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1 – 2 of 2Hongtuo Liu, Fangwei Xie, Kai Zhang, Xinxing Zhang, Jin Zhang, Cuntang Wang and Hao Li
The shock absorber is an important component of vehicle suspension that attenuates the vehicle vibration. Its running state directly affects the performance of the vehicle…
Abstract
Purpose
The shock absorber is an important component of vehicle suspension that attenuates the vehicle vibration. Its running state directly affects the performance of the vehicle suspension. The purpose of this paper is to quantitatively study the relationship between damping characteristics and air chamber and oil properties in single-tube pneumatic shock absorber.
Design/methodology/approach
Combined with the principle of fluid dynamics and hydraulic transmission technology, the rebound stroke and compression stroke mathematical models, and damping characteristics simulation model are established to investigate the effect of the air chamber and oil property on damping characteristics.
Findings
Research results show that the initial pressure of the air chamber is the key parameter which influences the damping characteristics of the shock absorber. The change of the initial pressure has more impact on damping force, and less impact on the speed characteristic; the initial volume of the air chamber almost has no effect on the damping characteristics. The density and viscosity of the oil have certain influence on the damping characteristics. Therefore, selecting suitable damping oil is very important.
Originality/value
Using Matlab/Simulink software to build simulation models, its results are very accurate. The conclusions can provide a theoretical reference for the structure design of a single-tube pneumatic shock absorber.
Details
Keywords
SINCE the original British patent for telescopic oleo‐pneumatic shock absorbers for aircraft landing gear was drawn up in 1915 by Vickers engineer T. S. Duncan — with his…
Abstract
SINCE the original British patent for telescopic oleo‐pneumatic shock absorbers for aircraft landing gear was drawn up in 1915 by Vickers engineer T. S. Duncan — with his invention of the positive recoil damping principle — Weybridge has been in the forefront of landing gear development on all types of aircraft for over half a century. Today, as a member company of British Aircraft Corporation, the Weybridge resources in this field are unique to a prime aircraft manufacturer. The landing gear units for the VC10 and B.A.C. One‐Eleven airliner families and the supporting design, production and testing facilities at Weybridge are among the most advanced in the world.