Many vibrating systems when experimentally tested show weak non-linearity. In these cases linear response features such as natural frequencies and damping ratios though clearly identifiable, nevertheless show amplitude dependency. This paper describes an approach where the underlying non-linear diff
LINEAR PATH IDENTIFICATION OF GENERAL NON-LINEAR SYSTEMS
β Scribed by H.J. Rice; K.Q. Xu
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 437 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0888-3270
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β¦ Synopsis
A robust identification technique is presented which extracts the linear frequency response kernel from an input/response measurement of a general non-linear system. Also the number and significance of higher order frequency response kernels required for a complete identification may be assessed from the proposed analysis. The technique is demonstrated on an experimental system incorporating damping and stiffness non-linearities induced by fibrous insulation material.
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