The report describes efforts to monitor and record the in-flight operations of UH-1H and CH-47C helicopters for the subsequent assessment of the fatigue damage to their structures, four types of monitoring were investigated: (1) flight condition monitoring, (2) component-load monitoring, (3) mission-type monitoring, and (4) direct monitoring. After the recording systems and corresponding data processing systems were identified for each monitoring type, each type was tested for its technical acceptability and cost-effectiveness. Study results indicated that the flight condition monitoring is best for the UH-1H and also for the CH-47C provided that the monitoring of gross weight for the latter model becomes technically acceptable.


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    Title :

    A Feasibility Study for Monitoring Systems of Fatigue Damage to Helicopter Components


    Contributors:
    R. B. Johnson (author) / G. L. Martin (author) / M. S. Moran (author)

    Publication date :

    1975


    Size :

    194 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    FATIGUE PROOFING HELICOPTER COMPONENTS

    BREYER, R. F. | SAE Technical Papers | 1954


    Fatigue proofing helicopter components

    Breyer, R.F. | Engineering Index Backfile | 1954


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    Hall, A.D. | Engineering Index Backfile | 1963


    Fatigue Substantiation of Helicopter Components

    Hall, A.D. | Emerald Group Publishing | 1963


    Helicopter Dynamic Components Fatigue Tracking System

    Moon, S. / Hinger, C. / International Committee on Aeronautical Fatigue | British Library Conference Proceedings | 1995