Vibroacoustical diagnosis of planetary precessional kinematical transmission

7th International Conference on Advanced Concepts in Mechanical Engineering

Malcoci, Iu.^1 ; Bodnariuc, I.^1

Fundamentals of Machines Design Department, Technical University Moldova, Chiinu, Moldova^1

关键词: Dynamic process;    High-precision;    Loss of energy;    Measured results;    Misaligned shafts;    Sound level meter;    System components;    Vibration severity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012003/pdf
DOI  :  10.1088/1757-899X/147/1/012003

来源: IOP

【 摘 要 】

An ideal dynamical system should not generate any vibrations, because vibrations mean a loss of energy. Vibration in planetary precessional gear box occurs at bearings, gear wheels, misaligned shafts, imbalance rotating parts, couplings. If damage occurs, not only the dynamic processes change, but also the forces that act on system components. Regarding this aspects, sound level was measured by using Brüel & Kjær Sound Level Meter Type 2250 Light that has everything needed to perform high-precision, Class 1 measurement tasks in environmental, occupational and industrial application areas. Obtained and measured results were presented in diagrams and tables to be compared with German standard VDI-2058 Limit value for vibration severity and noise level.