Finite Dynamic Elements and Modal Analysis
A general modal analysis scheme is derived for forced response that makes use of high accuracy modes computed by the dynamic element method. The new procedure differs from the usual modal analysis in that the modes are obtained from a power series expansion for the dynamic stiffness matrix that incl...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1993-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-1993-1208 |
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| _version_ | 1849304345624969216 |
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| author | N.J. Fergusson W.D. Pilkey |
| author_facet | N.J. Fergusson W.D. Pilkey |
| author_sort | N.J. Fergusson |
| collection | DOAJ |
| description | A general modal analysis scheme is derived for forced response that makes use of high accuracy modes computed by the dynamic element method. The new procedure differs from the usual modal analysis in that the modes are obtained from a power series expansion for the dynamic stiffness matrix that includes an extra dynamic correction term in addition to the static stiffness matrix and the consistent mass matrix based on static displacement. A cantilevered beam example is used to demonstrate the relative accuracies of the dynamic element and the traditional finite element methods. |
| format | Article |
| id | doaj-art-10f89963e2544ea8843f349ea33eaad4 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1993-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-10f89963e2544ea8843f349ea33eaad42025-08-20T03:55:45ZengWileyShock and Vibration1070-96221875-92031993-01-011217117610.3233/SAV-1993-1208Finite Dynamic Elements and Modal AnalysisN.J. Fergusson0W.D. Pilkey1Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, VA 22901, USADepartment of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, VA 22901, USAA general modal analysis scheme is derived for forced response that makes use of high accuracy modes computed by the dynamic element method. The new procedure differs from the usual modal analysis in that the modes are obtained from a power series expansion for the dynamic stiffness matrix that includes an extra dynamic correction term in addition to the static stiffness matrix and the consistent mass matrix based on static displacement. A cantilevered beam example is used to demonstrate the relative accuracies of the dynamic element and the traditional finite element methods.http://dx.doi.org/10.3233/SAV-1993-1208 |
| spellingShingle | N.J. Fergusson W.D. Pilkey Finite Dynamic Elements and Modal Analysis Shock and Vibration |
| title | Finite Dynamic Elements and Modal Analysis |
| title_full | Finite Dynamic Elements and Modal Analysis |
| title_fullStr | Finite Dynamic Elements and Modal Analysis |
| title_full_unstemmed | Finite Dynamic Elements and Modal Analysis |
| title_short | Finite Dynamic Elements and Modal Analysis |
| title_sort | finite dynamic elements and modal analysis |
| url | http://dx.doi.org/10.3233/SAV-1993-1208 |
| work_keys_str_mv | AT njfergusson finitedynamicelementsandmodalanalysis AT wdpilkey finitedynamicelementsandmodalanalysis |