FLOATING SUPPORT STRUCTURE FOR OFFSHORE WINDMILL
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United States of America Patent
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Issued Date -
Aug 24, 2023
app pub date -
Jun 15, 2021
filing date -
Jun 19, 2020
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Abstract
A floating support structure for supporting a windmill system includes a windmill tower, a windmill nacelle, and windmill blades. The support structure includes an aft main section, a transverse main section, and a connecting flange. The aft main section includes a horizontal aft part with a first horizontal aft end and a second horizontal aft end, a vertical aft part with a first vertical aft end at least indirectly connected perpendicular to the first horizontal aft end and a second vertical aft end, and an aft damping structure connected to the second vertical aft end. The vertical and the horizontal aft parts are oriented in a common vertical aft plane. A horizontal cross sectional area of the aft damping structure is larger than a horizontal cross-sectional area of the second vertical aft end. The transverse main section includes a horizontal transverse part with a first horizontal transverse end and a second horizontal transverse end, two vertical transverse parts, each having a first vertical transverse end and a second vertical transverse end, wherein the first vertical transverse ends of the vertical transverse parts are at least indirectly connected perpendicular to the first and second horizontal transverse ends, and two transverse damping structures connected to the second vertical transverse ends of the respective two vertical transverse parts. The two vertical transverse parts and the horizontal transverse part are oriented in a common vertical transverse plane. A horizontal cross sectional area of each of the transverse damping structures is larger than a horizontal cross sectional area of the second vertical transverse end. The connecting flange is for connecting a coupling end of the windmill tower distal to the windmill nacelle vertically onto the floating support structure. The second horizontal aft end of the aft main section is connected to the horizontal transverse part of the transverse main section such that the vertical aft plane is oriented perpendicular to the vertical transverse plane.
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