A car is one of the most commonly used means of transportation. It is used for both short and long journeys all around the world. However, not every part of it is completely reliable. The objective of a thesis was to understand, what happens inside an automotive gearbox. The forces acting on the gears were studied and the shaft loading during an operation of the car was investigated. The shaft is subjected to bending and torsional stresses. Bending stresses are caused by forces on gear pairs, while torsional stresses are caused by the rotational torque on the driveshaft, which comes from the engine and powers the entire automotive gearbox. Using the example of the driveshaft in the automotive gearbox, critical components were identified and critical locations on the driveshaft were selected. The analysis was performed using the finite element method (FEM) and according to the DIN 743 standard, which describes the conditions at critical points on the driveshaft.
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