风冷式变压器油箱模态及谐响应的分析

Modal and Harmonic Response Analysis for the Transformer Fuel Tank of Air Cooled

风冷式变压器油箱上的风扇高速转动时会对变压器油箱产生简谐激励力,迫使变压器油箱产生简谐振动。为了解风扇工作过程中对变压器油箱的振动情况,需对变压器油箱进行振动学分析。利用SolidWork建立风冷式变压器油箱三维模型,采用ANSYS对油箱进行模态分析,得到油箱前几阶固有频率和振型云图;在模态分析基础上,对油箱进行谐响应分析,绘制出重要节点沿各方向的位移—频率曲线。为油箱后续的优化改进及风扇的选取与使用提供理论依据。

The fans on the transformer fuel tank of air cooled will arose harmonic excitation force to the fuel tank,and emerge harmonic vibration in the fuel. To study the question of vibration of the transformer fuel tank of air cooled,we should have a vibration analysis of the fuel tank. Establish 3D model of the tank,then establish modal analysis and get the natural frequency and vibration type of the tank. After harmonic response analysis we can get the displacement-frequency curve of the important nodes of the tank. So we can provide a theoretical basis for optimizing of the tank and selection of the fans on the tank.