JMAG can optimize the design of a solenoid to maximize the force while minimizing the volume. This type of problem typically requires a realistic drive excitation. To accomplish this, JMAG can create a high fidelity solenoid model that can then be exported to a control/circuit simulation program. By using a precise plant model (JMAG-RT model), you can now apply a more realistic excitation to your circuit.
Cogging force, thrust force, attractive force, response, eddy current, residual magnetization, current control, induced voltage, efficiency, loss, heat generation, vibration and noise
Detailed Analysis of Solenoid Valves
This case study shows the electromagnetic force vector applied to the plunger when the valve is closed and the flow speed contour of the path in the valve.
As the plunger is attracted by electromagnetic force and the distance with the yoke becomes closer, the phenomenon of flow speed up is accurately simulated. By coupling and solving fluid force with the motion equation, in addition to electromagnetic force and spring force, we have simulated nonlinear response characteristics in detail.
Shotaro Hatanaka, CKD Corporation
Yukihiro Yoshinari, Hitachi Automotive Systems, Ltd.
Here, we will discuss the steps to investigate the effect on responsiveness caused by residual magnetization generated in the magnetic materials, and look at case examples.
In this example, an example is presented where the influence on the electromagnetic force by the presence or absence of inclination is confirmed at each position of the movable part.
For machines requiring high-speed responsiveness for controllers such as solenoid valves and injectors, level of accuracy required in simulation have increased following the advancement of controls. For these machines, the impact eddy currents occur…
In this example, an example where the geometry of a solenoid valve is optimized using a multi-objective optimization algorithm is presented.
In this example, an example of evaluating the difference in responsiveness of an injector when eddy currents are taken into account or not is presented.
For this case, direct current voltage is applied to the solenoid type injector and the response characteristics is obtained after accounting for the effect of the collision and eddy current.