Electromechanical Analysis of Coupled Motor-Gearbox Vibrations with Planetary Gears

Subject Areas : Renewable energy

Seyed Ehsan  Masalegoo ¹ (Department of Mechanical Engineering- Najafabad Branch, Islamic Azad University, Najafabad, Iran)
Ali  Soleimani ² (Modern Manufacturing Technologies Research Center- Najafabad Branch, Islamic Azad University, Najafabad, Iran)

Received: 2021-12-05 Accepted : 2022-02-09 Published : 2024-02-20

Keywords: Vibration, frequency spectrum, Transmission error, Mesh stiffness, Planetary gearbox,

Abstract :

Gearbox and vibrations are two inseparable components of each other. In other words, the nature of the gear meshing in the gearbox has inevitable vibrations due to the impact during the meshing of the teeth. These unavoidable vibrations in some cases cause the gearbox to malfunction, so vibration analyzes are very important and efficient in analyzing gearbox performance and optimizing them. A planetary gearbox has a main gear of the sun as the actuator in the center, several planetary gears around it and a ring gear in which this set rotates and an arm is attached to the planetary gears and acts as the output for the planetary gearbox. In this paper, first to express the desired vibration relations in the planetary gearbox. Then to investigate and apply the relations governing the electric motor in MATLAB software. In the following, the vibration model of the planetary gearbox motor coupling model is simulated in order to observe and analyze the interaction between the electric motor and the planetary gearbox. Frequency spectrum are analyzed to investigate the interaction of motor and planetary gearbox. It should be noted that dynamic modeling and analysis has been performed in ABAQUS software to extract the mesh stiffness of time-varying engagement between the teeth of the two gears involved in the planetary gearbox.

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