Research on the Distribution of Axial Excitation of Positive Pressure Ventilators in the Aspect of Stability Safety of the Load-Bearing Frame
1
Institute of Machine Design, Faculty of Mechanical Engineering, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland
2
Scientific and Research Centre for Fire Protection, National Research Institute, Nadwiślańska 213, 05-420 Józefów, Poland
3
Institute of Architecture and Spatial Planning, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland
4
Technical University of Sofia, bul. "Kliment Ohridski" 8, 1756 Studentski Kompleks, Sofia, Bulgaria
5
Angel Kanchev University of Rousse, ul. "Studentska" 8, 7017 Studentski grad, Ruse, Bulgaria
Corresponding author
Bartosz Wieczorek
Institute of Machine Design, Faculty of Mechanical Engineering, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland
Institute of Machine Design, Faculty of Mechanical Engineering, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland
Adv. Sci. Technol. Res. J. 2024; 18(1):142-154
KEYWORDS
occupational safetyrescue operationpositive pressure ventilatorsmachine vibrationvibration of internal combustion enginevibration of electric drive
TOPICS
ABSTRACT
Positive pressure ventilators are exposed to self-shifting during their operation. The aim of the article was to perform research analysing dynamic excitations resulting from vibrations caused by the operation of the drive system. The tests included four different fans, including one with an electric drive. The tests carried out made it possible to determine the effective RMS R value of vibrations, which is a maximum of 0.970 G, and the direction of the excitation relative to the vertical and horizontal axes. In addition, the values of vibration amplitudes on individual axes of the adopted reference system were determined. In this case, the highest values were measured on the vertical axes for combustion-powered ventilators (vibration value from 20 to 35 m/s2 ) and in the axis along the fan rotor for electric-powered ventilators (vibration value from 1.1 m/s2).
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