Mysyk M. Improving the efficiency of the machining process flows of bar wood blanks

Object of research - machining workflows of bar wooden blanks. Goal - increasing the efficiency of the machining workflows of bar wooden blanks through improved information technology methods of their design. Methods - mathematical statistics, the phase change, simulation, correlation-regression analysis, random search, synthesis of artificial neural networks, Hooke - Jeeves. Scientific novelty. First discovered extreme dependence increase the actual performance of the workflows from equipment nominal capacity sequences and the duration stability coefficients of technological operations and obtained mathematical model to assess the actual performance of the workflows, which allowed them to justify the rational arrangement, taking into account the stochastic nature of the operations durations. Received a new analytical expression for estimating the overlay losses in the machining workflows of bar wooden blanks, allows us to compute the value of the loss of working time for very stable durations of technological operations. To determine the rational workflows arrangement options a new structure of an artificial neural network was developed, thus reducing the duration of the simulation experiment for choosing optimal parameters of the process equipment, resulting in a further developed information technology methods of machining workflows wood processing design. Practical value: defined the value of the statistical characteristics of technological machining operations squared wooden blanks durations performed on equipment for cross cutting optimization, finger joints, turning and grinding of parts that allows justify rational arrangement options process flows considering the stochastic nature of the operations durations. The use of the simulation-optimization model of machining workflows of bar wooden blanks to reduce error in estimating the actual performance of up to 1% and synthesize rational structural-parametric variants of the workflows and form requirements to designed lines control systems. Recommendations on improving the structure of line for cross cutting optimization, parameters of finger joints line and interoperable inventory capacitance in bar wooden blanks machining workflows. Designed software for performance evaluating and optimize the structure and parameters of the workflows are used by JSC "Furniture Factory "Stryi". Application area: woodworking.