初步设计的模型

The second is that meshcan be fine as required for we have solved the conventional problem that the shell'smesh must be limited in notch.Moreover,the mesh size's significance to the resultsis displayed by calculation and compare of models with different mesh sizes.Besides,we have simulated the cloud-shaped field distribution of moving FAE Devices with adynamic program.The results can provide the elementary basis for structure designadapted to new launching conditions.

二是突破了传统的壳体网格划分只能沿刻槽的限制，使网格可以细化，并通过不同网格尺寸的模型计算与比较，显示了网格划分对结果的影响程度；此外，使用自行编制的动力学程序，对运动FAE装置云雾场分布规律做了简化的数值模拟，为工程部门提供了在新的发射条件下改进弹体结构设计的初步依据。

Under the guide of the model of HHII, those components and presentation are used to develop a new interface of CoEditor. This test expounds and proves the model of HHII reasonable and the scheme of the tool practicable at the beginning. This paper also makes an application cooperative system, ACAutoCAD98, as an example, in order to analyze how the tool can be utilized to develop HHII. 4. It puts forward a concept of dynamic multi-cursor and its realization, combined with the research on CoEditor.

因实现整个工具的工作量很大，本文仅开发了群体组成构件、协同过程构件和它们的界面资源，并在模型的指导下，将它们应用于协同编辑系统界面的开发，通过有／无模型指导的界面开发试验，初步论证模型的合理性和工具设计方案的可行性；本文还以应用协同工具ACAutoCAD98为例，分析了利用界面开发工具开发其人-人交互界面的过程。

The numerical results reveal that the strength of composite increased with strain rate and inclining to a consist.

这一套模型、方法和程序为设计单向金属基复合材料提供了初步基础，为改进工艺提供了初步的力学依据。

Furthermore, buckling effect factors and their influence law are exploited. Finally, combining the character of piles foundation with high bridge piers with engineering practice, four optimal mathematic models are proposed and flow diagram of optimization analysis is fulfilled by the computer optimum program. A numerical example is analyzed to get optimal solution by using this program. Meanwhile based on the optimal model with buckling coefficient as the objective function, parameter variables are discussed about their effect rule toward the optimal value of objective function.

最后，针对高桥墩桩基础的特点，在基本优化模型的基础上，根据不同的目标函数建立了相应的优化模型，给出优化设计算法流程图，编制了相应的优化计算程序；并根据高桥墩桩基的工程实际设计了一个数值算例，采用本文编制的优化计算程序对该结构进行优化，得到了优化后的最优解；同时，采用高桥墩桩基屈曲系数作为目标函数的优化模型进行因素分析，初步探讨了参数变量对目标函数最优值的影响规律和程度。

In order to solve the repeat modeling in the process of the hull scantling rule check,finite element analysis and production design,the some key technology about the transfer of ship initial scantling model to finite element model is studied.

针对目前船体结构规范计算、有限元分析和生产建模过程中存在的重复建模的问题，研究了船舶初步结构设计模型向有限元模型转换中的几项关键技术，提出了模型转换的方法，开发了模型转换软件，并在16 500t液化气船上进行了局部应用，收到了一定的效果，值得进一步推广应用。

This paper mainly focused on some basic research as follows:(1) ANSYS finite element calculation software and the APDL design language were used to set up two model structures—the reinforced concrete floor model and the prestressed space composite trass model.

本文就该结构做了以下几点基础性研究工作：(1)利用ANSYS有限元分析软件和APDL参数设计语言建立了两个模型：钢筋混凝土楼板模型和预应力空间组合结构模型，对楼板模型和预应力空间组合结构模型分别进行了非线性静力分析，模态分析和竖向动力荷载下的非线性瞬态分析，并对两种结构的力学行为做了比较，得到了一些初步结论。

Through the analysis of the field observation and the investigation of the randomness of the railway haulage system of the shaft station, a limited customer M/ M/ 1 queuing model of cradle dumpers in the station is developed and the optimum design of shaft stations is approached.

通过现场观测与调研及对井底车场轨道运输系统随机性的分析，建立了井底车场翻车机系统顾客源为有限的M／M／1排队模型，进行了井底车场优化设计的初步探讨

For drawn workpiece design, it has dig out relationship knowledge between target functions of forming quality and parameters of drawing control curves model through rought set thoery.

通过分析数值模拟结果及拉延件设计模型，利用粗糙集理论初步挖掘了拉延成形模拟结果中成形质量与对应工序件控制线模型参数之间的关系，深层次知识的挖掘有待进一步研究。

In the design, a lot of key problems were solved, including the decomposition of a complicated control task, the construction of the quasi-equivalent model of the complex object, the design of the characteristic model and multi control modes, the parameter optimization with multi goals, and the assimilation, accommodate and the study evolution of sensory-motor intelligent schema. So a quick effective transition from simulation design to the real-time control was preliminary realized.

在设计上，解决了复杂控制任务分解、复杂对象类等效模型建立、特征模型与多控制模态结构设计、多目标多参数优化、以及动觉智能图式的同化、顺应和进化等关键问题，初步实现了从仿真设计到实时控制的快速有效过渡。

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。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。