Showing 501 - 520 results of 2,815 for search '"helicopters"', query time: 0.10s Refine Results
  1. 501
  2. 502
  3. 503
  4. 504
  5. 505
  6. 506
  7. 507
  8. 508
  9. 509

    Experimental and numerical simulation of the wall-pressure fluctuation on the isolated helicopter fuselage by Batrakov Andrei

    Published 2022-01-01
    “…The object of investigation was an isolated helicopter fuselage. Investigation was carried out by experimental and numerical methods. …”
    Get full text
    Article
  10. 510

    Perceived discomfort for typical helicopter vertical sine vibrations for seated participants by Laurianne Delcor, Etienne Parizet, Julie Ganivet-Ouzeneau, Julien Caillet

    Published 2021-09-01
    “…Vibrations contribute to helicopter’s ride comfort. This study aimed to determine the relationship between main rotor vertical excitations and discomfort. …”
    Get full text
    Article
  11. 511

    Helicopter Safe Landing Trajectory after Main Rotor Actuator Failures by Yunjie Wang, Chen Jiang, Yuwen Zhang, Haowen Wang

    Published 2020-04-01
    Subjects: “…helicopter actuator failure…”
    Get full text
    Article
  12. 512
  13. 513

    Study of the Vibration Characteristics of SA 330 Helicopter Planetary Main Gearbox by Adebayo A. Ogundare, Sunday J. Ojolo, Adekunle Adelaja, David Mba, Linghao Zhou, Xiaochuan Li

    Published 2023-10-01
    “…The planetary gear sets find application in the final stages of the helicopter transmission system. Unlike the single axis gear, the planetary gears have complex structural arrangement and unique operational characteristics which makes diagnosis of incipient fault much more challenging with planetary gears compared to the single axis gear. …”
    Get full text
    Article
  14. 514

    Study on the Dynamics Virtual Simulation of the Transmission System of a Type Helicopter by Jiang Lingli, Hua Dengrong, Li Xuejun, Wang Ping

    Published 2016-01-01
    Subjects: “…Helicopter;Transmission system;Virtual simulation;Dynamics characteristic…”
    Get full text
    Article
  15. 515

    VIBROACOUSTIC DYNAMICS SIMULATION UNDER CENTRIFUGAL TREATMENT OF HELICOPTER SPAR PIPES by Yulia Anatolyevna Proskoryakova, Petr Danilovich Motrenko, Sergey Alexandrovich Shamshura

    Published 2018-06-01
    “…The theoretical studies on noise levels under hardening the surface layers of the helicopter spar pipes through the centrifugal processing are resulted. …”
    Get full text
    Article
  16. 516

    VIBROACOUSTIC DYNAMICS SIMULATION UNDER CENTRIFUGAL TREATMENT OF HELICOPTER SPAR PIPES by Yulia Anatolyevna Proskoryakova, Petr Danilovich Motrenko, Sergey Alexandrovich Shamshura

    Published 2013-06-01
    “…The theoretical studies on noise levels under hardening the surface layers of the helicopter spar pipes through the centrifugal processing are resulted. …”
    Get full text
    Article
  17. 517
  18. 518
  19. 519
  20. 520

    AUTONOMOUS UNMANNED HELICOPTER SYSTEM FOR REMOTE SENSING MISSIONS IN UNKNOWN ENVIRONMENTS by T. Merz, S. Chapman

    Published 2012-09-01
    “…This paper presents the design of an autonomous unmanned helicopter system for low-altitude remote sensing. The proposed concepts and methods are generic and not limited to a specific helicopter. …”
    Get full text
    Article