Analytical Calculation of Stiffness Characteristics of Swing Cylinder Hydro-Pneumatic Suspension

Abstract

Abstract The swing cylinder hydro-pneumatic suspension was mainly composed of balance elbow, rocker arm and oil-gas spring, which could convert the rotary motion of the balance elbow into the linear reciprocating motion of the piston. According to the mechanical transfer relationship, the suspension theoretical modelling research had been carried out, and the analytical relationship between key parameters such as suspension stiffness, leverage ratio and balance elbow swing angle were derived. The change trend of suspension characteristics with displacement was also given through programming, which provided a theoretical method for the design of actuators.