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IMPROVED PERFORMANCE OF TONPILZ-TYPE TRANSDUCER ELEMENTS CAN RESULT FROM (1)…

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
904
Program Year/Program:
1984 / SBIR
Agency Tracking Number:
904
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
B-k Dynamics Inc
247 Shaw Street New London, CT 06320
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1984
Title: IMPROVED PERFORMANCE OF TONPILZ-TYPE TRANSDUCER ELEMENTS CAN RESULT FROM (1) INCREASING THE AREA OF THE RADIATING FACE AND (2) DECREASING THE MASS OF THE RADIATING HEAD.
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

IMPROVED PERFORMANCE OF TONPILZ-TYPE TRANSDUCER ELEMENTS CAN RESULT FROM (1) INCREASING THE AREA OF THE RADIATING FACE AND (2) DECREASING THE MASS OF THE RADIATING HEAD. HOWEVER, SUCH IMPROVEMENT IS LIMITED BY THE INTRODUCTION OF A FLEXURE MODE, WITH THE OUTER RING MOVING AT A DIFFERENT VELOCITY AND PHASE FROM THE INNER AREA OF THE HEAD-MASS. THE UNDESIRABLE RESULT IS A BI-MODAL RESPONSE WITH, GENERALLY, A REDUCTION IN OUTPUT OF THE DESIGN FREQUENCY. IN ORDER TO MINIMIZE THIS EFFECT, THE HEAD-MASS SHOULD HAVE BOTH LOW DENSITY AND HIGH STIFFNESS. THE DESIGN "FIGURE-OF-MERIT" FOR HEAD-MASS MATERIAL IS THE SPECIFIC MODULUS. IT IS SHOWN THAT BERYLLIUM HAS THE HIGHEST SPECIFIC MODULII OF METALS, BEING MORE THAN FIVE TIMES THE SPECIFIC MODULII OF SUCH COMMON HEAD-MASS MATERIALS AS STAINLESS STEEL AND ALUMINUM. A SIMPLE PROGRAM IS PROPOSED TO COMPARE THE PERFORMANCE OF TONPILZ ELEMENTS WITH HEADMASSES OF BERYLLIUM, STAINLESS STEEL, AND ALUMINUM.

Principal Investigator:

James w. fitzgerald
234437990

Business Contact:

Small Business Information at Submission:

B-k Dynamics Inc
247 Shaw Street New London, CT 06320

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No