To solve the problem of obtaining superfine materials, a mathematical model of materials dispersion is proposed. The model uses the Focker-Planck equation to determine the probability density. The physical density of the probability density is interpreted as a differential characteristic of the composition of the ground material. The closure is performed using the equations of material balance and limitations that ensure the performance of low-tonnage technological complexes. Criteria for the controllability of the grinding process are proposed. These criteria take into account the random nature of the processes and the existing disturbances in the chamber of the vortex-acoustic disperser. In this case, the vortex-acoustic disperser in the working range of changing its parameters is considered as a complex physico-mechanical system. The developed mathematical model makes it possible to study the laws of the grinding process in a vortex-acoustic disperser. The model also makes it possible to find the optimal design and operational parameters of the disperser.
The article presents the methods and results of the analysis of the movement of a modeling manipulator such as the Hugh-Stewart platform using Adams-Matlab in order to check and develop a possible trajectory of the working body. Application of Matlab Simulink for solving kinematics problems: determining the extension length of rods along a given trajectory of the movement of the working body. A feature of the Simulink application scheme is the export of physical and mechanical parameters of a solid model from Adams. Mutual integration of Matlab Simulink and Adams View evaluate the implementation of the possibility of implementing a kinematic, comprehensive and force analysis of the mechanism, taking into account its design features due to the use of an apparent prototype. The proposed method of joint modeling is presented in the form of a detailed description of the content of Simulink circuit blocks, their interaction in modeling, the exact mathematical apparatus and the conditions for implementing mutual thoroughness of the Matlab and Adams software packages. The technique was tested on the ascent from constructive platforms while moving along a sexual character such as a given trajectory. The results of a computational experiment are proposed and an analysis is made of the coordinate correspondence of the actual trajectory obtained as a result of modeling in joint simulation with the initial given trajectory for various types of motion.
производстве строительных материалов широко применяется механическая обработка сыпучих материалов, которая сопровождается интенсивным пылеобразованием. Запыленность воздушной среды приводит к профессиональным заболеваниям, потерям готовой продукции, большому экологическому, социально-экономическому ущербу. Радикальным способом борьбы с пылью был бы переход на безотходные замкнутые производственные циклы. Однако внедрение безопасных технологий требует огромных капиталовложений, поэтому еще длительное время технологические мероприятия по снижению пылевыделений будут дополняться устройством обеспыливающей вентиляции и пыле-газоочистки. Для успешной борьбы с пылью необходимо комплексное использование аспирации, вакуумной пылеуборки поверхностей и общеобменной вентиляции. Работа аспирации и ЦПУ отличается высоким энергопотреблением. Поэтому актуальной является задача определения их оптимальных параметров минимизирующих энергозатраты. Параметрической оптимизации комплексных систем обеспыливания должна предшествовать их структурная оптимизация. В качестве основы для ее проведения используется балансовая модель обеспыливания производственного помещения. Ключевые слова: обеспыливающая вентялция, аспирация, вакуумная пылеуборка поверхностей, комплексная система обеспыливания.
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