BENDING OSCILLATIONS ANALYSIS OF KINEMATIC EXCITATED PROPSHAFT

In vehicle propulsion systems, one of the major sources of driveshafts transverse oscillations excitation is kinematic excitation of the edge of a shaft due to the spatial oscillations of a drive unit. The paper presents a method for calculating the dynamic deformation of the propeller shaft due to spatial oscillations of the drive unit. For the calculation, the transfer-matrix method is used. The excitation is implemented in the calculation using the boundary conditions. It´s calculated course deflection and other state vector elements (slope of the deflection line, bending torque, shear force) along the length of the shaft, the angular velocity in the area above and bellow the resonance). The method has been tuned and verified on a real variant of the vehicle and it is in good agreement with calculations modal and spectral properties of the propshaft.