SU407344A1 - DEVICE FOR MODELING ELECTROMAGNETIC MECHANISMS - Google Patents

Description

The invention relates to the field of analog computing technology and may be used to simulate electromagnet mechanisms.

The known devices for the simulation of electromagnetic mechanisms, comprising interconnected blocks for solving electric power and reproducing traction electromagnetic force and a block for solving the differential equation of motion of the electromagnet.

From the nominal, well-known devices for modeling electromagnetic mechanisms, it is possible to simulate symmetric electromagnetic mechanisms with two electromatnits, using two similar schemes for solving the electric circuit and reproducing the electromagnetic force, but this circuit is cumbersome and of low accuracy. as in them. it is necessary to use at least four small-scale and complex non-linear blocks of two variables.

Thus, the purpose of the present invention is to make possible the simulation of symmetric electromagnetic mechanisms with two identical electromagnets without duplicating the circuit of the electric circuit decision block and reproducing the electromagnetic traction electromagnetic force.

This goal is achieved in that the output of the block

modelpro;; The electric value of an electromagnet is connected to the input of a simulation unit of a two-phase electromagnet through an adder, to one input of which the output is connected to the aforementioned electric circuit and reproducing unit of an electromagnet;

In the proposed device, the accuracy is increased. and bulkiness is reduced, as the circuit is simplified.

FIG. 1 shows a block diagram of the described device; in fig. 2 - time diagrams.

The device consists of an electromagnet electric circuit simulation unit 1, output 2 connected to input 3 of adder 4, adjustable delay unit 5, input connected to output 2 of block I, and output to the input of inverter 6, in turn, output connected to input 7 of the adder, block 8, the simulation of the motion of the electromagnet core, the input connected to the output of the adder 4, and the output to the output of the block. At the input 9 of the unit /, control signals HN1 are given. They are signals for the first electromagnet.

The device works as follows.

At the output of the unit /, a magnet force is obtained (see Fig. 2, b), corresponding to the force of a single electromagnet when a control signal is applied to it, for example, as in FIG. 2, a. Through input 9, a sipnal (see Fig. 2, b) acts in the block 8 circuit, which leads to a change in the coordinate of the movement of the electromagnet core to one side.

The simulation scheme of another electromagnet to effect the movement of a co.rnnnata core. In the other direction in the scheme, it is replaced by an adjustable delay of the electromagnetic traction force obtained for the first electromagnet. In a real electromagnetic mechanism, the control force would act in the time intervals to ,,, etc. Therefore, the delay time of the delay unit is regulated and is equal to half the time period of the control pulses of the first electromagnet (see Fig. 2, a), since in symmetric electromagnetic mechanisms, the control signals for Both electromagnets are also identical and symmetric. After adder 4, the input of block 8 receives signals (see Fig. 2, c), which correspond to traction electromagnetic signals of two; identical electromagnets, which serve one for moving the core in one direction, the other in the other direction. The replacement by the delay circuit of the simulation of the second electromagnet is possible when the simulated electromagnetic mechanism is symmetric and the electromagnets are identical. In this case, it is possible to investigate the steady-state periodic modes of motion, which are the main rela-tions of many practical electromagnetic mechanisms.

Subject invention

A device for modeling electromagnetic mechanisms containing an electromagnet electric target modeling unit connected to an electromagnet core motion modeling block, characterized in that, in order to expand the class of tasks, it contains an adjustable delay unit whose INPUT is connected to the output of an electromagnet electrical circuit modeling block an inverter, to the input of which the output of the adjustable lag block is connected, and an adder, to the first input of which is connected the output of the block of simulators An electric circuit of the electromagnet, and the output of the inverter is connected to the second input, and the output of the adder is connected to the input of the unit for modeling the movement of the core of the electromagnet.