Aeroelastic analysis and flutter control of wings and panels: A review

Abstract

Flutter is a self-excited vibration under the interaction of the inertial force, aerodynamic force, and elastic force of the structure. After the flutter occurs, the aircraft structures will exhibit limit cycle oscillation, which will cause catastrophic accidents or fatigue damage to the structures. Therefore, it is of great theoretical and practical significance to study the aeroelastic characteristics and flutter control for improving the aeroelastic stability of aircraft structures. This paper reviews the recent advances in aeroelastic analysis and flutter control of wings and panel structures. The mechanism of aeroelastic flutter of wings and panels is presented. The research methods of aeroelastic flutter for different structures developed in recent years are briefly summarized. Various control strategies including the linear and nonlinear control algorithms as well as the active flutter control results of wings and panels are presented. Finally, the paper ends with conclusions, which highlight challenges of the development in aeroelastic analysis and flutter control, and provide a brief outlook on the future investigations. This study aims to present a comprehensive understanding of aeroelastic analysis and flutter control. It can also provide guidance on the design of new wings and panel structures for improving their aeroelastic stability.

Design and dynamic performance research of MR hydro-pneumatic spring based on multi-physics coupling model

“…From Equation (3) and Equation ( 16), the mathematical expression of dynamic viscosity of MR fluid is shown in Equation (17).…”

“…According to Equation ( 14), Equation (17) and Equation ( 18), the internal flow field analysis model of the MR hydro-pneumatic spring damping structure can be obtained, as shown in Equation (19).…”

“…So it is necessary to analyze the dynamic performance of multiple physical fields coupling during structural design to ensure that the structural design is reasonable and the performance meets the design requirements. At present, the multi-physical field analysis methods include numerical method and finite element software [17,18]. The finite element software does not need engineers to deduce the multi-physical field coupling equation of the system, and the solution process is simple.…”

A novel quasi-zero-stiffness isolation platform via tunable positive and negative stiffness compensation mechanism

“…To meet different vibration reduction requirements, various vibration control strategies such as passive control [11], semi-active control [12] and active control approaches [13,14] are thus designed and employed in various engineering applications. For the semi-active and active control strategies, large control forces and expected vibration control performance may be conveniently achieved.…”

Passive flutter suppression with rotary nonlinear energy sink

“…Several flutter control approaches have been proposed over the years, from passive to active alternatives (Livne, 2018;Chai et al, 2021). Nonlinear Energy Sinks (NES) for flutter control are promising due to their capacity for vibration suppression over a high excitation range for high amplitudes.…”