Real-time Rotorcraft Damage Detection and Control (R2D2C) Navy SBIR FY2011.2 Sol No.: Navy SBIR FY2011.2 Topic No.: N112-118 Topic Title: Real-time Rotorcraft Damage Detection and Control (R2D2C) Proposal No.: N112-118-1069 Firm: Continuum Dynamics, Inc. 34 Lexington Avenue Ewing, New Jersey 08618-2302 Contact: Robert McKillip Phone: (609) 538-0444 Web Site: www.continuum-dynamics.com Abstract: Current technology health and usage monitoring system (HUMS) equipment are very aircraft-specific, as they are based on data-driven methodologies that require significant flight test data to define sensitivities and measurement norms. The proposed approach incorporates an embedded aeromechanical rotor model within its monitoring function that greatly expands both the scope and the range of possible flight parameters to be monitored as part of a next-generation HUMS system. The added information may be included within the flight control system, via active inceptors at the pilot controls, to help mitigate damage in rotor system components detected in real-time during flight. These added features are possible through a combination of four key CDI technologies demonstrated in prior work: (1) the capability to operate the aeromechanical model in real-time; (2) a novel approach for rotor system sensing using accelerometer sensors; (3) a patented fault-detection methodology that has applications to generic rotor system response; and (4) an innovative approach for active inceptor force/response control. The resulting system should have wide applicability to both civil and military rotorcraft as well as future VTOL configurations. Benefits: HUMS technologies continue to grow in applications for both civil and military rotorcraft, as operators appreciate the savings in both component part costs and manhour labor charges associated with their use. The proposed system, due to its physical model-based formulation, is poised to have a wide applicability across rotorcraft types, making it an attractive commercial option for helicopter operator and military maintainer. The addition of providing a control method for mitigating detected damage in real-time would also support enhanced safety through the extension of component lifetimes and provide a valuable "fly home" functionality in extreme circumstances. Return