PaintSquare.com


The First Word in Protective & Marine Coatings

A Product of Technology Publishing / PaintSquare
JPCL | PaintSquare News | Durability + Design | Paint BidTracker

Marine Industry Coating Systems: Selecting and Sourcing

Paint and Coatings Industry News

Main News Page


Coating Cloaks Subs in Sound of Silence

Friday, June 8, 2012

More items for Coating Materials

Comment | More

New coating-based cloaking technology could make U.S. Navy subs and unmanned undersea vehicles even stealthier, developers say.

The underwater acoustic-evading technology creates a coating that features broadband, passive waveguides that redirect acoustic energy around an object, “rendering it nearly undetectable” to active sonar, Aviation Week Intelligence Network (AWIN) reports.

 The Virginia (SSN 774) is an advanced stealth nuclear-powered submarine for the post-Cold War era. Clad in acoustic-evading cloaking, it could be even stealthier, developers say.

 U. S. Navy

The Virginia (SSN 774) is an advanced stealth nuclear-powered submarine for the post-Cold War era. Clad in acoustic-evading cloaking, it could be even stealthier, developers say.

The project is in the second phase of development, supported by a $446,833 Navy Small Business Innovation Research (SBIR) grant awarded in FY 2010.

Acoustic Metamaterials

Phase II of the project, called “Metamaterials for Acoustic Cloaking,” is aimed at formulating, manufacturing and testing prototype cloaking materials that were designed in Phase I using computational simulation technology.

Acoustic metamaterials are artificially fabricated materials designed to control, direct and manipulate sound in the form of sonic, infrasonic, or ultrasonic waves, as they might occur in gases, liquids and solids.

The work is being performed by New York-based Weidlinger Associates Inc., a structural engineering firm that specializes in building and transportation design, applied science research, and physical security.

‘Metal Water’

The technology involves “carving up and altering” aluminum to give it “elastic properties”—or what the company calls “metal water,” principal investigator Jeffrey Cipolla said June 4 in a presentation at the 2012 Navy Opportunity Forum outside Washington, D.C. The forum offered a preview of more than 250 Navy-supported technologies in development.

The coatings “decouple” structural vibrations from the water, reducing passive sonar signature, AWIN reported.  The cloak “suppresses all scatters and reflected waves,” Cipolla said.

But don’t grab your paint brush yet. This is no spray-on coating, Cipolla told AWIN. “It’s going to be a structure that has to be attached to the sub.”

And that structure won’t weigh lightly—a significant consideration when evaluating the technology for Navy vessels.

Said Cipolla: “Any cloak technology worth its salt is going to be heavy.”

   

Tagged categories: Marine; Marine Coatings; Research; Shipyards; U.S. Navy

Comment Join the Conversation:

Sign in to our community to add your comments.

Sherwin-Williams
Nova-Plate® 325

• Extends Service Life
• Single Coat Application
• Cure to Service in 24 Hours


Wasser High-Tech Coatings Inc.
Wasser Coatings Protect

some of the most important bridges in the country; learn about our NEPCOAT-approved system and our entire range of MCU & Polyurea coatings. 1-800-627-2968 www.wassercoatings.com


Mitsubishi Gas Chemical America
Performance Amine 1,3-BAC

A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.


Polyval Coatings
Polyflex® Polyurea Linings

exhibit outstanding versatility in use; providing abrasion resistance, superior seamless waterproofing and high-chem corrosion protection. www.polyflexlinings.com


Keizer Technologies, Inc.
Fast • Safe • Clean • Silent

The innovative RPR Induction Disbonder, the world’s fastest, safest, cleanest and very cost effective method for removing paint and coatings from steel surfaces.


Hempel (USA) Inc.
HEMPEL PROTECTIVE COATINGS

Efficient systems and high quality products to reduce your maintenance costs. Visit Hempel Protective for more information.


International Paint LLC

International Paint Engineered Coatings

Learn about our solutions for:
  • Structural Steel
  • Piping & Equipment
  • Storage Tanks
  • Pressure Vessels
  • Secondary Containment

  •  
     
     
    Technology Publishing

    The Technology Publishing Network

    The Journal of Protective Coatings & Linings (JPCL) PaintSquare
    Durability + Design Paint BidTracker JPCL Europe

     
    EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
    REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
    MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
     

    © Copyright 2000-2014, Technology Publishing / PaintSquare, All rights reserved
    2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com