Manipulator for military engineering support robot. The paper presents some aspects of the research of a manipulator designed for military engineering support robot. The general requirements have been pointed out. The paper presents hydrostatic scheme and waveforms obtained during measurements on the real object.

Simulation and experimental research of hydraulic drive system of caterpillar transporter. The main area of the paper is the hydrostatic drive system for a caterpillar transporter. The mathematical model as well as simulation model has been elaborated. The results of simulations have been compared with experimental tests. The mathematical model has been verified. On the basis of simulation research, authors proposed modernization of the existing drive system.

Volumetric speed control system of hydraulic motor. The problem of mathematical modelling for speed control of a hydraulic motor in volumetric control system has been analysed. Both non-linear and linear mathematical models of the electrohydraulic system have been presented. Changes in values of identified parameters have been approximated by polynomial functions in open-loop adaptive control.

Modelling of the hydrostatic system. In this paper the comparison between two modelling methods of pressure relief valve has been presented. The resulting dynamic responses of models show some differences; in particular damping of the model based on state-space model is stronger. It should be noted, however, that in both ways of modeling similar values of rate of pressure rising and peak pressure have been obtained.

Satellite pump. In the article construction and results of laboratory research of satellite pump have been described. The tests concern volumetric losses, mechanical losses, pressure losses and level of noise and were conducted with use of oil, water and emulsion HFA-E.