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Propagation of discontinuities in vibrating strings subject to solid friction

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Sommario

Si studia la propagazione, in una corda vibrante soggetta ad attrito secco, di discontinuità di accelerazione e curvatura, che corrispondono all'avviarsi e al fermarsi della corda, in un tempo finito o infinito. Le discontinuità collegate con la discontinuità della legge d'attrito si propagano con una velocità che, in generale, differisce dalle velocità caratteristiche. Dopo uno studio generale del problema si danno esempi.

Summary

We study the propagation, in a vibrating string subject to solid friction, of discontinuities of acceleration and curvature, which correspond to the starting and stopping, for finite or infinite waiting time, of the string. Those discontinuities related to the discontinuity of the friction law, propagate with a velocity which, in general, differs from the characteristic velocities. After a general study of the problem, examples are given.

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References

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Cabannes, H. Propagation of discontinuities in vibrating strings subject to solid friction. Meccanica 14, 175–179 (1979). https://doi.org/10.1007/BF02128433

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  • DOI: https://doi.org/10.1007/BF02128433

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