Main Research Results

Ministry of Science and
Higher Education
of the Russian Federation

Russian Academy of Sciences

Department of power engineering, mechanical engineering, mechanics and control processes

Mechanical Engineering Research
Institute of the Russian
Academy of Sciences

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Main Scientific Results

  • A physico-mathematical model of excitation of vibrations in gears of spur, helical and chevron gears has been developed.
  • Mathematical modeling method for dynamic processes in cylindrical gears in the time domain is developed.

The method includes:
a) a generalized model of vibration excitation,
b) a dynamic model of a gear train,
c) types of equations of motion of the gears during the meshing period,
d) a logical algorithm for choosing the type of the equation of motion on segments of the meshing period,
e) software.
  • A technique for representing compelling factors in the Fourier series for calculating the forced oscillations of the gears of the Main Turbo-Gear Aggregates (GTZA) in the frequency domain is developed.
  • A dynamic model and software for calculating the forced oscillations of a planetary gearbox are developed using methods such as dynamic compliance, diacoptics, matrix decompression, and topology.
  • The results of the developments are included in the "Rules for designing low-noise ship mechanisms ...." And "Guidelines for designing low-noise ship mechanisms ...."
  • IMASH recommendations are taken into account in the design of the planetary gearbox RP-18 (Project "Yasen"). At factory bench tests, vibration reduction at the tooth frequency was 10 dB.