Renovation of vibration characteristics of miniature ball bearings of precision mechanical systems of aerospace and military equipment

Abstract

The article provides a detailed analysis of existing diagnostic systems and identified ways to improve the quality of assessment of vibroacoustic characteristics during the renovation of miniature and precision rolling bearings of mechanical systems of aerospace and military equipment.

Since modern aerospace precision mechanical systems or high-precision defense devices, containing moving and rotating parts, cannot be imagined without bearings that realize spatial fixation of rotating rotors and perceive the main part of static and dynamic forces, then increasing efficiency, reliability and resource, as well as providing trouble-free and safe operation of these mechanisms is closely related to the need for qualitative assessment of their technical condition during initial and inter-repair control.

This work is based on new phenomena and regularities discovered by the authors, which were previously experimentally proven and theoretically based on the equipment developed and created at the modern level: tribocavitation, retention of micro- and nano-particles of ferromagnetic and other nature of contamination by magnetic fields inherent in ball bearing parts, etc.

Key words: miniature and precision ball bearings, vibroacoustic characteristics, tribosystem, friction moment, run-out time, micro- and nanoparticle pollution.