基于自动设计方法的数字逻辑课程改革研究与实践

针对目前数字逻辑课程存在的知识老化、内容严重滞后于现代数字电子技术发展、与后续课程脱节等问题,提出了基于自动设计方法进行数字逻辑课程改革的思路。引入硬件描述语言和EDA技术等新知识,设计了先进的课程教学体系;基于EDA技术,构建了系统的、多层次的实验教学体系,且实验体系与计算机专业后续实验课程具有很好的延续性。研究成果已在4届学生中实施,并取得了显著成效。

一种角钢节点的自动设计方法

将节点处相连接的杆件按功能面进行划分 ,对每一个功能面根据其杆件的布置情况确定节点板的形状 .将节点上所有节点板根据所在功能面的重要程度进行剪裁和组装 。

一种数码迷彩计算机自动设计方法

文章提出了一种科学、快捷、高效的数码迷彩计算机设计方法,实现了不同背景条件下大面积数码迷彩的自动设计。利用计算机图像处理功能,对包含目标的背景图像进行小波分解,提取背景图像的识别特征。而后在重构的过程中加入融合算法,生成融合图像,并通过评价模型对生成的融合图像进行评价,进而修正融合算法。最后,根据生成的融合图像,进行颜色量化,指导数码迷彩的施工。

压力机参数化自动设计方法的开发

21世纪以来，我国汽车、电子行业日益蓬勃发展,它们对钣金冲压件的需求也越来越大。而压力机作为重要的生产制造装备，发展势头迅猛，市场需求量日益膨胀,尤其是机械压力机。本文将讨论的就是机械压力机的日常设计工作如何使用电脑程序来实现自动设计。

单纯形调优法在多层膜系优化设计中的应用

采用单纯形调优法对多层光学膜系进行了优化设计 ,并开发了相应的优化设计程序。用该优化程序已经成功地设计出了可见光区高增透膜系。与其他光学薄膜自动设计方法得到的结果相比 ,在膜系层数相同甚至更少的情况下 ,用该方法可以得到很好的优化效果 。

基于CAE的轴箱铸造工艺分析及优化设计

近年来,随着精确模拟系统软件的出现,将铸造工艺设计的各种因素综合起来,形成一种高效、高精度的通用工艺设计方法已经成为可能。这种方法能够处理很多难题,并且由于该方法自动化程度很高,即使经验较少的铸造人员（如新的铸造工程师）也能高效设计铸造工艺。过去，一些工厂往往由于经验丰富的设计师退休而产生很大问题，而自动设计方法的使用会大大降低这种冲击。

Sliding mode robust controller for automatic rectification of shield machine

According to the actual engineering problem that the precise load model of shield machine is difficult to achieve,a design method of sliding mode robust controller oriented to the automatic rectification of shield machine was proposed. Firstly,the nominal load model of shield machine and the ranges of model parameters were obtained by the soil mechanics parameters of certain geological conditions and the messages of the self-learning of shield machine by tunneling for previous segments. Based on this rectification mechanism model with known ranges of parameters,a sliding mode robust controller was proposed. Finally,the simulation analysis was developed to verify the effectiveness of the proposed controller. The simulation results show that the sliding mode robust controller can be implemented in the attitude rectification process of the shield machine and it has stronger robustness to overcome the soil disturbance.

Design and dynamic simulation of hydraulic system of a new automatic transmission

A new hydraulic system of a novel automatic transmission (AT) was designed. The dimension and structure of valves and cylinders were designed by theoretical calculation. The dynamic simulation model of hydraulic system of AT was established by ITI-SimulationX. Simulation results and theoretical design results were compared to confirm the simulation model. Based on the confirmed simulation model, the simulation results of pressure and flow of the hydraulic system were analyzed. The dynamic simulation method is very helpful for designing and analyzing the performance of hydraulic system and further optimization design. The theoretical design method and dynamic simulation model are feasible for the real industrial applications. The research results can be used in hydraulic system design and optimization.

Multi-stage optimum design of magazine type automatic tool changer arm

To enhance machining efficiency,tool change time has to be reduced.Thus,for an automatic tool changer attached to a machining center,the tool change time is to be reduced.Also the automatic tool changer is a main part of the machining center as a driving source.The static attributes of the automatic tool changer using the commercial code,ANSYS Workbench V12,were tried to interpret.And the optimum design of automatic tool changer arm was proposed by performing the multi-stage optimum design.The shape optimization of the automatic tool changer was proposed and the result was verified to obtain acceptable improvements.It is possible to obtain an optimized model in which the maximum deformation,maximum stress,and mass are reduced by 10.46%,12.89% and 9.26%,respectively,compared with those of the initial model.Also,the results between conventional method by the design of experiments and proposed method by the multi-stage optimum design method were compared.

Combined method for parallel manipulator configuration design

Configuration design is an essential, creative and decision-making step m parallel manipulator design process, in which modeling and assembly are iterative and trivial. Combined approach with automatic parametric modeling and automatic assembly is proposed for parallel manipulator configuration design. The design process and key techniques, such as configuration design, configuration verification, poses calculation of all parts in parallel manipulator, virtual assembly and etc., are discussed and demonstrated by an example. A software package is developed for parallel manipulator configuration design based on the proposed method with Visual C＋＋ and UG/OPEN on Unigraphics.

Shape optimization of curved slots on 3D surface

In the aeronautic and aerospace thin-walled structures,hole shape designs are very popular to achieve the weight reduction,structural repa-ration,