The numerical and experimental vibrations analysis of wls series fans designed for the use in underground mines

Abstract

The modal analysis of technical objects undergoing variable load intensity is an important task, thanks to which the safety in terms of resonance vibration phenomenon can be measured. This paper concerns the aspects of testing the new WLS series fans, used for local mine ventilation, which provide safer underground conditions resulting in more efficient work. The use of numerical methods in the calculations of natural frequencies and the comparison of numerical and experimental results calculated with the use of operational modal analysis have been emphasized.