OPTIMUM DESIGN OF STIFFENED CYLINDRICAL SHELLS WITH NATURAL FREQUENCY CONSTRAINTS.

Singiresu S Rao, E. S. Reddy

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The design optimization of axially loaded, simply supported stiffened cylindrical shells for minimum mass is considered. The design variables are thickness of shell wall, thicknesses and depths of rings and stringer, number/spacing of rings and stringers. Natural frequency, local and overall buckling strengths and direct stress constraints are considered in the design problems. Three different combinations of stiffeners are considered. In each case, the independent effects of behavior constraints are also studied. The optimum designs are achieved with one of the standard nonlinear constrained optimization techniques and few optimal solutions are checked for the satisfaction of Kuhn-Tucker.

Original languageEnglish
Pages (from-to)211-219
Number of pages9
JournalComputers and Structures
Volume12
Issue number2
DOIs
StatePublished - Aug 1 1980
Externally publishedYes

Fingerprint

Stringers
Cylindrical Shell
Natural Frequency
Natural frequencies
Stress Constraints
Ring
Constrained optimization
Constrained Optimization
Nonlinear Optimization
Buckling
Optimization Techniques
Spacing
Shell
Optimal Solution
Design
Optimum design
Standards
Design optimization

ASJC Scopus subject areas

  • Computer Science Applications
  • Computational Mechanics

Cite this

OPTIMUM DESIGN OF STIFFENED CYLINDRICAL SHELLS WITH NATURAL FREQUENCY CONSTRAINTS. / Rao, Singiresu S; Reddy, E. S.

In: Computers and Structures, Vol. 12, No. 2, 01.08.1980, p. 211-219.

Research output: Contribution to journalArticle

@article{4de55868097b4e1c811059bc8fb81348,
title = "OPTIMUM DESIGN OF STIFFENED CYLINDRICAL SHELLS WITH NATURAL FREQUENCY CONSTRAINTS.",
abstract = "The design optimization of axially loaded, simply supported stiffened cylindrical shells for minimum mass is considered. The design variables are thickness of shell wall, thicknesses and depths of rings and stringer, number/spacing of rings and stringers. Natural frequency, local and overall buckling strengths and direct stress constraints are considered in the design problems. Three different combinations of stiffeners are considered. In each case, the independent effects of behavior constraints are also studied. The optimum designs are achieved with one of the standard nonlinear constrained optimization techniques and few optimal solutions are checked for the satisfaction of Kuhn-Tucker.",
author = "Rao, {Singiresu S} and Reddy, {E. S.}",
year = "1980",
month = "8",
day = "1",
doi = "10.1016/0045-7949(80)90007-3",
language = "English",
volume = "12",
pages = "211--219",
journal = "Computers and Structures",
issn = "0045-7949",
publisher = "Elsevier Limited",
number = "2",

}

TY - JOUR

T1 - OPTIMUM DESIGN OF STIFFENED CYLINDRICAL SHELLS WITH NATURAL FREQUENCY CONSTRAINTS.

AU - Rao, Singiresu S

AU - Reddy, E. S.

PY - 1980/8/1

Y1 - 1980/8/1

N2 - The design optimization of axially loaded, simply supported stiffened cylindrical shells for minimum mass is considered. The design variables are thickness of shell wall, thicknesses and depths of rings and stringer, number/spacing of rings and stringers. Natural frequency, local and overall buckling strengths and direct stress constraints are considered in the design problems. Three different combinations of stiffeners are considered. In each case, the independent effects of behavior constraints are also studied. The optimum designs are achieved with one of the standard nonlinear constrained optimization techniques and few optimal solutions are checked for the satisfaction of Kuhn-Tucker.

AB - The design optimization of axially loaded, simply supported stiffened cylindrical shells for minimum mass is considered. The design variables are thickness of shell wall, thicknesses and depths of rings and stringer, number/spacing of rings and stringers. Natural frequency, local and overall buckling strengths and direct stress constraints are considered in the design problems. Three different combinations of stiffeners are considered. In each case, the independent effects of behavior constraints are also studied. The optimum designs are achieved with one of the standard nonlinear constrained optimization techniques and few optimal solutions are checked for the satisfaction of Kuhn-Tucker.

UR - http://www.scopus.com/inward/record.url?scp=0019049269&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0019049269&partnerID=8YFLogxK

U2 - 10.1016/0045-7949(80)90007-3

DO - 10.1016/0045-7949(80)90007-3

M3 - Article

VL - 12

SP - 211

EP - 219

JO - Computers and Structures

JF - Computers and Structures

SN - 0045-7949

IS - 2

ER -