Semi-Active Vibration Control of Landing Gear Using Magneto-Rhelological Dampers 2011-01-2583
Magneto-rhelological(MR) dampers are devices that use rheological fluids to modify the mechanical properties of fluid absorber. The mechanical simplicity, high dynamic range, large force capacity, lower power requirements, robustness and safe manner of operation have made MR dampers attractive devices for semi-active real-time control in civil, aerospace and automotive applications. Landing gear is one of the most essential components of the aircraft, which plays an extreme important role in preventing the airframe from vibration and excessive impact forces, improving passenger comfortable characteristics and increasing aircraft flight safety. In this paper, the semi-active system used in landing gear damping controller design, simulation, and the vibration test-bed are discussed and researched. The MR dampers employed in landing gear system were designed, manufactured and characterized as available semi-active actuators. On the basis of a large number of experimental data, a mathematical model based on the Bouc-Wen hysteresis model was adopted to predict both the force-displacement behavior and the complex nonlinear force-velocity response of the MR dampers. Using the landing gear vibration test-bed, the vibration characteristic of passive absorber was compared with the vibration characteristic of semi-active control. It is indicated that compared with passive control, the MR damper based on semi-active control can obviously restrain the displacement and acceleration response of the structure, and takes an effective performance in MR fluid absorber vibration reduction system.
Citation: Liu, W., Shi, W., and Ya, H., "Semi-Active Vibration Control of Landing Gear Using Magneto-Rhelological Dampers," SAE Int. J. Aerosp. 4(2):958-964, 2011, https://doi.org/10.4271/2011-01-2583. Download Citation
Author(s):
Wei Liu, Wenku Shi, Hao Ya
Affiliated:
Jilin University, China FAW Group Corporation R&D Center
Pages: 7
Event:
Aerospace Technology Conference and Exposition
ISSN:
1946-3855
e-ISSN:
1946-3901
Also in:
SAE International Journal of Aerospace-V120-1, SAE International Journal of Aerospace-V120-1EJ
Related Topics:
Landing gear
Mathematical models
Dampers and shock absorbers
Vibration
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