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Even when all the details are provided, the design of wind turbines is a big challenge. The detailed knowledge of the deformation of vital wind turbine components caused by a wind with extreme operating gusts and other type of winds can be obtained only by performing measurements on the wind turbine. The vital component of the wind turbine is axle pin. This article presents the results of the measured changes in wind speed at the height at which strains were measured. The measured strains are used for calculating the stress. It is also shown that on the basis of the calculations on the wind model obtained with the GH Bladed software, the input data are obtained for the SolidWorks software, by which stress on the axle pin can be calculated. The final confirmation of the proper approach and the calculation is achieved by comparison between the calculated and the measured strains on the axle pin during exploitation of a wind turbine of nominal power output of 1 MW.

Vsebina diplomske naloge opisuje konstrukcijo vetrnih elektrarn. Podrobna obravnava se nanaša na os vetrne elektrarne z direktnim pogonom, obremenitve na os, ki so posledica delovanja vetra, in lastnosti materiala osi. Cilj naloge je kontrola osi na ekstremne obremenitve in življenjsko dobo ter določitev primerjalne obremenitve, ki jo simuliramo pri izvajanju materialnega preizkusa. Pri reševanju problema upoštevamo standarde s tehničnega področja. The thesis summons the wind turbine construction. Detailed analysis refers to the wind power axle pin with direct drive, load on the axle pin which are caused by the effect of wind, and the properties of the material. My main goal was to present the control of axle pin regarding to extreme loads and life-time, as well as to determine the comparative burden performed by the implementation of simulated test material. In solving the problem standards in the technical area have been considered.