structural damping

The paper examines the potential use of dry friction in designing metal-cutting tools to dampen vibration energy. A mathematical model of the self-oscillating system "machine-fixture-tool-workpiece" has been developed and analyzed, considering structural friction within the assembly of the cutting tool. The study has investigated structural friction's impact on the cutter body's self-oscillation amplitude at the cutter tip and the workpiece surface.

Dry and viscous friction is used as a damper of oscillation energy in the construction of metal-cutting tools. A mathematical model of a two-mass oscillatory scheme of the insert of an assembled milling cutter was developed and studied, one of the masses of which models the clamped part of the insert - a press connection with dry friction, and the other - the cantilever part, which is subject to self-oscillations that are possible in the process of metal cutting.

A mathematical model of four mass oscillating circuit cutting machine was developed and studied in this paper. The influence of the internal friction in the joints of structural elements on the machine tool vibration amplitude and details. Effective self-oscillation amplitude blanking tool is possible by choosing the optimal parameters of the tool body frictional connection with tool holders.

Mathematical model multimass oscillating circuit of machine tools developed and investigated in this study. Effect parameters internal friction in the joints of structural elements relative to the machine tool vibration amplitude and the details analyzed. Specified on the ambiguity of the influence of parameters damping vibrational energy of the relative amplitude of oscillation of the tool and details.