同时利用等效密度有效地简化模型，为导弹大型有限元模型的模态估计提供了一种简单可行的方法。
Making use of equivalent density the model is simplified effectively, a simple and feasible method is offered for mode estimation of a missile's large-scale finite-element model.
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.
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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