5 articles in this issue
Mariusz BIEGAJ,Kajetan DZIEDZIECH,Adam MACHETA
A worm gear mechanism, widely used in numerous mechanical applications, is the essential component in energy efficiency considerations. Compared to traditional gearboxes, worm gear is characterized by lower value of efficiency, provided by the manufactur... see more
Dariusz DABROWSKI,Jan ADAMCZYK
In the paper the dynamic model of an one-stage planetary gear was presented. The model was developed on the basis of a multi-body dynamics method. To conduct dynamic simulations the specialized multi-body dynamics software was used. In the study the tests... see more
Tomasz MACHNIEWICZ
From among of the deterministic models for fatigue crack growth predictions suitable for metallic materials a Strip Yield (SY) model can be considered the most general and powerful crack growth prediction tool owing to its applicability to arbitrary varia... see more
Janusz PIECHOWICZ,Pawel PAWLIK
The authors have made an attempt to construct a multi-channel data acquisition system for vibroacoustic signals, collected for analysis of acoustic field distributions in enclosed rooms and determination of surface acoustic impedance values at the wall s... see more
Stanislaw WOLNY,Boguslaw LADECKI
There are numerous hoisting installations operated in Polish mines that are equipped with winding gear incorporating a Koepe pulley reinforced with peripheral ribs, where the symptoms of fatigue cracking are often revealed. Current repairs of those areas ... see more