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US20020132539A1 - Ribbed module for wave energy dispersion - Google Patents

Ribbed module for wave energy dispersion Download PDF

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Publication number
US20020132539A1
US20020132539A1 US10/002,601 US260101A US2002132539A1 US 20020132539 A1 US20020132539 A1 US 20020132539A1 US 260101 A US260101 A US 260101A US 2002132539 A1 US2002132539 A1 US 2002132539A1
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US
United States
Prior art keywords
water
walls
modules
ribbed
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/002,601
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English (en)
Inventor
Dennis Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WAVE DISPERSION TECHNOLOGIES Inc
Original Assignee
WAVE DISPERSION TECHNOLOGIES Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US29/132,444 external-priority patent/USD457969S1/en
Application filed by WAVE DISPERSION TECHNOLOGIES Inc filed Critical WAVE DISPERSION TECHNOLOGIES Inc
Priority to US10/002,601 priority Critical patent/US20020132539A1/en
Assigned to WAVE DISPERSION TECHNOLOGIES, INC. reassignment WAVE DISPERSION TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SMITH, DENNIS G.
Publication of US20020132539A1 publication Critical patent/US20020132539A1/en
Priority to AU2002350060A priority patent/AU2002350060A1/en
Priority to PCT/US2002/034782 priority patent/WO2003037592A2/fr
Priority to US10/868,117 priority patent/US7527453B2/en
Abandoned legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
    • E02B3/062—Constructions floating in operational condition, e.g. breakwaters or wave dissipating walls
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters

Definitions

  • the present invention relates to apparatus and methods used to intercept waves and disperse the energy therein to thereby dissipate, if not eliminate, the wave action.
  • British Patent No. 805,789 also discloses a breakwater device which employs gas bubbles in the path of the wave motion to reduce sea waves and swell.
  • U.S. Pat. No. 5,879,105 to Bishop et al discloses a wave energy dispersion model with smooth flat faceted surface to dissipate wave energy and is incorporated herein by reference.
  • the present invention represents an improvement over this prior device.
  • the objects of the present invention are accomplished by providing a module constructed with a plurality of ribbed surfaces and channels arranged to fracture a wave impinging thereon and direct the wave into eddies and vortices which interfere with each other to substantially reduce the wave energy. Pairs of mating modules are joined together with a unique connection assembly. A plurality of such modules are connected to form breakwaters which reduce the effects of wave action on the shore.
  • FIG. 1 is a perspective view of the a portion of a system according to the present invention, including a plurality of the assembled ribbed modules wherein the broken lines are for illustrative purposes only.
  • FIG. 2 is a perspective front view of a pair of ribbed modules joined together.
  • FIG. 3 is a front elevational view of the joined pairs of ribbed modules, a rear elevational view being a mirror image thereof.
  • FIG. 4 is a left side elevational view of the pair of joined ribbed modules, a right side elevational view being a mirror image thereof.
  • FIG. 5 is a top plan view of the pair of ribbed modules, a bottom plan view being a mirror image thereof.
  • FIG. 6 is a perspective front view of a unitary ribbed module in place of the pair of modules of FIGS. 2 - 5 .
  • FIG. 7 is a left side elevational view of the unitary ribbed module, a right side view being a mirror image thereof.
  • FIG. 8 is a top plan view of the unitary ribbed module, a bottom plan view being a mirror image thereof.
  • FIG. 9 is a perspective front view of another embodiment of a pair of ribbed modules.
  • FIG. 10 is a perspective exploded view of two individual ribbed modules to be joined together as a pair.
  • FIG. 11 is an elevational view of one of the pair of ribbed modules in position for interlocking with the second of the pair shown in dotted lines.
  • FIG. 12 is a side elevational view in partial cross section of the pair of ribbed modules showing an alternate connection assembly for joining the modules.
  • FIG. 13 is a side elevational view in partial cross section of a portion of the connection assembly.
  • a ribbed energy extraction system 10 (hereinafter the “system”) of the present invention is constructed and arranged for use offshore in the sea and oceans, as well as for use in the waters surrounding marinas, harbors and the like.
  • the system has been characterized for use in particular with ocean waves, it is constructed and arranged to extract energy from flowing water, regardless of the salinity of water in which the system is positioned.
  • one of the advantages of the system is that it can be tuned to effectively and efficiently extract energy from flowing water, regardless of whether that water is flowing in the ocean, a delta or a river.
  • FIG. 1 a portion of the system is shown including a plurality of pairs of ribbed modules 12 to be secured in a layered arrangement, an anchoring assembly, a restraining assembly, or other shapes to be disposed in the water to extract energy therefrom.
  • a ribbed module 12 is shown from which the system is constructed.
  • the module consists of a buoyant body having four walls; designated front wall 14 , back wall 16 , top wall 18 and bottom wall 20 .
  • the perimeter of the walls are preferably of a rectangular shape.
  • the body also is provided with a first sidewall 22 and a second sidewall 24 in spaced relation.
  • the perimeter of the sidewalls are preferably of a rectangular shape. As shown in FIG. 4, the side walls extend outwardly and form a thicker central dimension which provides more efficient nesting of adjacent modules.
  • Transition surfaces 26 connect each one of said front wall, back wall, top wall and bottom wall to each of said sidewalls in spaced relation.
  • the transition surfaces are preferably of a triangular shape.
  • the various wall thicknesses and module sizes can be varied to suit different bodies of water.
  • the front, back, top and the bottom walls, and the first and second sidewalls all have a plurality of ridges 28 , grooves 30 and channels 32 providing ribbed surfaces which have increased friction drag and resistance to waves. Seams along which these surfaces intersect are preferably even and well defined, and provide for a generally 45° angle among the inclined surfaces.
  • the buoyant body of the module is provided with attaching means so that the plurality of buoyant bodies can be removably mounted and layered in a plurality of rows to arrive at an inverted pyramid configuration with the number of modules in the upper rows being greater and decreasing to the lower rows immersed in the water.
  • each one of the attaching means preferably four in number, is connected to at least one of each said walls.
  • the attaching means resemble and function as a yoke 34 .
  • Each one of the yokes is provided with a protruding end 36 and a transition end 38 .
  • the protruding end extends from the adjacent walls and is constructed with a length that is perpendicular to the first and second sidewalls in spaced relation.
  • the protruding end of the yoke is formed as a cylindrical section, as shown in FIGS. 2 and 3, although other shapes for the protruding end can be employed to effectively carry out the invention.
  • a longitudinal axis of the protruding end is arranged substantially perpendicular to a plane of each one of the sidewalls in spaced relation.
  • the outer surfaces 40 of the cylindrical protruding ends have ribbed protrusions and depressions similar to those of the front, back, top and bottom walls.
  • Opposed ends of the protruding end of the yoke terminate in spaced apart terminating surfaces which are substantially parallel to each other, and to the first and second sidewalls in spaced relation.
  • Each one of the buoyant bodies is provided with a passage means 42 which is constructed and arranged to extend through the protruding end and the spaced apart terminating surfaces of the yoke.
  • the distance between the spaced apart terminating surfaces of the protruding end is less than a distance measured between the first and second sidewalls in spaced relation.
  • the spaced apart terminating surfaces of the protruding end be constructed such that they are disposed in parallel relation to each other. This is to facilitate the mounting of a plurality of the modules (buoyant bodies) to one another so that the spaced apart terminating surfaces can function as bearing surfaces which lie flush against one another and provide for uniformity of the passages among the modules as discussed hereinafter.
  • a distance between the spaced apart terminating surfaces of the protruding end is also greater than a width of each of the walls adjacent thereto.
  • the passage means of the protruding end is specifically constructed and arranged for receiving an attaching member such as a cable as will be discussed hereinafter.
  • Each one of the protruding members ends of the yoke thereof is connected to two adjacent walls of the front, back, top and bottom walls.
  • the buoyant body is also provided with another set or second transitional surfaces 44 which interconnect each one of the yokes with one of the first and second sidewalls 23 , 24 in spaced relation.
  • the second transitional surfaces are preferably of a rectangular shape, and are connected to a respective one of the transitional ends of the yoke adjacent thereto.
  • Surfaces 44 include channels 32 which are aligned with like channels in sidewalls 22 , 24 .
  • a distance between a central longitudinal line of the passage means of the yoke and an end of the protruding end is preferably less than the distance measured between the central longitudinal line of the passage means and a connection to one of the second transitional surfaces.
  • Each one of the first transitional surfaces 26 is connected to one of the front, back, top and bottom walls, and to two of the second transitional surfaces 44 .
  • the front, back, top and bottom walls, the attaching means, the first and second transitional surfaces and the first and second sidewalls all have surfaces inclined to each adjacent surface.
  • This inclination is preferably 45° so that the surfaces provide a faceted envelope from which the attaching means or yokes protrude for connection as will be discussed hereinafter.
  • the faceted surfaces provide for the fracturing of the flowing water as it impinges on the module, and hence, the system.
  • a hollow watertight chamber is formed when the front, back, top and bottom walls, the attaching means, the first and second transition surfaces and the first and second sidewalls in spaced relation are connected as shown in particular in FIG. 2.
  • FIGS. 1 - 5 and 9 - 13 show modules formed of a pair of mating halves 46 , 48 having internal walls joined together and an external circumferential dividing groove 50 .
  • Each half includes the various surfaces, walls, passages and yokes with the ribbed protrusions, ridges, grooves and channels as indicated previously.
  • FIGS. 6 - 8 show modules of a unitary structure, with each individual module having the various front, rear, top, bottom, side, transition surfaces, passages and yokes incorporating the plurality of ribbed protrusions, ridges, grooves and channels as indicated above.
  • the buoyant body can have its mass and buoyancy adjusted by introducing fresh, brackish or salt water into an interior of the body, depending upon the chemistry, wave action and bottom contour in which the system is disposed.
  • Each pair of the mating halves is formed with an aperture means such as a port 52 , 54 in each one of two opposed top and bottom walls.
  • the modules are preferably arranged in the water so that the apertures are arranged in a top to bottom orientation to fill and/or drain each module as the conditions warrant.
  • a closure means such as a removable plug 56 , 58 is adapted to immediately seal a corresponding one of the parts.
  • the interior can also be filled with a marine grade floatation foam instead of water to provide added strength and make the modules unsinkable. The quantity of filling will determine the buoyancy of the modules and position in the water.
  • two mating module halves 46 , 48 incorporate locking devices to secure the halves together to form a complete assembled module.
  • Each half includes a circular central area 60 , 62 having respective lugs 64 , 66 on module 46 mating with openings 68 , 70 on module 48 , lugs 72 , 74 on module 48 mating with openings 76 , 78 on module 46 , and slots 80 , 82 on module 48 , and slots 84 , 86 on module 46 , linking the various elements together when assembled.
  • Respective nubs 88 , 90 on module 46 also engage sockets 92 , 94 on module 48
  • nubs 96 , 98 on module 48 engage sockets 100 , 102 on module 46 .
  • FIG. 11 shows how the halves are assembled by positioning module 48 , shown in dashed lines, over module 46 , and twisting the two together clockwise so that the respective openings and lugs and sockets and nubs are engaged.
  • FIG. 12 shows an alternate connection assembly for joining the two mating module halves together.
  • a convoluted internal wall section is provided on each of the module halves in place of the central area locking device of FIG. 11.
  • the wall includes nubs 104 and lugs 106 in module half 48 which engage sockets 108 and slots 110 in the module half 46 .
  • An intermediate area includes opposing convolutions 112 and abutting portions 114 .
  • FIG. 13 shows an enlarged portion of this embodiment.
  • the assembly is preferably formed of a suitable flexible plastic material which permits the mating sections to be engaged without difficulty.
  • each one of the modules in the system is arranged as shown in FIG. 2 such that preferably, the angle of incidence of the wave impacting the modules contacts the wall at which point the flow of water is fractured to be guided along the convoluted transition surfaces, resulting in eddies and vortexes.
  • the ribbed surfaces of the modules provide increased strength, a larger surface area, more friction, more drag and more resistance to waves than previous smooth faceted structures.
  • the assembly can be dismantled for movement to other areas and modules can be stacked for storage.
  • Attaching members preferably consist of marine rubber cables, such as resilient rodes used to interconnect the protruding ends of each one of the modules with, in some instances, four other separate and discrete modules.
  • the rodes are formed of marine rubber which is extremely resilient and strong to withstand thousands of pounds of force repeatedly being exerted on the system.
  • Stainless steel cables within a rubber layer may also be used.
  • the cables pass through the yoke passages to connect a plurality of linked modules in a desired pattern to form barriers of various shapes and sizes to accommodate varying wave conditions.
  • the diameters of the passages and cables may also be varied.
  • FIG. 1 provides an arrangement of avenues, streets and shafts through which the water is permitted to flow to impact and be fractured on the ribbed faceted surfaces of each successive module.
  • FIG. 2 shows the front wall, first transitional surface and two adjacent protruding ends intended to receive the oncoming flowing water to be fractured. This perspective is shown again in FIG. 1 with a plurality of the modules of the system. An arrow indicates movement of the flowing water from offshore to onshore.
  • the mounting of the modules with respect to each other to form the preferred pyramidal shape results in a plurality of the avenues running along a length of the system, and a plurality of the streets extending across the width of the system and transverse to the avenues.
  • the avenues and shafts for the passage of water are substantially rectangular in shape, while each one of the street passages is substantially octagonal in shape.
  • the marine rodes have resilient properties to secure the system to the anchoring assembly such as those distributed commercially as the Manta RayTM anchoring system.
  • the entire system resiliently rises and falls with the movement of the waves.
  • the system provides for a concertina effect. That is, after the flow of water has impacted and been fractured on the ribbed faceted surfaces and protruding ends of the modules, it moves through the avenues, streets and shafts and plazas.
  • the hydrodynamic force of the oncoming water causes the system to expand to receive the water under the concertina effect to catch or swell as much of the energy that remains in the oncoming wave.
  • the return resiliency of the system provides its own kinetic energy as the concertina effect collapses thereby further interfering with successive waves impacting on and entering the system.
  • the arrangement of the modules in layers by tying a plurality of modules together with a plurality of horizontal rodes is important to the invention.
  • the modules are connected to each other in three dimensions to provide the most impact upon the oncoming flowing water.
  • the system employs at least three rows of modules, i.e. a first primary horizontal row of modules connected to another module of a second horizontal row vertically disposed from the first horizontal row which in turn is connected to still another module of a third horizontal row.
  • a plurality of such systems are anchored offshore of a beach to extract energy from the flowing water and waves.
  • the arrangement of the systems can be in parallel columns, or in staggered rows. The latter is the preferable arrangement so that each one of the separate and discrete systems interferes with the wave action of one of the other systems.
  • the energy dissipating system of the present invention can be constructed and arranged as an assembly to react to hydrodynamic forces produced by waves.
  • Such a system consist of a plurality of interconnectible modules and the means to resiliently connect the modules, such as the attaching members, to enable the modules to spread when subjected to hydrodynamic forces produced by waves, and concentrate when the forces are reduced.
  • the anchoring assembly resiliently restrains displacement of the assembly urged by the buoyancy and hydrodynamic forces associated with the waves.
  • the modules are constructed to be assembled to thereby form vortexes between and among the modules.
  • the spaces i.e. the avenues, streets, shafts, and plazas, are arranged to form flow patterns for an impeded flow of the water through the assembly.
  • Each of the modules is constructed and arranged to coact with the other modules to form an impeded flow path about and among the modules such that the eddies and vortexes discussed above are formed.
  • the arrangement of the modules with respect to each other provides for a pumping action between and among the modules in reaction to the buoyancy of the modules and the hydrodynamic forces to which the assembly is exposed.
  • the resilient restraint of the displacement of the assembly can also be controlled by adjusting the mass and buoyancy of each module, and therefore the assembly.
  • the use of the elastomeric rodes secured to anchors in the sea floor permits each one of the assemblies to be restrained at a strategic location.
  • the anchoring of the assembly restrains the assembly to a locus at the strategic assembly. The locus can be adjusted upon selecting an elastomeric rode having a particular length and inherent resiliency.
  • the present invention also provides for a method of disrupting wave action prior to the waves contacting the shore and causing erosion.
  • the method is directed to forming an assembly or a system from a plurality of the modules, and then connecting the plurality of separate modules to be resilient in at least one dimension.
  • arranging a plurality of layers such that the layers are interconnected to each other, such as shown in FIG. 1 is preferred.
  • the modules are resiliently connected in a horizontal direction to enable spreading and concentration of the individual modules in response to hydrodynamic energy exerted by waves contacting the system.
  • the assembly is positioned and anchored to a locus at a select strategic location to interfere with the oncoming waves.
  • the buoyancy and mass of the assembly with respect to the wave action at the strategic location is also adjusted by adjusting the size and shape of the assembly and the position and number of separate modules.
  • Each one of the modules can be filled with air, foam, sea water, sand or marine concrete depending upon the frequency desired for the system, and will have an inertial mass of approximately 35,000 pounds.
  • the oncoming flow of water is forced to impact and be fractured upon the system as a heavily resistant filter, such as an energy filter.
  • the anchoring cables formed of marine rubber permit the system to rise with the surge of the waves and at a certain point resist the movement, thereby further fracturing the oncoming flow of water.
  • a system according to the present can be made into any size, depending upon the number of modules and the layering structuring employed. For example, for a system to measure 12′ wide ⁇ 10′ deep, approximately 51 of the modules will be required.
  • the horizontal rodes interconnect the protruding ends of the modules.
  • Locking caps are used to secure ends of the rodes at the spaced part terminating surfaces, which function as bearing surfaces discussed above.
  • the system is naturally buoyant and without fill will have a lifting capacity of in excess of 15,000 pounds in water.
  • a plurality of the systems are preferably placed in horizontal rows parallel to and in appropriate depth from the shore to create a flexible energy filter through which waves must pass to reach the shore. Under certain conditions, horizontal rows will be paralleled by a second or third horizontal row which will act as a layer defense in those environments where the wave activity is more vigorous or the shore is exposed to storms.
  • An uppermost layer of the system can be painted in an international color such as orange, to denote certain areas.
  • the system is constructed such that only approximately one layer of modules will extend from the water's surface, depending upon the salinity of the water.
  • the anchoring assembly is such that system can be uncoupled from its mooring and removed to a remote location where it can be used, repaired or replaced.
  • the modules may incorporate various colored or luminescent surfaces for identifying their location. They may also be employed as supporting structures for mounting platforms, signs and detection devices, or used as floating docks.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)
US10/002,601 2000-11-09 2001-11-01 Ribbed module for wave energy dispersion Abandoned US20020132539A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/002,601 US20020132539A1 (en) 2000-11-09 2001-11-01 Ribbed module for wave energy dispersion
AU2002350060A AU2002350060A1 (en) 2001-11-01 2002-10-30 Ribbed module for wave energy dispersion
PCT/US2002/034782 WO2003037592A2 (fr) 2001-11-01 2002-10-30 Module cannele pour la dispersion de l'energie des vagues
US10/868,117 US7527453B2 (en) 2000-11-09 2004-06-15 Ribbed module for wave energy dispersion

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US29/132,444 USD457969S1 (en) 2000-11-09 2000-11-09 Wave energy extraction module
US25936800P 2000-12-29 2000-12-29
US10/002,601 US20020132539A1 (en) 2000-11-09 2001-11-01 Ribbed module for wave energy dispersion

Related Parent Applications (1)

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US29/132,444 Continuation-In-Part USD457969S1 (en) 2000-11-09 2000-11-09 Wave energy extraction module

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US10/868,117 Continuation US7527453B2 (en) 2000-11-09 2004-06-15 Ribbed module for wave energy dispersion

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US10/868,117 Expired - Fee Related US7527453B2 (en) 2000-11-09 2004-06-15 Ribbed module for wave energy dispersion

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AU (1) AU2002350060A1 (fr)
WO (1) WO2003037592A2 (fr)

Cited By (4)

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US20040018055A1 (en) * 2002-04-06 2004-01-29 Wave Control Systems, Inc. Wave attenuator
US20080240858A1 (en) * 2006-12-23 2008-10-02 Tblocks Limited Assembly for dissipating wave energy through diffraction
US8256988B1 (en) * 2005-03-10 2012-09-04 Jose Cherem Haber Hurricane taming apparatus and method of use
WO2014193212A1 (fr) * 2013-05-30 2014-12-04 Canto Rincon José Système multifonctionnel de blocs de béton en forme de polypodes

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Publication number Priority date Publication date Assignee Title
US20040018055A1 (en) * 2002-04-06 2004-01-29 Wave Control Systems, Inc. Wave attenuator
US8256988B1 (en) * 2005-03-10 2012-09-04 Jose Cherem Haber Hurricane taming apparatus and method of use
US20080240858A1 (en) * 2006-12-23 2008-10-02 Tblocks Limited Assembly for dissipating wave energy through diffraction
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WO2014193212A1 (fr) * 2013-05-30 2014-12-04 Canto Rincon José Système multifonctionnel de blocs de béton en forme de polypodes

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Publication number Publication date
US7527453B2 (en) 2009-05-05
WO2003037592A2 (fr) 2003-05-08
US20050019098A1 (en) 2005-01-27
WO2003037592A3 (fr) 2004-02-12
AU2002350060A1 (en) 2003-05-12

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