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在苏联出版的结构理认研究论论集的第五期和第六期的里面,教授写了两篇关于拱的振动的文章,第五期写的是拱的正对称振动,第六期写的是拱的反对称振动,他把一个拱分成六根刚性的桿,用弹性铰联在一起,用的方法似乎和结耩静力学里面用的分析拱的力法相同,我认为这个问题也可以把拱兰做刚架用变位法来解的,提出来请大家指教,因为公式比鲛简单的缘故,教授只算了内个双铰拱的自由振动。但是用变位法时,无铰拱和双铰拱的计算工作是差不多的。
In the fifth and sixth periods of the Soviet Union’s structure-recognized research discourse, the professor wrote two articles on the vibration of the arch. In the fifth issue, the positive symmetrical vibration of the arch was written. It is the antisymmetric vibration of the arch. He divided an arch into six rigid rods and used elastic hinges. The method used seems to be the same as that of the analysis arches used in static statics. I think this problem can also be solved. The arched blue is used as a rigid frame to solve the problem with the displacement method, and proposes to invite you to enlighten, because the formula is simpler than the reason, the professor only calculated the free vibration of the double hinged arch. However, when using the displacement method, the computational work for the hingeless arch and the double hinged arch is similar.