| 摘要 |
<p>A rig (20) for studying a component (22) has a component (36) support for mounting the component (22). A speaker (30) applies sound energy to airfoils (24; 26) in the component (22). A vibrometer (38) studies the effect of the applied sound on the airfoils (24; 26). At least two of the vibrometer (38), the component support (36), and the speaker (30) are rotatable relative to each other. In a separate feature, a vibrometer (38) for studying the effect of sound energy on airfoils (24; 26) in a component (22) is provided with a vision system (40). The vision system (40) is operable to identify the exact location at which the laser is studying the effect on the airfoil (24; 26). Methods are also disclosed.
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