Abstract. The present paper deals with estimation of the elasto-damping parameters of a cone inertial crusher mounting. The numerical values of these parameters are crucial for accurate reproduction of the machine vibrational behavior and dynamical model adequacy. Due to the significant difficulties arising during the purely theoretical determination of the stiffness and damping parameters of the rubber vibroisolators it is well-suited to use a theoretical-experimental approach. The developed approach is based on the theoretical determination of the mounting stiffness parameters as a function of two experimentally measured natural frequencies of the mechanical system. The crusher isrepresented as a six degrees of freedom system with two planes of symmetry. By using the system characteristic polynomial, the theoretical derivation of mathematical relationships for the mechanical system natural frequencies as a function of stiffness, inertial and geometrical parameters is performed. A good agreement is shown when comparing the experimental and the theoretical results for the system kinematical characteristics.
The article discusses the topic of the specific power consumption of a drum mill type SAG 8.5x5.3. The purpose of the study is to determine the influence of some basic parameters like angular velocity of the mill drum, the wear on the drum’s lining, mass of the mill filling, loading rate of the mill with ore and flow rate of incoming water of the product to be milled on the relative power consumption of the mill for maintaining quality. To determine the energy consumption of the mill, the listed parameters were measured and a Fisher matrix was constructed. In accordance with the selected target function, energy consumption patterns are synthesised depending on the loading rate of the mill with ore, the mass of the mill filling,the flow rate of the incoming water and the wear on the drum’s lining. Data processing was performed using the STATGRAPHICS computer programme and an adequate model has been found according to the selected target function. The target function has been found to satisfy the conditions for maintaining quality and reducing costs.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.