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某变速器箱体噪声传递函数分析

Yu Lei,Sun Zhangdong,Zhang Nan,Zhang Mingyang

Journal of Hubei University of Automotive Technology（2022）

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Abstract
为研究某电动汽车变速器通过箱体辐射到外界的噪声,基于直接边界元法建立噪声传递函数分析模型,对6个轴承孔到距离箱体表面1m处左测点、右测点、上测点及前测点进行分析,结果表明:在上测点和前测点处某频率与箱体有限元模态吻合,声压值超过限定值;结构优化后箱体辐射噪声的声压值满足使用要求.
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