Patent ID: 8167514
Filing Date: 2012-05-01
Classification: B63B

Abstract:
1. A strake system for reducing vortex induced motion of a submerged or partially submerged structure, comprising: a) at least one support column extending upwardly to an elevation above a water surface; b) said support column including at least two sidewalls joined along a respective longitudinal edge forming a longitudinal corner at the point of juncture; c) at least one strake secured on said support column, said strake intersecting said longitudinal corner of said support column at an angle Φ relative to said longitudinal corner; and d) wherein said strake comprises a substantially planar body having a first edge defining a first longitudinal side of said body, a second edge defining an upper end of said body, a third edge defining a lower end of said body, a fourth edge defining a second longitudinal side of said body, and wherein said fourth edge includes a first segment extending downwardly from said second edge at an angle less than 90° relative to said second edge and a second segment extending upwardly from said third edge at an angle less than 90° relative to said third edge.