Technologies and Engineering

Analysis of vibrational processes in a centrifugal drum washing machine

Purpose. Development and analysis of mathematical model of oscillation processes that occur during material processing in centrifugal drum washing machines, determination of absence conditions of contact deformations of working bodies and body of centrifugal machine. Methodology. The methods of mathematical and dynamic modeling of electromechanical systems using specialized software are used. Result of the study is the development and improvement of a dynamic model for the study of physical processes occurring in the oscillating suspension system of drum machines and centrifuges. A mathematical model (six degrees of freedom) was developed to describe the plane motion of the suspension of a drum machine. The conditions that are responsible for maintaining contact between the left and right body supports with the base are defined. The condition responsible for maintaining the friction bond between the housing and the base (floor) is also highlighted. Additionally, a check was made for the absence of collisions and shocks of the protruding elements of the spring-loaded tank counterbalance system with the lateral, lower and upper walls of the center of the centrifugal drum washer. Scientific novelty. The analytical expressions that determine the dependencies of forces affecting the working bodies of centrifugal automatic washing machines are obtained in the work. The data analysis software was used to check whether the friction connection between the base of the case and the floor is broken, and whether the legs of the case are detached from the floor. Practical significance. The results of the research can be used to develop designs of centrifugal machines of the same type for different industries or domestic applications

oscillatory processes, centrifugal device, washing machine, mathematical modeling, dynamic model