工程设计

According to the characteristics of spandex engineering process,introduces the design principles and configuration of air conditioning and ventilation systems.

针对氨纶工程工艺的特点，介绍该工程中空调通风系统的设计原则及系统配置情况。

The structures of cylindrical shell and spherical shell are basic components and widely used in industrial fields.

圆柱壳、球壳结构是工程领域中普遍应用的基本构件，研究该类壳体结构流固耦合辐射声场，对国防武器装备隐身技术的进步、工程结构的噪声控制及现代机电产品的低噪声优化设计等都具有重要的理论价值和现实意义。

Stochastic structure dynamic analysis and optimization design based on dynamic reliability have wide engineering background and are of important theoretical significance and research worthiness.

随机结构系统的动力分析与动力可靠性优化设计是结构工程领域中的前沿性课题，具有广泛的工程背景和重要的理论意义与学术价值。

Considering the projection of yellow sea port as one engineering instance, the design study of port stockyard in this paper has indicated higher actual significance.

以黄海港工程作为工程实例，使得本论文对港口堆场的设计研究具有更高的实际意义。

However, applications of optimization technique in real world engineering design are not advanced synchronously.

然而优化设计在工程实际中的应用却并未得到同等程度的发展，其原因主要在于工程问题所具有的高度复杂性。

By choosing the best municipal solid waste disposal technology and using the municipal solid waste disposal of the city of Huaian, Jiangsu province as the object of research, the qualitative and quantitative model of municipal solid waste disposal was established by designing evaluating index table and man aging the theory of fuzzy comprehensive judgment.

为根据本地实际情况选择有效的垃圾处理方式，以江苏省淮安市的城市生活垃圾处理作为研究对象，通过设计出的评价指数表，运用模糊综合评判原理，建立城市生活垃圾处理工程模式的定性与定量模型，以确定可选择的城市生活垃圾处理工程模式。

In chapter 4, basing theories and methods of scientific visualization, and artificial neural network BP algorithm, we integrate the Visual C++, OpenGL graphics library and Excel VBA technique to develop the program of artificial neural network and to make the BP algorithm visually, this program works can be divided into four parts: Using C language to develop program about BP algorithm; Using Visual C++, develop the GUI Interface, make input parameter visually; Using OpenGL graphic technique to display the training sample point in three dimension; at last using Excel DDE technique display the error graphic tables in Excel system In chapter 5, on the view of engineering application, we establish new method of surface reconstruction basing artificial neural network, develop interface program between module and commercial CAD/CAM system, meantime deeply discuss some key problems, for example, setting up the base plane, using the API technique, cutting and editing surface boundary, and also discuss the more compliant problem: how to intersect surface, at end we finish the work of translation from our surface reconstruction module to commercial CAD/CAM system, then make reverse engineering system basing artificial neural network more useful.

第四章基于科学计算可视化理论，依据人工神经网络BP算法理论模型，综合Visual C++，OpenGL图形库以及Excel VBA等多项软件开发技术，编制了人工神经网络程序，实现了BP算法的可视化映射。具体工作分为四部分：利用C语言实现人工神经网络BP算法；利用VisualC++的GUI技术开发图形用户界面，实现参数设置可视化；利用OpenGL图形技术进行三维映射，显示学习样本及训练样本点；利用微软电子表格DDE动态数据交换技术，在Excel上动态显示学习误差曲线图。第五章从工程应用的角度出发，提出了一种新的基于人工神经网络算法的曲面裁剪重构方法，完成了曲面重建模块与通用CAD/CAM系统的接口设计工作，对其中的若干关键问题进行了深入讨论，例如基平面设定、API技术的应用、边界裁剪等问题，同时，对曲面计算中较为困难的曲面相交问题也进行的专门探讨，最终完成了曲面重建模块向CAD/CAM系统的数据传输工作，使人工神经网络逆向工程系统趋向实用。

Based on the results from the Feasibility Study and Preliminary Design of Zhaojiabang Rd Drainage System, comparisons have been made of multiple construction methods for the main drainage pipe, such as the shield tunneling, pipejacking and trenched piping.

提 要：本文根据肇嘉浜路排水系统的工程可行性研究以及工程初步设计成果，特别地对排水总管的施工方法进行了盾构法、顶管及大开挖等多方案研究和比选。

If adopting the reliability analysis approach for geotechnical engineering, the uncertainness of various influencing factors, especially uncertainness of geotechnical parameters and calculated approach must be considered. Based on these two influencing factors, it is thoroughly studied of the probability characteristic of geotechnical parameters and the reliability of limited bearing capacity of single pile, and a set of idiographic method and approach of reliability analysis is built based much engineering data collected in Hangzhou area.

对岩土工程采用可靠度设计方法，需要综合考虑各种影响因素的不确定性，尤其是土性参数的不确定性和计算方法的不确定性，本文针对这两方面因素，在收集杭州地区大量工程资料的基础上，对土性参数概率特征及单桩极限承载力可靠度进行了详细研究，建立了一套可靠度分析的具体方法和途径。

Marine engineering and naval architecture students use math and science to learn how to design ships and other watercraft.

海洋工程/海军建筑专业利用数学和科学来学习如何设计船等船只，同时还学习与船相关的工程问题，包括铁锈等损害方式，环境维护和安全等。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。