Closed loop approach to structural health monitoring for critical rotorcraft components
نویسندگان
چکیده
Rotorcraft design is challenging with respect to fatigue considering the wide range of loads to which it is subjected. There has been a continuous requirement from the helicopter community in terms of increased flight safety, increased life of components and decreased maintenance and inspection frequency. Structural Health Monitoring (SHM) has definitely catered to this requirement by introducing Condition Based Maintenance, thereby reducing the cost and time involved in maintenance activities. However, there is still an existing need for health monitoring improvements that can provide feedback in order to change the loads appropriately. The aim of the present work is to develop estimation of component level dynamic loads, stresses and strains thereby providing an opportunity for monitoring component damage variables which can then be fed to the Load Alleviation Control scheme to adjust the loads and ensure extended life and flight safety.
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