This work explores the response of a cantilever plate attached to a cylinder in a wind tunnel under an impact excitation. A detailed computer-aided design (CAD) model and the finite element analysis (FEA) modal simulation of the experimental setup are introduced. Two experimental techniques are thoroughly discussed: an accelerometer-based experimental modal analysis (EMA) method, and a non-contact, full-field, high-speed digital image correlation (DIC)-based operational deflection shape (ODS) analysis method. The experimental and FEA results of the first seven natural frequencies, mode shapes, and ODSs of the cantilever plate are presented and compared. The percent differences between the EMA and FEA natural frequency results are less than 4.8%, and the modal assurance criterion (MAC) values between the EMA and FEA mode shapes are at least 0.845. The percent differences between the ODS analysis and FEA natural frequency results are less than 3.4%, while the MAC values between the ODS analysis ODSs and FEA mode shapes are at least 0.728. The percent differences between the EMA and ODS analysis natural frequency results are less than 3.5%, and the MAC values between the EMA mode shapes and ODS analysis ODSs are at least 0.505. There are two sets of two different mode shapes and ODSs with relatively high correlation. One set is a set of two closely spaced modes and ODSs approximately 20 Hz apart with obvious similarities in shape. The other set is a set of two modes and ODSs approximately 100 Hz apart that share less obvious similarities in shape.

这项工作探讨了风洞中连接到圆柱体的悬臂板在冲击激励下的响应。介绍了实验装置的详细计算机辅助设计（CAD）模型和有限元分析（FEA）模态模拟。深入讨论了两种实验技术：基于加速度计的实验模态分析（EMA）方法，以及基于非接触、全场、高速数字图像相关（DIC）的操作偏转形状（ODS）分析方法。给出并比较了悬臂板前七个固有频率、振型和 ODS 的实验和有限元分析结果。EMA 和 FEA 固有频率结果之间的百分比差异小于 4.8%，并且 EMA 和 FEA 振型之间的模态置信度 (MAC) 值至少为 0.845。ODS 分析和 FEA 固有频率结果之间的百分比差异小于 3.4%，而 ODS 分析 ODS 和 FEA 振型之间的 MAC 值至少为 0.728。EMA 和 ODS 分析固有频率结果之间的百分比差异小于 3.5%，并且 EMA 振型和 ODS 分析 ODS 之间的 MAC 值至少为 0.505。有两组具有相对较高相关性的两种不同模态振型和 ODS。一组是两个间隔很近的模式和 ODS 的集合，它们相距约 20 Hz，形状上有明显的相似性。另一组是一组相距约 100 Hz 的两种模态和 ODS，它们在形状上的相似性不太明显。