Abstract
The research results presented in this article are important because information on machine tools for machining wheelsets is scarce in the literature, due to technical limitations related to large machine tool dimensions, a limited number of manufacturers and non-standard variants. This paper presents the findings of experimental and finite element method (FEM) simulation studies on the vibration of bodies used in Underfloor Wheel Lathes. Two bodies, varying in shape, dimensions, and weight, were examined, with their common characteristics being their purpose, material (cast iron), and casting technology. The bodies underwent experimental and numerical modal analyses to determine damping coefficients as a function of vibration frequency. The study was conducted on both free-suspended bodies and bodies positioned and leveled on a foundation. The results of the experimental and numerical tests were compared, showing good convergence in terms of natural vibration frequency and form.
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