Nonlinear deformation of circular discrete ribbed plate under influence of pulse loading

The stress-strain state of a circular disc, discretely finned in a circle, under the influence of the pulse loading, is numerically investigated. Thus the geometric nonlinearity between displacement and deformation is taken into account. The structure consists of boarding and reinforced ribs, the materials of which are the same and obey Hooke's law. The sections of the ribs are constant. The height of the ribs and their locations are specified using a unit function. It is considered that the plate is deformed under the influence of the pulsed loading. A numerical method is used to solve the problem.

Ensuring stable cutting during milling

The methods of damping vibrations arising during milling are investigated. A mathematical model is developed that reflects the relation between the amplitude of the forced vibrations and the parameters of the actuating impulse. The ranges of pulsed loading parameters are established, which ensure stable milling. The parameters of cylindrical mills that provide the minimum amplitude of vibration are determined. Keywords: processing, cutting, milling, vibrations, forced vibrations, damping. [email protected]