Author(s):
1. Darko Knežević, Faculty of Mechanical Engineering, Republic of Srpska, Bosnia and Herzegovina
2. Sasa Lalos, Republic of Srpska, Bosnia and Herzegovina
3. Mitar Jocanović, Fakultet tehničkih nauka Univerziteta u Novom Sadu, Serbia
4. Velibor Karanović, Faculty of Technical Science, Kosovska Mitrovica, Serbia

Abstract:
The bulk modulus is the physical characteristics of the fluid, which mainly affects on the dynamic characteristics of the hydraulic system.The value of bulk modulus depends on the state of fluid (pressure and temperature) and thermodynamic change of state (isothermal or adiabatic). In the most commonly used hydraulic fluid - mineral hydraulic oil - a significant impact on changing the bulk modulus has the presence of undissolved air in the oil. This paper is analyzed the effect of bulk modulus on the elastic properties of the hydraulic fluid and the dynamic behavior of the hydraulic system.

Key words:
bulk modulus of fluid,pressure,temperature,stiffness of a hydraulic spring

Date of abstract submission:
08.03.2015.

Conference:
12th International conference on accomplishments in Electrical and Mechanical Engineering and Information Technology (DEMI 2015)

Final paper