TY - JOUR

T1 - Optimizations of parameters of a stiffened cylindrical shell

AU - Adamovich, I.A.

AU - Filippov, S.B.

PY - 2015

Y1 - 2015

N2 - Buckling under action of external lateral pressure of the cylindrical shell stiffened by identical rings with rectangular cross-section sections and a non-stiffened shell of a neutral surface having the same sizes and made of the same material is considered. It is supposed, that the stiffened and non-stiffened shell lose stability at identical critical pressure. Using the simple asymptotic formulas for critical pressure the approximate relations for calculation of optimal stiffened shell parameters corresponding to the minimal value of its weight are received in closed form. The examples of calculations of optimal parameters are presented. Results of the paper may be used at designing thin-walled structures.

AB - Buckling under action of external lateral pressure of the cylindrical shell stiffened by identical rings with rectangular cross-section sections and a non-stiffened shell of a neutral surface having the same sizes and made of the same material is considered. It is supposed, that the stiffened and non-stiffened shell lose stability at identical critical pressure. Using the simple asymptotic formulas for critical pressure the approximate relations for calculation of optimal stiffened shell parameters corresponding to the minimal value of its weight are received in closed form. The examples of calculations of optimal parameters are presented. Results of the paper may be used at designing thin-walled structures.

KW - stiffened cylindrical shell

KW - buckling

KW - asymptotic methods

KW - optimal design

U2 - 10.3103/S1063454115020028

DO - 10.3103/S1063454115020028

M3 - Article

VL - 48

SP - 102

EP - 108

JO - Vestnik St. Petersburg University: Mathematics

JF - Vestnik St. Petersburg University: Mathematics

SN - 1063-4541

IS - 2

ER -