Award Data

"We propose a directional, broadband, highly efficient underwater acoustic transducer using a baffled cylinder made out from piezoelectric single crystals. The prospective application areas will be for an underwater acoustic modem communication andAutonomous Underwater Vehicles (AUV), in which high efficiency of the transducer system is required due to the limited energy availability (battery) an ...

"This proposal is for the development of a high sensitivity pressure gradient acoustic motion sensor (accelerometer) of the flexural plate type using piezoelectric single crystals. The pressure gradient acoustic motion sensor is based on flexural plateelements operating below resonance in the accelerometer mode. The high piezoelectric coefficients for single crystals is ideal for increasing the ...

"The success or failure of military operations increasingly depends on situation awareness. Critical to situation awareness is the knowledge of the precise position and heading of enemy weaponry and personnel. There is a need for navigational systemsindependent of external sources and signals that would provide information about the position or movement of Unmanned Air Vehicles (UAV) used to mon ...

"Giant magnetostrictive materials, specifically the alloys of TERFENOL-D possess a high energy density that enables compact, high power, broad-band sources and similar, high authority actuators for use in several different military and commercialapplications. Current manufacturing techniques, namely the ETREMA Crystal Growth (ECG) process, yield polycrystalline materials with a preferential cryst ...

This new, reliable fastener will utilize the hole preparation designed for the existing fastener used in panels on the V-22 aircraft. It will utilize a retaining ring that allows positive captivation and holdout feature in the new stud assembly, whichwill solve the existing problem of stud retention and retraction. The nature of this new design will produce a rugged fastener that performs under ...

"This SBIR Phase II project involves the development, testing and integration of a submersible solvent extraction module (SubSEM), tested in an SBIR Phase I feasibility study, with a miniature optical analytical detection system for the continuous sampling,pre-concentration, and chemical analysis of TNT present at ultra-trace concentration levels in seawater. The integrated underwater sampling and ...

"Shipboard landings of V/STOL aircraft have identified both unique dynamic interface issues and the need for an accurate simulation module for practicing shipboard operations. The unsteady, unpredictable air wake generated by large ships presents problemsto rotorcraft pilots because it can cause the vehicle to become unstable. A flight simulator for shipboard operations would be invaluable to roto ...

"Shipboard landings of JSF, AV-8B and Bell-Boeing's V22 have identified unique dynamicinterface issues and the critical need for an accurate and efficient technique forsimulating wind-over-deck situations. In this research, a novel approach is proposedwherein the flowfield of the ship, its superstructure and the complete aircraft aresolved using a coupled viscous flow solver for various relative w ...