Theoretical analysis of the vibration modes of the star herringbone gear transmission system

Abstract

The star herringbone gear transmission system has a high load-carrying capacity, and is widely used in aviation, marine power drives, off-road vehicles, and hybrid electric-drive vehicles. Vibration and noise are the key concerns with this transmission system. The lumped mass method was adopted to establish the dynamic model and equations of this system. The modes of the system were analyzed and classified, and the eigenvalues and their multiplicities were determined. The results showed that the system has four typical vibration modes: (1) a lateral-rotational coupled vibration mode (multiplicity m = 1), (2) star gear compound mode (multiplicity m = N-3, N > 3), (3) center component lateral vibration mode (multiplicity m = 2), and (4) star gear and center gear-coupled mode (multiplicity m = 2). The contribution of this paper lies in the discovery of the coupling vibration modes in the star herringbone gear transmission system and the multiplicities of these modes. This work provides the foundation for further research on vibration suppression for the star herringbone gear transmission system and the theory of planet phasing.

Dynamic modelling and vibration characteristics of a marine compound gear transmission system

“…Liu et al 35 employed the lumped parameters method to analyse the modal properties of a two-stage planetary gear considering the elasticity of ring gear and the friction force of tooth surface. Mo et al 36 and Wang et al 37 successively established a lumped-parameter dynamic model to analyse the natural characteristics of a double-helical star gear system. Wang et al 38 studied the influence of tooth surface friction on the multiple periodic and chaotic motions of a planetary gear system.…”

Investigation of Load Sharing and Dynamic Load Characteristics of a Split Torque Transmission System with Double‐Helical Gear Modification

“…Mo et al [14] proposed a new dynamic model for double-helical star gearing system and obtained the vibration model, natural characteristics, and dynamic response of the system. Wang et al [15] established a dynamic model of a star herringbone gear transmission system and discovered that the system has four typical vibration modes. Wang et al [16] investigated the influence of bearing's position and permutations on the load sharing performance of star gearing system.…”