Model of the Planetary Gear Based on Multi-Body Method and Its Comparison with Experiment on the Basis of Gear Meshing Frequency and Sidebands

Dąbrowski, D.; Adamczyk, J.; Mora, Héctor Plascencia; Hashemiyan, Zahra

doi:10.1007/978-3-319-04187-2_11

Cited by 6 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All elements of the multi‐body model are constrained to preserve behavior of the real gearbox. Inputs to the model are three components of forces and moments acting on the input and output shafts …”

Section: Multibody Model Of Gearboxmentioning

confidence: 99%

See 1 more Smart Citation

Identification of loading conditions resulting in roller slippage in gearbox bearings of large wind turbines

Dąbrowski

Natarajan

2017

Wind Energy

Self Cite

View full text Add to dashboard Cite

The dynamic loads on the rollers inside the bearings of large wind turbine gearboxes operating under transient conditions are presented with a focus on identifying conditions leading to slippage of rollers. The methodology was developed using a multi-body model of the drivetrain coupled with aeroelastic simulations of the wind turbine system. A 5 MW reference wind turbine is considered for which a three-stage planetary gearbox is designed on the basis of upscaling of an actual 750 kW gearbox unit. Multi-body dynamic simulations are run using the ADAMS software using a detailed model of the gearbox planetary bearings to investigate transient loads inside the planet bearing. It was found that assembly and pre-loading conditions have significant influence on the bearing's operation. Also, the load distribution in the gearbox bearings strongly depends on wind turbine operation. Wind turbine start-up and shut-down under normal conditions are shown to induce roller slippage, as characterized by loss of contacts and impacts between rollers and raceways. The roller impacts occur under reduced initial pre-load on opposite sides of the load zone followed by stress variation, which can be one of the potential reasons leading to wear and premature bearing failures.While the focus herein is on the gearbox, important WT aspects like aeroelastic interactions and control are included. Aeroelastic models allow interactions between inertial, elastic and aerodynamic forces and their servo mechanisms. Examples of aeroelastic software are FAST 10 developed by NREL, HAWC2 11 by DTU Wind Energy, Bladed 12 developed by DNV-GL and AdWiMo 13 by MSC Software. These calculate WT loads and response in the time domain on the basis of input environmental conditions, but usually, in these models, the gearbox dynamics are neglected. 14 The detailed models for drivetrain components, usually for gearboxes, can be built by lumped parameter models, multi-body system or finite element (FE) method. These models allow simulation of the internal loading resulting from dynamical interactions in the drivetrain. It is important to determine the level of complexity required to balance between accuracy and computational efficiency. According to Guo et al., 15 for drivetrain modeling, the gearbox alone is insufficient to capture component loads and motions; coupling with the main bearing and generator is important. For simulation of loads in a gearbox, it is important to include the clearance in bearings and pre-load, which can influence the non-torque load transfer path, as well as deformations of housing and carrier that can change bearing loads. From the point of view of excitation sources, besides the torque input, the non-torque loads and gravity are relevant. 15 Oyague 14 has presented the state of the art on simulation codes for WT's gearboxes. The author has shown four stages of drivetrain modeling due to model complexity. A purely torsional model of WT drivetrain based on the lumped parameter system with 5 degrees of freedom (DOFs) was used by Mandic...

show abstract

Section: Multibody Model Of Gearboxmentioning

confidence: 99%

“…The ADAMS contact model requires the specification of the contact stiffness K , the maximum damping coefficient C max , the contact coefficient e and the maximum penetration depth d max . These parameters were calculated according to the formula presented in the literature and are presented in Table .…”

Section: Multibody Model Of Gearboxmentioning

confidence: 99%

Identification of loading conditions resulting in roller slippage in gearbox bearings of large wind turbines

Dąbrowski

Natarajan

2017

Wind Energy

Self Cite

View full text Add to dashboard Cite

show abstract

Multi-body Dynamics Co-simulation of Planetary Gear Train for Dynamic Meshing Force Analysis

Silva

Eckert

Carvalho

et al. 2020

Multibody Mechatronic Systems

View full text Add to dashboard Cite

Fault Simulation and Experimental Validation of Accessory Transmission System

Sun,

Cao,

Yuan

et al. 2024

Lecture Notes in Mechanical Engineering

View full text Add to dashboard Cite

As an important part of the aero-engine, the accessory transmission system affects the operation status of the engine, and it is of great significance to carry out fault mechanism analysis and fault identification. This paper takes a certain type of aero-engine accessory transmission system as the research object, flexes the box using ANSYS, establishes a rigid-flexible coupling model under normal working conditions and fault conditions through ADAMS, and studies the vibration characteristics in single fault and multi-fault combination modes, such as unbalance of the shaft system, gear misalignment and gear broken tooth. Considering different load loading conditions, the dynamic simulation of the transmission system is carried out, the shafting displacement and box acceleration response are extracted, the time–frequency domain feature information of the vibration signal is analyzed, and the fault characteristics and fault types are corresponded one-to-one. The test bench for the principle prototype of the accessory transmission system is designed and built, and the experimental research is carried out. The results show that the simulation results have good consistency with the principle prototype test results, which verifies the rationality of the simulation model.

show abstract

Model of the Planetary Gear Based on Multi-Body Method and Its Comparison with Experiment on the Basis of Gear Meshing Frequency and Sidebands

Cited by 6 publications

References 12 publications

Identification of loading conditions resulting in roller slippage in gearbox bearings of large wind turbines

Identification of loading conditions resulting in roller slippage in gearbox bearings of large wind turbines

Multi-body Dynamics Co-simulation of Planetary Gear Train for Dynamic Meshing Force Analysis

Fault Simulation and Experimental Validation of Accessory Transmission System

Contact Info

Product

Resources

About