Research of processes of producing materials by technical power loading systems

Abstract

An increase in the effective working process of the crusher is achieved when it operates in the vicinity of resonance, i.e. at a high value of the coefficient of resonant amplification of oscillations. The optimal values of the amplitude of the oscillations of the masses have the greatest values, provided that the coefficient of regulation of elasticity in frequency n is in the range of 0.6 ≤ n ≤ 1. Within the frequency range of 14.5 Hz<f<26 Hz, material is effectively crushed. The numerical values of the coefficient are established, which determine the rational ratios of vibration masses. The studies carried out and their results indicate that the main stresses causing the destruction of the material are shear stress. Analytical equations are obtained that reflect the picture of energy consumption for the destruction of the material. Such studies are planned as a continuation of the topic under consideration through experimental studies and consideration of several members of the series and optimization of the parameters of crushing machines. The proposed approach to studying the energy characteristics of material destruction in the crusher chamber with a guaranteed zone of stability of parameters in the resonance zone can be used for other processes. Such processes include the destruction of materials during dynamic cutting of soils, processing of materials in mills and sorting of materials, which are widely used in Ukraine abroad. An algorithm and method for calculating the main parameters of a vibration crusher have been developed.

Determining the influence of higher harmonics of nonlinear technological load in dynamic action systems

“…The construction of complex vibration systems requires calculation with given parameters, and this research allows us to solve such a problem. This approach is provided by promising research [5], the results obtained in this work partially reflect this within the scope of the implementation of the compaction process. The presence of higher harmonics in the studied system is due to the nonlinear effects of both the design of the installation and the technological load.…”

“…The research results relate to the main frequencies of oscillations, although the given multi-mass calculation scheme also has other harmonics of oscillations that need to be taken into account in the overall motion system. In [5], the search for such systems and the application of reliable models of real processes, which are based on the detection of patterns of change in the technological process of different physical properties of the working bodies of vibrating machines and processing environments, are reported. The cited paper proposes the idea of using a hybrid model that takes into account both discrete and distributed parameters.The authors of the work overcome the mathematical difficulties of solving such problems by reducing discrete-continuous systems to discrete ones.…”