Research on dynamic behavior of multistage gears-bearings and box coupling system

Lu, Wenjia; Zhang, Yimin; Cheng, Hongchuan; Zhou, Yang; Lv, Hangyuan

doi:10.1016/j.measurement.2019.107096

Cited by 24 publications

(14 citation statements)

References 20 publications

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“…In the model, not only the time-varying meshing stiffness excitation but also the meshing friction excitation are considered. The meshing friction excitation includes the time-varying friction force and time-varying friction torque, and the friction excitation is obtained by calculating time-varying contact line length (Ma, 2020). The form of the differential equation of the system motion can be expressed as Eq.…”

Section: Global Coupling Dynamic Modelmentioning

confidence: 99%

“…Wang et al (1996Wang et al ( , 1997 analyzed the vibration characteristics of the two engines with one gearbox system, and the calculated results of the dy-namic model are close to the test ones. The research team at Northwestern Polytechnical University, Xi'an, China, studied the coupling vibration of different types of multi-engine multi-gearbox marine gearing (Zhao, 2018;Meng, 2019;Ma, 2020;Li, 2020). Coupling of gear systems mainly includes coupling of degrees of freedom, coupling of multistage gear pairs and coupling of supporting systems.…”

Section: Introductionmentioning

confidence: 99%

“…Ren et al (2017Ren et al ( , 2018 established a fully coupled dynamic model of a single-stage gearbox, using the impedance synthesis method. Lu et al (2020) used the static sub-structure method to couple the housing with the multi-stage gear rotor system.…”

Section: Introductionmentioning

confidence: 99%

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Review article: Research on coupled vibration of multi-engine multi-gearbox marine gearing

Gong

Liu

et al. 2021

Mech. Sci.

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Abstract. The type and working principle of multi-engine multi-gearbox gearing are introduced. The global dynamic modeling method, based on the generalized finite element theory, and the layered dynamic modeling method, based on the idea of whole first and then partial are proposed, and the dynamic models of three operation modes in the four engines with two shafts are established. The effects of coupling, rotation speed, configuration and power loss on the dynamic response of the system are studied by using the dynamic model. The research results show that the coupling vibration of multi-engine multi-gearbox gearing is obvious at low speed, and the coupling vibration weakens with the increase in speed. Reducing the coupling stiffness can weaken the coupling vibration of the system. The symmetrical structure of the transmission system has the same dynamic response at the symmetrical position. Meshing friction has little effect on the dynamic response of the system. The more power flowing through the cross-connect gearbox, the greater the system power loss. This research provides theoretical support for the low-vibration design of multi-engine multi-gearbox marine gearing and has a positive significance for understanding the coupled vibration characteristics of complex gear systems.

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Section: Global Coupling Dynamic Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review article: Research on coupled vibration of multi-engine multi-gearbox marine gearing

Gong

Liu

et al. 2021

Mech. Sci.

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“…Dynamic behavior of gear transmission system directly affects its NVH performance, 2 and many scholars have carried out research work on dynamic modeling, analysis, and optimization of gear transmission system. [3][4][5][6][7][8][9][10] Dynamic modeling mainly includes finite element method (FEM) [5][6][7]9 and lumped parameter method. 3,4,8,10 Liu et al 9 applied FEM to study the effect of meshing impact force and meshing stiffness on the dynamic behavior of gear transmission system in EV.…”

Section: Introductionmentioning

confidence: 99%

Effects of lightweight gear blank on noise, vibration and harshness for electric drive system in electric vehicles

Hou

Lei

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part K:

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In this paper, effects of lightweight gear blank on static and dynamic behavior for electric drive system in electric vehicles are studied. First, a hybrid finite element-analytical method is proposed in this paper to establish gear load contact analysis model considering the structure of lightweight gear blank, which can balance the computing speed and numerical accuracy. Second, this paper establishes a rigid-flexible coupled dynamic model of electric drive system considering shaft elasticity, bearing stiffness, and housing flexibility. Finally, aiming at the noise, vibration, and harshness problem of an electric drive system equipped on electric vehicles, effects of gear web and gear rim thickness on noise, vibration, and harshness excitation source such as static transmission error and dynamic meshing force as well as dynamic response at bearings and housing are analyzed. The results show that changing gear web and gear rim thickness can significantly reduce dynamic meshing force and dynamic response. Compared with solid gear, dynamic meshing force is reduced by 68.50%, and dynamic response is reduced by 66.70% after optimization, thereby significantly improving the noise, vibration, and harshness performance of gear transmission system in electric vehicles.

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“…To research the mechanism of gearbox vibration faults and find effective solutions, many simulation models have been proposed to study the influence of typical boundary conditions on gearbox vibrations. e common modelling objective is to simulate the gear meshing properties, because the excitation effects on the gearbox always derive from an internal cause (gear meshing) and an external cause (dynamic load) [4]. For studies on a wind turbine gearbox, multibody simulation models are frequently applied, because the gearbox is a coupled multibody system with complicated boundary conditions, and the simulation of the planetary gear stage should be the most significant in the modelling.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Parallel-Axis Helix Gear Pair on Wind Turbine Gearbox Vibration Control

Zhang

Chen³

et al. 2020

Shock and Vibration

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This article studies the effects of some basic parameters of a parallel-axis helix gear stage on wind turbine gearbox vibration in a case study: a multibody dynamic model is constructed to simulate the drive train of a faulted multistage wind turbine gearbox with serious vibrations. The significant vibration behaviour of the drive train for typical excitations is calculated, and the results according to specified geometric parameters of the gears are analysed in detail to investigate effective solutions for vibration reduction. The results indicate that the helix angle and numbers of teeth of a gear pair are the most significant factors for solving the problem. The effectiveness of the proposed solutions and relevant mechanisms are discussed and validated by a prototype vibration test.

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Research on dynamic behavior of multistage gears-bearings and box coupling system

Cited by 24 publications

References 20 publications

Review article: Research on coupled vibration of multi-engine multi-gearbox marine gearing

Review article: Research on coupled vibration of multi-engine multi-gearbox marine gearing

Effects of lightweight gear blank on noise, vibration and harshness for electric drive system in electric vehicles

The Effect of Parallel-Axis Helix Gear Pair on Wind Turbine Gearbox Vibration Control

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