用半解析环形板单元解旋转圆环板的动频问题

Frequency with Centrifugal Stresses of Rotating Disc Using Semi-Analytic Finite Elements

使用半解析环形板单元求解零部件转动时的固有频率 (零部件转动时的固有频率称为动频 ) ,推导出离心应力使单元增加的附加刚度矩阵 ,给出动频的求解过程 ,计算的结果被实验证明·这种单元适用于研究金属切割锯片、盘形锥齿轮等旋转零部件的动力学问题·

The semi analytic annular elements was applied to the vibration analysis of thin rotating discs. Additional element stiffness matrices caused by centrifugal stresses were derived. The accuracy of the method was demonstrated by numerical comparison with experimental data. This method makes the response of the wave vibration for rotating discs (such as bevel gear, saw) easy to be calculated.