Mistuning
In
In mechanics mistuning is a lack of symmetry present in a real object that ideally is perfectly symmetric. This phenomenon is studied in relation to turbine disks, for example; it can cause an increase of the forced response that can bring about unexpected failures due to fatigue. Mistuning is caused by manufacturer tolerances, non-homogeneity of the material, the usage, etc., and so it is unavoidable. It has been observed that the amount of increase in the forced response of mistuned turbine disks strongly depends on the physical characteristics of the disk itself: actual efforts to limit the negative effects of this phenomenon upon turbine disks focus on understanding how to design a disk that is influenced minimally by mistuning in the working rotational speed.
Sources
- Kárpáti, János (1975). Bartók's String Quartets. Translated by Fred MacNicol. Budapest: Corvina Press. Cited in Wilson (1992).
- Wilson, Paul (1992). The Music of Béla Bartók. ISBN 0-300-05111-5.
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