A NEW FAMILY OF MODE-SUPERPOSITION METHODS FOR RESPONSE CALCULATIONS

Date

1993-10-22

Author

AKGUN, MA

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A new family of mode-superposition methods for the computation of the forced response of proportionally damped systems with and without rigid body modes is investigated. The method may be considered to be an extension of the mode-acceleration method. It allows response calculations to be done with a very small subset of the modes of the system. Numerical examples are given for systems of order 20 and 40. Execution times and number of modes required for convergence are recorded. The particular order of the method among the family which takes the shortest time is determined for the example systems. Time savings with the new method are realized compared to the existing mode-displacement and mode-acceleration methods. The method is expected to be particularly suitable for large systems.

Subject Keywords

Mechanical Engineering, Acoustics and Ultrasonics, Mechanics of Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/64073

Journal

JOURNAL OF SOUND AND VIBRATION

DOI

https://doi.org/10.1006/jsvi.1993.1336

Collections

Department of Aerospace Engineering, Article

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Citation Formats

M. AKGUN, “A NEW FAMILY OF MODE-SUPERPOSITION METHODS FOR RESPONSE CALCULATIONS,” JOURNAL OF SOUND AND VIBRATION, pp. 289–302, 1993, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64073.