Prediction Method of Qualification Rate of Contactor Release Time Based on Monte Carlo Simulation
A Monte Carlo simulation and release time technology, which is applied in instruments, special data processing applications, electrical digital data processing, etc. It can solve the problems of high design and test costs, long design cycles, etc., to reduce test costs and improve reliability. , the effect of shortening the trial production cycle
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specific Embodiment approach 1
[0041] Specific implementation mode one, see figure 1 This embodiment will be described. A method for predicting the pass rate of contactor release time based on Monte Carlo simulation described in this embodiment, the method includes the following steps:
[0042] Step 1: According to the design documents and process drawings, obtain the design value of the size parameter, the design value of the design parameter, the design value of the adjustment parameter and the tolerance range of each parameter that affect the release time of the contactor, according to the central limit theorem of independent and identical distribution Use MATLAB to generate N groups of three types of parameter combinations that vary within the tolerance range and conform to the normal distribution: size parameters, design parameters, and adjustment parameters. The parameter N is an integer greater than or equal to 1000;
[0043] Step 2: The above N groups of three types of parameter combinations are se...
specific Embodiment approach 2
[0048] Specific implementation mode two, see figure 2 This embodiment will be described. The difference between this embodiment and the Monte Carlo simulation-based contactor release time qualification rate prediction method described in the first specific embodiment is that the contactor release time acquisition module is implemented by software technology, and the working process of this module includes The steps are as follows:
[0049] Step A, setting the calculation parameters of the contactor model and initializing the characteristic parameters;
[0050] Step B, calculating the flux linkage at the current moment from the integral of the coil voltage, current and flux linkage at the previous moment;
[0051] Step C, obtaining the coil current from the coil flux linkage and armature displacement look-up table;
[0052] Step D, the coil current and armature displacement obtained in step C are checked in the comparison table to obtain the electromagnetic attraction force...
specific Embodiment approach 3
[0064] Specific Embodiment 3. The difference between this embodiment and the Monte Carlo simulation-based method for predicting the pass rate of contactor release time described in Embodiment 2 is that the comparison table is the relationship between the coil flux linkage of the contactor and the coil current. and the two-dimensional table of armature displacement, the comparison table is obtained through the following steps:
[0065] Step H, establish a three-dimensional model of the electromagnetic mechanism in the UG software according to the design drawing of the electromagnetic mechanism of the contactor;
[0066] Step 1, through the software finite element software FLUX, according to the three-dimensional model of the electromagnetic mechanism, calculate the coil current, armature displacement, electromagnetic attraction force and flux linkage of multiple groups of contactors;
[0067] Step J, according to step I, obtain the coil current, armature displacement, electroma...
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