| Because magnetic latching relay has the advantages of low energy consumption, small volume,strong load capacity, material saving and other advantages, it becomes more and more popular. The dynamic performance index of Magnetic latching relay directly affects whether the electrical circuit which it controls can work normally. So the research of its dynamic performance is very important.A three-phase magnetic latching relay was taken as the research object, with the help of Pro/E, ANSYS and ADAMS software combining together and its dynamic simulation was done. Firstly, according to the drawings the relay’s 3D model was established in Pro/E. The built model was saved as X_T format file and was passed from Pro/E into ADAMS through the interface between the two software. In ADAMS, the virtual prototype model was built by adding constraints, drivings and voltage equation according to the actual situation, making the model simulate dynamically on the real significance.Secondly, the rigid body model of the magnetic latching relay was simulated. The received current characteristic curves and the measured current curves was compared to verify the simulated curves’ reliability and validity. The displacement and velocity characteristics of the armature and the contacts in the action mechanism were analyzed. The design variables in ADAMS were used to study the influences of different values of excitation voltage pulse and pulse width on the dynamic characteristics of magnetic relay. The stiffness coefficients of the spring assembly were parameterized and best combination of them were chosen to realize the optimization design of the magnetic latching relay.At last, the modal neutral files, obtained from ANSYS, of the parts affecting dynamics simulation accuracy mostly were imported to ADAMS through the interface. The rigid flexible coupling model of the magnetic latching relay was built and simulated dynamically to analyze the dynamic characteristics of the relay. |
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