Abstract
The relevance of increasing the efficiency of logging road trains by reducing the transport costs spent on the process of hauling timber is substantiated. The analysis of scientific works of foreign authors has been carried out, which made it possible to identify the most important factors influencing the process of the efficiency of timber hauling by timber road trains. A promising design of a two-chamber coupling device for a timber road train is proposed, which provides an increase in the energy efficiency of the timber hauling process. Based on the developed mathematical model and computer program, a preliminary assessment of the efficiency indicators of the proposed road train coupling device was carried out. It has been established that equipping a logging road train with a recuperative two-chamber coupling de-vice will allow generating a recuperated power of about 7.8 kW when the road train moves along an insufficiently equipped logging road. It was revealed that the optimal value of the diameter of the two-chamber hydraulic cylinder of the coupling device is 90 mm, while achieving the maximum value of the recuperated power and the minimum value of the longitudinal acceleration of the trailer with timber relative to the timber vehicle.
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