Sequential coupling analysis method for adaptive step length
A technology of adaptive step size and sequential coupling, applied in the field of multi-field coupled system simulation analysis, can solve problems such as low efficiency and excessive number of iterations, and achieve the effect of avoiding sequence conflicts, ensuring accuracy, reducing data interaction and iterative work
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0032] Such as figure 1 As shown, it is a general flowchart of the present invention in analyzing the coupling problem of the motion field and the electromagnetic field in the short-circuit breaking process of the low-voltage circuit breaker.
[0033] Electrodynamic repulsion is generated between the dynamic and static contacts of low-voltage molded case circuit breakers, including the Holm force generated by the contraction when the current flows through the contacts and the Lorentz force generated by the magnetic field excited by the loop current. The Holm force disappears after the moving and static contacts are separated, and the Lorentz force disappears with the disappearance of the magnetic field. Under the action of electric repulsion, the moving contact arm overcomes the pre-pressure of the contact spring and moves before the operating mechani...
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