Abstract
The metal tower, or the pylon, is one of the most important elements in the construction of a wind turbine. It has the role of supporting the entire wind turbine, and it also allows access for inspection and conducting planned maintenance and repairs. Moreover, the tower ensures support for the structure and strengthens the whole assembly. It has a particularly important role, as it has to face very severe weather conditions. The present study aims to analyze the forces and moments resulting from the action of the wind on the tower of a wind turbine. Two important load cases are considered, namely, the load under operating conditions and the ultimate load under 50 year wind conditions. For this purpose, cylindrical and conical geometric shapes of the tower were chosen. These were analyzed under the action of both normal and extreme wind speeds. Then, the behavior of the two towers under the action of the wind speed for a location in the Black Sea was analyzed. Finally, in an attempt to make the structure more economical, the thickness of the shell was reduced.
Highlights
Behavior of Wind Turbines OperatingGlobal warming is a set of changes that affect the planet
The most common method of designing wind turbine towers is by manufacturing sections between 20 and 30 m coupled with flanges at both ends and bolting them to the location
The two towers were modeled as shell structures in ANSYS
Summary
Behavior of Wind Turbines OperatingGlobal warming is a set of changes that affect the planet. Reducing greenhouse gas emissions is a point of interest in the 21st century because of the negative effects caused by the exploitation of conventional resources to produce electricity. Carbon dioxide is responsible for approximately three-quarters of greenhouse gas emissions, which can remain in the atmosphere for thousands of years. These emissions have gradually increased, and in 2021, they reached a value of 33 Gt CO2 , despite the significant decrease that was noticed in 2020 (having a value of 31.5 Gt CO2 ), which was considered the largest decrease recorded globally, even exceeding the decline in 2009 when the global financial crisis hit [4]. Have CO2 emissions decreased, but energy demand has fallen the most since World War II and to date, decreasing by approximately 4.5% [5]
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