Accession Number : ADA305261
Title : Manufacturing Methods and Technology Program for Stabilized Line of Sight Composite Gimbal.
Descriptive Note : Final rept.,
Corporate Author : WESTINGHOUSE DEFENSE AND ELECTRONICS CENTER BALTIMORE MD SYSTEMS DEVELOPMENT DIV
Personal Author(s) : Johnson, J. T. ; Lloyd, W. B. ; Grapes, T. F. ; Kolek, R. L. ; Zucker, R. S.
PDF Url : ADA305261
Report Date : DEC 1981
Pagination or Media Count : 114
Abstract : The program effectively applied graphite epoxy composite to an electro-optical gimbal system resulting in a lighter gimbal with higher inherent damping. In addition, the coefficient of thermal expansion of the composite gimbal is more closely matched to the stainless steel bearings used in the assembly than is the case for an aluminum gimbal. In the composite gimbal, weight was reduced by 1/3. The stiffness-to-weight ratio has been increased by a factor of two. The damping ratio has been improved by a factor of 4. The stiffness was designed to provide natural frequencies of 150 Hz or higher. The lowest measured resonance was 136 Hz for the first sample, which was dimensionally similar to the aluminum design.
Descriptors : *MANUFACTURING, *PRODUCTION ENGINEERING, *GIMBALS, STABILIZATION, METHODOLOGY, OPTICAL EQUIPMENT, RATIOS, STIFFNESS, DAMPING, STAINLESS STEEL, RESONANT FREQUENCY, ALUMINUM, COEFFICIENTS, THERMAL EXPANSION, WEIGHT, SIGHTS, BEARINGS, GRAPHITE EPOXY COMPOSITES.
Subject Categories : Couplers, Fasteners, and Joints
Mfg & Industrial Eng & Control of Product Sys
Distribution Statement : APPROVED FOR PUBLIC RELEASE