Design and Drop Test of Aircraft Landing Gear’s Shock Absorber Based on Magnetorheological Damper

Abstract:

The structure of a shock absorber based on magnetorheological (MR) damper with a metering pin is proposed, and structure of the magnetic circuit of MR damper is optimized. By drop tests, the damping characteristics of the shock absorber and damping effect are tested. The experimental results show that the shock absorber has the characteristic of a wide damping force adjustment range and lower energy dissipation. The maximum vertical load and shock absorber piston displacement can be changed at same drop height by changing the current. It has also been proved that shock absorber based on MR damper is better than conventional oleo-pneumatic shock absorber on adjustment of damping force.

• Periodical: Applied Mechanics and Materials (Volume 665)
• Pages: 601-606
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.665.601
• Online since: October 2014
• Authors: Xiao Chuan Liu, Shi Xing Zhu, Yong Gang Yang*
• Keywords: Damping Characteristics, Drop Test, Magnetic Circuit, Magnetorheological (MR) Damper, Metering Pin

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