Bereitstellung von Lastannahmen für Großantriebe mittels Mehrkörper-Simulation*

Schlecht, Berthold; Rosenlöcher, Thomas; Hähnel, Thomas; Höfgen, Mathias

doi:10.3139/120.100931

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…The first assembly of multibody-system models of drive trains of wind turbines was done in the first years of the 21st century [4,5,7,9]. The method as well as the used computers were further developed since this time.…”

Section: Design Of the Gearboxmentioning

confidence: 99%

Investigation of the load distribution in planetary gearboxes of wind turbines using multibody-system simulation

Rosenlöcher

Schlecht

2023

Forsch Ingenieurwes

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The high costs for the development, erecting und operation of wind turbines are connected to very high expectations for a reliable and low-maintenance operation and require a precise knowledge of the loads and stresses to be expected. The transfer of knowledge from smaller wind turbines and possibly other concepts succeeds only to a limited extent. Rather comprehensive simulation approaches to determine wind loads, operational conditions and possible resonances are already used since many years. By means of simulation models, the natural frequencies can be determined and compared to possible excitations. The simulation of the operation of the wind turbine under different wind speeds allows the calculation of component loads as a basis for the further design process.The paper concentrates on the possibility of using multibody-system simulation models in the design process of gearboxes for wind turbines and the associated dynamic properties of the complete system by the example of the 15 MW reference wind turbine of the National Renewable Energy Laboratory (NREL). The comprehensive factors which influence the load distribution in the gearing of the first planetary gear stage require a detailed consideration of the elasticity of all relevant components. Based on the developed gearbox design and a detailed multibody-system simulation model, the influence of the level of detail of the model on the resulting natural frequencies and the occurring load distribution in the gearing of the planetary gear stages can be discussed. The present results show that findings on the required level of detail of simulation models cannot be applied to new turbines independently of the power class.

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Section: Design Of the Gearboxmentioning

confidence: 99%

Investigation of the load distribution in planetary gearboxes of wind turbines using multibody-system simulation

Rosenlöcher

Schlecht

2023

Forsch Ingenieurwes

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Review on wind turbines with focus on drive train system dynamics

2014

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The strong growth within the wind technology market, underpinned by policy goals around the world, has highlighted the demand for advanced engineering analysis to improve wind turbine (WT) design, both in terms of reliability and design of larger turbines. This paper presents a review of the latest research that has been carried out in modeling and analysis of load transmission in WT drive train systems and their components. Common failure roots are elaborated, and probable hypotheses are presented. A modeling approach is derived by classification into engineering, mathematical and computational models with a focus on gearbox modeling efforts. Precise understanding of drive train system dynamics and load transmission is necessary for a cost efficient and robust system design to enhance reliability and reduce the maintenance costs. Design optimization of WTs and their subsystems will make future WTs more attractive compared with fossil and nuclear power plants, and it is therefore an important issue for a more sustainable environment.

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