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Characteristics simulations of the electrodynamic railgun different constructions and their measurement verification

100%

Piekielny P. , Tomczuk B. , Waindok A.

tom Vol. 72, nr 4

951--969

Dynamic characteristics for three types of railgun constructions were simulated and measured in this work. The simplest construction is the iron-less (IL) railgun, while the two other ones (IC and ICPM) have an iron-core. The iron-core permanent magnet (ICPM) railgun additionally has permanent magnets. To compare their characteristics, similar dimensions of the rails and iron cores were adopted, and the same power supply system was used. Numerical magnetic field analyses and our analytical models have been used to determine the electromagnetic parameters. They were verified experimentally. The transient states of the railguns were studied with our field-circuit mathematical model, and their results were also verified by experiments.

Analysis of transients in DC actuator using Matlab

84%

Pietrowski W. , Stereńczak M. , Łyskawiński W.

tom No. 65

85--90

In this paper the research work presents a analysis of transients in a DC actuator. The construction of linear electromagnetic plunger actuator has been shown. The circuit model of actuator includes electromagnetic and mechanical phenomena. Using software environment Matlab a simulation model has been built. The made investigations show influence dimensions of electromagnetic circuit, power supply and load force on actuator's movement characteristics.