Pomiar odkształceń kół zębatych przy zastosowaniu interferometrii holograficznej

Przedstawiono pomiar przemieszczeń i naprężeń kół zębatych metodą interferometrii holograficznej. Przedmiotem badań było koło zębate. W pomiarach zastosowano jedną z metod holografii optycznej zwanej metodą podwójnej ekspozycji. W wyniku interferencji fali przedmiotowej i fali odniesienia na materiale światłoczułym otrzymano obraz prążków interferencyjnych na podstawie których wyznaczono przemieszczenia i naprężenia.

The estimation of displacements and stresses of gear wheels with use of holographic interferometry is presented . A gear wheel was an object of investigations. The double exposure method of optic holography was used for measurements. As a result of the interference of the reference and main wave on a light sensitive material, an image of interferential striae was obtained. On the basis of this image, displacements and stresses of the studied object could be determined. The gear wheel tested is shown in Fig. 1, whereas the scheme of the test stand is presented in Fig. 2. Fig. 3 shows the load of the gear wheel. The standard beam is depicted in Fig. 4. Based on the interferometry striae shown in Fig.5, the displacements and stresses were determined. The loads at the stop of the tooth and at the pitch diameter are given in Tabs. 1 and 2. The stresses with the load at the stop are shown in Fig. 6. The stresses with the load on the pitch diameter are shown in Fig. 7. Based on the results given in Tabs.1 and 2, the displacements and stresses of the studied object were determined. In this work the holographic method and the method of finite elements were used.