Novel fault positioning method
A new type of fault location technology, applied in aircraft component testing, aircraft parts, ground devices, etc., can solve problems such as time-consuming and labor-intensive, and cannot guarantee the effect, and achieve the effect of simple use, strong promotion and application value, and lower operating threshold
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[0046] Example
[0047] Take the aircraft fuel system as an example, combined with figure 2 , A detailed description of the new fault location method of the present invention:
[0048] Step 1. Fuel system decomposition
[0049] According to the principle of functional independence, the fuel system is decomposed. In this embodiment, the independent components include FR215, FR216, FR25C, the front fuel supply pump, and the rear fuel supply pump.
[0050] Step 2. Establish a database of fuel system experts
[0051] Take the independent component FR216 in the fuel system as an example. The characteristic parameters related to the working state of FR216 are FR216 inlet pressure, FR216 outlet pressure, FR216 outlet flow. If FR216 is working normally, FR216 inlet pressure is between 110-130KPa, FR216 The outlet pressure is between 100-120, and the outlet flow of FR216 is between 0-50m3 / h. The permutation and combination form expert database table 1;
[0052] Table 1
[0053] Parts
[0054]...
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