用于车身制造质量控制的白车身测点布置及优化

在对检测点进行分类定义后阐述了车身设计阶段各类测点的布置原则，在此基础上提出了面向制造偏差诊断的测点布置位置优化方法。     

车辆主动悬架系统的LMS自适应控制

选择LMS自适应滤波算法，通过调整自适应滤波器的权系数使二次性能指标达最小，根据单个样本方差的负梯度来调节权系数；得到控制输出。针对简化的车辆模型，将空钩控制、广义自适应控制与LMS自适应控制相对比。仿真计算表明，主动悬架系统LMS自适应控制策略不仅计算简单，而且理论上在主动悬架系统中的应用是切实可行的，性能明显优于其它对比控制方法。     

部分剪力连接钢-混凝土组合梁附加变形计算

本文在滑移应变微分方程的基础上 ,建立部分剪力连接钢 -混凝土简支组合梁由滑移引起的附加变形方程及组合梁变形计算的一般公式 ,得到了部分剪力连接简支组合梁的附加变形和变形与剪力连接程度系数之间的关系与规律 ,公式简单实用     

系杆拱桥无支架施工探讨

本文结合上海市青浦区蒸浦大桥施工实践 ,简要介绍了钢筋混凝土系杆拱桥无支架施工的工艺。     

Introduction: Habitual travel choice

In this introduction to the special issue on habitual travel choice, we provide a brief account of the role of habit in travel behaviour, discuss more generally what habitual choice is, and briefly review the issues addressed in the solicited papers. These issues include how habitual travel behaviour should be measured, how to model the learning process that makes travel choice habitual, and how to break and replace car-use habits.     

Storage space allocation in container terminals

Container terminals are essential intermodal interfaces in the global transportation network. Efficient container handling at terminals is important in reducing transportation costs and keeping shipping schedules. In this paper, we study the storage space allocation problem in the storage yards of terminals. This problem is related to all the resources in terminal operations, including quay cranes, yard cranes, storage space, and internal trucks. We solve the problem using a rolling-horizon approach. For each planning horizon, the problem is decomposed into two levels and each level is formulated as a mathematical programming model. At the first level, the total number of containers to be placed in each storage block in each time period of the planning horizon is set to balance two types of workloads among blocks. The second level determines the number of containers associated with each vessel that constitutes the total number of containers in each block in each period, in order to minimize the total distance to transport the containers between their storage blocks and the vessel berthing locations. Numerical runs show that with short computation time the method significantly reduces the workload imbalance in the yard, avoiding possible bottlenecks in terminal operations.     

基于LMS自适应滤波的模糊控制主动悬架研究

以车辆操纵稳定性及行驶平顺性为控制目标，根据路面一车辆系统的特点，提出一种在线可调整的模糊控制算法，利用LMS自适应模块调整模糊控制器的自调整因子，改善单一模糊控制算法对专家先期经验的依赖。针对简化的车辆模型，以路面信号作为激励源，进行悬架系统的振动控制研究，结果表明提出的算法对车辆悬架系统的振动控制具有较好的适应性。     

A cross-country study of fairness and infringement on freedom as determinants of car owners' acceptance of road pricing

Jakobsson et al. (2000) found that in Sweden public acceptance of road pricing decreases if it is perceived to be unfair and to infringe on freedom. The present study reports a survey investigating whether the same effects are found in the Asian countries of Japan and Taiwan. The results indicate that fairness plays the same role. However, income had a direct effect on acceptance in Taiwan but not in Japan or Sweden.