Actual Problems in Machine Building 2016 No. 3

Actual Problems in Machine Building. 2016. N 3 Technological Equipment, Machining Attachments and Instruments ____________________________________________________________________ 240 EFFECT OF MECHANICAL LOSSES IN THE OUTPUT PERFORMANCE OF ELECTROMECHANICAL OSCILLATION SYSTEM WITH ELECTROMAGNETIC EXCITATION Neyman L.A. , Ph.D. (Engineering), Assistant Professor, e-mail: neyman@ngs.ru Neyman V.Yu. , D.Sc. (Engineering), Professor, e-mail: nv.nstu@ngs.ru Novosibirsk State Technical University, 20 Prospect K. Marksa, Novosibirsk, 630073, Russian Federation Abstract Dynamical analysis improvement and its capabilities extension are important for the complex analysis and synthesis of the vibratory electromagnetic drive applied in engineering systems for exciting low-frequency oscillations and vibrations. The electric drive dynamic model is based on differential equations of the non-linear circuit electrical balance with respect to d'Alembert principle for a mechanical system with spring linkages. Periodical electromechanical processes are considered as an example for studying dynamical model capabilities of the transient and quasi stationary mode fundamental analysis with structural modeling methods and facilities in Matlab Simulink. It is established that dynamical analysis accuracy is significantly depends on reproduction accuracy of mathematical models of mechanical characteristics of spring linkages and sliding friction forces. The electric drive operation characteristics are obtained from the developed dynamical model. The computer simulation results have been compared with physical experiment data. The results of the dynamical model implementation and operation characteristics analysis can be widely used for other types of machines and devices with reciprocated electromagnetic drives. Keywords linear electromagnetic drive, dynamical model, electromechanical processes, structural modeling methods, operating modes analysis, losses in the mechanical system.