Accuracy of the modal strain energy method

Alessandra Zambrano; Jose A. Inaudi; James M. Kelly

doi:10.1117/12.174104

1 May 1994 Accuracy of the modal strain energy method

Alessandra Zambrano, Jose A. Inaudi, James M. Kelly

Proceedings Volume 2193, Smart Structures and Materials 1994: Passive Damping; (1994) https://doi.org/10.1117/12.174104
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

The modal strain energy (MSE) method is an approximate technique for the approximate analysis of structures with frequency-dependent stiffness and damping matrices. In this paper, the accuracy of this method is investigated by computing the exact and approximate mean square responses of structures containing viscoelastic dampers to random excitation. Closed- form expressions of the mean square error are obtained for single-degree-of-freedom (SDOF) systems under linear hysteretic damping and Maxwell-type damping. The accuracy of the MSE method applied to multi-degree-of-freedom (MDOF) structures with non-classical viscous damping, hysteretic damping and Maxwell-type damping is investigated.

Citation Download Citation

Alessandra Zambrano, Jose A. Inaudi, and James M. Kelly "Accuracy of the modal strain energy method", Proc. SPIE 2193, Smart Structures and Materials 1994: Passive Damping, (1 May 1994); https://doi.org/10.1117/12.174104

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