Abstract
The paper presents a test rig designed for studying contact stiffness of flat machined surfaces. The cast-iron samples employed had rated surfaces A= 56.5 cm 2 . Defined were the relationships of comparative contact displacement versus surfaces pressures under static and dynamic loads. Basing upon the data obtained, determined was the effect of mean surfaces pressures also amplitudes and frequency of load, upon stiffness as well as upon vibration energy dispersal. The outcome of the experimental study served in defining dynamic contact stiffness values equivalent for Kelvin-Voigt model also indefining comparative factors of vibration energy dissipation.
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