Design and Analysis of a Dual Shock Absorber Landing Gear for Commercial Airplane

Abstract

Landing gear is a most important structural unit of an all kind aircraft which carry out the whole body during the take off and land safely on the ground. Many type of landing gear are used depending on what type and size of an aircraft. Generally tri-cycle arrangement are used with one front or nose landing gear unit and two main landing gear units. The major works of all kind shock absorbers is to absorb or dissipate energy. Fora commercial airplane, it decreases the effect of traveling over ground, leading to improved ride quality, and increase in comfort due to reduced amplitude of disturbances. In landing gear most important bouncing process is repeated over and over, with a little less each time, until the up-and-down movement fully stops. In this paper a signal and dual shock absorber landing gear is designed and a 3D model is created using CATIA v5 and analysis is done in ANSYS v12. Comparison is done for two type shock observer (signal and dual) to verify best Shock absorber.