Minimum-Weight Design of Stiffened Cylinders under Axial Compression

A procedure is outlined by which one may design a stiffened circular cylindrical shell under a given uniform axial compression with minimum weight By judicious choice of the objective function and proper grouping of the parameters involved, the solution is accomplished by separation into 2 phases: the "optimization" phase and the "design" phase. The "optimization" phase yields design charts, which are then used in the "design" phase to arrive at the minimum weight configuration. A critical review of previous investigations and a comparison with their resulting configurations are presented. The stiffener geometry used in this comparison is rectangular, because it represents the only configuration which has been dealt with to some degree of success in the past.

[1]  A. B. Burns Optimum, Axially Compressed, Foam- Core Sandwich Cylinders , 1966 .

[2]  John A. Nelder,et al.  A Simplex Method for Function Minimization , 1965, Comput. J..

[3]  Variddhi Ungbhakorn,et al.  Minimum weight design of fuselage type stiffened circular cylindrical shells subject to uniform axial compression , 1974 .

[4]  L. A. Schmit,et al.  Structural synthesis of a stiffened cylinder , 1968 .

[5]  T. P. Kicher,et al.  A REPORT ON A STRUCTURAL SYNTHESIS CAPABILITY FOR INTEGRALLY STIFFENED WAFFLE PLATES , 1963 .

[6]  Hans H. Bleich,et al.  Buckling strength of metal structures , 1952 .

[7]  R. F. Crawford,et al.  MINIMUM WEIGHT POTENTIALS FOR STIFFENED PLATES AND SHELLS , 1963 .

[8]  A. B. Burns Structural optimization of axially compressed cylinders, consideringring-stringer eccentricity effects. , 1966 .

[9]  G. Gerard,et al.  Minimum weight design of stiffened cylinders , 1970 .

[10]  J. M. T. Thompson,et al.  On the optimum design of thin-walled compression members , 1972 .

[11]  L. R. Jackson,et al.  Optimum mass-strength analysis for orthotropic ring-stiffened cylinders under axial compression , 1972 .

[12]  W. J. Stroud,et al.  Minimum-weight stiffened shells with slight meridional curvature designed to support axial compressive loads. , 1969 .

[13]  G. A. Cohen OPTIMUM DESIGN OF TRUSS-CORE SANDWICH CYLINDERS UNDER AXIAL COMPRESSION , 1963 .

[14]  C. L. Amba-Rao,et al.  A Direct Search Algorithm for Automated Optimum Structural Design , 1971 .

[15]  G. Simitses A note on the general instability of eccentrically stiffened cylinders. , 1967 .

[16]  A. H. Chilver Thin-walled steel structures: Edited by K. C. Rockey and H. V. Hill 600 pp., 130s. Crosby Lockwood, 1969. , 1970 .

[17]  D. L. Block Minimum weight design of axially compressed ring and stringer stiffened cylindrical shells , 1971 .

[18]  R. Haftka,et al.  BUCKLING OF DISCRETELY RING STIFFENED CYLINDRICAL SHELLS , 1967 .

[19]  F. I. Niordson,et al.  A review of optimal structural design , 1973 .

[20]  T. Kicher,et al.  Structural synthesis of integrally stiffened cylinders. , 1967 .

[21]  B. O. Almroth,et al.  Structural optimization of axially compressed, ring-stringer stiffened cylinders. , 1966 .

[22]  D. S. Hague,et al.  Application of multivariable search techniques to structural design optimization , 1972 .

[23]  J. Skogh,et al.  Combined loads minimum weight analysis of stiffened plates and shells. , 1966 .

[24]  G. Gerard,et al.  Optimum structural design concepts for aerospace vehicles. , 1966 .