Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
MAGNETORHEOLOGICAL DAMPERS IN LANDING GEARS: DYNAMIC ANALYSIS FOCUSED ON SHOCK ABSORPTION AND VIBRATION COMFORT
Submission Author:
Felipe Lima de Abreu , SP , Brazil
Co-Authors:
Felipe Lima de Abreu, Murilo Filipus, Douglas Bueno, Rodrigo Borges Santos
Presenter: Felipe Lima de Abreu
doi://10.26678/ABCM.COBEM2023.COB2023-0774
Abstract
This article investigates the use of Magnetorheological (MR) dampers in aircraft landing gear, aiming to improve safety, efficiency and comfort during the landing. MR dampers can adjust the damping force in real time, adapting its behavior to specific needs during this critical phase of the flight. The study considers the Spencer dynamic model, which includes non-linear characteristics, such that the hysteretic effect, and the decrease in the damping force if the velocity approaches zero. The work introduce force decomposition to the actuator into hydraulic, pneumatic and active components. The landing gear system is modeled with two degrees of freedom, taking into account the vertical oscillations. The analysis is conducted by numerical simulations using the fourth-order Runge-Kutta integrator method. The results are evaluated in terms of shock absorption efficiency and vibration comfort. The results obtained demonstrate the potential of the technologies based on MR dampers to improve flight safety and efficiency. Furthermore, these technologies have the potential to make aircraft landings more comfortable for passengers.
Keywords
Mr damper, landing gear, Dynamics Analysis, Vibration Comfort
