Wind turbine blades break the wind pole

Why do wind turbine blades fail?

Multiple requests from the same IP address are counted as one view. A review of the root causes and mechanisms of damage and failure to wind turbine blades is presented in this paper. In particular, the mechanisms of leading edge erosion, adhesive joint degradation, trailing edge failure, buckling and blade collapse phenomena are considered.

How are wind turbine blade failure mechanisms analyzed?

Generally, failure mechanisms of wind turbine blades are analyzed using the following main methods: Computational modelling of blade deformation and damage. Post-mortem analysis of failed or damaged blades (either test blades or blades taken from old or damaged wind turbines) is the most obvious approach to explore the blade failure mechanisms.

Can rough surface damage a wind turbine blade?

The damaged, rough surface can reduce the aerodynamic performance of blades and energy generation. It does not prevent the wind turbine from functioning, but the surface defects grow and develop and can lead to structural damage of the blade. Generally, failure mechanisms of wind turbine blades are analyzed using the following main methods:

Do wind turbine blades erode?

Still, the erosion (as said) is most often observed and is the earliest observed damage mechanism of wind turbine blades (1…2 years after installation [ 19 ]), which can lead to a reduction in the annual energy production of wind turbines (5% and more) and a reduction in further damage in the laminates. 3.2. Tapered Areas and Plydrop

What happens to wind turbine blades during service?

Wind turbine blades are subject to complex environmental and mechanical loading during their service time, including cyclic deformation, rain, sand and contaminants causing erosion, icing, high moisture and temperature variations, but also extraordinary events, such as transportation damage, lightning strikes and bird impacts [ 9, 10, 11, 12 ].

Do different reinforcing elements in wind turbine blades reduce damage?

Summarizing, one can state that different reinforcing elements in wind turbine blades can allow the common damage mechanisms to be mitigated and reduced.