事故分析

The essay has focused on weather 、navaid and traffic separation scheme in entrance of the Chang JiangRiver.

本文将长江口水域有关水文气象、助航标志和船舶交通管理规定等做一总结介绍，并结合二起事故案例分析，探讨船舶在此水域的航行安全管理，以利航经长江口水域船舶的安全。

An analysis is made on cause of the damage incident of quick fuses, controlled silicon and power control panels of the DC driving devices of Chuanwei High Speed Wire Plant due to overvoltage.

分析了因过电压造成川威高线直流传动装置快速熔断器、晶闸管及电源控制板损坏事故的原因，认为直流传动装置过电压保护措施必须完善，不能随意拆除。

The relationship between safe driving and technical condition of automobiles is analyzed in terms of steering system, brake system, wheel, walking mechanism , light signals and the key points for preventing accidents are presented.

本文主要从转向装置、动装置、轮、路机构、光信号等方面分析了安全行驶与汽车技术状况的关系，指出了事故预防的要点。

Vapor cloud explosion is one of the main accident types of flammable gas.

对事故后果进行分析，是安全评价的重要内容。

Based on the FEM,the calculation and analysis were performed for the transient temperature field s and stress fields of the intermediate pressure main steam valve housing under various operating conditions including cold startup,shutdown,strong hot startup,limit hot startup and accidental condition in 200MW unit in power station.

采用有限元方法，计算分析了电站200MW汽轮机中压主汽阀阀壳在冷启、停机、强热启动、极热启动以及事故等工况下的温度场和应力场，得出了阀壳裂纹区各工况下温度场和应力场的变化规律，提出了内壁裂纹区的周向应力是疲劳寿命计算的主要参考量。

Based on the FEM,the calculation and analysis were performed for the transient temperature fields and stress fields of the intermediate pressure main steam valve housing under various operating conditions including cold startup,shutdown,strong hot startup,limit hot startup and accidental condition in 200MW unit in power station.

采用有限元方法，计算分析了电站200MW汽轮机中压主汽阀阀壳在冷启、停机、强热启动、极热启动以及事故等工况下的温度场和应力场，得出了阀壳裂纹区各工况下温度场和应力场的变化规律，提出了内壁裂纹区的周向应力是疲劳寿命计算的主要参考量。

An explosion accident of check valve taking in vacuum pipe line was analyzed.

分析了真空管道止回阀发生的一起爆炸事故，认为其原因是止回阀外密封泄漏，且密封腔无安全装置，提出了相应防范措施消除了隐患。

Based on the investigation of local tube rupture, occurred several times in sidewall tube near front furnace door, the hydrodynamic analysis and calculation have been done to a blowdown system of sidewall header in a DZL6.0-l.25 steam boiler.

从对一台DZL6.0－1.25蒸汽锅炉近前炉门附近两侧炉膛水冷壁管多次发生局部爆管事故的调查出发，对该锅炉侧集箱排污系统存在的设计缺陷进行了流动分析、计算。

Based specialized, generalized and visualized basic geographical information, it collects many information, such as detected video, traffic control signal, traffic peccancy, policemen distributing, traffic target, stopping position and capacity, to general manage and analyze. The primary visualized decision information including traffic flux, bus speed, traffic density, accident of real-time cities main road, are provided to traffic manager so that they respond rapidly, and some of them could be transformed to traffic inducing screen through network.

系统设计目的：建成一个基于网络环境的实时的、可视化的交通管理地理信息系统服务平台，它以专业化的、综合性的、可视化的基础地理信息为基础，综合集成现有系统，将监控视频，交通控制信号、交通违章监控等实时动态信息以及警力分布、交通标志、停车场位置及容量等各种数据采集起来，进行集中管理和分析，为交通管理者提供实时的城市各主要道路的交通流量、车速、交通密度、事故发生情况等可视化初级辅助决策信息，以便交通管理人员做出快速响应，也可将部分信息通过网络主动发布到交通诱导屏。

Finally, the paper ties up engineering practice. AC600 design based accidents such as double ends cool leg lost of coolant accident, double ends hot leg lost of coolant accident and main steam line break accident have been analyzed in the paper.

最后，本文密切结合工程实际，用开发的PCCSAC-3D程序对先进压水堆AC600的设计基准事故进行了计算分析，并对剧烈喷放的破口附近提出了破口喷放缓冲区模型，破口喷放出的流体在缓冲区内迅速得到均匀混合。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。