Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Selected problems of diagnosing toothed gears in the aspect of developing hums system

Gębura A., Stokowski M.

Journal of KONES

2018

Vol. 25, No. 4

517--524

A diagnostic FDM-A method, based on the measurement of modulation of constituent frequency of direct current (DC) generator pulsation as well as FAM-C method, established on the measurement of frequency modulation of alternating current (AC) generator, were developed in the Air Force Institute of Technology [3, 9-10]. The essence of their accuracy lies in "natural" synchronizing of sampling with angular speed of the observed kinematic pair – if the dynamic processes of the observed object accelerate, the sampling becomes faster too [9-10]. At the same time, around the "synchronization points", due to the clearance in the power transmission there is a certain natural oscillation between the observed kinematic pair and generator’s rotor − vibrations are created. These vibrations are called jitter [9, 23] and they constitute an additional supplement to this method, because they provide more information on resolution and accuracy. Moreover, the abovementioned method enables to define the level of subassembly abrasive wear and its location in the time of normal operation of the powerplant [9-10]. This method allows also detecting resonances of elements on the basis of observation of shape and relative position of characteristic sets, which i.e. enable to calculate the mechanical quality factor of kinematic pair − it is possible to establish the operation time of kinematic pair until entering the resonance degradation. Other numerous parameters associated with the assembly of power unit rotor were also outlined: rotor skew angle, level of frictional wear of bearing cage − lack of contact of bearing components, bearing assembly ovalisation.

Historia i rozwój Głuchołaskich Zakładów Papierniczych

Stokowski M

Przegląd Papierniczy

2013

R. 69, nr 2

95--98

Historia dzisiejszych Głuchołaskich Zakładów Papierniczych Sp. z o.o. zaczyna się w 1884 r. Wtedy powstała pod prywatnym zarządem Glogner & Methner Zellstoffabrik A.G. (Fabryka Celulozy S.A.).

History of today’s Głuchołazy Paper Mill (Głuchołaskie Zakłady Papiernicze – GZP) dates back to 1884 when the paper mill was established under private management of Glogner & Methner Zellstoffabrik A.G.