繁忙电铁干线便携式轻型稳固四轮梯车的研发与应用

分析了繁忙电铁干线旅客列车持续提速后接触网设备巡检常用四轮梯车的不适应性及其新型替代产品研发的必要性、可行性，进而阐述了便携式轻型稳固四轮梯车结构设计、现场应用及其推广使用前景。     

丰田生产方式及其思考

丰田生产方式起源于本世纪５０年代，其两大支柱是准时化生产和自动化。这是一种现代化的工业生产方式，它不但创造了“有路必有丰田车”的奇迹，而是超出了生产制造的范畴正在全范围内的许多领域发挥作用。     

阵元位置误差对MMUSIC算法测向性能的影响与分析

首先对MMUSIC算法进行了分析和仿真.然后重点讨论了阵元位置误差对MMUSIC算法测向性能的影响,并以均匀直线阵为例进行了仿真实验.从理论推导和仿真结果可以看出,天线阵阵元位置误差严重影响着MMUSIC算法测向性能,得出了有用结论.     

深水钻井平台定位系统评估

This paper addresses the need for systematic evaluation of the station keeping systems of deepwater drilling semi-submersibles. Based on the selected drilling semi-submersible configuration, the mooring systems were analyzed and designed for a range of water depths using different mooring line materials. These were steel wire rope, polyester rope and HMPE (high modulus poly ethylene). The mooring analysis was carried out using the advanced fully coupled time domain analysis method in the computer software package HARP. Diffraction analysis was first applied to solve the hydrodynamic properties of the vessel and then the motion equations of the complete dynamic system including the drilling rig, the mooring lines and risers were developed and solved in the time domain. Applying the advanced analysis method, a matrix of mooring systems was developed for operating in water depths of 1 000 m, 1 500 m, and 2 000 m using various mooring materials. The development of mooring systems was conducted in accordance with the commonly adopted mooring design code, API RP 2SK and API RP 2SM. Fresh attempts were then made to comparatively evaluate the mooring system’s characteristics and global performance. Useful results have been obtained in terms of mooring materials, water depths, and key parameters of mooring configurations. The results provide in-depth insight for the design and operation of deepwater mooring systems in the South China Sea environment.     

繁忙干线同期移设既有接触网混凝土柱及悬挂装置

近期，繁忙电铁京广干线200km/h提速标准线建设不断加快，工务线路小半径曲线改为大半径曲线施工是200km提速标准线建设重要组成部分，而工务线路拨移无法保证线路两侧接触网混凝土柱及悬挂的既有标准参数，这要求接触网混凝土柱及悬挂随线路变化进行重新移设施工改造。在移设接触网混凝土柱及悬挂施工改造中常采取新混凝土柱代替既有混凝土柱，在新混凝土柱上装新支撑装置倒装悬挂，清除既有混凝土柱及支撑装置，该方案涉及购置新料、调用起重机械、占用正线大量的天窗点等诸多问题。因此，结合多年的既有线接触网施工经验，提出了繁忙电铁干线同期移设既有接触网混凝土柱及悬挂的方案，供同仁参考。     

挪威Raftsundet桥简介

挪威Ｒａｆｔｓｕｎｄｅｒ桥连接Ａｕｓｔｖａａｇｏｅｙ和Ｈｉｎｎｏｅｙ两个岛屿，横跨Ｒａｆｔｓｕｎｄｅｒ海湾，为四跨不等跨的混凝土连续刚构，跨径为８６＋２０２＋２９８＋１２５ｍ。文中介绍了Ｒａｆｔｓｕｎｄｅｒ桥的方案比选和设计、施工概况。     

SYD160型转向架构架强度的优化设计

介绍了焊接转向架构架的结构特点，用有限元法对其进行了强度计算和优化设计。