Keywords: air spring, physical parameters, dynamic model, dynamic stiffness, damping ratio, simulation, auxiliary reservoir, orifice, pipe.

An accurate dynamic model of an air spring with connecting pipe was set up using features of aerodynamics, fluid mechanics, engineering thermodynamics, etc. According to the established model, the dynamics characteristics of an air spring were calculated for different physical parameters. By comparison with experimental results, it shows that the simulation results of different physical parameters and experimental results coincide very well for dynamic stiffness and damping ratio; and the optimum diameter selection range of the orifice which must be added to the air spring system is 14mm to16mm; the best volume ratio of the auxiliary and bellows is 3.6; the length of pipe has no clear improvements in dynamics characteristic but the auxiliary reservoir should be installed as close as possible to the bellow if conditions permit; the small- diameter pipe, medium-sized pipe and large-diameter pipe are each subject to damping high-frequency excitation, low-frequency excitation and middle-frequency excitation.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £65 +P&P)