Optimized Parameter Combinations of Hydraulic Damper Modules

R. Sonnenburg

ZF Friedrichshafen AG, Schweinfurt, German.

DOI: 10.4236/jtts.2014.43025                

Abstract

This paper is devoted to the problem of finding optimized parameter combinations of automotive damper modules. Different cost functions using the amplitude spectrum of the excitation and the frequency response function of the car model will be investigated and it is shown that for three different arbitrary road excitations there exists a parameter combination of top mount stiffness, piston rod mass and damping constant that provides an optimum for the dynamic wheel load fluctuation. The achieved advantage of the optimized damper module regarding the dynamic wheel load fluctuation compared to a simple damper in a two mass vibration system can reach up to 20 percent.

Keywords

Viscous Damping, Shock Absorber, Top Mount, Ride Comfort, Ride Safety, Vehicle Dynamic, Parameter Optimization

Conflicts of Interest

The authors declare no conflicts of interest.

References

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