Webseite Chair for Wind Power Drives
The Chair for Wind Power Drives at the RWTH Aachen University conducts research in the field of drivetrain technologies for wind turbines (WT). In numerous research projects throughout past decades, drivetrain technologies as well as vibration analysis of WTs and their drivetrain components have been continuously developed.
For the improvement of the reliability of the gearbox of a WT it is very important that there is a fundamental knowledge of the prevalent loads so that it is possible to consider them in the early stages of the product development process.
In order to investigate the drivetrain loads validated multibody dynamics models (MBS) can be used in combination with models for the control, the electronics and the aerodynamics.
The CWD has a validated MBS model of a wind turbine research nacelle which is continuously optimized. Special load events, like grid faults, lead to highly dynamic excitations of the electromagnetic generator torque, which can be detrimental to the gearbox components of the turbine. Aim of this work is, to use the results of the MBS model and methodically analyse them in order to quantify the influence of the special load events on the risk of damage to the components (e.g. an increase in the risk of smearing or fatigue damage in the gearbox bearings.
- Familiarization with the existing MBS model of the research nacelle in SIMPACK
- Load calculation with regard to special load events
- Choice of a damage criteria according to state of the art (e.g. smearing criterion or fatigue lifetime according to ISO)
- Analysis of the load results using the criteria
- Derivation of a data analytics method for the quantification of the influence of special load events on the damage risk e.g. based on Palmgren-Miner rule
- Evaluation and interpretation of the results
- Motivation to work independently on technical questions in the field of drivetrain technology
- Interest in modelling and simulation
- Prior knowledge of multibody simulation in SIMPACK advantageous but not necessary
- Immediate start and rapid progress of the thesis
- Intensive supervision
- Flexible working hours in a young and motivated team
We look forward to your application by email:
Julian Röder, M. Sc. RWTH
Chair for Wind Power Drives
Campus-Boulevard 61, 52074 Aachen
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