Applied Sciences, Год журнала: 2024, Номер 14(20), С. 9380 - 9380

Опубликована: Окт. 15, 2024

It is well known that the flutter performance of a section sensitive to changing wind angles attack. Exploring thin plate’s mechanism under different attack excellent, which helps understand inner characteristics and ensures structural safety. This study investigated derivatives plate with an aspect ratio 40 via forced vibration technique. The otherness aerodynamic damping phase lag angles, in understanding mechanism, are analyzed using bimodal-coupled method. shown coupled vertical–torsional dominated modality 0° 3° critical velocity dramatically decreased increasing attributed negative induced by self-excited forces decreasing positive uncoupled forces. Moreover, vertical motion lags behind torsional 7° angle attack, was totally contrary other Major works this reveal weakened plates large provide reference for analysis plates.

Язык: Английский