查询词典 design drawing

The dynamics and heat transfer on the spinning line during the air drawing process are discussed in detail, mainly relating the forces acting upon the polymer along the spinning line and the expressions of the air drawing coefficient C〓 and heat transfer coefficient h. By introducing the power-law model as the constitutive equation to describe the theological properties of polymer melt and considering the changing of the density and specific heat capacity of polymer melt at constant pressure with the polymer temperature, the former model of polymer air drawing is improved and a complete polymer air drawing model is established, which is integrated with the model of air jet flow field of dual slot die.

在此基础上，对前人的聚合物拉伸理论模型进行了改进，以幂律模型作为描述聚合物熔体流变行为的本构方程，并考虑了聚合物熔体密度和定压比热随聚合物熔体温度变化而变化这个因素，从而建立了完整的熔喷聚合物拉伸理论模型。

"Electronic 1C Chip drawing system" provides many functions such as "modify the position of the component"s diagram""modify the color of the component"s diagram""magnify and minify the component"s diagram without distortion""change the type of drawing line""edit some physical properties of the component""copy and paste diagram of one component""delete one or more component diagrams""move more than one components" positions""change the z_order of the diagram,set it to back or bring it to front""save the drawing of the electronic components to one file and the file extension name is *.brd""print the drawing".

电路板元器件绘制系统主要完成了使用鼠标拖拽、鼠标点按的方式绘制电路板上各种常见的元器件图形；编辑电路板上元器件图形的位置；编辑元器件图形的颜色；不失真的对器件图形进行放大和缩小；编辑元器件图形的线型；编辑电路板上各个器件的物理属性(比如电阻的阻值大小、电容的容量大小、额定电压等)；复制已经绘制出的电路板上的器件；粘贴剪贴板上的器件；删除单个或多个已经绘制出的器件图形；同时改变多个器件图形的位置；改变绘制区内各个元器件的z order顺序，也就是可以将层叠在一起的图形置前或置后；把绘制的电路板器件图保存到指定文件中；能打开、查看和修改保存的电路板器件图；打印电路板器件图。

The presses used for reference machine type double-drawing presses arts and crafts, It adopt Hydraulic urns change new drawing Hydraulic precess. It special have double drawing quick as well as Hy draulic double –drawing press and speed adjustable.

本系列液压机是借鉴机械式双动拉伸液压机工艺，采用液压缸改进而成的新型拉伸液压机，具有机械双动拉伸机快速特性，又有液压双动拉伸机压力和速度可调的特性。

In the recent years, the company has successively developed the fully servo control extra-fine metallic wire drawing machine without tension bar, stainless steel fine wire drawing and annealing machine, the true meaning constant tension and constant line rate and fully-automatic single-head and single-control annealing wire coiling machine, fully-automatic active wire laying device and inductive and constant annealing extra-fine copper wire drawing machine and other new products, which have basically solved the defects of the finished product wires manufactured by ordinary equipment that tension inequality, disordered wire arranging, incapability for anti-drawing intensity and extension rate control and low finished product rate, etc and have improved the product quality to a higher grade.

近年来，本公司相继开发出全伺服控制无张力杆的贵金属极细线拉线机，不锈钢微丝拉丝退火一体机，真正意义上的恒张力，恒线速，全自动的单头单控退火线绕线机，全自动主动放线装置以及带感应式连续退火的极细铜线拉线机等新产品，根本解决了普通设备生产出的成品线内外松紧不一，排线不整齐，抗拉强度和延伸率无法控制，成品率低等缺陷，使产品质量更上了一个档次，设备的外观，制造精度和技术性能可以与进口设备相媲美，完全能够满足客户国外订单的高品质要求。

The groundwork of this text is as follows:In understanding the graphic presentation characteristic of the construction drawing of the building, foundation of content. At building the semantemes of construction drawing, building construction drawings understanding tactics and content gone on detailed analysis understanding. Have laid a good foundation for the following understanding of the construction drawing; According to the expression characteristic of the construction drawing, utilize the technology of OOP, Adopt C ++ language and draw the level models of fire control feature; It carries on deep analysis to DXF file format give and a method of read DXF file. On the basis of reading DXF file and familiar with understanding to the form of DXF file, study to the pattern recognition methods of fire control facility.

本文的主要工作如下：在了解建筑工程图的图示特点、内容的基础上，对建筑工程图的语义、理解策略、建筑消防审查等内容进行了详细的分析，为后面的工程图的理解打下了良好的基础；根据工程图的表达特点，利用面向对象的程序设计方法，采用C++语言，得出了消防特征类的层次模型；对DXF文件格式进行深入的分析，并给出了读取DXF文件的方法；在读取DXF文件和对DXF文件的格式熟悉了解的基础上，对消防设施的图形识别方法进行了研究，提出了实效的图形识别的方法。

Elaborated the punching components formation principle the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machiningthe drawing and punching compound die with float punch-matrixthe drawing and cutting compound dies with unaltered pressthe compound die for the back bowl of the noise keeperthe design of the compound die which could produce two workpieces in one punchingthe bending die for the ring shape part the bending die which used the gemel automate loading die for cutting the drawingpunching and burring compound dies with sliding automated loadingthe punching die for the long pipe with two row of holethe drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文对冷冲压技术的分类、特点及发展方向作了简略概述；论述了冲压零件的形成原理、基本模具结构与运动过程及其设计原理；对典型的冲压件模具进行了设计：大直径三通管冲压复合模设计解决了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模。

An introduction was made on the design of the essential processing drawing and the part_processing procedure drawing , the selection of the pressing direction, the makeup design of the technological process, and the location of the drawing ribbings in designing the pressing process of the front part of the right_rear wheel hood of Fukang cars.

介绍了富康轿车右后轮罩前部冲压工艺设计中的加工要领图、工序制件图设计及冲压方向选择、工艺补充设计和拉伸筋设置等。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

First chapter is the summary, mainly introduced the project basic survey; Second chapter for the dam site hydrology characteristic, introduced the Hubei -01 key project in the basin specially is nearby the dam site hydrometeorology survey; Third chapter for the key position and the storehouse district terrain geology condition, introduced explained the dam site specially is nearby the dam spool thread terrain geology condition; Fourth chapter for the key position building shaping and the hydrology computation, including determined key position the project rank, the building shaping, adjusts Hong to calculate, blows off the bottom hole cross section size drawing up with initially to draw up the key position scheme of arrangement; Fifth chapter draws up for the size with the dam body arrangement, including the shaping, the Liang section plane determination, the dam body dam base guards against infiltrates the draining water facility the arrangement and the dam body plane arrangement and the stress stable analysis computation; Sixth chapter for the flood discharge design, mainly is the top of dam detailing and the downriver disappears can design; Seventh chapter for blows off the building the design, mainly is to imports the building the detailing strobe arrangement and Kong Shen and the exportation disappears can the design; Eighth chapter pilots the system and the power plant workshop design for the power plant, mainly is directs the system and the power plant workshop design to the power plant; Ninth chapter is ground processing, including ground excavating, the cleaning up, solidifies the grouting, the curtain is in the milk and all that some processing measure.

第一章为综述，主要介绍了工程的基本概况；第二章为坝址水文特性，介绍了鄂-01枢纽工程所在流域特别是坝址附近的水文气象概况；第三章为枢纽及库区地形地质条件，介绍说明了坝址特别是坝轴线附近的地形地质条件；第四章为枢纽建筑物的选型及水文计算，包括确定枢纽的工程等级，建筑物选型，调洪演算，放空底孔断面尺寸的拟定和初步拟定枢纽布置方案；第五章为拱坝尺寸拟定和坝体布置，包括拱坝的选型、拱冠梁剖面的确定、坝体坝基防渗排水设施的布置及坝体的平面布置和应力稳定分析计算；第六章为泄洪的设计，主要是坝顶的细部设计和下游消能设计；第七章为放空建筑物的设计，主要是对进口建筑物的细部设计闸门布置及孔身和出口消能的设计；第八章为电站引水系统及电站厂房设计，主要是对电站引系统和电站厂房的设计；第九章为地基处理，包括地基的开挖，清理，固结灌浆，帷幕灌浆以及其他一些处理措施。

As illustrated in Fig. 10-1,the initial design activities（such as identification of the design need,formulation of design specifications,feasibility study with collecting relevant design information,and design conceptualization）are part of the synthesis subprocess.That is,the result of the synthesis subprocess is a conceptual design of the prospective product in the form of a sketch or a layout drawing that shows the relationships among the various product components.

如图10-1所示，原始设计活动，如设计需求的认定，设计规格说明的规划，根据收集的相关设计信息进行可行性研究以及设计概念化等，都属综合子过程部分；即综合子过程的结果是各个产品部件间的关系以草图或布局图的形式来表示的所期望产品的概念设计。

Anna: No, I've got a hangover.

不是，我昨晚宿醉了。

We head into the mountains in Su's new Land Cruiser, stop for lunch at a scenic restaurant and then hang around drinking beer and eating fruit as two of his employees attempt to lure the birds with a tape recording of the fowl's mating call.

我们坐上苏的巡逻车向山顶出发，在一家风景优美的餐馆吃了中饭。然后我们喝着啤酒吃着水果四处逛。