### Abstract

Highly precise structural analysis of tension-stabilized space reflectors using geometrically nonlinear finite-element (FE) model usually requires accurate knowledge of the design parameters. However, internal forces in the deformed configuration or temporal change of stiffness parameters are usually unable to be measured; thus, accurate numerical modeling of a tension-stabilized structure is difficult. The present paper describes a methodology to construct a high-fidelity FE model of high-precision gossamer structures by applying a conventional method of FE model updating to a geometrically nonlinear FE analysis. Using the FE model updating methodology, an accurate FE model can be constructed through the estimation of unmeasured parameters. In this study, a simple tension-stabilized beam structure is analyzed for demonstration of the concept.

Original language | English |
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Title of host publication | 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012 |

Publication status | Published - 2012 Dec 1 |

Externally published | Yes |

Event | 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012 - Honolulu, HI Duration: 2012 Apr 23 → 2012 Apr 26 |

### Other

Other | 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012 |
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City | Honolulu, HI |

Period | 12/4/23 → 12/4/26 |

### Fingerprint

### ASJC Scopus subject areas

- Aerospace Engineering
- Mechanical Engineering
- Materials Science(all)
- Surfaces and Interfaces

### Cite this

*53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012*

**Finite-element model updating for highly precise tension-stabilized space reflectors.** / Sakamoto, Hiraku; Kogiso, Nozomu; Tanaka, Hiroaki; Ishimura, Kosei; Okuma, Masaaki.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012.*53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012, Honolulu, HI, 12/4/23.

}

TY - GEN

T1 - Finite-element model updating for highly precise tension-stabilized space reflectors

AU - Sakamoto, Hiraku

AU - Kogiso, Nozomu

AU - Tanaka, Hiroaki

AU - Ishimura, Kosei

AU - Okuma, Masaaki

PY - 2012/12/1

Y1 - 2012/12/1

N2 - Highly precise structural analysis of tension-stabilized space reflectors using geometrically nonlinear finite-element (FE) model usually requires accurate knowledge of the design parameters. However, internal forces in the deformed configuration or temporal change of stiffness parameters are usually unable to be measured; thus, accurate numerical modeling of a tension-stabilized structure is difficult. The present paper describes a methodology to construct a high-fidelity FE model of high-precision gossamer structures by applying a conventional method of FE model updating to a geometrically nonlinear FE analysis. Using the FE model updating methodology, an accurate FE model can be constructed through the estimation of unmeasured parameters. In this study, a simple tension-stabilized beam structure is analyzed for demonstration of the concept.

AB - Highly precise structural analysis of tension-stabilized space reflectors using geometrically nonlinear finite-element (FE) model usually requires accurate knowledge of the design parameters. However, internal forces in the deformed configuration or temporal change of stiffness parameters are usually unable to be measured; thus, accurate numerical modeling of a tension-stabilized structure is difficult. The present paper describes a methodology to construct a high-fidelity FE model of high-precision gossamer structures by applying a conventional method of FE model updating to a geometrically nonlinear FE analysis. Using the FE model updating methodology, an accurate FE model can be constructed through the estimation of unmeasured parameters. In this study, a simple tension-stabilized beam structure is analyzed for demonstration of the concept.

UR - http://www.scopus.com/inward/record.url?scp=84881390616&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84881390616&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9781600869372

BT - 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012

ER -