排序方式: 共有45条查询结果,搜索用时 15 毫秒
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浅析船舶避碰中的“背离行为” 总被引:3,自引:2,他引:1
本文针对船舶避碰中的“背离行为”,根据《1972年国际海上避碰规则》第二条“责任”,对“背离行为”的法律性质、条件、时机及其应遵循的原则作了系统的分析;并对“责任条款”提出修改意见。 相似文献
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Stefano Bruni Roger Goodall T. X. Mei Hitoshi Tsunashima 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2007,45(7):743-779
Over the last twenty to thirty years, railway vehicle dynamics has changed from being an essentially mechanical engineering discipline to one that is increasingly starting to include sensors, electronics and computer processing. This paper surveys the application of these technologies to suspensions and running gear, focused upon the complementary issues of control (which has been reviewed within Vehicle System Dynamics previously) and monitoring (which has not previously been reviewed). The theory, concepts and implementation status are assessed in each case, from which the paper identifies the key trends and concludes with a forward look at what is likely to develop over the next years. 相似文献
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介绍了常用的柴油机状态监测技术,阐述了船舶柴油机在线监测与故障诊断系统的组成及主要功能,实现了基于多状态参数的柴油机综合监测与故障诊断,对提高船舶柴油机可靠性、保障船舶运行安全具有重要意义。 相似文献
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To reduce engine maintenance cost and support safe operation, a prediction method of engine life on wing was proposed. This method is a kind of regression model which is a function of the condition monitoring and failure data. Key causes of engine removals were analyzed, and the life limit due to performance deterioration was predicted by proportional hazards model. Then the scheduled removal causes were considered as constraints of engine life to predicte the final life on wing. Application of the proposed prediction method to the case of CF6-80C2A5 engine fleet in an airline proved its effectiveness. 相似文献
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以悬索桥运营期状态评估为背景,提出以既有状态为基准进行初始张力确定的反分析方法。结合缆索力学平衡方程,提出反分析的基本原理,建立悬索桥状态评估反分析流程。以跨度为180 m的悬索桥为例,进行初始张力反分析,得到以所得初始状态为基准的活载效应理论分析结果。通过与以设计为基准的荷载效应理论解和现场实测结果的对比,分析初始张力确定的误差对桥梁挠度和缆索应力的影响。结果表明:本文提出的悬索桥缆索初始张力反分析方法精度较高、可操作性较强,对同类悬索桥状态评估中初始张力的确定具有理论借鉴意义。 相似文献
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本文对公交出行单元的划分、公交出行单元的联接和公交出行换乘次数小于等于1的充分条件等公交线网设计的基础问题进行了比较系统的讨论,并以棋盘型道路和放射型道路为例,说明了上述充分条件的应用,对当前公交线网改造及后续深化研究具有较好的参考作用。 相似文献