Accession Number:

ADA346254

Title:

Summary of Fy 97 Work on Multipore Suction Techniques

Descriptive Note:

Corporate Author:

COASTAL SYSTEMS STATION PANAMA CITY FL

Personal Author(s):

Report Date:

1997-10-01

Pagination or Media Count:

11.0

Abstract:

Non-adhesive attachment systems are used by abalone, octopus, and other gastropods shellfish to attach and move securely over surfaces of virtually any condition or roughness using dozens or hundreds of small suction cups. This effort complements adhesive attachment research by trying to synthesize the abalone system, creating a nonadhesive alternative for attaching equipment to surfaces underwater. The proposed embodiment uses a urethane composite material basically formed as a honeycomb with flexible yet somewhat stiff walls with each pore filled with an extremely soft material see Figure 1. Embedded in the soft core of each honeycomb would be a strand of muscle wire titanium nickel Ti-Ni alloy that would pull a small vacuum under electrical stimulation. A further improvement that was proposed, should the basic idea proveuseful, would be to develop a smart system which would use a strain sensor embedded in each pore to detect vacuum. The system would control the suction of each pore by using a releaseretry pump loop for those cells not holding a vacuum.

Subject Categories:

  • Biology
  • Adhesives, Seals and Binders
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE