In the paper the experimental setup with the corresponding experimental algorithm for determination of dynamic or static stability limit of a given aeroelastic system is presented. Based on the multiparameter model of an elastically supported thin airfoil the theoretical stability limit is obtained and compared to the experimental results. The comparison should show that the experimental setup can be used for the aeroelastic phenomena research purposes.
B.06 Other
COBISS.SI-ID: 11998235A complex valid numerical model of sensorised glow plug was developed. It enables to numerically predict the dynamic behaviour of prototypes and thus to optimise the shape in order to increase fatigue life of a product
B.06 Other
COBISS.SI-ID: 11828507In contrast to the commonly used acceleration measurement, this research discusses the use of force measurements to identify bearing faults. A force sensor is fixed between the rigid surroundings and the bearing to measure all of the reactive forces due to the vibration excitation. Using a force measurement, systematically prepared samples with the five typical faults that can occur during the assembly process (axial, radial, bending moment, contamination and shield defect) were investigated. The samples were prepared with low, medium and high fault ratings. The force measurement, with its relatively simple signal processing based on an envelope detection, was shown to be successful in correctly identifying both the fault rating and the fault type. The presented approach was successfully applied to high-series assembly production and is relatively easy to apply to similar applications.
B.06 Other
COBISS.SI-ID: 11807771