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Safety Limit Study of the Gravity Center Height for a Loaded Wagon under Cross-Wind

机译：横风下货车的重心高度的安全极限研究

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The application conditions of the safety limit of height of gravity center of loaded wagon in "The railway freight loads and firms regulation" are not described in detail. In this paper, we established the particular three-dimension dynamic model for the container flat car and the container to simulate the dynamic behavior of freight wagon through the curve under cross-wind. We analyzed safety of loaded wagon under different height of gravity center and obtained the safety limit of height of gravity center of loaded wagon under cross-wind. From the analysis of calculation results, we can know that the height of gravity center can reach 2.2 m or higher when the wind speed is lower than 9 grade; when the wind speed is 9 grade, loaded wagon should run with speed limit while the height of gravity center is over 2.2 m; when the wind speed is 10 grade, loaded wagon should run with speed limit while the height of gravity center is over 1.9 m; when the wind grade is 11 or above, loaded wagon should run with speed limit or stop running.
机译：没有详细描述“铁路货运量与行规”中载货车重心高度安全极限的应用条件。在本文中，我们针对集装箱平板车建立了特殊的三维动力学模型，并通过集装箱在侧风条件下通过曲线模拟了货车的动态行为。分析了不同重心高度下的载重货车安全性，得出了侧风作用下载重车重心高度的安全极限。从计算结果分析可以看出，风速低于9级时，重心高度可以达到2.2 m以上。风速为9级时，重心高度超过2.2 m时，载货车应以限速行驶;风速为10级时，重心高度超过1.9 m时，载重货车应以限速行驶;当风力等级为11或更高时，装载的货车应以限速行驶或停止行驶。

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