The paper presents a method for determining the global sensitivity indices of the vibrostability limit to the change of mass-damping-spring parameters in machine tool models. The non-stationary character of the models is handled by the analysis of variants. The global sensitivity indices are calculated on the basis of the frequency of variant appearance and the vibrostability limit that corresponds to each variant. To compute the global sensitivity indices fuzzy set theory is applied.
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2.
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3.
Marchelek, K., 1998b, “Shaping vibrostability of machine tool - cutting process system. Part I: Algorithm of machine tool-cutting process vibrostability shaping,”Archives of Machine Technology and Automation18(2).
4.
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6.
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7.
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8.
Powałka, B., 1998, “A method of modification of machine tool mass-damping-spring parameters with respect to vibrostability”, Ph.D. Thesis, Technical University of Szczecin (in Polish).
9.
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