Abstract:
A part (120) may be inspected for defects by using to both resonant ultrasonic spectroscopy (RUS) and surface vibration analysis by laser vibrometry. Various protocols (230; 240; 250; 280; 260) are disclosed as to how the results of one or more of these inspections may be used to evaluate the part (120). Particularly, modes found in resonant ultrasonic spectroscopy can be identified using the surface vibration data.
Abstract:
A part (120) may be subjected to both a resonance inspection and a surface vibration inspection. Various protocols (230; 240; 250; 280; 260) are disclosed as to how the results of one or more of these inspections may be used to evaluate the part (120).
Abstract:
Various embodiments relating to resonance inspections and in-service parts are disclosed. One protocol (150) includes conducting a resonance inspection of an in-service part (152). The frequency response of the in-service part may be compared with a resonance standard (154) for purposes of determining whether or not the in-service part is changing abnormally (156). An in-service part that is identified as changing abnormally may be characterized as being "rejected" (160). An in-service part that is no identified as changing abnormally may be characterized as being "accepted" (158).