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Descripción
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| By their very nature, wind turbines are subjected to many variable and cyclic loads and, consequently, they are prone to experiencing fatigue cracking problems in various parts of the turbine. Examples include the aluminium rings (alurings) of the blades of several commercial wind turbines, the gears of the yaw control mechanism and even the main rack supporting all the equipment. Principia has used numerical simulation with Abaqus and fe-safe to study the origin of many of those cracks, determine their ability to propagate, and analyse the merits of various strategies proposed to solve existing problems or prevent their future occurrence. Among the technologies involved, besides local stress and strain fatigue initiation criteria, are critical distance methods and crack representations based on the extended finite element method (XFEM) to assess the growth behaviour. The paper concentrates on two of the cases studied, that of the alurings and that of the yaw drive gears. It describes the methodology used for analysing the problem, the results obtained from the simulations and the conclusions reached. | |
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Internacional
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Si |
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Nombre congreso
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European Durability User Group Meeting |
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Tipo de participación
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960 |
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Lugar del congreso
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Hanau (Germany) |
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Revisores
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Si |
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ISBN o ISSN
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0000000000000 |
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DOI
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Fecha inicio congreso
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04/12/2018 |
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Fecha fin congreso
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06/12/2018 |
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Desde la página
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1 |
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Hasta la página
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15 |
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Título de las actas
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European Durability User Group Meeting |