Zgadzam się
Nasza strona zapisuje niewielkie pliki tekstowe, nazywane ciasteczkami (ang. cookies) na Twoim urządzeniu w celu lepszego dostosowania treści oraz dla celów statystycznych. Możesz wyłączyć możliwość ich zapisu, zmieniając ustawienia Twojej przeglądarki. Korzystanie z naszej strony bez zmiany ustawień oznacza zgodę na przechowywanie cookies w Twoim urządzeniu.
Helicopter pilots operate in a vibratory environment that substantially exceeds that of fixed-wing aircraft, creating stringent demands for the durability and dynamic stability of head-supported equipment. This study presents an experimental investigation of the vibration behaviour of prototype helicopter pilot goggles tested on an electrodynamic exciter over a frequency range exceeding applicable defence standards. The aim was to verify assembly integrity, assess the short-term strength of load-bearing components, identify natural frequencies of the goggle system, and generate reference data for future finite-element model. Acceleration and displacement responses were recorded using accelerometers and processed through custom software to obtain amplitude–frequency characteristics. The results indicate significant amplification of vibration in selected structural regions, eg. 50–250 Hz and 450–500 Hz, corresponding to natural modes of both the holder and the goggles. These findings confirm the sensitivity of the system to vibratory inputs comparable to those in helicopter cockpits
