The topic of this diploma thesis is a mechanical analysis of the machine for unrolling round hay bales. Firstly, an overview of different machines available on market is given. For the proposed design of the machine analysis of the kinematics of unrolling hay bale is presented. Mechanical analysis of the machine components is carried out by the finite element method using the computer program ABAQUS. For this purpose, a simplified geometrical model of the machine is prepared and the machine load during its operation is determined. The machine components dimensioning is based on the analysis of the strain stress state.
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