Retractable strake and method

A retractable strake is disclosed that includes an assembly of flexible finger elements or flexible faces. The assembly, when coupled to a structure, deflect at wind speeds greater than approximately twenty mph or wind pressures greater than approximately one psf. Accordingly, the strakes' retr...

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Bibliographische Detailangaben
Hauptverfasser:	STEINKAMP JEFFREY H, BUTTS JAMES C
Format:	Patent
Sprache:	eng
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS BLASTING ELECTRICITY FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS FLUID-PRESSURE ACTUATORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	A retractable strake is disclosed that includes an assembly of flexible finger elements or flexible faces. The assembly, when coupled to a structure, deflect at wind speeds greater than approximately twenty mph or wind pressures greater than approximately one psf. Accordingly, the strakes' retractable or flexing feature does not contribute to the wind load when the wind load is overly severe, while providing vortex shedding benefits within a wind speed profile range.