圆板受均匀分布的矩形脉冲载荷作用。
The plate is subjected to a uniformly distributed rectangular load pulse and Simply-supported along its edge.
将此方法应用于复合材料加筋结构的冲击载荷识别，加筋结构等效为材料性质不均匀分布的层板结构，采用假设模态法建立正向冲击响应模型。
The stiffened composite panel is modeled as an equivalent laminate with varying properties and the forward impact response is obtained using an assumed mode approach.
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