On lifetime extension of wind turbine drivetrains

Tartt, Kelly and R. Nejad, Amir and Kazemi-Amiri, Abbas and McDonald, Alasdair; (2021) On lifetime extension of wind turbine drivetrains. In: ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering. ASME, New York. ISBN 9780791885192 (https://doi.org/10.1115/OMAE2021-62516)

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The focused shift to reduce carbon emissions by substituting fossil fuels with renewable energy sources, including wind, is increasing. This means that more and more wind turbines are being installed, both onshore and offshore and as this number increases, more and more turbines are reaching their end of designed service life. Extending this designed service life, which is commonly referred to as lifetime extension (LTE), is particularly favoured by owner/operators, due to economic reasons. Whilst there are relatively well-established practices for lifetime extension of structural members or those preserving structural integrity, the electro-mechanical and drivetrain systems are often overlooked. Therefore, this paper reviews lifetime extension assessment practices executed within a variety of industries, such as oil and gas, marine vessels, electrical machines, mechanical rotating equipment and bearings, to determine if any of these practices can be implemented or adapted within the wind industry, particularly on wind turbine drivetrains.


Tartt, Kelly, R. Nejad, Amir, Kazemi-Amiri, Abbas ORCID logoORCID: https://orcid.org/0000-0002-6741-9274 and McDonald, Alasdair;