快速修复技术在潜艇维修中的应用

结合潜艇机电设备发生的损伤和故障，分析了纳米减摩、等离子喷涂、复合材料微波堵漏、电子设备快速清洗等机电设备损伤修复技术在潜艇现场维修中的应用。     

装备维修保障最佳路径决策算法

最佳保障路径的选择是装备维修保障决策的重要组成.该文通过对装备维修现状和未来需求,提出了一个全新的综合智能保障路径决策方法.首先完成了对装备维修的最短可能路径的计算,涉及的因素包括对方作战威力、双方兵力的活动设置和行动计划;然后通过Hopfield网完成了路径选优,得到了最佳的保障路径.     

减速顶的维修管理与报废期的探讨

通过对我国减速顶现有用、管、修维修管理模式的分析，指出继续落实和不断完善减速顶的专业化维修工作的重要性。探讨制定减速顶报废期的重要意义和影响报废期的各种因素，指出认真执行标准的重要性，希望能够尽快制定出统一的报废期标准给以遵循。     

TBTC下的分路不良对策与管理办法

本文针对现场25Hz相敏轨道电路存在的分路不良问题，进行了系统分析，并提出了针对性解决方案，以及有效的管理办法。     

铁通运维信息系统的研究

根据铁通公司的运维工作、部门划分、业务范围及网络类型，开发铁通运维信息系统。系统采用三层模式架构，用户验证与授权实现了控制反转，具备了数据智能分析、自动派单、事务时限功能。同时系统使用双机热备份，保障持续稳定运作。     

涡轮增压器失效分析

分析涡轮增压器失效原因,提出使用、检查、保养注意事项。     

兰新高速铁路综合维修天窗设置方式研究

在分析兰新高速铁路的线路、运输组织、车站、接触网、综合维修、供电制式等方面特点的基础上,研究兰新高速铁路综合维修天窗的时间需求,重点确定兰新高速铁路天窗开设方式,建议采用分段矩形天窗。并通过铺画列车运行图,分析兰新高速铁路开设分段矩形天窗对跨线旅客列车终到时间、通过能力、运行调整等方面的影响。按客流区段设置分段矩形天窗可以保证综合维修作业和行车的安全。     

通用虚拟维修训练仿真软件的设计与实现

文章针对虚拟维修技术发展的现状，构建了一个虚拟维修训练通用仿真软件设计方案，并研究了该方案下的实现方法。在该方案下开发了某型发动机的虚拟维修训练系统，对系统的可实现性进行了验证。通过对该虚拟维修训练通用仿真软件的研究，对促进虚拟维修训练技术的发展具有重要的意义。     

面向不同管理需求的交通基础设施养护数据平台建设

为了掌握交通基础设施技术状况、服务于养护技术经济指标分析,基于不同层级管理目标的信息化需求,通过详细分析不同层级需求的数据及其来源,设计了可服务于不同管理层级并用于管理主体交互的基本数据组成、获取和更新路径。此外,以数据设计为基础,展示了数据平台应用于申嘉湖高速公路的管理案例。     

Analysis of within-household effects and between-household differences in maintenance activity allocation

This paper investigates the allocation of household individuals to out-of-home maintenance activities using the rich activity-travel diary data from the San Francisco Bay Area. Two inter-related decisions are considered in this context: (i) whether the given activity episode is performed individually (solo) or jointly, and (ii) the person who participates in the activity, if it is a solo activity. To account for the conditional nature of the solo activity person selection, a nested mixed logit modeling framework is proposed and implemented to jointly analyze person allocation for all maintenance activities performed by a household on a given day. The model is used to investigate within-household effects and between-household differences. The proposed model relaxes some important restrictions in person allocation models by accounting for various sources of correlations and relaxing the assumption of constant variance across households. The proposed model is used to analyze the differences in person allocation between different types of households. The results indicate that life-cycle and household role, income, gender, employment status, and several types of constraints (activities including cost, time-availability, vehicle-availability, coordination constraints, and child-care obligations) affect person allocation decisions in the context of maintenance activities. The empirical results indicate the presence of various sources of correlations across persons, over activities, and within-household that are significant. In addition, the data also provides evidence that the unobserved variances in person selection utilities are not constant across households. A better understanding of these within-household interactions and between-household differences may be used in activity-based simulation models and to develop more effective and focused demand management measures.