### Abstract

Original language | Undefined |
---|---|

Title of host publication | The Sixteenth International Congress on Sound and Vibration |

Editors | D. Bimor, M.I. Michalczyk, M. Pawelczyk, J. Cieslik |

Place of Publication | Poland |

Publisher | International Institute of Acoustics and Vibration |

Pages | 1-8 |

ISBN (Print) | 978-83-60716-72-4 |

Publication status | Published - 2009 |

Event | 16th International Congress on Sound and Vibration, ICSV 2009 - Kraków, Poland Duration: 5 Jul 2009 → 9 Jul 2009 Conference number: 16 https://www.iiav.org/icsv16/ |

### Conference

Conference | 16th International Congress on Sound and Vibration, ICSV 2009 |
---|---|

Abbreviated title | ICSV |

Country | Poland |

City | Kraków |

Period | 5/07/09 → 9/07/09 |

Internet address |

### Keywords

- IR-69680
- METIS-262737

### Cite this

*The Sixteenth International Congress on Sound and Vibration*(pp. 1-8). Poland: International Institute of Acoustics and Vibration.

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*The Sixteenth International Congress on Sound and Vibration.*International Institute of Acoustics and Vibration, Poland, pp. 1-8, 16th International Congress on Sound and Vibration, ICSV 2009, Kraków, Poland, 5/07/09.

**A Hybrid Design Optimization Method using Enriched Craig-Bampton Approach (cd-rom).** / Akcay-Perdahcioglu, Didem; Ellenbroek, Marcellinus Hermannus Maria; de Boer, Andries.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - A Hybrid Design Optimization Method using Enriched Craig-Bampton Approach (cd-rom)

AU - Akcay-Perdahcioglu, Didem

AU - Ellenbroek, Marcellinus Hermannus Maria

AU - de Boer, Andries

PY - 2009

Y1 - 2009

N2 - A hybrid design optimization method is presented which combines a number of techniques such as Component Mode Synthesis (CMS), Design of Computer Experiments and Neural Networks for surrogate modeling with Genetic Algorithms and Sequential Quadratic Programming for optimization. In the method, the FE analysis is decomposed and reduced by a well-known CMS technique called the Craig-Bampton method. Since the optimization method requires CMS calculations of the updated model at each of its iterations due to the changes in the design variables, one can either reuse the reduction basis of the initial components or compute new reduction basis for the condensation of the system matrices. The first option usually leads to inaccurate results and the last one increases the omputation time. In the method, instead of using one of these options, the Enriched Craig-Bampton method, proposed by Masson et al., is employed for efficient optimization. New basis for the modified components are generated by extending the corresponding initial reduction basis with a set of static residual vectors which are calculated using prior knowledge of the initial component designs. Thus, time consuming complete component analyzes are prevented. A theoretical test problem is used for the demonstration of the method.

AB - A hybrid design optimization method is presented which combines a number of techniques such as Component Mode Synthesis (CMS), Design of Computer Experiments and Neural Networks for surrogate modeling with Genetic Algorithms and Sequential Quadratic Programming for optimization. In the method, the FE analysis is decomposed and reduced by a well-known CMS technique called the Craig-Bampton method. Since the optimization method requires CMS calculations of the updated model at each of its iterations due to the changes in the design variables, one can either reuse the reduction basis of the initial components or compute new reduction basis for the condensation of the system matrices. The first option usually leads to inaccurate results and the last one increases the omputation time. In the method, instead of using one of these options, the Enriched Craig-Bampton method, proposed by Masson et al., is employed for efficient optimization. New basis for the modified components are generated by extending the corresponding initial reduction basis with a set of static residual vectors which are calculated using prior knowledge of the initial component designs. Thus, time consuming complete component analyzes are prevented. A theoretical test problem is used for the demonstration of the method.

KW - IR-69680

KW - METIS-262737

M3 - Conference contribution

SN - 978-83-60716-72-4

SP - 1

EP - 8

BT - The Sixteenth International Congress on Sound and Vibration

A2 - Bimor, D.

A2 - Michalczyk, M.I.

A2 - Pawelczyk, M.

A2 - Cieslik, J.

PB - International Institute of Acoustics and Vibration

CY - Poland

ER -