Function Integration for Lightweight Chassis Based on Axiomatic Design and Design Structure Matrix

Function integration is the way used commonly to achieve the lightweight design system. To realize the design successfully by combing two systems multifaceted issues in need to be considered. The potential functional conflicts between the existing systems are the major unfavorable factors limiting the design. In order to complete the better design, the functional and physical relationships in the systems should be figured out. This paper proposes the approach, by which the function integration process is expressed using the axiomatic design. In the design process, the mutual relationships of design parameters in the systems are investigated by means of design matrices. The design concepts are compared and evaluated by the method combining the axiomatic design and design structure matrix.     

Active control strategy for the running attitude of high-speed train under strong crosswind condition

This paper focuses on the safety of high-speed trains under strong crosswind conditions. A new active control strategy is proposed based on the adaptive predictive control theory. The new control strategy aims at adjusting the attitudes of a train by controlling the new-type intelligent giant magnetostrictive actuator (GMA). It combined adaptive control with dynamic matrix control; parameters of predictive controller was real-time adjusted by online distinguishing to enhance the robustness of the control algorithm. On this basis, a correction control algorithm is also designed to regulate the parameters of predictive controller based on the step response of a controlled objective. Finally, the simulation results show that the proposed control strategy can adjust the running attitudes of high-speed trains under strong crosswind conditions; they also indicate that the new active control strategy is effective and applicable in improving the safety performance of a train based on a host–target computer technology provided by Matlab/Simulink.     

自动化生产线在市政管片厂的应用

文章介绍了地铁盾构管片的生产工艺、自动化生产线的工作原理,以及自动化生产线生产的优点与效果,并且阐述了自动化生产线存在的不足及注意事项。     

基于层次分析法的张家港木材流通中心选址

利用层次分析法,建立了张家港木材流通中心选址问题的结构模型,对流通中心的各备选地址进行了评估,选出最为合适的中心地址,为张家港的木材流通中心选址决策提供了科学依据.     

国内外深层过滤理论的最新研究进展

目前,深层过滤越来越被广泛的应用于生活给水、城市污水以及工业废水的处理之中；本文简要介绍深层过滤理论,重点评述国外学者研究构建过滤数学模型的方法,以及最新的研究进展。     

电视监控系统在城市轨道交通中的应用

介绍了基于MPEG-4压缩技术、SDH光纤传输技术和大容量硬盘存储技术的电视监控系统在城市轨道交通中的应用问题.     

欧盟组织机构

欧盟(EU)作为当今世界最大的区域性一体化组织,近年来在海上安全立法方面的凌厉攻势引起了国际海事界的广泛关注。从2000年3月到2005年11月的短短五年间,欧盟连续出台三套一揽子海上安全措施,特别是2005年11月通过的第三套海上安全一揽子措施(简称MSP3)以前所未有的力度和广度推出了6项与国际航运有关的建议草案。MSP3的实施将对国际海事立法产生深远影响。鉴于此,我刊从本期开始,特辟“聚焦欧盟”专栏,旨在及时跟踪欧盟在海上安全立法方面的最新动态,以期为国内外广大读者了解欧盟及国际海事立法动向提供有益参考。     

南京地铁1号线南延线列车乘客信息系统

南京地铁1号线南延线列车与南京地铁1号线原有车辆最大区别就是采用了全新的乘客信息系统。详细介绍系统的设备配置、主要设备组成,该系统可实现运行信息播报和显示、视频资讯、图像监控等功能。     

保供应 保质量 降成本 积极服从服务运输安全生产大局

<正>1 2009年物资工作简要回顾1.1节支降耗工作取得显著成效按照路局确定的节支降耗目标,物资部门从大局出发,主动领任务、积极想办法,充分发挥职能作用,研究出台了13项可行性节支降耗措施。面对严峻的市场经营形势,积极与各供应厂商沟通协调,不断加大政策宣传力度,对局管物资供应价格在公开招标确定的最低执行价格     

非交错网格下Boussinesq方程的源函数产生波浪的方法

针对由Beji型的Boussinesq方程推导出的在计算域内产生波浪的源函数,应用有限差分法的Adams-Bashforth-Moulton预报校正格式,在非交错网格下进行数值模拟。在一维方向上进行离散,对一维平底地形和潜堤地形进行了数值模拟,数值计算结果与物理模型试验结果吻合较好,表明采用源函数的方法可以很好地在数值计算域内产生波浪。