... the method of least squares, penalty functions, Hooke - Jeeves, Pattern search. Results On the basis of the compressor's gas dynamic passport characteristics is made nonlinear mathematical model of the process gas compression in the compressor with regulating valve on the suction. The model includes an approximation of the characteristics of the compressor and the formula for calculating it based on criteria similar to the process of compression. The adequacy of the developed regression was tested ...

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