Reduction of Vibroactivity of Planetary Gearboxes of the GTZA

 1. A physico-mathematical model of vibration excitation in gear teeth of spur gears, helical gears and chevron gears has been developed. The method of mathematical modeling of dynamic processes in cylindrical gear pairs in the time domain is developed.

2. The method includes: a) a generalized model of vibration excitation, b) a dynamic model of the gear transmission, c) types of equations of motion of the gears during the engagement period, d) a logical algorithm for choosing the type of the equation of motion in the segments of the engaging period, e) software.

3. A technique for representing the compelling factors in the Fourier series for calculating the forced oscillations of the GTZA reducers in the frequency domain was developed.

4. A dynamic model and software for calculating the forced oscillations of a planetary gearbox have been developed using methods such as dynamic compliance, diacoptics, matrix decompression, and topology.

5. The results of the developments are included in the "Rules for the design of low-noise ship mechanisms..." and "Guidelines for the design of low-noise ship mechanisms...".

6. IMASH recommendations are taken into account in the design of the planetary gearbox RP-18 (''Yasen'' Project). At factory bench tests, vibration reduction at the tooth frequency was 10 dB. The submarine undergoes sea trials.

 

                                              Planetary Gearbox