| Autor: |
Hu, B.-G., Dokainish, M. A., Mansour, W. M. |
| Zdroj: |
Journal of Vibration and Acoustics; April 1995, Vol. 117 Issue: 2 p226-231, 6p |
| Abstrakt: |
The conventional Modal Strain Energy method (MSE is briefly discussed. Several indices are proposed to characterize a viscoelastically damped system. An Overall Error Index is proposed to assess the accuracy of the solution. A Modified MSE method is developed for a better evaluation of modal damping. Instead of neglecting the damping stiffness matrix in the determination of the eigenvectors, as is the case in the conventional MSE method, the authors used a weighted matrix to solve a real eigenvalue problem. With such modification the estimation of the modal damping is often improved. Numerical simulation of multi degree-of-freedom systems are reported using the proposed Modified MSE method and the indices. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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