Research of Internal Dynamics of Hydro-Pneumatic Devices

Internal dynamics of hydro-pneumatic devices is an important area for research, with thermal loading being of particular relevance. Currently used methods of mathematical modeling based on the finite element method require individual selection options for each device. In this paper, the authors use thermal loading model based on the Schmidt finite difference method. It can be used to study hydro-pneumatic devices of various designs with minimal preliminary time required. The results of the study of internal dynamics of such hydro-pneumatic devices are presented. These include the results of simulation and bench testing of hydro-pneumatic suspensions of a wheeled and a tracked vehicle of the light weight class for thermal loading. The high reliability of the mathematical model developed in the Simulink/Simscape environment is demonstrated.

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