KINEMATIC MODEL OF TECHNOLOGICAL DRUM SHROUD MACHINING
The PURPOSE of the paper is to study the influence of cross sectional shape errors of a technological drum shroud and technological modes on machined surface and tool interaction and consequently on rolling surface shaping under continuous machining. METHODS. The considered problems are solved on the basis of the numerical methods of research, approximation, minimization and interpolation of functions of several variables. RESULTS. A kinematic model is developed that demonstrates shaping of the shroud cross sectional profile depending on the errors of its shape and processing modes. The programming features of simulation in MATLAB are considered. The method of deviation from roundness calculation in accordance with the GOST R 53442-2009 is proposed for the calculated profiles of shroud cross section. The order of calculations, results of solving the problems of shroud profile synthesis, analysis of shroud movements and calculation of deviations from roundness are shown on example. The process of shape error correction is demonstrated. CONCLUSION. The proposed kinematic model allows to study the effect of errors in cross sectional shapes of technological drum shrouds and the modes of their mechanical treatment on rolling surface shaping. The considered modeling process has been adapted to the extendable range of analyzed features of shroud mechanical machining by special portable machine tools.