The crack on the engine compartment partition of a helicopter continually occurs, which has affected the flight safety. First, the simplified modeling of engine and local structure detail modeling are studied. Then combined with the flight test data and fracture analysis, the high-cycle failure of the structure under the action of aerodynamic pressure and vibration force is analyzed by using the method of frequency response simulation. The average S-N equation is used to improve the design of the original structure. The fatigue damage resistance of the new structure is obviously improved and has infinite life. A new maintenance platform is also designed for the problem of small engine maintenance space feedback from users. The platform not only increases the maintenance space, ensure the safety of staff, but also reduces the probability of accidental damage to the engine compartment partition.


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    Title :

    Crack Analysis and Improvement of Helicopter Engine Compartment Partition


    Additional title:

    Lect.Notes Mechanical Engineering


    Contributors:
    Yin, Zhongwei (author) / Li, Shifeng (author) / Cao, Jinhua (author) / Lin, Changliang (author) / Zhang, He (author)

    Conference:

    China Aeronautical Science and Technology Conference ; 2023 ; Wuzhen, China September 26, 2023 - September 27, 2023



    Publication date :

    2023-12-20


    Size :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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