The relationship between some typical quayside container and wharf * over the world had been systematically studied in this thesis . based on the analysis of the wharfing process , a tow - step approach was designed to configure the crane 本文对国内外具有代表性的部分集装箱码头的装卸桥与码头关系了系统研究，在码头工艺分析基础上，确定了对装卸桥配置的分析，并将装卸桥配置研究界定在二个面上。
The forming technology data have been defined on the analysis of the forming technology of az31 magnesium alloy thin - walled tubes by using isothermal forming and forward extrusion deforming of hollow blank process and the design of die structure has been introduced 摘要本文通过对az31镁合金薄壁管材成形的工艺分析，采用了空心坯正挤压、等温成形的工艺方法，确定了其成形工艺参数，并介绍了该薄壁管材的挤压模具结构设计。
In chapter 5 , the means of structure design and part design are researched on . then the realization of structure design using top - down design is presented . with information of separated loops , the efficient part design has been achieved 第五章研究了系统结构设计与零件设计的实现方式，重点分析自顶向下设计方法在级进模结构设计中的应用；并根据工艺分析系统的特征环几何信息来设计凸凹模零件，实现工作区零件的快速设计。
Abstract : through analysis of typical technology for some lost wax casting examples , it is expounded that improvement of casting design with more reasonable technology offers an effective and simple way to obtain highly qualitative and compact castings without porosity and shrinkage defect 文摘:通过对几个典型生产实例的工艺分析，说明用修改精铸件结构设计的方法，使铸件结构更具合理的工艺性，是获取优质精铸件的一条行之有效和便捷的途径。
Upon technology analysis of series 350 crankshaft forging pieces of chevroler , proper forging technology has been designed adn forging die been optimized , resulting in high quality crankshaft forging pieces with high accuracy , good appearance and reasonable streamline , produced in model kp8000t crankshaft production line 摘要通过对雪佛莱350系列曲轴锻件的工艺分析，设计了合理的锻造工艺方案，优化设计了锻模，在kp8000曲轴生产线上锻造出了精度高、外观质量好、流线合理的优质曲轴锻件。
On the basis of construction technique of large diameter bored hollow pile of prestressing force concrete , through the program of marc , this paper analyses the pile vertical bearing capacity under different lengths , diameters and strength parameters of mediators as well as the inner force and displacement under lateral and combined loads , giving the criterion of rigid pile and flexible pile . with elastic theory , the paper establishes the inner force calculating formula under eccentric load . this research findings will set a firm theoretical foundation for its widely application 本文在对大直径钻埋预应力混凝土空心桩施工工艺分析研究的基础上，运用marc软件，对竖向荷载作用下不同桩长、桩径及桩周介质强度参数时空心桩的承载力性状，以及水平向荷载及其组合荷载作用下空心桩的内力、位移变化规律进行了仿真分析，提出了大直径钻埋预应力混凝土空心桩的刚性与柔性界定标准。
Upon author ' s long distance experience in producing aluminum easy open can , he had studied and researched deeply many kind of easy open cans in the worlds , analyzed the technique of key several production program of can making and solved a series of key technical problems during the process of light - weighting such as , aluminum raw material , can profile design , press technique and mould design etc . after carrying out light - weighting , the used aluminum raw material thickness of easy open can ' s body could be thinned from 0 . 325mm to 0 . 285mm , the weight of gram per can could be reduced from 13 . 625g to 11 . 948g , its economic benefit could be more big obviously 本文在对国内外轻量化技术的应用现状进行深入分析的基础上，从技术层面对易拉罐轻量化实施过程中的若干关键性问题进行了探讨。通过对国内外各种罐型所进行的深入研究，从易拉罐制造过程中关键工序的工艺分析入手，解决了轻量化实施过程中罐用材料、罐型设计、冲压工艺、模具设计等一系列关键技术难题。轻量化技术成功实施后，易拉罐罐体所用铝材厚度从0 . 325mm减少到0 . 285mm ，单罐克重从13 . 625g降低到11 . 948g ，取得了明显的经济效益。
The goal of analyzing the instability in complex sheet metal forming is reached using the forming limit stress diagram as criterion in this thesis . some different sheet metal forming parts are analyzed with the developed software , whose results show that the developed software is satisfying for technological analysis of sheet metal forming and the applied module attains the anticipated goal 并用所开发的应用软件成功地对板成形零件的有限元计算结果进行了分析,分析结果表明,用该软件分析板成形零件的失稳情况的结果可以满足板成形工艺分析要求,所开发的应用软件模块达到了预期目的。
On the basis of construction technique of large diameter bored hollow pile of prestressing force concrete , through simulation test , this paper simulates the interaction of pile with side mediator and pile with end mediator respectively under different conditions of injected cement paste , analyses the changing regularity of ultimate skin friction in different depths and different mediators , and also studies the changing regularity of end resistance in different end mediators 本文在对大直径钻埋预应力混凝土空心桩的施工工艺分析研究的基础上，通过室内模拟试验，分别模拟桩与桩侧、桩端介质不同注浆情况下的相互作用性状，分析了桩侧介质变化时不同深度处桩侧极限摩阻力的变化规律和桩端介质变化时桩端承载力的变化规律。
On the basis of analyzing the respective development and current situation at home and abroad of cad / cae / capp technology , this paper brings forward the research direction - integration and intelfectualization combining the expert system . by the analysis of the characteristic and restriction of the gear components , this paper upbuilds the characteristic model based on the restriction and actualizes data transmission and information sharing among cad . cae and capp . this paper analyzes the general principle of parameter determination and strength check about gear and researches the algorithmic of gear strength check based on the characteristic . this paper introduces expert knowledge into respective procedure of cad . cae and capp and actualizes the intellectualization in design process . strength analysis and process planning . on the basts of aforementioned research . this paper develops the cad / cae / capp integration software of gear components by means of the active - automation technology provided by autocad and vb and conducts the integration with general mechanical and shaft components integrated designing system . the application of the software indicates this system has perfect function and project applied cost 本文在分析国内外cad cae capp技术各自的发展历史与现状的基础上，结合专家系统，提出了智能集成的研究方向。以齿轮类零件作为研究对象，在分析了其特征及约束的基础上，利用数据库技术和图形单元建模技术，建立了基于约束的特征模型，实现了cad cae capp之间的数据传输和信息共享；分析了齿轮参数确定、强度校核的一般原则，进行基于特征的齿轮强度校核的算法研究；将专家知识融入在cad 、 cae 、 capp各个过程中实现了设计过程、强度分析和工艺分析的智能化。在上述研究的基础上，利用autocad2000提供的activexautomation技术，以vb为开发工具，开发出了齿轮的cad cae capp集成软件，并与其它机械通用件设计系统进行了集成。
