I am pleased to invite you to watch my presentation that I held at the 5th Wind & Drivetrain Conference on April 7, 2022.
My name is Javier Rodriguez, and I work at the Spanish firm Principia, where I have worked in the numerical solution of many types of mechanical and structural problems.
Abstract:
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 analyze 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 behavior.
The communication mainly concentrates on two of the cases studied: the alu-rings and the yaw drive gears. It describes the methodology used for analyzing the problem, the results obtained from the simulations, and the conclusions reached.
See below for the presentation slides and a live recording of my presentation.
PDF:
Live Recording:
Please feel free to use the comments section below to ask any questions you may have or start a discussion with your peers.
Technical Manager of Principia
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Simpack Multibody Dynamics Multibody Simulation Motion Multibody System Simulation Wind Turbine Dynamics Wind Turbines Simpack Drivetrain Wind Turbine Engineering Blades & Materials
