Study on dynamics of planetary gear transmission system

In recent years, with the continuous development of mechanical vibration theory, the research on mechanical system at home and abroad has gradually begun to study the deeper causes of vibration and noise problems from the original strength check, and studies the dynamic characteristics of the system under the premise of considering different excitation factors, different types and different degrees of freedom models.

In view of the object to be studied, the idea of first part and then the whole is analyzed. Firstly, the sealed rotor system considering gear meshing characteristics is divided into transmission system and rotor system, and then the two subsystems are analyzed independently. Finally, the dynamic characteristics of the sealed rotor system considering gear meshing characteristics are studied.

Because of its unique advantages, planetary gear transmission system has been widely used in industrial and agricultural production, but its vibration and noise problems have always been the focus of attention. Therefore, the purpose of studying the dynamic characteristics of planetary gear transmission system is to let people understand the dynamic behavior of the system in the process of transmission power and motion, which is also a branch of gear system dynamics. Compared with ordinary fixed shaft gear, planetary gear transmission system has more complex structure, which makes it more difficult to study its dynamic characteristics. However, the structure of planetary gear transmission is the preferred structure of speed increaser, which makes people at home and abroad devote themselves to the study of its dynamic characteristics and accumulate a lot of research results.

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