂椭圆形裂缝之圆管应力强度因子计算，计算在椭圆形裂缝尖端部位附近，使用溃点奇异元素，建立有限元素的网格化自动产生模型，并利用ANSYS程式计算裂缝尖端的应力强度因子。

L Based on the analysis on the current NC programming systems, an interactive NC programming system is studied: First, due to the over sophisticated calculation of cross and tangent points in NC programming, a knowledge based math processor is proposed, then, to provide more convenint graph entry method, a dynamic figure based graph entry system is devised, at last, based on the above mentioned studies, an integrated (including preprocessor, post processor and program testor), interactive, bi-dimensional NC programming system is developed.

围绕语音数控自动编程系统研究：(1)首先，在分析现有编程系统基础上，研究了交互式数控自动编程系统：针对自动编程系统交切计算复杂的特点，提出并实现了基于知识的数学处理子系统；为了方便图形输入，构造了动态表格图形输入子系统。

This paper also brings forward the generatordesign platform for the helical tube steam generator, by using thermal-technicalanalysis platform and calling of analysis modules, thermal-technical calculationfor different type of steam generators can be realized.

排管程序可以灵活选择输入参数进行自动排管计算得到蒸发器结构参数，其结果可以作为热工计算的输入条件，并和热工计算的结果相校核。论文还提出了蒸汽发生器通用设计平台，通过构建蒸发器的热工分析框架与分析功能的模块化调用，实现对不同型式蒸汽发生器的热工计算。

These algorithms include the calculation of the geometry dimension of the transmission gear, the automatic generation of the tooth profile plane model and the finite element grid of the gear model, and automatic completeness of the finite element analysis of the transmission gear.

本论文集变速器齿轮几何尺寸计算、齿廓平面模型自动生成、齿廓有限元网格自动生成及齿轮模型ANSYS有限元分析自动完成于一体，并提供可被其它有限元程序和软件使用的数据。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。