【摘要】 从理论上讨论了开孔板的固有频率的计算方法;通过有限元分析计算了开有不同尺寸和形状孔的薄板的三阶固有频率值,得到了其振型图;并分析了开孔对薄板固有频率影响的原因,得到了其固有频率值随孔的尺寸和形状的变化规律。更多还原

【Abstract】 Discussed on the natural frequencies of thin plate with cutout . Got the results of natural frequencies and the maps of model funtion on three or ders. In addition, analyzed the effect of cutout on the plate natural frequencie s, and obtained the variety laws of its natural frequencies along with the shape and size .更多还原