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本文提出按轴对称的有限单元法计算周向均匀布置有短肋板的圆筒状结构的振动特性,给出了一个计算实例,并分析了这一实例中非轴对称因素对于计算最低阶轴向振动固有频率的影响。
This paper proposes the calculation of the vibrational characteristics of cylindrical structures with short ribs uniformly distributed in the circumferential direction by means of the axisymmetric finite element method. A calculation example is given and the non-axisymmetric factors in this example are used to calculate the lowest order axis. The effect of natural frequency on vibration.