### Resumé

Originalsprog | Engelsk |
---|---|

Titel | System Modeling and Optimization : Proceedings of the 12th IFIP Conference |

Redaktører | A. Prékopa, J. Szelezán, B. Strazicky |

Antal sider | 10 |

Forlag | Springer |

Publikationsdato | 1986 |

Sider | 876-885 |

ISBN (Trykt) | 3-540-16854-0 |

Status | Udgivet - 1986 |

Begivenhed | System Modeling and Optimization: IFIP - Budapest, Ungarn Varighed: 2 sep. 1985 → 6 sep. 1985 Konferencens nummer: 12 |

### Konference

Konference | System Modeling and Optimization |
---|---|

Nummer | 12 |

Land | Ungarn |

By | Budapest |

Periode | 02/09/1985 → 06/09/1985 |

Navn | Lecture Notes in Control and Information Sciences |
---|---|

Vol/bind | 84 |

ISSN | 0170-8643 |

### Fingerprint

### Emneord

- Structural Optimization
- Reliability Constraints

### Citer dette

*System Modeling and Optimization: Proceedings of the 12th IFIP Conference*(s. 876-885). Springer. Lecture Notes in Control and Information Sciences, Bind. 84

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*System Modeling and Optimization: Proceedings of the 12th IFIP Conference.*Springer, Lecture Notes in Control and Information Sciences, bind 84, s. 876-885, System Modeling and Optimization, Budapest, Ungarn, 02/09/1985.

**Structural Optimization with Reliability Constraints.** / Sørensen, John Dalsgaard; Thoft-Christensen, Palle.

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - Structural Optimization with Reliability Constraints

AU - Sørensen, John Dalsgaard

AU - Thoft-Christensen, Palle

PY - 1986

Y1 - 1986

N2 - During the last 25 years considerable progress has been made in the fields of structural optimization and structural reliability theory. In classical deterministic structural optimization all variables are assumed to be deterministic. Due to the unpredictability of loads and strengths of actual structures it is now widely accepted that structural problems are non-deterministic. Therefore, some of the variables have to be modelled as random variables/processes and a reliability-based design philosophy should be used, Comell [1], Moses [2], Ditlevsen [3] and Thoft-Christensen & Baker [ 4]. In this paper we consider only structures which can be modelled as systems of elasto-plastic elements, e.g. frame and truss structures. In section 2 a method to evaluate the reliability of such structural systems is presented. Based on a probabilistic point of view a modern structural optimization problem is formulated in section 3. The formulation is a natural extension of the commonly used formulations in determinstic structural optimization. The mathematical form of the optimization problem is briefly discussed. In section 4 two new optimization procedures especially designed for the reliability-based optimization problem are presented. In some examples in section 5 the optimization procedures are compared.

AB - During the last 25 years considerable progress has been made in the fields of structural optimization and structural reliability theory. In classical deterministic structural optimization all variables are assumed to be deterministic. Due to the unpredictability of loads and strengths of actual structures it is now widely accepted that structural problems are non-deterministic. Therefore, some of the variables have to be modelled as random variables/processes and a reliability-based design philosophy should be used, Comell [1], Moses [2], Ditlevsen [3] and Thoft-Christensen & Baker [ 4]. In this paper we consider only structures which can be modelled as systems of elasto-plastic elements, e.g. frame and truss structures. In section 2 a method to evaluate the reliability of such structural systems is presented. Based on a probabilistic point of view a modern structural optimization problem is formulated in section 3. The formulation is a natural extension of the commonly used formulations in determinstic structural optimization. The mathematical form of the optimization problem is briefly discussed. In section 4 two new optimization procedures especially designed for the reliability-based optimization problem are presented. In some examples in section 5 the optimization procedures are compared.

KW - Structural Optimization

KW - Reliability Constraints

KW - Structural Optimization

KW - Reliability Constraints

M3 - Article in proceeding

SN - 3-540-16854-0

T3 - Lecture Notes in Control and Information Sciences

SP - 876

EP - 885

BT - System Modeling and Optimization

A2 - Prékopa, A.

A2 - Szelezán, J.

A2 - Strazicky, B.

PB - Springer

ER -