Yuguang Bai

Mar 19, 2024 | mdpi.com | Sheng Zhang |Yuguang Bai |Youwei Zhang |Dan Zhao

1. IntroductionIn recent years, hypersonic vehicles have attracted the attention of researchers for their extremely fast flight speeds, but hypersonic vehicles also face many problems during flight, such as the panel flutter problem. This problem may be more pronounced in the thermal environment generated by hypersonic flights. Panel flutter is a self-excited vibration behavior of the panel structure under the combined effect of aerodynamic, inertial and elastic forces.

Sep 28, 2023 | mdpi.com | Weiji Wang |Wei Qian |Xinyu Ai |Yuguang Bai

3. Parametric Analysis 3.1. Variable Stiffness of Aileron SkinFor the tri-wing aircraft, the flutter characteristics of different parameters were studied by analyzing of various structural parameters. In this subsection, the effect of the aileron stiffness on the flutter characteristics was studied by changing the aileron skin thickness of the tri-wing flight vehicle. The aileron skin thickness was altered by changing the thickness item of PSHELL.

May 6, 2023 | mdpi.com | Xinyu Ai |Yuguang Bai |Wei Qian |Yuhai Li

Abstract:In this study, an experimental investigation is performed on a scaled, all-movable horizontal tail to study the aeroelastic behaviors induced by multiple free-plays. The dynamic response in wind tunnel tests is measured by strain gauges, an accelerometer, and a binocular vision measurement system.