DYNAMIC ANALYSIS OF A DOUBLE-TUBE SHOCK ABSORBER FOR ROBUST DESIGN

In this study, a robust design approach is presented to determine the desired damper force characteristics of a double-tube shock absorber b ased on a dynamic analysis in which design constraints to prevent cavi tation are derived. First, a nonlinear mathematical model of the shock absorber is developed based on fluid mechanics. Then, the design cons traints to prevent cavitation are derived based on a dynamic analysis, and a design methodology of the desired damper force characteristics of a spring-loaded valve is determined. Finally, experimental verifica tions are performed to confirm the mathematical model and the design c onstraints, and computer simulations are performed for three design ca ses to verify the postulated design methodology.