The fusion of FISV and FFV offers a new tool for application in fundamental aeronautic studies related to ground testing, wind tunnel tests, and flight experiments. The data provided by the DDIS could provide new insights related to unsteady aero-elastic phenomena, flutter boundary prediction, computational model refinement and thus rapid evaluation of new design concepts. These empirical data are required to aid development of more accurate models for transonic aero-elasticity and flutter clearance prediction. In addition to fundamental aeronautics, the DDIS offers a diagnostic tool which would aid identification of vehicle specific aero-elastic instabilities by elucidating the spatial dynamics under operational conditions, highlighting the flow of energy between vehicle sub-structures. The computation of dynamic structural intensity (DSI) supported by the DDIS architecture permits identification of transient sources and sinks by mapping the structural energy flow in real-time.
Many wind tunnel test facilities as well as all branches of military aerospace organizations concerned with aircraft flight stability, stores deployment, and fleet airworthiness are expected to benefit from the DDIS dual functionality described in the current proposal. However, the separate functional components of the proposed system could be successfully developed as stand-alone instruments for unsteady flow-field visualization or non-linear and transient full-field vibration measurement. By adding a parallel imaging modality to laser Doppler vibrometry (LDV), the core DDIS is anticipated to find applications across a broad spectrum of industries where existing commercial LDV's are currently employed. Numerous industries (automotive, aerospace, medical, computer electronics and industrial plants) employ LDV for modal vibration analyses. In addition to modal analysis, the DDIS would target the market represented by non-destructive testing in the marine, aviation and space industries and, in particular, the non-destructive inspection in manufacture and maintenance of deployed military systems.
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