【摘要】 本文用三节点环形有限元计算了中心带有弹性安置质量的薄圆板轴对称自由振动的频率,给出了各种边界条件及各种质量比、刚度比的频率参数,并分析了附加弹簧质量对系统固有频率的影响。计算结果与现有文献的结果作了对比,证明本文的方法具有很高的精度,所得频率参数有5位以上的有效数字。更多还原

【Abstract】 The axisymmetric vibration of circular plates with an elastically mounted mass has been calculated by the finite element method,the frequency parameters for various mass ratios and stiffness ratios have been given,and the effect of the mounted mass on the natural frequencies of the system has been analysed.Comparison with the literature has proved that the results obtained by this method are very accurate.更多还原