SCALING OF LARGE SPACE STRUCTURE JOINTS

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$49,949.00
Award Year:
1987
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
5703
Agency Tracking Number:
5703
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Csa Engineering Inc (Currently CSA Engineering, Inc.)
560 San Antonio Rd - Ste 101, Palo Alto, CA, 94306
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
DAVID A KIENHOLZ
(415) 494-7351
Business Contact:
() -
Research Institution:
n/a
Abstract
A PROGRAM IS PROPOSED TO INVESTIGATE METHODS FOR PRODUCING SUBSCALE TRUSS JOINTS WITH STIFFNESS AND DAMPING PROPERTIES SUCH THAT THEY MAINTAIN DYNAMIC SIMILITUDE WITH THEIR FULL-SCALE COUNTERPARTS. THAT IS, THE LOSS FACTORS OF THE MODEL AND PROTOTYPE ARE EQUAL AND THEIR LINEAR STIFFNESS ARE IN THE RATIO R(E)R(L). R(E) AND R(L) ARE RESPECTIVELY THE MODEL-TO-PROTOTYPE RATIOS OF MATERIAL ELASTIC MODULI AND LENGTHS. A DEMONSTRATION EXERCISE WILL BE ATTEMPTED TO SHOW THAT SIMILITUDE CAN BE ACHIEVED FOR A SELECTED JOINT DESIGN BY MEANS WHICH ARE CHEAPER AND MORE PRACTICAL THAN EXACT GEOMETRIC PROPORTIONALITY. STRUCTURAL OPTIMIZATION METHODS AND SOFTWARE WILL BE USED TO DESIGN A SUBSCALE JOINT THAT HAS SPECIFIED PROPERTIES, BUT IS SIMPLER AND CHEAPER IN CONSTRUCTION THAN A MINIATURE REPLICA. STIFFNESS AND LOSS FACTOR WILL BE MEASURED FOR THE FULL-SCALE PROTOTYPE AND SUBSCALE MODEL.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government