Mass and Stiffness Modifications with Unmodified Eigenstructure Preserving

Jun Yang; Xu Shi Lu; Jia Fan Zhang; Hua Jiang Ouyang

doi:10.4028/www.scientific.net/AMM.401-403.475

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 401-403Mass and Stiffness Modifications with Unmodified...

Mass and Stiffness Modifications with Unmodified Eigenstructure Preserving

Abstract:

A necessary and sufficient condition is proposed for the incremental mass and stiffness matrices that modify some eigenpairs while keeping other eigenpairs unchanged, which requires the knowledge of only the few eigenpairs to be modified of the original undamped vibration system. The application prospects are proposed based on this formulation.

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Periodical:

Applied Mechanics and Materials (Volumes 401-403)

Pages:

475-478

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.401-403.475

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Online since:

September 2013

Authors:

Jun Yang, Xu Shi Lu, Jia Fan Zhang, Hua Jiang Ouyang

Keywords:

Mass, Partially Prescribed Spectral Information, Stiffness Modification, Structure Dynamic Modification, Undamped Vibration System

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References

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