Accession Number : AD0711383
Title : PARAMETRIC STUDY OF NATURAL FREQUENCIES OF SKIN-STRINGER STRUCTURE.
Descriptive Note : Technical rept.,
Corporate Author : DAYTON UNIV OHIO RESEARCH INST
Personal Author(s) : McDaniel,T. J.
Report Date : JUL 1970
Pagination or Media Count : 90
Abstract : The results of a parametric study of the natural frequencies of a row of skin-stringer structures are contained in this report. Typical aircraft structures with hat-section, Z-section, or milled stringers were considered. The effect on the natural frequencies of parametric variation of stringer spacing, distance between frames, thickness of the covering skin, and material properties of the structure are tabulated. These results were obtained from a delta-matrix procedure which is developed from a transfer matrix analysis of the skin-stringer structure. Improvements in the transfer matrix analysis of the structure are also developed. (Author)
Descriptors : (*AIRFRAMES, VIBRATION), STRUCTURAL MEMBERS, BEAMS(STRUCTURAL), REINFORCING MATERIALS, CONFIGURATION, RESONANT FREQUENCY, DAMPING, MATRICES(MATHEMATICS), EQUATIONS OF MOTION, MATHEMATICAL ANALYSIS
Subject Categories : Aircraft
Distribution Statement : APPROVED FOR PUBLIC RELEASE