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Local structural modification using mass and stiffness changes
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DOI：10.1016/S0141-0296(98)00060-1.png)
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Abstract
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This study presents a new approach for structural modification. It determines mass and stiffness modifications of an undamped structural system that are needed to change the dynamic characteristics of the system. This approach formulates the structural modification problem using a set of linear equations. It does not require an eigenvalue solution. The data it needs are only the frequency response function data at designated modification points. Numerical examples are provided to demonstrate the feasibility of the methods developed. (C) 1999 Elsevier Science Ltd. All rights reserved.
Keywords:
structural modification
modal analysis
frequency response functions
dynamic characteristics
inverse problem
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