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高压电器  2014 

大型电力变压器油箱辐射噪声预估研究

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Keywords: 电力变压器, 间接边界元法, 声学模型, 数值仿真, 噪声预估, 噪声分析

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Abstract:

针对电力变压器噪声分析的工程需求,开展了基于间接边界元理论的大型电力变压器的油箱辐射噪声预估研究,运用LMS大型声学软件建立了变压器油箱声场计算模型,并采用实测的变压器油箱表面法向振动加速度预估了变压器油箱辐射噪声声场。通过数值仿真结果与实测结果对比分析表明,文中提出的噪声预估方法对于预估变压器油箱辐射噪声声场是有效的和可行的,通过改变变压器油箱的结构,可为电力变压器的低噪声设计提供参考依据。

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