SHOCK ABSORBER TEST SET-UP
Keywords:Shock absorber, COSMOS motion software, Structural Steel, Pedastal Bearing, Load cell.
Shock absorber is one of important component in a vehicle suspension system. The shock control spring
motion by damping energy from the spring. This paper was focused on the dynamic characteristics of an automotive
shock absorber. The design of interchangeable shock absorber test rig was developed and fabricated for the dynamics
measurement system. This test setup integrated with the computer systems to record the signal. An experiment was
conducted to identify the stiffness and damping parameter for 850 cc and 1600 cc shock absorber. Simulation study was
performed utilizing the COSMOS Motion software. It can be seen from the results that there is a good agreement
between the experimental and simulated results in terms of stiffness and damping value except few discrepancy. The
acquired results show that the range of discrepancy within 10%. The good range of stiffness of the passenger vehicle
shock absorber is 20 N/mm to 60 N/mm while the damping of passenger vehicle shock absorber is 1 Ns/mm to 6 Ns/mm.