| 摘要 |
A breakwater (wave attenuation system) includes two horizontal tubes as buoyant members connected to one another, their cross-sections representing vertices of a triangle, whose legs are interconnecting struts. A perforated, submerged, ballast tube forms the third vertex. Wave motion is perpendicular to the length of the float tubes tethered to an anchor at the sea floor. A lead float tube rises in response to an approaching wave, often cutting off the wave crest, while a trailing float tube rises less and later as the wave passes. Asynchronous rising and falling of the leading and trailing, floating, top tubes rocks the breakwater, redirecting and dissipating wave momentum, energy, and water volume by rotating the assembly, thrashing the water. |
| 主权项 |
1. A method for attenuating waves in open water, the method comprising:
providing an anchor; securing a tether to the anchor; providing an array of tubes fixed to one another and floating horizontally in water having a surface; securing the array to the anchor by the tether extending in a loop about the array of tubes to permit an amount rotation of the array within and with respect to the loop; the providing the array, wherein the array constitutes a triangulated cross-section having vertices defined by first and second tubes only sufficiently evacuated of water to render them buoyant enough to both remain partially submerged and partially protruding at the surface of the water, and a third, ballast, tube fixed with respect to the first and second tubes to move in substantially rigid body motion therewith and always therebelow, and perforated to remain filled by the water; and wherein the tether loop contacts the first and second tubes but not the third tube. |
