Use of Response Surface Metamodels for Identification of Stiffness and Damping Coefficients in a Simple Dynamic System
Metamodels have been used with success in many areas of engineering for decades but only recently in the field of structural dynamics. A metamodel is a fast running surrogate that is typically used to aid an analyst or test engineer in the fast and efficient exploration of the design space. Response...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2005-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2005/484283 |
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| author | A.C. Rutherford D.J. Inman G. Park F.M. Hemez |
| author_facet | A.C. Rutherford D.J. Inman G. Park F.M. Hemez |
| author_sort | A.C. Rutherford |
| collection | DOAJ |
| description | Metamodels have been used with success in many areas of engineering for decades but only recently in the field of structural dynamics. A metamodel is a fast running surrogate that is typically used to aid an analyst or test engineer in the fast and efficient exploration of the design space. Response surface metamodels are used in this work to perform parameter identification of a simple five degree of freedom system, motivated by their low training requirements and ease of use. In structural dynamics applications, response surface metamodels have been utilized in a forward sense, for activities such as sensitivity analysis or uncertainty quantification. In this study a polynomial response surface model is developed, relating system parameters to measurable output features. Once this relationship is established, the response surface is used in an inverse sense to identify system parameters from measured output features. |
| format | Article |
| id | doaj-art-8625affe362641ecb3b90af94e88764c |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2005-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-8625affe362641ecb3b90af94e88764c2025-02-03T06:14:04ZengWileyShock and Vibration1070-96221875-92032005-01-0112531733110.1155/2005/484283Use of Response Surface Metamodels for Identification of Stiffness and Damping Coefficients in a Simple Dynamic SystemA.C. Rutherford0D.J. Inman1G. Park2F.M. Hemez3Los Alamos National Laboratory, ESA-WR, M/S P946 Los Alamos, NM 87544, USACenter for Intelligent Materials Systems and Structures, Mechanical Engineering Department, Virginia Polytechnic Institute and State University, M/C 0261 Blacksburg, VA 24061, USALos Alamos National Laboratory, ESA-WR, M/S P946 Los Alamos, NM 87544, USALos Alamos National Laboratory, ESA-WR, M/S P946 Los Alamos, NM 87544, USAMetamodels have been used with success in many areas of engineering for decades but only recently in the field of structural dynamics. A metamodel is a fast running surrogate that is typically used to aid an analyst or test engineer in the fast and efficient exploration of the design space. Response surface metamodels are used in this work to perform parameter identification of a simple five degree of freedom system, motivated by their low training requirements and ease of use. In structural dynamics applications, response surface metamodels have been utilized in a forward sense, for activities such as sensitivity analysis or uncertainty quantification. In this study a polynomial response surface model is developed, relating system parameters to measurable output features. Once this relationship is established, the response surface is used in an inverse sense to identify system parameters from measured output features.http://dx.doi.org/10.1155/2005/484283 |
| spellingShingle | A.C. Rutherford D.J. Inman G. Park F.M. Hemez Use of Response Surface Metamodels for Identification of Stiffness and Damping Coefficients in a Simple Dynamic System Shock and Vibration |
| title | Use of Response Surface Metamodels for Identification of Stiffness and Damping Coefficients in a Simple Dynamic System |
| title_full | Use of Response Surface Metamodels for Identification of Stiffness and Damping Coefficients in a Simple Dynamic System |
| title_fullStr | Use of Response Surface Metamodels for Identification of Stiffness and Damping Coefficients in a Simple Dynamic System |
| title_full_unstemmed | Use of Response Surface Metamodels for Identification of Stiffness and Damping Coefficients in a Simple Dynamic System |
| title_short | Use of Response Surface Metamodels for Identification of Stiffness and Damping Coefficients in a Simple Dynamic System |
| title_sort | use of response surface metamodels for identification of stiffness and damping coefficients in a simple dynamic system |
| url | http://dx.doi.org/10.1155/2005/484283 |
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