ESTIMATION OF RIDE QUALITY OF A PASSENGER CAR WITH NONLINEAR SUSPENSION |
S. J. CHO, Y. S. CHOI |
Sungkyunkwan University |
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ABSTRACT |
The nonlinear characteristics of a suspension is directly related to the ride quality of a passenger car. In this{{br}}study, the nonlinear characteristics of a spring and a damper of a passenger car is analyzed by dynamic experiments using he MTS single-axial testing machine. Also, a mathematical nonlinear dynamic model for the suspension is devised to{{br}}estimate the ride quality using the K factor. And the effect on the variation of the parameters of the suspension is{{br}}examined. The results showed that the dynamic viscosity of the oil in a damper was the parameter that most influeced the{{br}}ride quality of a passenger car for the ride quality of a passenger car. |
Key Words:
Ride quality, Nonlinear suspension system, Billings’ method, Monte carlo method, Damper, K factor, Single-axial testing machine |
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