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  • Research and modernization of the automated oil filling system

    The article discusses the issues of modernization of the automated system for filling petroleum products (ASN). The complexity of maintenance of the automated control system due to the lack of up-to-date documentation and updated software, as well as periodic failures and high cost of spare parts became the main reasons for the implementation of modernization. Automatic control systems based on the law of proportional-integral-differential regulation have been developed: using a shut-off control valve with a positional actuator or a frequency converter to control the ACN. Mathematical models of the automatic control system have been developed in the MATLAB program using the Simulink library. An experimental model of a pumping station was assembled in laboratory conditions, and simulation modeling of the operation of an automated control system for a discharge and filling station was carried out. According to the results of experimental studies on the direct characteristics of assessing the quality of the transient process, the graph of a circuit with a frequency converter demonstrates the best results.

    Keywords: automated pumping station, petroleum products, mathematical models, PID controller

  • Basic algorithm defects of observed bearing rings using the fractal dimension method and neural networks

    To improve the quality of bearing rings, modern production strives to apply new modern methods for detecting defects based on the causes of their occurrence, as well as to introduce quality control systems by creating specialized software. An accurate assessment of the dynamic properties of bearings is very important for machines and helps to avoid serious mechanical damage. As part of the experiments, the main control methods were considered and the most effective one was established - eddy current control, which has a number of advantages compared to others. To prevent the occurrence of defective products in the control system, the fractal dimension method was considered and a neural network was built to solve the tasks of diagnosing.

    Keywords: defect diagnosis, bearings, neural networks, automated control, fractal dimension, SVD filtering, Matlab software, monitoring system.

  • Detection of defects in the surface layer of bearings using the fractal dimension method

    The problem of recognition of defects in the surface layer of polished raceways of bearing rings according to the fractal dimension of the signals of the eddy current sensor is considered

    Keywords: fractal dimension, defect recognition, recognition algorithm

  • Importance of total quality management for machine-building industries

    The issue of quality, reliability and safety of the final products is under consideration. Process approach is the base of quality control system, and mon-itoring program is regarded for illustrative purposes.

    Keywords: Quality, processor approach, quality management, monitoring