An FFT-Based Spectral Analysis Method for Linear Discrete Dynamic Systems with Non-Proportional Damping
This paper proposes a fast Fourier transforms (FFT)-based spectral analysis method for the dynamic analysis of linear discrete dynamic systems which have non-proportional viscous damping and are subjected to non-zero initial conditions. To evaluate the proposed FFT-based spectral analysis method, th...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2006-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2006/537523 |
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| _version_ | 1832562329086066688 |
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| author | Jooyong Cho Usik Lee |
| author_facet | Jooyong Cho Usik Lee |
| author_sort | Jooyong Cho |
| collection | DOAJ |
| description | This paper proposes a fast Fourier transforms (FFT)-based spectral analysis method for the dynamic analysis of linear discrete dynamic systems which have non-proportional viscous damping and are subjected to non-zero initial conditions. To evaluate the proposed FFT-based spectral analysis method, the forced vibration of a three degree-of-freedom (DOF) system is considered as an illustrative problem. The accuracy of the proposed FFT-based spectral analysis method is evaluated by comparing the forced vibration responses obtained by the present FFT-based spectral analysis method with those obtained by using the well-known Runge-Kutta method and modal analysis method. |
| format | Article |
| id | doaj-art-9c0aee838faf47e3802b7f8c85481832 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2006-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-9c0aee838faf47e3802b7f8c854818322025-02-03T01:22:54ZengWileyShock and Vibration1070-96221875-92032006-01-0113659560610.1155/2006/537523An FFT-Based Spectral Analysis Method for Linear Discrete Dynamic Systems with Non-Proportional DampingJooyong Cho0Usik Lee1Department of Mechanical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, South KoreaDepartment of Mechanical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, South KoreaThis paper proposes a fast Fourier transforms (FFT)-based spectral analysis method for the dynamic analysis of linear discrete dynamic systems which have non-proportional viscous damping and are subjected to non-zero initial conditions. To evaluate the proposed FFT-based spectral analysis method, the forced vibration of a three degree-of-freedom (DOF) system is considered as an illustrative problem. The accuracy of the proposed FFT-based spectral analysis method is evaluated by comparing the forced vibration responses obtained by the present FFT-based spectral analysis method with those obtained by using the well-known Runge-Kutta method and modal analysis method.http://dx.doi.org/10.1155/2006/537523 |
| spellingShingle | Jooyong Cho Usik Lee An FFT-Based Spectral Analysis Method for Linear Discrete Dynamic Systems with Non-Proportional Damping Shock and Vibration |
| title | An FFT-Based Spectral Analysis Method for Linear Discrete Dynamic Systems with Non-Proportional Damping |
| title_full | An FFT-Based Spectral Analysis Method for Linear Discrete Dynamic Systems with Non-Proportional Damping |
| title_fullStr | An FFT-Based Spectral Analysis Method for Linear Discrete Dynamic Systems with Non-Proportional Damping |
| title_full_unstemmed | An FFT-Based Spectral Analysis Method for Linear Discrete Dynamic Systems with Non-Proportional Damping |
| title_short | An FFT-Based Spectral Analysis Method for Linear Discrete Dynamic Systems with Non-Proportional Damping |
| title_sort | fft based spectral analysis method for linear discrete dynamic systems with non proportional damping |
| url | http://dx.doi.org/10.1155/2006/537523 |
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