Abrégé

Creation and use of a digital twin instance (DTI) for a physical instance of the part. The DTI may be created by a model inversion process such that model parameters are iterated until a convergence criterion related to a physical resonance inspection result and a digital resonance inspection result is satisfied. The DTI may then be used in relation to part evaluation including through simulated use of the part. The physical instance of the part may be evaluated by way of the DTI or the DTI may be used to generate maintenance schedules specific to the physical instance of the part.

Classes IPC  ?

• G01H 13/00 - Mesure de la fréquence de résonance
• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projets; Planification d’entreprise ou d’organisation; Modélisation d’entreprise ou d’organisation
• G08G 5/00 - Systèmes de commande du trafic aérien

Abrégé

Resonance inspection of parts in which a resonance standard to which a frequency response of the part is compared is at least in part based on a property derived from testing of a witness coupon that is manufactured concurrently with the part. This approach may allow properties of a material and/or manufacturing technique used to produce the part and witness coupon to inform the resonance standard to improve testing. Approaches are described related to both empirically derived resonance standards as well as model-based resonance standards.

Classes IPC  ?

• G01H 13/00 - Mesure de la fréquence de résonance
• G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques
• G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p.ex. avec des objets standard

Abrégé

Various approaches for assessing a part for a defect are disclosed and that are based upon SAW modes. In one embodiment, a part-under-test (120) is excited. One or more SAW modes (206) are identified in the frequency response (240/260) of the part-under-test (120). A SAW mode area (248/266) in the frequency response of the part- under-test (120) is compared with a baseline SAW mode area (238/258) of a baseline frequency response (230/250) (and which may be associated with an acceptable part). This comparison may be used to determine if the part- under-test (120) may be characterized defective in at least some respect.

Classes IPC  ?

• G01B 5/28 - Dispositions pour la mesure caractérisées par l'utilisation de techniques mécaniques pour mesurer la rugosité ou l'irrégularité des surfaces

Abrégé

A system and method for evaluating a part-under-test (120) is disclosed. The part-under-test (120) is excited using at least one drive frequency, as done in resonant ultrasound spectroscopy. A first surface acoustical wave (SAW) mode (206) is identified in the frequency response (200). A separate reference peak (204) for the identified SAW mode (206) is also identified in the frequency response (200). The zone in the frequency response (200) delimited by the reference peak (204 ) and the surface acoustical wave (SAW) mode (206) is defined as a degeneracy assessment zone (208). If an extra peak (210), refered as a degenerate peak, appears in the frequency response (200), the part-under-test (120) may be rejected. Otherwise, the part-under-test (120) may be accepted.

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques

Abrégé

A waveform generator and a signal analyzer are respectively provided in electrical communication with an input transducer and an output transducer capable of conversion between electrical and acoustic signals, and in mechanical communication with the part. A processor coupled with the waveform generator and signal analyzer receives a set of parameters defining a frequency scan from which it determines a number of frequency sweeps to be performed by the waveform generator. Each of the frequency sweeps has a number of frequencies less than a maximum capacity of the waveform generator, and for each frequency sweep, the processor instructs the waveform generator to excite the input transducer and synchronously receiving a response signal with the signal analyzer at multiple frequencies.

Classes IPC  ?

• G01N 29/04 - Analyse de solides

Abrégé

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.

Classes IPC  ?

• G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

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).

Classes IPC  ?

• G01B 3/44 - Calibres à mâchoire ouverte et faces opposées, c. à d. compas à calibrer, où la distance interne entre les faces est fixe, mais peut être réglée à l'avance du type calibre à limitation, c. à d. calibres à tolérances maxima et minima réglables à l'avance pour l'usure et les tolérances