Abstract
The relevance of developing new devices for accumulation and conversion of compressed air energy in a regenerative hydraulic drive of a timber truck with a semitrailer has been substantiated. The layout of recuperative mechanisms on a timber tractor with a semitrailer and the diagram of a recuperative hydraulic drive with subsystems for accumulating and converting compressed air energy are presented. A simplified diagram of a pneumatic energy-saving system for studying the functioning of the subsystems of accumulation and energy conversion of compressed air is presented. A mathematical model has been developed to evaluate the efficiency of using a pneumatic energy-saving system, which includes the equations of change in the gas state in its elements, solved by the Euler numerical method. A modeling algorithm is described, consisting of seven repeating steps performed in the process of computer simulation. The developed computer program is presented, which allows studying pneumatic energy-saving system. Computer experiments with the most typical set of its design and technological parameters are presented. The time dependences of the volume of the pneumatic cavities under consideration, the amount of substance in them, pressure and air temperature in the pneumatic cavities under consideration are obtained. The influence of the diameter of the pneumatic cylinder on the filling time of the receiver, the number of strokes of the piston and thermal efficiency has been defined
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