Analysis of a Semi-Levered Suspension Landing Gear With Some Parametric Study

Author:

Jayarami Reddy P.1,Nagaraj V. T.1,Ramamurti V.2

Affiliation:

1. Helicopter Design Bureau, Hindustan Aeronautics Limited, Bangalore, India

2. Department of Applied Mechanics, Indian Institute of Technology, Madras, India

Abstract

A set of nonlinear differential equations describing the response of a semilevered suspension type of landing gear with a single stage oleo-pneumatic shock strut is derived. This includes the kinematics of the articulation of the gear, oil compressibility effect, wheel spin-up as a function of slip ratio, and the hydraulic, pneumatic, and friction forces of the shock strut. A parametric study on a gear of a helicopter has been conducted and the effect of variations in the main orifice diameter, coefficient of discharge of main orifice, initial air volume and pressure, polytropic exponent for air compression process, coefficients of friction at lower and upper bearings and the horizontal velocity of the aircraft during landing on the behavior of the landing gear has been studied.

Publisher

ASME International

Subject

Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Friction analysis of aircraft landing gears due to landing impact;Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology;2021-05-28

2. Dynamics of Articulated Landing Gear in Tail-Down Landing Condition;Lecture Notes in Mechanical Engineering;2018-08-29

3. Non-linear vibration analysis of oleo pneumatic landing gear at touchdown impact;Mathematical Models in Engineering;2018-06-30

4. Vibration Control of a Landing Gear System Featuring Electrorheological/Magnetorheological Fluids;Journal of Aircraft;2003-05

5. Non-homogeneous track-induced response of vehicles with non-linear suspension during variable velocity runs;Journal of Sound and Vibration;1990-11

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