Stryzhak M. Justification of structure and parameters of electropneumatic converters for pneumatic units of processing equipment

Research object: the gas-dynamic and thermodynamic processes in plostyah and electro-pneumatic transducer throttling paths. The purpose of research: theoretical and experimental basis of principles of electro-pneumatic transducers. Research methods: a theoretical study based on the fundamental thermodynamic variable dependencies body mass, used the theory of similarity of the thermo-mechanical systems, the metod of Runge-Kutta, method of root locus, and the transform of Fourier and of Heaviside. Experimental methods based on internal oscillography transients. Theoretical and practical results: the relation of design and the design parameters of the pressure reducing valve with proportional electric management. Established technique for determining the optimal design parameters are derived schedules dimensionless characteristics of the pressure reducing valve to simplify practical calculations. Novelty: the first proposed principle of maximum stability electropneumatic transducer in the form of an optimum arrangement of poles and zeros of its transfer function in the s-plane, and as the ratio of the frequency of maximum power dissipation of the membrane unit and the natural frequency of the relief valve. Extent of introduction: Hydropneumoautomatics and hydaulic units Chair of NTU "KHPI", Corporation "Gidroeleks", Kharkov, Ltd. "Cranovuj electroprivod", Kharkov. Sphere of the use: machine building.