Windmill support structure

Patent · Tue Sep 04 00:00:00 EDT 1984

OSTI ID:6317871

D'Amato, R

A windmill installation includes a windmill supported on a tower that includes three legs. The connections of the legs to their respective bases are provided by compliance members that are compliant enough that the natural frequency of axial bending of the windmill installation is less than the frequency with which blades of the windmill pass behind the tower. Also, a windmill compliance assembly provides the connection between the windmill and the tower and has enough compliance that the natural frequency of pivotal bending is also below that frequency. As a result, vibration at a resonant frequency of the structure is avoided during normal operation.

• Assignee: US Windpower, Inc.
• Patent Number(s): US 4469956
• OSTI ID: 6317871
• Resource Relation: Patent File Date: Filed date 24 Jan 1983; Other Information: PAT-APPL-460655
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
SUPPORTS
DESIGN
TOWERS
WIND TURBINES
BENDING
MECHANICAL VIBRATIONS
OPERATION
MACHINERY
MECHANICAL STRUCTURES
TURBINES
TURBOMACHINERY
170602* - Wind Energy Engineering- Turbine Design & Operation