Identification of a bolted-joint model with fuzzy parameters loaded normal to the contact interface
✍ Scribed by Michael Hanss; Stefan Oexl; Lothar Gaul
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 180 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0093-6413
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✦ Synopsis
Modeling and identification of a joint with load normal to the contact interface of two connected rods is discussed in this paper. An experimental setup for the analysis of the joint is proposed and measurement results are presented. The perception that both the damping behavior and the stiffness of the joint are influenced by a large number of effects that can hardly be modeled motivates the use of a rather simple model, but with fuzzy-valued model parameters, instead of crisp ones. In this concept, the uncertainty and variability of the model parameters can be taken into account by representing the parameters as fuzzy numbers that can be identified on the basis of the measured data. The identification of the fuzzy parameters proves to be a non-trivial problem which can be solved by applying the transformation method as a special implementation of fuzzy arithmetic.