软件工程

Eight of the adder design, four hours to complete the project, using the Quartus II software.

8位的加法器设计，分4个工程完成的，用的是Quartus II软件。

Computer CAD design technology after 10 years of my hospital technology research and development personnel, in the development of supporting software, mass production, integrated and made breakthrough progress in industrialization, To address the complex calculation and mapping work has made important contributions.

建筑工程设计微机CAD技术经过我院科技人员10多年的研究开发，已在发展软件的配套化、系列化、集成化和产业化方面取得了突破性进展，为解决复杂计算及绘图工作做出了重要贡献。

The fluid field distribution of air-cushion vehicle is simulated with the engineering CAE software ANSYS.

采用大型工程CAE软件ANSYS对垫升车辆的气垫流场分布进行了仿真计算。

The results computed by Algor and TAT with the combination of model response analysis method and the time history analysis method are given respectively.

计算结果表明：采用不同的计算方法与计算程序得到的斜撑框架结构体系的自振特性相差较大，而结构的内力相差不大；目前的商用软件如TAT可适用于斜撑框架结构的工程设计。

Brad Amato:布拉德阿马托: I found this article long ago because I wanted to make a backup computer with my CAD engineering software installed.

我发现这篇文章很久以前，因为我想让我的CAD工程安装的软件备份的计算机。。。。

Broad application of the relevant computer software in computer analogue on new materials development and research, materials processing as well as automatic control is analyzed and also the concrete application of computers in the area of materials scientific research is approached providing designers useful refer...

分析了计算机相关软件在新材料的设计、科学研究中的计算机模拟、材料的加工工艺及自动化控制等方面的广泛应用，探讨了计算机在材料科学研究领域中的具体应用，可供从事材料研究、开发和应用的工程技术人员参考。

The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.

文中对汽车碰撞安全性的设计理论和方法进行了归类和总结，其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等；重点介绍了碰撞有限元法的基本理论和有关算法，涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等，探讨了有限元计算中的材料模型参数获取技术，开发了相应的材料试验装置及材料模型参数反求软件，在此基础上进行了基本的碰撞仿真算例和试验对比研究；文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性，指出了设计薄壁吸能构件时需要考虑的几个主要影响因素，即焊点、壁厚、横截面和预变形等；在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究，提出了吸能转向机构和自适应安全气囊的仿真研究方法；文中最后探讨了整车碰撞性能的设计与改进方法，提出了以理想碰撞特性为目标，采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法，并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究，所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车，研究结果表明，本文所提出的设计与改进方法是适用而有效的，具有重要的工程实用意义和价值。

In this paper, based on the common software Ansys, the method how to set up the contact element that between the pile and the rock for better simulating behavior of rock-socketed piles are studied. The visual software was written, which based on the improved elastic theoretic method and can be used to computing and plotting.

本文以Ansys软件为基础，在桩与岩土之间设置较合理的接触面对工程实例进行计算，又以改进的可以考虑岩石与土的分层性质的弹性理论法为基础，编制了一个具有计算及简单绘图功能的可视化软件。

Software reliability model is an important aspect of software reliability engineering research.

软件可靠性模型是软件可靠性工程研究的一个重要方面。

An engineering framework system to supp...

PDM层提供了有效的集成信息环境；开发工具层由许多单独的产品开发软件组成，这些软件封装在 PDM系统中；根据建立的过程模型，过程管理层仿真和控制产品开发过程，并在工程框架系统中有效地实现了产品和开发过程集成

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。