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Analýza parametrov trakčného ústrojenstva ťažobno-dopravných strojov a ich vplyvu na pôdne prostredie =: Analysis of the parameters of the traction system of the harvesting and transport machines and their influence on the soil environment. /
 Marušiak, Milan
This PhD thesis deals with analysis of the forest machines traction device and the ma-chine operation to the soil environment. Within the thesis are solved problems covering transmission of drive force in the traction device, where the traction characteristic for most used types of transmission is developed. Within the scope of machine action on the soil there is elaborated problem of the soil contact pressure determination and the rut depth determination by the first and multiple passage of the machine. Particular attention is paid to dynamic load calculation where the vehicle speed is used as input para-meter. An important part of this work is the verification of the calculation relationships for determination of several parameters (tire contact area, soil contact pressure, rolling resistance, rut depth) with the measured data. The last part of this thesis compares ma-chine mobility calculations according to the WES and MMP method, together with the mobility estimation according to the rolling resistance coefficient and the pulling force. The result of traction analysis is the creation of a computing application in MS Excel which provides basic data on machine mobility in the field.
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