The virtual tuning of an automatic shock absorber

Abstract

In automotive shock absorber development, tuning is a very important way to obtain the appropriate performance. Based on numerical simulation method and the MSC.ADAMS software package, a virtual tuning method has been developed for tuning the shock absorber inner valve set parameters to meet the damping force requirement. The first step is to build a detailed model of an automotive shock absorber using MSC.ADAMS/Hydraulics, while the model has been validated using test data and the accuracy is above 90 per cent. Then the validated model can be used for virtual tuning, in which the parameters can be changed and optimized so as to meet the design requirement and to obtain better performance. The shock absorber model can also be integrated into a full vehicle dynamics model, for some full vehicle level tuning. Based on the virtual tuning result, a physical tuning process is performed, which can be more effective and efficient.

Keywords

automotive shock absorber virtual tuning numerical simulation MSC.ADAMS

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References

Gillespie

T. D.

, Fundamentals of vehicle dynamics (Warrendale, PA: SAE 1992).

Duym

Stiens

Reybrouck

, Evaluation of shock absorber models Veh. Syst. Dyn. 27 (1997): 109–127.

Subramanian

Surampudi

Thomson

K. R.

, ‘Development of a nonlinear shock absorber model for low-frequency NVH applications’ (2003): SAE paper 2003-01-0860.

Besinger

F. H.

Cebon

Cole

D. J.

, Damper models for heavy vehicle ride dynamics Veh. Syst. Dyn. 24 (1995): 35–64.

Duym

Schoukens

Guillaume

, ‘A local restoring force surface method’ (In Proceedings of the 13th International Modal Analysis Conference, Nashville, TN, 1995, pp. 1392–1399.).

Fash

, ‘Modeling of shock absorber behaviour using artificial neural networks’ (1994): SAE paper 940248.

Duym

, Simulation tools, modeling and identification, for an automotive shock absorber in the context of vehicle dynamics Veh. Syst. Dyn. 33 (2000): 261–285.

Herr

Mallin

Lane

Roth

, ‘A shock absorber model using CFD analysis and Easy5’ (1999): SAE paper 1999-01-1322.

Weiqun

R. E. N.

Huang

Zhang

, ‘Numerical simulation for an automotive shock absorber and its integration into vehicle virtual prototype’ (In Proceedings of the Asian Simulation Conference on Systems modeling and simulation: Theory and applications, Japan, 2006, pp. 188–192 (Springer).)