Because fault symptom space and fault space have complicated non-linear relations, the mathematical model of diagnosis system is difficult to build up.

由于故障征兆和故障类型之间常常存在复杂的非线性关系，使得诊断系统的数学模型很难获取。

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A case study shows that the are suppression coil with non-linear V-I characteristics will seriously affect the grounding residual current during high resistive grounding fault.

以实例分析出伏安特性非线性的消弧线圈将严重影响高阻接地时的接地残流。

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Based on the measured ground stress data, a 3d non-linear finite element back analysis numerical model for ground stress is set up and the fault and fissure concentrated zone is simulated.

结合实测地应力资料，建立了三维非线性有限元地应力反演分析数值模型，模拟了断层及裂隙密集带。

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