试论1—型智能控制系统

本文在对各种类型的智能控制系统进行划分的基础上来研究１－型智能控制系统，首先建立了１－型智能控制系统的基本定义、概念和结构模型，然后区别性地讨论了与“智能”相关的若干概念，最后指出了目前研究１－型智能控制系统的方向。     

试论1－型智能控制系统

本文在对各种类型的智能控制系统进行划分的基础上来研究１－型智能控制系统。首先建立了１－型智能控制系统的基本定义、概念和结构模型，然后区别性地讨论了与“智能”相关的若干概念，最后指出了目前研究１－型智能控制系统的方向。     

基于智能Agent的网络安全监控系统的研究

提出了一种称为IA－NSM（网络安全监控的智能Agent)的全新方案，它基于智能Agent技术，用于监控和管理Intranet环境下内部结点。IA－NSM是在传统的网络环境中集成了一个灵活的多Agent系统，从而加强了对受控结点非法行为的防范能力，介绍了基于智能Agent技术的网络安全监控系统的应用背景，系统功能，Agent分类和系统模型以及安全策略的制定原则。     

粒子群算法在机械零部件可靠性优化设计的应用

粒子群算法(Paarticle Swarm Optimization)是一种新出现的群智能(Swarm Intelligence)优化方法。本文所介绍将其应用于机械可靠性优化设计，建立基于粒子群算法的机械零部件可靠性优化设计的数学模型，并与遗传算法作了对比试验。结果表明，粒子群算法可以快速、有效求得优化解，是求解机械可靠性优化设计问题的一个较好方案。     

网前水塔树状管网系统优化设计研究

根据用水流量的变化，在考虑加压泵站分级供水的基础上，针对网前水塔树状管网系统各组成部分的压力和流量关系，以管网系统年费用最小为目标函数，建立了这一类型管网系统优化设计的线性规划模型。应用所建立的优化设计模型，在保证管网系统各节点所需流量和压力条件下，可确定输水管段和配水管段尺寸、水塔高度和泵站扬程的最优值，获得网前水塔树状管网系统的优化设计方案。     

施工方案智能决策支持系统的面向对象模型

本文应用面向对象技术分析建筑施工组织设计，建立了包括施工项目子模型和施工活动子模型的施工领域模型，并在此基础上建立了施工方案智能决策支持系统模型。同时以钢筋砼建筑的施工方案决策为例，提出了知识库中知识的面向对象表示与增长机制以及决策过程的实现方法。     

基于支持向量机回归的智能交流接触器PWM分时控制参数优化

智能交流接触器控制模块PWM占空比的选取要依据设计者经验,造成PWM占空比组合不是最优的,影响接触器吸合动态特性。针对这种情况,提出PWM分时控制策略及支持向量机回归参数优化方法。在不同PWM分时控制组合下测试智能交流接触器动态特性,根据实验数据采用支持向量回归机方法建立PWM控制模型并优化控制参数,应用该模型对预测样本进行评估分析。实验结果表明,PWM控制模型能准确反映接触器吸合动态参数与PWM控制组合之间的内在规律性,对智能交流接触器控制方案的优化设计具有参考价值。     

基于交叉认证网的证书验证优化设计

针对现行证书验证方窠存在的缺陷和交叉认证网模型中证书验证的复杂性，得出对交叉认证网模型证书验证进行优化的必要性，并提出了一个优化的证书验证方案，给出了优化设计的思路，对各种优化设计的技巧进行了说明，最后给出了该方案的实现流程图。     

一种改进的静态克隆选择算法及其应用研究

建立了一个基于人工免疫原理的入侵检测系统模型，该模型融合了智能协议分析、克隆选择、人工免疫、遗传算法等多种智能技术，对其中的克隆选择算法进行了研究，对Forrest的静态克隆选择算法提出了改进方案。仿真实验表明，改进算法在性能上优于Forrest的静态克隆选择算法。     

SCCM并行计算模型及其上的优化算法设计

本文提出了基于同步无缓冲通信的多计算机系统的一种新的并行计算模型－－ＳＣＭＭ模型，给出了其上的一些算法的优化设计例子，并在Ｔｒａｎｓｐｕｔｅｒ多机系统上设计和实现了图像重建里的ＡＲＴ算法。     

Methodology for expert-system-based support of conceptual machine design

The cumulative requirements of design cannot be satisfied without the application of computer-based systems in the conceptual phase of design. The concept of intelligent CAD systems emerged at the beginning of the eighties. A practical implementation of an ICAD system can be based on an expert system with a specialized conceptual design methodology. Design prototypes may be generated by the systematic combination of known atomized building elements. To avoid combinatorial explosion, filtering is done on three levels. In the case of the pilot design expert system PANGEA, now being developed, the geometric modelling of prototypes is based on an extended B-rep scheme.     

基于知识的产品功能分解迭代模型研究

在智能计算机辅助概念设计系统中,功能是表达产品本质的重要属性,功能分解是功能设计的重要内容。从智能设计的角度出发,在功能定义的基础上,对功能分解的相关理论进行分析研究,探寻基于进化设计思想的产品功能基因编码表达方法及产品功能分解智能优化的关键实现技术,以期为深入研究实用的、符合工程设计要求的计算机辅助概念设计系统提供有益参考,并结合工程实例进行验证。     

An expert system for assembly based on Axiomatic Design principles

Increasing demands for lower cost of goods, due to international competition, has developed a new area of rationalization for increased productivity which can be achieved by applying new radical methods of production principles. Design for Assembly (DFA) is one of such methods that should be considered in the early design stage in order to cope with the increasing demands of lower cost, improved working environment, and higher wages. When Axiomatic Design (AD) is implemented with DFA in an intelligent way, a new area of design concepts would be realized. This study examines some elements of intelligent design systems to assess manufacturability of a product through the development of a knowledge based expert system for assembly (KBESA). The knowledge base has been acquired from DFA along with AD concepts with emphasis on the conceptual design stage where the structure of the product as a whole is considered. These concepts have been implemented in a case study illustrating its applicability.     

Fuzzy neural networks for intelligent design retrieval using associative manufacturing features

In the conceptual design stage, designers usually initiate a design concept through an association activity. The activity helps designers collect and retrieve reference information regarding a current design subject instead of starting from scratch. By modifying previous designs, designers can create a new design in a much shorter time. To computerize this process, this paper proposes an intelligent design retrieval system involving soft computing techniques for both feature and object association functions. A feature association method that utilizes fuzzy relation and fuzzy composition is developed to increase the searching spectrum. In the mean time, object association functions composed by a fuzzy neural network allow designers to control the similarity of retrieved designs. Our implementation result shows that the intelligent design retrieval system with two soft computing based association functions can retrieve target reference designs as expected.     

Product form design using customer perception evaluation by a combined superellipse fitting and ANN approach

Product aesthetics plays an important role in new product design and development. Product form can deliver product images and affect customer’s impression to a product. However, it is usually difficult to apply conventional approaches to represent the product form precisely and effectively for modeling the relationship between product image and customer perception. The objective of this work is to develop a computational technique for product aesthetics design so that customer perception can be taken into product form design in a more systematic and intelligent manner. To achieve this aim, a novel parametric approach is proposed to introduce design parameters such as line, size, and ratio into product design model and the technique of generalized superellipse fitting is adopted to describe the outline pattern of a product. Since customer perception on a product is highly non-linear and very difficult to be described by any traditional mathematical approaches, an artificial neural network (ANN) model is therefore established to relate the design parameters and the perceptual values for the design of a new product. A case study of mobile phone design, in which twelve numerical parameters are defined for the conceptual model, has been conducted to explain the implementation of the proposed approach. A three-layered perceptron ANN model is developed to predict the perceptual values of stylishness based on a survey using 32 mobile phone samples. The results of the case study illustrate that the proposed approach can successfully generate an optimum design of a mobile phone by applying a genetic algorithm (GA) on the trained ANN model.     

Function-oriented design of a friction stir welding robot

The paper starts with the analysis on the need for intelligent manufacturing systems, and proposes our view of the solution to the problem from a mechatronic point of view. It discusses issues related to the flexible modular systems that produce modular flexible products. The paper takes a novel welding technology called friction stir welding as a case study, and investigates issues related to the design of a machine that could automate the process. It presents a function-oriented approach that could provide the guidelines in development of such a system. Along with the various alternatives of the friction stir welding machines concepts, various types of welding configurations are discussed in detail thereby providing necessary details for function-oriented conceptual design of a general-purpose robotic system. The paper, then, presents the system model for an articulated robot manipulator, as suggested by functional design, followed by simulations to investigate its suitability for such an application. The proposed solution not only ensures the achievement of requirements for the intelligent manufacturing systems, but also provides the necessary guidelines in design and development of such systems, as the concluding remarks. The paper is finalized by future developments and suggestions.     

基于实例推理方法的液压缸智能CAD系统研究

在机械产品设计阶段，设计者总是借助于已有实例或相似的实例来进行产品开发，针对这一特点，本文以液压缸设计为对象研究基于实例推理的设计方法，提出一种机械产品用实例结构与实例数据相结合的描述方法，论述产品零部件实例的分级描述模型和实例推理方法，实际应用表明，基于实例求解方式是开发系列化产品设计或改进设计智能ＣＡＤ系统的一种有效的推理方法。     

Integrated distributed intelligent system for process-control system design

In process-control system design, the Computer Aided Design (CAD) techniques have evolved a new generation of design techniques. This also paves the way for implementing Computer Integrated Manufacturing Systems (CIMS). However, the key issue to accomplishing the objectives in CAD is the automation of conceptual design. This paper first introduces the fundamentals of conceptual design for process-control system design. Then, a strategy to solve the problems in conceptual design is proposed. The associated system configuration and software implementation platform for developing intelligent systems for process control system design are presented. Finally, an application case is studied.