This paper discusses a test stand and methods used to determine static-isobaric, isotonic and isometric-characteristics of two pneumatic muscles: a Festo Fluidic Muscle MAS and a Shadow Air Muscle. The data obtained from the experiments were applied to analytically determine the equations of static characteristics of the pneumatic muscles. The equations were then employed to obtain simulated static characteristics. The experimental characteristics were compared with the simulated ones. 629176M AC0010.

Abstract. This thesis presents the outcome of experimental research of the impact of changes in cutting speed and volume of material processed during a face milling process on the temperature of the processed object made of copper of M1Ez4 class. Measurement of the temperature of the processed object was conducted in six points with K-type thermocouples. The theoretical amount of released heat per unit of time for particular parameters of machining was also calculated.

Abstract. Pneumatic directional valves are used in most industrial pneumatic systems. Most of them are two-stage valves controlled by a pilot valve. Pilot valves are often chosen randomly. Experimental studies in order to determine the flow-rate characteristics and parameters of pilot valves were not conducted. The paper presents experimental research of two piezo pilot valves.

Abstract. The work includes a study on the comparative analysis of two test methods. The first methodnumerical method, consists in determining the flow characteristics with the use of ANSYS CFX. A modeled poppet directional valve 3/2 3D CAD software -SolidWorks was used for this purpose. Based on the solid model that was developed, simulation studies of the air flow through the way valve in the software for computational fluid dynamics Ansys CFX were conducted. The second method -experimental, entailed conducting tests on a specially constructed test stand. The comparison of the test results obtained on the basis of both methods made it possible to determine the cross-correlation. High compatibility of the results confirms the usefulness of the numerical procedures. Thus, they might serve to determine the flow characteristics of directional valves as an alternative to a costly and time-consuming test stand.

No abstract